Attachment 710531 Details for Bug 921932 – Update to upstream release 1.3.3

[patch] Update to upstream release 1.3.3

0001-Update-to-upstream-release-1.3.3.patch (text/plain), 2.04 MB, created by Jamie Nguyen on 2013-03-15 09:59:50 UTC

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Creator: Jamie Nguyen

Created: 2013-03-15 09:59:50 UTC

Size: 2.04 MB

patch

obsolete

>From c94169994e536c6640bbc49dd991c0d2a7ee2065 Mon Sep 17 00:00:00 2001
>From: Jamie Nguyen <j@jamielinux.com>
>Date: Fri, 15 Mar 2013 09:39:35 +0000
>Subject: [PATCH 1/2] Update to upstream release 1.3.3
>
>---
> .gitignore                                         |     2 +-
> 0001-Disable-YUI-compression.patch                 |   421 -
> 0002-Fix-version-number.patch                      |    25 -
> ...paths-to-use-usr-share-instead-of-usr-lib.patch |    43 -
> 0004-Remove-pre-builds.patch                       | 45901 -------------------
> ...paths-to-use-usr-share-instead-of-usr-lib.patch |    43 +
> lessjs.spec                                        |    39 +-
> sources                                            |     2 +-
> 8 files changed, 57 insertions(+), 46419 deletions(-)
> delete mode 100644 0001-Disable-YUI-compression.patch
> delete mode 100644 0002-Fix-version-number.patch
> delete mode 100644 0003-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch
> delete mode 100644 0004-Remove-pre-builds.patch
> create mode 100644 lessjs-1.3.1-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch
>
>diff --git a/.gitignore b/.gitignore
>index 5c5b3de..aa0bb9f 100644
>--- a/.gitignore
>+++ b/.gitignore
>@@ -1 +1 @@
>-/less.js-1.3.1.tar.gz
>+/less-1.3.3.tar.gz
>diff --git a/0001-Disable-YUI-compression.patch b/0001-Disable-YUI-compression.patch
>deleted file mode 100644
>index 1cd30c1..0000000
>--- a/0001-Disable-YUI-compression.patch
>+++ /dev/null
>@@ -1,421 +0,0 @@
>-From d3a4f14a3c795e5873663fbb876617d517c307f5 Mon Sep 17 00:00:00 2001
>-From: Stephen Gallagher <sgallagh@redhat.com>
>-Date: Wed, 19 Dec 2012 08:57:24 -0500
>-Subject: [PATCH 1/4] Disable YUI compression
>-
>-This is necessary to avoid bundling cssmin.js in Fedora/EPEL.
>-
>-Also remove cssmin.js from the sources.
>----
>- bin/lessc                |   3 +
>- lib/less/cssmin.js       | 355 -----------------------------------------------
>- lib/less/lessc_helper.js |   1 -
>- lib/less/parser.js       |   4 +-
>- 4 files changed, 4 insertions(+), 359 deletions(-)
>- delete mode 100644 lib/less/cssmin.js
>-
>-diff --git a/bin/lessc b/bin/lessc
>-index 690535febd2f011cd079e4e7a2c771f1dfff04b6..af96ea237b3fb82284b38babf6562b7c5849f668 100755
>---- a/bin/lessc
>-+++ b/bin/lessc
>-@@ -59,6 +59,9 @@ args = args.filter(function (arg) {
>-             break;
>-         case 'yui-compress':
>-             options.yuicompress = true;
>-+            sys.puts("ERROR: YUI compression is not available on this platform.");
>-+            currentErrorcode = 3;
>-+            continueProcessing = false;
>-             break;
>-         case 'no-color':
>-             options.color = false;
>-diff --git a/lib/less/cssmin.js b/lib/less/cssmin.js
>-deleted file mode 100644
>-index 427de71c06fdd9c98c604b47eb5a036fd26b66aa..0000000000000000000000000000000000000000
>---- a/lib/less/cssmin.js
>-+++ /dev/null
>-@@ -1,355 +0,0 @@
>--/**
>-- * cssmin.js
>-- * Author: Stoyan Stefanov - http://phpied.com/
>-- * This is a JavaScript port of the CSS minification tool
>-- * distributed with YUICompressor, itself a port
>-- * of the cssmin utility by Isaac Schlueter - http://foohack.com/
>-- * Permission is hereby granted to use the JavaScript version under the same
>-- * conditions as the YUICompressor (original YUICompressor note below).
>-- */
>--
>--/*
>--* YUI Compressor
>--* http://developer.yahoo.com/yui/compressor/
>--* Author: Julien Lecomte - http://www.julienlecomte.net/
>--* Copyright (c) 2011 Yahoo! Inc. All rights reserved.
>--* The copyrights embodied in the content of this file are licensed
>--* by Yahoo! Inc. under the BSD (revised) open source license.
>--*/
>--var YAHOO = YAHOO || {};
>--YAHOO.compressor = YAHOO.compressor || {};
>--
>--/**
>-- * Utility method to replace all data urls with tokens before we start
>-- * compressing, to avoid performance issues running some of the subsequent
>-- * regexes against large strings chunks.
>-- *
>-- * @private
>-- * @method _extractDataUrls
>-- * @param {String} css The input css
>-- * @param {Array} The global array of tokens to preserve
>-- * @returns String The processed css
>-- */
>--YAHOO.compressor._extractDataUrls = function (css, preservedTokens) {
>--
>--    // Leave data urls alone to increase parse performance.
>--    var maxIndex = css.length - 1,
>--        appendIndex = 0,
>--        startIndex,
>--        endIndex,
>--        terminator,
>--        foundTerminator,
>--        sb = [],
>--        m,
>--        preserver,
>--        token,
>--        pattern = /url\(\s*(["']?)data\:/g;
>--
>--    // Since we need to account for non-base64 data urls, we need to handle 
>--    // ' and ) being part of the data string. Hence switching to indexOf,
>--    // to determine whether or not we have matching string terminators and
>--    // handling sb appends directly, instead of using matcher.append* methods.
>--
>--    while ((m = pattern.exec(css)) !== null) {
>--
>--        startIndex = m.index + 4;  // "url(".length()
>--        terminator = m[1];         // ', " or empty (not quoted)
>--
>--        if (terminator.length === 0) {
>--            terminator = ")";
>--        }
>--
>--        foundTerminator = false;
>--
>--        endIndex = pattern.lastIndex - 1;
>--
>--        while(foundTerminator === false && endIndex+1 <= maxIndex) {
>--            endIndex = css.indexOf(terminator, endIndex + 1);
>--    
>--            // endIndex == 0 doesn't really apply here
>--            if ((endIndex > 0) && (css.charAt(endIndex - 1) !== '\\')) {
>--                foundTerminator = true;
>--                if (")" != terminator) {
>--                    endIndex = css.indexOf(")", endIndex); 
>--                }
>--            }
>--        }
>--
>--        // Enough searching, start moving stuff over to the buffer
>--        sb.push(css.substring(appendIndex, m.index));
>--
>--        if (foundTerminator) {
>--            token = css.substring(startIndex, endIndex);
>--            token = token.replace(/\s+/g, "");
>--            preservedTokens.push(token);
>--
>--            preserver = "url(___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___)";
>--            sb.push(preserver);
>--
>--            appendIndex = endIndex + 1;
>--        } else {
>--            // No end terminator found, re-add the whole match. Should we throw/warn here?
>--            sb.push(css.substring(m.index, pattern.lastIndex));
>--            appendIndex = pattern.lastIndex;
>--        }
>--    }
>--
>--    sb.push(css.substring(appendIndex));
>--
>--    return sb.join("");
>--};
>--
>--/**
>-- * Utility method to compress hex color values of the form #AABBCC to #ABC.
>-- * 
>-- * DOES NOT compress CSS ID selectors which match the above pattern (which would break things).
>-- * e.g. #AddressForm { ... }
>-- *
>-- * DOES NOT compress IE filters, which have hex color values (which would break things). 
>-- * e.g. filter: chroma(color="#FFFFFF");
>-- *
>-- * DOES NOT compress invalid hex values.
>-- * e.g. background-color: #aabbccdd
>-- *
>-- * @private
>-- * @method _compressHexColors
>-- * @param {String} css The input css
>-- * @returns String The processed css
>-- */
>--YAHOO.compressor._compressHexColors = function(css) {
>--
>--    // Look for hex colors inside { ... } (to avoid IDs) and which don't have a =, or a " in front of them (to avoid filters)
>--    var pattern = /(\=\s*?["']?)?#([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])(\}|[^0-9a-f{][^{]*?\})/gi,
>--        m,
>--        index = 0,
>--        isFilter,
>--        sb = [];
>--
>--    while ((m = pattern.exec(css)) !== null) {
>--
>--        sb.push(css.substring(index, m.index));
>--
>--        isFilter = m[1];
>--
>--        if (isFilter) {
>--            // Restore, maintain case, otherwise filter will break
>--            sb.push(m[1] + "#" + (m[2] + m[3] + m[4] + m[5] + m[6] + m[7]));
>--        } else {
>--            if (m[2].toLowerCase() == m[3].toLowerCase() &&
>--                m[4].toLowerCase() == m[5].toLowerCase() &&
>--                m[6].toLowerCase() == m[7].toLowerCase()) {
>--
>--                // Compress.
>--                sb.push("#" + (m[3] + m[5] + m[7]).toLowerCase());
>--            } else {
>--                // Non compressible color, restore but lower case.
>--                sb.push("#" + (m[2] + m[3] + m[4] + m[5] + m[6] + m[7]).toLowerCase());
>--            }
>--        }
>--
>--        index = pattern.lastIndex = pattern.lastIndex - m[8].length;
>--    }
>--
>--    sb.push(css.substring(index));
>--
>--    return sb.join("");
>--};
>--
>--YAHOO.compressor.cssmin = function (css, linebreakpos) {
>--
>--    var startIndex = 0,
>--        endIndex = 0,
>--        i = 0, max = 0,
>--        preservedTokens = [],
>--        comments = [],
>--        token = '',
>--        totallen = css.length,
>--        placeholder = '';
>--
>--    css = this._extractDataUrls(css, preservedTokens);
>--
>--    // collect all comment blocks...
>--    while ((startIndex = css.indexOf("/*", startIndex)) >= 0) {
>--        endIndex = css.indexOf("*/", startIndex + 2);
>--        if (endIndex < 0) {
>--            endIndex = totallen;
>--        }
>--        token = css.slice(startIndex + 2, endIndex);
>--        comments.push(token);
>--        css = css.slice(0, startIndex + 2) + "___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_" + (comments.length - 1) + "___" + css.slice(endIndex);
>--        startIndex += 2;
>--    }
>--
>--    // preserve strings so their content doesn't get accidentally minified
>--    css = css.replace(/("([^\\"]|\\.|\\)*")|('([^\\']|\\.|\\)*')/g, function (match) {
>--        var i, max, quote = match.substring(0, 1);
>--
>--        match = match.slice(1, -1);
>--
>--        // maybe the string contains a comment-like substring?
>--        // one, maybe more? put'em back then
>--        if (match.indexOf("___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_") >= 0) {
>--            for (i = 0, max = comments.length; i < max; i = i + 1) {
>--                match = match.replace("___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_" + i + "___", comments[i]);
>--            }
>--        }
>--
>--        // minify alpha opacity in filter strings
>--        match = match.replace(/progid:DXImageTransform\.Microsoft\.Alpha\(Opacity=/gi, "alpha(opacity=");
>--
>--        preservedTokens.push(match);
>--        return quote + "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___" + quote;
>--    });
>--
>--    // strings are safe, now wrestle the comments
>--    for (i = 0, max = comments.length; i < max; i = i + 1) {
>--
>--        token = comments[i];
>--        placeholder = "___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_" + i + "___";
>--
>--        // ! in the first position of the comment means preserve
>--        // so push to the preserved tokens keeping the !
>--        if (token.charAt(0) === "!") {
>--            preservedTokens.push(token);
>--            css = css.replace(placeholder,  "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___");
>--            continue;
>--        }
>--
>--        // \ in the last position looks like hack for Mac/IE5
>--        // shorten that to /*\*/ and the next one to /**/
>--        if (token.charAt(token.length - 1) === "\\") {
>--            preservedTokens.push("\\");
>--            css = css.replace(placeholder,  "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___");
>--            i = i + 1; // attn: advancing the loop
>--            preservedTokens.push("");
>--            css = css.replace("___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_" + i + "___",  "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___");
>--            continue;
>--        }
>--
>--        // keep empty comments after child selectors (IE7 hack)
>--        // e.g. html >/**/ body
>--        if (token.length === 0) {
>--            startIndex = css.indexOf(placeholder);
>--            if (startIndex > 2) {
>--                if (css.charAt(startIndex - 3) === '>') {
>--                    preservedTokens.push("");
>--                    css = css.replace(placeholder,  "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___");
>--                }
>--            }
>--        }
>--
>--        // in all other cases kill the comment
>--        css = css.replace("/*" + placeholder + "*/", "");
>--    }
>--
>--
>--    // Normalize all whitespace strings to single spaces. Easier to work with that way.
>--    css = css.replace(/\s+/g, " ");
>--
>--    // Remove the spaces before the things that should not have spaces before them.
>--    // But, be careful not to turn "p :link {...}" into "p:link{...}"
>--    // Swap out any pseudo-class colons with the token, and then swap back.
>--    css = css.replace(/(^|\})(([^\{:])+:)+([^\{]*\{)/g, function (m) {
>--        return m.replace(":", "___YUICSSMIN_PSEUDOCLASSCOLON___");
>--    });
>--    css = css.replace(/\s+([!{};:>+\],])/g, '$1');
>--    css = css.replace(/___YUICSSMIN_PSEUDOCLASSCOLON___/g, ":");
>--
>--    // retain space for special IE6 cases
>--    css = css.replace(/:first-(line|letter)(\{|,)/g, ":first-$1 $2");
>--
>--    // no space after the end of a preserved comment
>--    css = css.replace(/\*\/ /g, '*/');
>--
>--
>--    // If there is a @charset, then only allow one, and push to the top of the file.
>--    css = css.replace(/^(.*)(@charset "[^"]*";)/gi, '$2$1');
>--    css = css.replace(/^(\s*@charset [^;]+;\s*)+/gi, '$1');
>--
>--    // Put the space back in some cases, to support stuff like
>--    // @media screen and (-webkit-min-device-pixel-ratio:0){
>--    css = css.replace(/\band\(/gi, "and (");
>--
>--
>--    // Remove the spaces after the things that should not have spaces after them.
>--    css = css.replace(/([!{}:;>+\(\[,])\s+/g, '$1');
>--
>--    // remove unnecessary semicolons
>--    css = css.replace(/;+\}/g, "}");
>--
>--    // Replace 0(px,em,%) with 0.
>--    css = css.replace(/([\s:])(0)(px|em|%|in|cm|mm|pc|pt|ex)/gi, "$1$2");
>--
>--    // Replace 0 0 0 0; with 0.
>--    css = css.replace(/:0 0 0 0(;|\})/g, ":0$1");
>--    css = css.replace(/:0 0 0(;|\})/g, ":0$1");
>--    css = css.replace(/:0 0(;|\})/g, ":0$1");
>--
>--    // Replace background-position:0; with background-position:0 0;
>--    // same for transform-origin
>--    css = css.replace(/(background-position|transform-origin|webkit-transform-origin|moz-transform-origin|o-transform-origin|ms-transform-origin):0(;|\})/gi, function(all, prop, tail) {
>--        return prop.toLowerCase() + ":0 0" + tail;
>--    });
>--
>--    // Replace 0.6 to .6, but only when preceded by : or a white-space
>--    css = css.replace(/(:|\s)0+\.(\d+)/g, "$1.$2");
>--
>--    // Shorten colors from rgb(51,102,153) to #336699
>--    // This makes it more likely that it'll get further compressed in the next step.
>--    css = css.replace(/rgb\s*$\s*([0-9,\s]+)\s*$/gi, function () {
>--        var i, rgbcolors = arguments[1].split(',');
>--        for (i = 0; i < rgbcolors.length; i = i + 1) {
>--            rgbcolors[i] = parseInt(rgbcolors[i], 10).toString(16);
>--            if (rgbcolors[i].length === 1) {
>--                rgbcolors[i] = '0' + rgbcolors[i];
>--            }
>--        }
>--        return '#' + rgbcolors.join('');
>--    });
>--
>--    // Shorten colors from #AABBCC to #ABC.
>--    css = this._compressHexColors(css);
>--
>--    // border: none -> border:0
>--    css = css.replace(/(border|border-top|border-right|border-bottom|border-right|outline|background):none(;|\})/gi, function(all, prop, tail) {
>--        return prop.toLowerCase() + ":0" + tail;
>--    });
>--
>--    // shorter opacity IE filter
>--    css = css.replace(/progid:DXImageTransform\.Microsoft\.Alpha\(Opacity=/gi, "alpha(opacity=");
>--
>--    // Remove empty rules.
>--    css = css.replace(/[^\};\{\/]+\{\}/g, "");
>--
>--    if (linebreakpos >= 0) {
>--        // Some source control tools don't like it when files containing lines longer
>--        // than, say 8000 characters, are checked in. The linebreak option is used in
>--        // that case to split long lines after a specific column.
>--        startIndex = 0;
>--        i = 0;
>--        while (i < css.length) {
>--            i = i + 1;
>--            if (css[i - 1] === '}' && i - startIndex > linebreakpos) {
>--                css = css.slice(0, i) + '\n' + css.slice(i);
>--                startIndex = i;
>--            }
>--        }
>--    }
>--
>--    // Replace multiple semi-colons in a row by a single one
>--    // See SF bug #1980989
>--    css = css.replace(/;;+/g, ";");
>--
>--    // restore preserved comments and strings
>--    for (i = 0, max = preservedTokens.length; i < max; i = i + 1) {
>--        css = css.replace("___YUICSSMIN_PRESERVED_TOKEN_" + i + "___", preservedTokens[i]);
>--    }
>--
>--    // Trim the final string (for any leading or trailing white spaces)
>--    css = css.replace(/^\s+|\s+$/g, "");
>--
>--    return css;
>--
>--};
>--
>--exports.compressor = YAHOO.compressor;
>-diff --git a/lib/less/lessc_helper.js b/lib/less/lessc_helper.js
>-index 7c051be5e70150336b2a1c33971ccdccacd91dfa..dbee896a26f1fca7d5d27c5a24251a4d4cea0725 100644
>---- a/lib/less/lessc_helper.js
>-+++ b/lib/less/lessc_helper.js
>-@@ -36,7 +36,6 @@ var lessc_helper = {
>-         sys.puts("  --verbose               Be verbose.");
>-         sys.puts("  -v, --version           Print version number and exit.");
>-         sys.puts("  -x, --compress          Compress output by removing some whitespaces.");
>--        sys.puts("  --yui-compress          Compress output using cssmin.js.");
>-         sys.puts("  -O0, -O1, -O2           Set the parser's optimization level. The lower");
>-         sys.puts("                          the number, the less nodes it will create in the");
>-         sys.puts("                          tree. This could matter for debugging, or if you");
>-diff --git a/lib/less/parser.js b/lib/less/parser.js
>-index 6bb90cd60a841d3a1657ce3c84fa9f00d07e3be5..a71a2f52b521ee343a9bb5c7239d265cbc05e5f7 100644
>---- a/lib/less/parser.js
>-+++ b/lib/less/parser.js
>-@@ -418,9 +418,7 @@ less.Parser = function Parser(env) {
>-                         else                                  throw new(LessError)(importError, env);
>-                     }
>- 
>--                    if (options.yuicompress && less.mode === 'node') {
>--                        return require('./cssmin').compressor.cssmin(css);
>--                    } else if (options.compress) {
>-+                    if (options.compress) {
>-                         return css.replace(/(\s)+/g, "$1");
>-                     } else {
>-                         return css;
>--- 
>-1.8.0.1
>-
>diff --git a/0002-Fix-version-number.patch b/0002-Fix-version-number.patch
>deleted file mode 100644
>index cba8d1e..0000000
>--- a/0002-Fix-version-number.patch
>+++ /dev/null
>@@ -1,25 +0,0 @@
>-From 682c7f601c89ed0a8ee274730da33d961a50e16d Mon Sep 17 00:00:00 2001
>-From: Stephen Gallagher <sgallagh@redhat.com>
>-Date: Wed, 19 Dec 2012 09:04:38 -0500
>-Subject: [PATCH 2/4] Fix version number
>-
>----
>- lib/less/index.js | 2 +-
>- 1 file changed, 1 insertion(+), 1 deletion(-)
>-
>-diff --git a/lib/less/index.js b/lib/less/index.js
>-index 7ffbbcf64bed40e0d5012c4da35e3183f971082d..295c9d59f11cf7586d46774c5a02441d42d75b25 100644
>---- a/lib/less/index.js
>-+++ b/lib/less/index.js
>-@@ -3,7 +3,7 @@ var path = require('path'),
>-     fs = require('fs');
>- 
>- var less = {
>--    version: [1, 3, 0],
>-+    version: [1, 3, 1],
>-     Parser: require('./parser').Parser,
>-     importer: require('./parser').importer,
>-     tree: require('./tree'),
>--- 
>-1.8.0.1
>-
>diff --git a/0003-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch b/0003-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch
>deleted file mode 100644
>index ce60ebe..0000000
>--- a/0003-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch
>+++ /dev/null
>@@ -1,43 +0,0 @@
>-From ea94b55d0b71b79d80ce80cc964983f20e7054d1 Mon Sep 17 00:00:00 2001
>-From: Stephen Gallagher <sgallagh@redhat.com>
>-Date: Wed, 19 Dec 2012 09:06:24 -0500
>-Subject: [PATCH 3/4] substitute paths to use /usr/share instead of /usr/lib
>-
>----
>- bin/lessc | 6 +++---
>- 1 file changed, 3 insertions(+), 3 deletions(-)
>-
>-diff --git a/bin/lessc b/bin/lessc
>-index af96ea237b3fb82284b38babf6562b7c5849f668..231298719ed0b9f745281f71e4cf374aec13c04c 100755
>---- a/bin/lessc
>-+++ b/bin/lessc
>-@@ -5,7 +5,7 @@ var path = require('path'),
>-     sys = require('util'),
>-     os = require('os');
>- 
>--var less = require('../lib/less');
>-+var less = require('../share/less');
>- var args = process.argv.slice(1);
>- var options = {
>-     compress: false,
>-@@ -51,7 +51,7 @@ args = args.filter(function (arg) {
>-             break;
>-         case 'h':
>-         case 'help':
>--            require('../lib/less/lessc_helper').printUsage();
>-+            require('../share/less/lessc_helper').printUsage();
>-             continueProcessing = false;
>-         case 'x':
>-         case 'compress':
>-@@ -99,7 +99,7 @@ if (output) {
>- if (! input) {
>-     sys.puts("lessc: no input files");
>-     sys.puts("");
>--    require('../lib/less/lessc_helper').printUsage();
>-+    require('../share/less/lessc_helper').printUsage();
>-     currentErrorcode = 1;
>-     return;
>- }
>--- 
>-1.8.0.1
>-
>diff --git a/0004-Remove-pre-builds.patch b/0004-Remove-pre-builds.patch
>deleted file mode 100644
>index d810ca9..0000000
>--- a/0004-Remove-pre-builds.patch
>+++ /dev/null
>@@ -1,45901 +0,0 @@
>-From 4318e8a28b00689551c9cb23eddaebe6b47ac20a Mon Sep 17 00:00:00 2001
>-From: Stephen Gallagher <sgallagh@redhat.com>
>-Date: Wed, 19 Dec 2012 09:07:00 -0500
>-Subject: [PATCH 4/4] Remove pre-builds
>-
>----
>- dist/less-1.1.0.js       | 2695 -------------------------------
>- dist/less-1.1.0.min.js   |   16 -
>- dist/less-1.1.1.js       | 2710 -------------------------------
>- dist/less-1.1.1.min.js   |   16 -
>- dist/less-1.1.2.js       | 2712 -------------------------------
>- dist/less-1.1.2.min.js   |   16 -
>- dist/less-1.1.3.js       | 2721 -------------------------------
>- dist/less-1.1.3.min.js   |   16 -
>- dist/less-1.1.4.js       | 2769 --------------------------------
>- dist/less-1.1.4.min.js   |   16 -
>- dist/less-1.1.5.js       | 2805 --------------------------------
>- dist/less-1.1.5.min.js   |    9 -
>- dist/less-1.1.6.js       | 3004 ----------------------------------
>- dist/less-1.1.6.min.js   |    9 -
>- dist/less-1.2.0.js       | 3293 -------------------------------------
>- dist/less-1.2.0.min.js   |    9 -
>- dist/less-1.2.1.js       | 3318 --------------------------------------
>- dist/less-1.2.1.min.js   |    9 -
>- dist/less-1.2.2.js       | 3337 --------------------------------------
>- dist/less-1.2.2.min.js   |    9 -
>- dist/less-1.3.0.js       | 3478 ----------------------------------------
>- dist/less-1.3.0.min.js   |    9 -
>- dist/less-1.3.1.js       | 4011 ----------------------------------------------
>- dist/less-1.3.1.min.js   |    9 -
>- dist/less-rhino-1.1.3.js | 2460 ----------------------------
>- dist/less-rhino-1.1.5.js | 2481 ----------------------------
>- dist/less-rhino-1.3.1.js | 3725 ------------------------------------------
>- 27 files changed, 45662 deletions(-)
>- delete mode 100644 dist/less-1.1.0.js
>- delete mode 100644 dist/less-1.1.0.min.js
>- delete mode 100644 dist/less-1.1.1.js
>- delete mode 100644 dist/less-1.1.1.min.js
>- delete mode 100644 dist/less-1.1.2.js
>- delete mode 100644 dist/less-1.1.2.min.js
>- delete mode 100644 dist/less-1.1.3.js
>- delete mode 100644 dist/less-1.1.3.min.js
>- delete mode 100644 dist/less-1.1.4.js
>- delete mode 100644 dist/less-1.1.4.min.js
>- delete mode 100644 dist/less-1.1.5.js
>- delete mode 100644 dist/less-1.1.5.min.js
>- delete mode 100644 dist/less-1.1.6.js
>- delete mode 100644 dist/less-1.1.6.min.js
>- delete mode 100644 dist/less-1.2.0.js
>- delete mode 100644 dist/less-1.2.0.min.js
>- delete mode 100644 dist/less-1.2.1.js
>- delete mode 100644 dist/less-1.2.1.min.js
>- delete mode 100644 dist/less-1.2.2.js
>- delete mode 100644 dist/less-1.2.2.min.js
>- delete mode 100644 dist/less-1.3.0.js
>- delete mode 100644 dist/less-1.3.0.min.js
>- delete mode 100644 dist/less-1.3.1.js
>- delete mode 100644 dist/less-1.3.1.min.js
>- delete mode 100644 dist/less-rhino-1.1.3.js
>- delete mode 100644 dist/less-rhino-1.1.5.js
>- delete mode 100644 dist/less-rhino-1.3.1.js
>-
>-diff --git a/dist/less-1.1.0.js b/dist/less-1.1.0.js
>-deleted file mode 100644
>-index 487c06acd2913ba4111d52ea8f1a7246717ae950..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.0.js
>-+++ /dev/null
>-@@ -1,2695 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.0
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof(window) === 'undefined') {
>--    less = exports,
>--    tree = require('less/tree');
>--} else {
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                callback(root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            root = new(tree.Ruleset)([], $(this.parsers.primary));
>--            root.root = true;
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        lines = input.split('\n');
>--                        line = getLine(e.index);
>--
>--                        for (var n = e.index, column = -1;
>--                                 n >= 0 && input.charAt(n) !== '\n';
>--                                 n--) { column++ }
>--
>--                        throw {
>--                            type: e.type,
>--                            message: e.message,
>--                            filename: env.filename,
>--                            index: e.index,
>--                            line: typeof(line) === 'number' ? line + 1 : null,
>--                            callLine: e.call && (getLine(e.call) + 1),
>--                            callExtract: lines[getLine(e.call)],
>--                            stack: e.stack,
>--                            column: column,
>--                            extract: [
>--                                lines[line - 1],
>--                                lines[line],
>--                                lines[line + 1]
>--                            ]
>--                        };
>--                    }
>--                    if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--
>--                    function getLine(index) {
>--                        return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    name: "ParseError",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--                    if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args;
>--
>--                    if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--                    if (! $(')')) throw new(Error)("missing closing ) for url()");
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i);
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value;
>--
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    if (value = $(this.expression)) {
>--                                        params.push({ name: param.name, value: value });
>--                                    } else {
>--                                        throw new(Error)("Expected value");
>--                                    }
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset);
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    if (! $(')')) throw new(Error)("missing closing ) for alpha()");
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:[.#]?|:*)(?:[\w-]|\$?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (e) { return new(tree.Element)(c, e) }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '&' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) {
>--                    i += match[0].length - 1;
>--                    selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])];
>--                } else {
>--                    while (s = $(this.selector)) {
>--                        selectors.push(s);
>--                        $(this.comment);
>--                        if (! $(',')) { break }
>--                        $(this.comment);
>--                    }
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url)) &&
>--                    $(';')) {
>--                    return new(tree.Import)(path, imports);
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import'])) {
>--                    return value;
>--                } else if (name = $(/^@media|@page|@-[-a-z]+/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while ((op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (typeof(window) !== 'undefined') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math.round(number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math.round(n);
>--        } else {
>--	    throw {
>--                error: "RuntimeError",
>--                message: "math functions take numbers as parameters"
>--            };
>--        }
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args) {
>--    this.name = name;
>--    this.args = args;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            return tree.functions[this.name].apply(tree.functions, args);
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else if (rgb.length == 8) {
>--        this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0;
>--        this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    }
>--};
>--
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--    this.value = value.trim();
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + this.value;
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else {
>--            return this.value[0].eval(env);
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports) {
>--    var that = this;
>--
>--    this._path = path;
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (root) {
>--            if (! root) {
>--                throw new(Error)("Error parsing " + that.path);
>--            }
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function () {
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset;
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.evaluated;
>--        } else {
>--            return JSON.stringify(this.evaluated);
>--        }
>--    },
>--    eval: function (env) {
>--        var result,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return new(tree.Variable)('@' + name).eval(env).value;
>--        });
>--
>--        expression = new(Function)('return (' + expression + ')');
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            this.evaluated = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        return this;
>--    }
>--};
>--
>--})(require('less/tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(this.arguments, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    eval: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), context, _arguments = [];
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments)));
>--
>--        return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        this.value = this.value.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return new(tree.Variable)('@' + name).eval(env).value;
>--        }).replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, this.index, true).eval(env).toCSS();
>--        });
>--        return this;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + ";";
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > 1) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                for (var s = 0; s < this.selectors.length; s++) {
>--                    for (var c = 0; c < context.length; c++) {
>--                        paths.push(context[c].concat([this.selectors[s]]));
>--                    }
>--                }
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    }
>--};
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    if (this.elements[0].value === other.elements[0].value) {
>--        return true;
>--    } else {
>--        return false;
>--    }
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--require('less/tree').find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (root, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (root, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                styles[i].type      = 'text/css';
>--                styles[i].innerHTML = tree.toCSS();
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--
>--    var template = ['<ul>',
>--                        '<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',
>--                        '<li><label>[0]</label><pre>{current}</pre></li>',
>--                        '<li><label>[1]</label><pre class="ctx">{2}</pre></li>',
>--                    '</ul>'].join('\n');
>--
>--    var elem = document.createElement('div'), timer, content;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p><a href="' + href   + '">' + href + "</a> ";
>--
>--    if (e.extract) {
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--            template.replace(/\[(-?\d)\]/g, function (_, i) {
>--                return (parseInt(e.line) + parseInt(i)) || '';
>--            }).replace(/\{(\d)\}/g, function (_, i) {
>--                return e.extract[parseInt(i)] || '';
>--            }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '<span class="error">' +
>--                                      e.extract[1].slice(e.column)    + '</span>');
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #ee4444;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.ctx {',
>--            'color: #dd4444;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.1.0.min.js b/dist/less-1.1.0.min.js
>-deleted file mode 100644
>-index ede454e103cc2b123a5a46dffdc8f3e38557efc7..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.0.min.js
>-+++ /dev/null
>-@@ -1,16 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.0
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--//
>--// LESS - Leaner CSS v1.1.0
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
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>--protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l<j.length;l++)(j[l].rel==="stylesheet/less"||j[l].rel.match(/stylesheet/)&&j[l].type.match(k))&&d.sheets.push(j[l]);d.refresh=function(a){var b,c;b=c=new Date,n(function(a,d,e){e.local?u("loading "+d.href+" from cache."):(u("parsed "+d.href+" successfully."),q(a.toCSS(),d,e.lastModified)),u("css for "+d.href+" generated in "+(new Date-c)+"ms"),e.remaining===0&&u("css generated in "+(new Date-b)+"ms"),c=new Date},a),m()},d.refreshStyles=m,d.refresh(d.env==="development")})(window)
>-\ No newline at end of file
>-diff --git a/dist/less-1.1.1.js b/dist/less-1.1.1.js
>-deleted file mode 100644
>-index 3261620fb54c3f7e3f765b7f1d4c17d860e1410a..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.1.js
>-+++ /dev/null
>-@@ -1,2710 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.1
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof(window) === 'undefined') {
>--    less = exports,
>--    tree = require('less/tree');
>--} else {
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                callback(root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            root = new(tree.Ruleset)([], $(this.parsers.primary));
>--            root.root = true;
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        lines = input.split('\n');
>--                        line = getLine(e.index);
>--
>--                        for (var n = e.index, column = -1;
>--                                 n >= 0 && input.charAt(n) !== '\n';
>--                                 n--) { column++ }
>--
>--                        throw {
>--                            type: e.type,
>--                            message: e.message,
>--                            filename: env.filename,
>--                            index: e.index,
>--                            line: typeof(line) === 'number' ? line + 1 : null,
>--                            callLine: e.call && (getLine(e.call) + 1),
>--                            callExtract: lines[getLine(e.call)],
>--                            stack: e.stack,
>--                            column: column,
>--                            extract: [
>--                                lines[line - 1],
>--                                lines[line],
>--                                lines[line + 1]
>--                            ]
>--                        };
>--                    }
>--                    if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--
>--                    function getLine(index) {
>--                        return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    name: "ParseError",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--                    if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args;
>--
>--                    if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--                    if (! $(')')) throw new(Error)("missing closing ) for url()");
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i);
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value;
>--
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    if (value = $(this.expression)) {
>--                                        params.push({ name: param.name, value: value });
>--                                    } else {
>--                                        throw new(Error)("Expected value");
>--                                    }
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset);
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    if (! $(')')) throw new(Error)("missing closing ) for alpha()");
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:[.#]?|:*)(?:[\w-]|\$?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (e) { return new(tree.Element)(c, e) }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '&' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) {
>--                    i += match[0].length - 1;
>--                    selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])];
>--                } else {
>--                    while (s = $(this.selector)) {
>--                        selectors.push(s);
>--                        $(this.comment);
>--                        if (! $(',')) { break }
>--                        $(this.comment);
>--                    }
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url)) &&
>--                    $(';')) {
>--                    return new(tree.Import)(path, imports);
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import'])) {
>--                    return value;
>--                } else if (name = $(/^@media|@page|@-[-a-z]+/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while ((op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (typeof(window) !== 'undefined') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math.round(number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math.round(n);
>--        } else {
>--	    throw {
>--                error: "RuntimeError",
>--                message: "math functions take numbers as parameters"
>--            };
>--        }
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args) {
>--    this.name = name;
>--    this.args = args;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            return tree.functions[this.name].apply(tree.functions, args);
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else if (rgb.length == 8) {
>--        this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0;
>--        this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    }
>--};
>--
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--    this.value = value.trim();
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + this.value;
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports) {
>--    var that = this;
>--
>--    this._path = path;
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (root) {
>--            if (! root) {
>--                throw new(Error)("Error parsing " + that.path);
>--            }
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function () {
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset;
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(this.arguments, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    eval: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), context, _arguments = [];
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        this.value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return new(tree.Variable)('@' + name, that.index).eval(env).value;
>--        });
>--        return this;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + ";";
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > 1) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                for (var s = 0; s < this.selectors.length; s++) {
>--                    for (var c = 0; c < context.length; c++) {
>--                        paths.push(context[c].concat([this.selectors[s]]));
>--                    }
>--                }
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    }
>--};
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    if (this.elements[0].value === other.elements[0].value) {
>--        return true;
>--    } else {
>--        return false;
>--    }
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--require('less/tree').find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--require('less/tree').jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (root, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (root, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                styles[i].type      = 'text/css';
>--                styles[i].innerHTML = tree.toCSS();
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--
>--    var template = ['<ul>',
>--                        '<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',
>--                        '<li><label>[0]</label><pre>{current}</pre></li>',
>--                        '<li><label>[1]</label><pre class="ctx">{2}</pre></li>',
>--                    '</ul>'].join('\n');
>--
>--    var elem = document.createElement('div'), timer, content;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p><a href="' + href   + '">' + href + "</a> ";
>--
>--    if (e.extract) {
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--            template.replace(/\[(-?\d)\]/g, function (_, i) {
>--                return (parseInt(e.line) + parseInt(i)) || '';
>--            }).replace(/\{(\d)\}/g, function (_, i) {
>--                return e.extract[parseInt(i)] || '';
>--            }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '<span class="error">' +
>--                                      e.extract[1].slice(e.column)    + '</span>');
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #ee4444;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.ctx {',
>--            'color: #dd4444;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.1.1.min.js b/dist/less-1.1.1.min.js
>-deleted file mode 100644
>-index c204123ec74a6b0b9e5119b4591528e140402157..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.1.min.js
>-+++ /dev/null
>-@@ -1,16 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.1
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--//
>--// LESS - Leaner CSS v1.1.1
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function(a,b){function v(a,b){var c="less-error-message:"+p(b),e=["<ul>",'<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',"<li><label>[0]</label><pre>{current}</pre></li>",'<li><label>[1]</label><pre class="ctx">{2}</pre></li>',"</ul>"].join("\n"),f=document.createElement("div"),g,h;f.id=c,f.className="less-error-message",h="<h3>"+(a.message||"There is an error in your .less file")+"</h3>"+'<p><a href="'+b+'">'+b+"</a> ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":</p>"+e.replace(/\[(-?\d)\]/g,function(b,c){return parseInt(a.line)+parseInt(c)||""}).replace(/\{(\d)\}/g,function(b,c){return a.extract[parseInt(c)]||""}).replace(/\{current\}/,a.extract[1].slice(0,a.column)+'<span class="error">'+a.extract[1].slice(a.column)+"</span>")),f.innerHTML=h,q([".less-error-message ul, .less-error-message li {","list-style-type: none;","margin-right: 15px;","padding: 4px 0;","margin: 0;","}",".less-error-message label {","font-size: 12px;","margin-right: 15px;","padding: 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a.Anonymous(c)}}}(c("less/tree")),function(a){a.Keyword=function(a){this.value=a},a.Keyword.prototype={eval:function(){return this},toCSS:function(){return this.value}}}(c("less/tree")),function(a){a.mixin={},a.mixin.Call=function(b,c,d){this.selector=new a.Selector(b),this.arguments=c,this.index=d},a.mixin.Call.prototype={eval:function(a){var b,c=[],d=!1;for(var e=0;e<a.frames.length;e++)if((b=a.frames[e].find(this.selector)).length>0){for(var f=0;f<b.length;f++)if(b[f].match(this.arguments,a))try{Array.prototype.push.apply(c,b[f].eval(a,this.arguments).rules),d=!0}catch(g){throw{message:g.message,index:g.index,stack:g.stack,call:this.index}}if(d)return c;throw{message:"No matching definition was found for `"+this.selector.toCSS().trim()+"("+this.arguments.map(function(a){return a.toCSS()}).join(", ")+")`",index:this.index}}throw{message:this.selector.toCSS().trim()+" is undefined",index:this.index}}},a.mixin.Definition=function(b,c,d){this.name=b,this.selectors=[new a.Selector([new a.Element(null,b)])],this.params=c,this.arity=c.length,this.rules=d,this._lookups={},this.required=c.reduce(function(a,b){return!b.name||b.name&&!b.value?a+1:a},0),this.parent=a.Ruleset.prototype,this.frames=[]},a.mixin.Definition.prototype={toCSS:function(){return""},variable:function(a){return this.parent.variable.call(this,a)},variables:function(){return this.parent.variables.call(this)},find:function(){return this.parent.find.apply(this,arguments)},rulesets:function(){return this.parent.rulesets.apply(this)},eval:function(b,c){var d=new a.Ruleset(null,[]),e,f=[];for(var g=0,h;g<this.params.length;g++)if(this.params[g].name)if(h=c&&c[g]||this.params[g].value)d.rules.unshift(new a.Rule(this.params[g].name,h.eval(b)));else throw{message:"wrong number of arguments for "+this.name+" ("+c.length+" for "+this.arity+")"};for(var g=0;g<Math.max(this.params.length,c&&c.length);g++)f.push(c[g]||this.params[g].value);d.rules.unshift(new a.Rule("@arguments",(new 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>--)),c("less/tree").find=function(a,b){for(var c=0,d;c<a.length;c++)if(d=b.call(a,a[c]))return d;return null},c("less/tree").jsify=function(a){return Array.isArray(a.value)&&a.value.length>1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var g=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l<j.length;l++)(j[l].rel==="stylesheet/less"||j[l].rel.match(/stylesheet/)&&j[l].type.match(k))&&d.sheets.push(j[l]);d.refresh=function(a){var b,c;b=c=new Date,n(function(a,d,e){e.local?u("loading "+d.href+" from cache."):(u("parsed "+d.href+" successfully."),q(a.toCSS(),d,e.lastModified)),u("css for "+d.href+" generated in "+(new Date-c)+"ms"),e.remaining===0&&u("css generated in "+(new Date-b)+"ms"),c=new Date},a),m()},d.refreshStyles=m,d.refresh(d.env==="development")})(window)
>-\ No newline at end of file
>-diff --git a/dist/less-1.1.2.js b/dist/less-1.1.2.js
>-deleted file mode 100644
>-index 32a5e053c05ad19a94e71fd6390d8117597cbdd4..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.2.js
>-+++ /dev/null
>-@@ -1,2712 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.2
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof(window) === 'undefined') {
>--    less = exports,
>--    tree = require('less/tree');
>--} else {
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                callback(root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            root = new(tree.Ruleset)([], $(this.parsers.primary));
>--            root.root = true;
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        lines = input.split('\n');
>--                        line = getLine(e.index);
>--
>--                        for (var n = e.index, column = -1;
>--                                 n >= 0 && input.charAt(n) !== '\n';
>--                                 n--) { column++ }
>--
>--                        throw {
>--                            type: e.type,
>--                            message: e.message,
>--                            filename: env.filename,
>--                            index: e.index,
>--                            line: typeof(line) === 'number' ? line + 1 : null,
>--                            callLine: e.call && (getLine(e.call) + 1),
>--                            callExtract: lines[getLine(e.call)],
>--                            stack: e.stack,
>--                            column: column,
>--                            extract: [
>--                                lines[line - 1],
>--                                lines[line],
>--                                lines[line + 1]
>--                            ]
>--                        };
>--                    }
>--                    if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--
>--                    function getLine(index) {
>--                        return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    name: "ParseError",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--                    if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args;
>--
>--                    if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--                    if (! $(')')) throw new(Error)("missing closing ) for url()");
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i);
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value;
>--
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    if (value = $(this.expression)) {
>--                                        params.push({ name: param.name, value: value });
>--                                    } else {
>--                                        throw new(Error)("Expected value");
>--                                    }
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset);
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    if (! $(')')) throw new(Error)("missing closing ) for alpha()");
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:[.#]?|:*)(?:[\w-]|\$?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (e) { return new(tree.Element)(c, e) }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '&' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) {
>--                    i += match[0].length - 1;
>--                    selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])];
>--                } else {
>--                    while (s = $(this.selector)) {
>--                        selectors.push(s);
>--                        $(this.comment);
>--                        if (! $(',')) { break }
>--                        $(this.comment);
>--                    }
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url)) &&
>--                    $(';')) {
>--                    return new(tree.Import)(path, imports);
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import'])) {
>--                    return value;
>--                } else if (name = $(/^@media|@page|@-[-a-z]+/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while ((op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (typeof(window) !== 'undefined') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math.round(number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math.round(n);
>--        } else {
>--	    throw {
>--                error: "RuntimeError",
>--                message: "math functions take numbers as parameters"
>--            };
>--        }
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args) {
>--    this.name = name;
>--    this.args = args;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            return tree.functions[this.name].apply(tree.functions, args);
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else if (rgb.length == 8) {
>--        this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0;
>--        this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    }
>--};
>--
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--    this.value = value.trim();
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + this.value;
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports) {
>--    var that = this;
>--
>--    this._path = path;
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (root) {
>--            if (! root) {
>--                throw new(Error)("Error parsing " + that.path);
>--            }
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function () {
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset;
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    eval: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), context, _arguments = [];
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return v.value || v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + ";";
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > 1) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                for (var s = 0; s < this.selectors.length; s++) {
>--                    for (var c = 0; c < context.length; c++) {
>--                        paths.push(context[c].concat([this.selectors[s]]));
>--                    }
>--                }
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    }
>--};
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    if (this.elements[0].value === other.elements[0].value) {
>--        return true;
>--    } else {
>--        return false;
>--    }
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--require('less/tree').find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--require('less/tree').jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (root, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (root, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                styles[i].type      = 'text/css';
>--                styles[i].innerHTML = tree.toCSS();
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--
>--    var template = ['<ul>',
>--                        '<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',
>--                        '<li><label>[0]</label><pre>{current}</pre></li>',
>--                        '<li><label>[1]</label><pre class="ctx">{2}</pre></li>',
>--                    '</ul>'].join('\n');
>--
>--    var elem = document.createElement('div'), timer, content;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p><a href="' + href   + '">' + href + "</a> ";
>--
>--    if (e.extract) {
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--            template.replace(/\[(-?\d)\]/g, function (_, i) {
>--                return (parseInt(e.line) + parseInt(i)) || '';
>--            }).replace(/\{(\d)\}/g, function (_, i) {
>--                return e.extract[parseInt(i)] || '';
>--            }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '<span class="error">' +
>--                                      e.extract[1].slice(e.column)    + '</span>');
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #ee4444;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.ctx {',
>--            'color: #dd4444;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.1.2.min.js b/dist/less-1.1.2.min.js
>-deleted file mode 100644
>-index 9b2fc8a43b49f4ca70aa04254807640d97f39fb5..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.2.min.js
>-+++ /dev/null
>-@@ -1,16 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.2
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--//
>--// LESS - Leaner CSS v1.1.2
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function(a,b){function v(a,b){var c="less-error-message:"+p(b),e=["<ul>",'<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',"<li><label>[0]</label><pre>{current}</pre></li>",'<li><label>[1]</label><pre class="ctx">{2}</pre></li>',"</ul>"].join("\n"),f=document.createElement("div"),g,h;f.id=c,f.className="less-error-message",h="<h3>"+(a.message||"There is an error in your .less file")+"</h3>"+'<p><a href="'+b+'">'+b+"</a> ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":</p>"+e.replace(/\[(-?\d)\]/g,function(b,c){return parseInt(a.line)+parseInt(c)||""}).replace(/\{(\d)\}/g,function(b,c){return a.extract[parseInt(c)]||""}).replace(/\{current\}/,a.extract[1].slice(0,a.column)+'<span class="error">'+a.extract[1].slice(a.column)+"</span>")),f.innerHTML=h,q([".less-error-message ul, .less-error-message li {","list-style-type: none;","margin-right: 15px;","padding: 4px 0;","margin: 0;","}",".less-error-message label {","font-size: 12px;","margin-right: 15px;","padding: 4px 0;","color: #cc7777;","}",".less-error-message pre {","color: #ee4444;","padding: 4px 0;","margin: 0;","display: inline-block;","}",".less-error-message pre.ctx {","color: #dd4444;","}",".less-error-message h3 {","font-size: 20px;","font-weight: bold;","padding: 15px 0 5px 0;","margin: 0;","}",".less-error-message a {","color: #10a","}",".less-error-message .error {","color: red;","font-weight: bold;","padding-bottom: 2px;","border-bottom: 1px dashed red;","}"].join("\n"),{title:"error-message"}),f.style.cssText=["font-family: Arial, sans-serif","border: 1px solid #e00","background-color: #eee","border-radius: 5px","-webkit-border-radius: 5px","-moz-border-radius: 5px","color: #e00","padding: 15px","margin-bottom: 15px"].join(";"),d.env=="development"&&(g=setInterval(function(){document.body&&(document.getElementById(c)?document.body.replaceChild(f,document.getElementById(c)):document.body.insertBefore(f,document.body.firstChild),clearInterval(g))},10))}function 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>-\ No newline at end of file
>-diff --git a/dist/less-1.1.3.js b/dist/less-1.1.3.js
>-deleted file mode 100644
>-index cc80101d9e5b774b695cfb628a198617a0ebe5f8..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.3.js
>-+++ /dev/null
>-@@ -1,2721 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.3
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof(window) === 'undefined') {
>--    less = exports,
>--    tree = require('less/tree');
>--} else {
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                callback(root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            root = new(tree.Ruleset)([], $(this.parsers.primary));
>--            root.root = true;
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        lines = input.split('\n');
>--                        line = getLine(e.index);
>--
>--                        for (var n = e.index, column = -1;
>--                                 n >= 0 && input.charAt(n) !== '\n';
>--                                 n--) { column++ }
>--
>--                        throw {
>--                            type: e.type,
>--                            message: e.message,
>--                            filename: env.filename,
>--                            index: e.index,
>--                            line: typeof(line) === 'number' ? line + 1 : null,
>--                            callLine: e.call && (getLine(e.call) + 1),
>--                            callExtract: lines[getLine(e.call)],
>--                            stack: e.stack,
>--                            column: column,
>--                            extract: [
>--                                lines[line - 1],
>--                                lines[line],
>--                                lines[line + 1]
>--                            ]
>--                        };
>--                    }
>--                    if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--
>--                    function getLine(index) {
>--                        return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    name: "ParseError",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--                    if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--                    if (! $(')')) throw new(Error)("missing closing ) for url()");
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i);
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value;
>--
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    if (value = $(this.expression)) {
>--                                        params.push({ name: param.name, value: value });
>--                                    } else {
>--                                        throw new(Error)("Expected value");
>--                                    }
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset);
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^$opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    if (! $(')')) throw new(Error)("missing closing ) for alpha()");
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (e) { return new(tree.Element)(c, e) }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '&' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) {
>--                    i += match[0].length - 1;
>--                    selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])];
>--                } else {
>--                    while (s = $(this.selector)) {
>--                        selectors.push(s);
>--                        $(this.comment);
>--                        if (! $(',')) { break }
>--                        $(this.comment);
>--                    }
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url)) &&
>--                    $(';')) {
>--                    return new(tree.Import)(path, imports);
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import'])) {
>--                    return value;
>--                } else if (name = $(/^@media|@page|@-[-a-z]+/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while ((op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (typeof(window) !== 'undefined') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math.round(number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math.round(n);
>--        } else {
>--	    throw {
>--                error: "RuntimeError",
>--                message: "math functions take numbers as parameters"
>--            };
>--        }
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { message: "error evaluating function `" + this.name + "`",
>--                        index: this.index };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else if (rgb.length == 8) {
>--        this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0;
>--        this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    }
>--};
>--
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--    this.value = value.trim();
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + this.value;
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports) {
>--    var that = this;
>--
>--    this._path = path;
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (root) {
>--            if (! root) {
>--                throw new(Error)("Error parsing " + that.path);
>--            }
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function () {
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset;
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    eval: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), context, _arguments = [];
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return v.value || v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + ";";
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > 1) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                for (var s = 0; s < this.selectors.length; s++) {
>--                    for (var c = 0; c < context.length; c++) {
>--                        paths.push(context[c].concat([this.selectors[s]]));
>--                    }
>--                }
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    }
>--};
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    if (this.elements[0].value === other.elements[0].value) {
>--        return true;
>--    } else {
>--        return false;
>--    }
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--require('less/tree').find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--require('less/tree').jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (root, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (root, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                styles[i].type      = 'text/css';
>--                styles[i].innerHTML = tree.toCSS();
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--
>--    var template = ['<ul>',
>--                        '<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',
>--                        '<li><label>[0]</label><pre>{current}</pre></li>',
>--                        '<li><label>[1]</label><pre class="ctx">{2}</pre></li>',
>--                    '</ul>'].join('\n');
>--
>--    var elem = document.createElement('div'), timer, content;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p><a href="' + href   + '">' + href + "</a> ";
>--
>--    if (e.extract) {
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--            template.replace(/\[(-?\d)\]/g, function (_, i) {
>--                return (parseInt(e.line) + parseInt(i)) || '';
>--            }).replace(/\{(\d)\}/g, function (_, i) {
>--                return e.extract[parseInt(i)] || '';
>--            }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '<span class="error">' +
>--                                      e.extract[1].slice(e.column)    + '</span>');
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #ee4444;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.ctx {',
>--            'color: #dd4444;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
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>-deleted file mode 100644
>-index 6e4d5cff5465586717cfcc8d4a1d9dc5cdbda9dd..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.3.min.js
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>--// http://lesscss.org
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>--// Licensed under the Apache 2.0 License.
>--//
>--//
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>--// http://lesscss.org
>--// 
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>--.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("less/tree")),c("less/tree").find=function(a,b){for(var c=0,d;c<a.length;c++)if(d=b.call(a,a[c]))return d;return null},c("less/tree").jsify=function(a){return Array.isArray(a.value)&&a.value.length>1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var g=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l<j.length;l++)(j[l].rel==="stylesheet/less"||j[l].rel.match(/stylesheet/)&&j[l].type.match(k))&&d.sheets.push(j[l]);d.refresh=function(a){var b,c;b=c=new Date,n(function(a,d,e){e.local?u("loading "+d.href+" from cache."):(u("parsed "+d.href+" successfully."),q(a.toCSS(),d,e.lastModified)),u("css for "+d.href+" generated in "+(new Date-c)+"ms"),e.remaining===0&&u("css generated in "+(new Date-b)+"ms"),c=new Date},a),m()},d.refreshStyles=m,d.refresh(d.env==="development")})(window)
>-\ No newline at end of file
>-diff --git a/dist/less-1.1.4.js b/dist/less-1.1.4.js
>-deleted file mode 100644
>-index cb27c431255456f32181430eadf25d54edef3913..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.4.js
>-+++ /dev/null
>-@@ -1,2769 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.4
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof(window) === 'undefined') {
>--    less = exports,
>--    tree = require('less/tree');
>--} else {
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                callback(root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            root = new(tree.Ruleset)([], $(this.parsers.primary));
>--            root.root = true;
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        lines = input.split('\n');
>--                        line = getLine(e.index);
>--
>--                        for (var n = e.index, column = -1;
>--                                 n >= 0 && input.charAt(n) !== '\n';
>--                                 n--) { column++ }
>--
>--                        throw {
>--                            type: e.type,
>--                            message: e.message,
>--                            filename: env.filename,
>--                            index: e.index,
>--                            line: typeof(line) === 'number' ? line + 1 : null,
>--                            callLine: e.call && (getLine(e.call) + 1),
>--                            callExtract: lines[getLine(e.call)],
>--                            stack: e.stack,
>--                            column: column,
>--                            extract: [
>--                                lines[line - 1],
>--                                lines[line],
>--                                lines[line + 1]
>--                            ]
>--                        };
>--                    }
>--                    if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--
>--                    function getLine(index) {
>--                        return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    name: "ParseError",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--                    if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--                    if (! $(')')) throw new(Error)("missing closing ) for url()");
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i);
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value;
>--
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    if (value = $(this.expression)) {
>--                                        params.push({ name: param.name, value: value });
>--                                    } else {
>--                                        throw new(Error)("Expected value");
>--                                    }
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset);
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^$opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    if (! $(')')) throw new(Error)("missing closing ) for alpha()");
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+$/) || $(/^(?:\d*\.)?\d+%/);
>--
>--                if (e) { return new(tree.Element)(c, e) }
>--
>--                if (c.value && c.value[0] === '&') {
>--                  return new(tree.Element)(c, null);
>--                }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === '&') {
>--                    match = '&';
>--                    i++;
>--                    if(input.charAt(i) === ' ') {
>--                        match = '& ';
>--                    }
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(match);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                if (match = /^([.#:% \w-]+)[\s\n]*\{/.exec(chunks[j])) {
>--                    i += match[0].length - 1;
>--                    selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])];
>--                } else {
>--                    while (s = $(this.selector)) {
>--                        selectors.push(s);
>--                        $(this.comment);
>--                        if (! $(',')) { break }
>--                        $(this.comment);
>--                    }
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url)) &&
>--                    $(';')) {
>--                    return new(tree.Import)(path, imports);
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import'])) {
>--                    return value;
>--                } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-)?keyframes/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while ((op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (typeof(window) !== 'undefined') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math.round(number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math.round(n);
>--        } else {
>--	    throw {
>--                error: "RuntimeError",
>--                message: "math functions take numbers as parameters"
>--            };
>--        }
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { message: "error evaluating function `" + this.name + "`",
>--                        index: this.index };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else if (rgb.length == 8) {
>--        this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0;
>--        this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    }
>--};
>--
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--    this.value = value ? value.trim() : "";
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + this.value;
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else if (value === '& ') {
>--        this.value = '& ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        '& ' : ' ',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports) {
>--    var that = this;
>--
>--    this._path = path;
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (root) {
>--            if (! root) {
>--                throw new(Error)("Error parsing " + that.path);
>--            }
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function () {
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset;
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    eval: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), context, _arguments = [];
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return v.value || v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + ";";
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > 1) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                this.joinSelectors( paths, context, this.selectors );
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--        var before = [], after = [], beforeElements = [],
>--            afterElements = [], hasParentSelector = false, el;
>--
>--        for (var i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.combinator.value[0] === '&') {
>--                hasParentSelector = true;
>--            }
>--            if (hasParentSelector) afterElements.push(el);
>--            else                   beforeElements.push(el);
>--        }
>--
>--        if (! hasParentSelector) {
>--            afterElements = beforeElements;
>--            beforeElements = [];
>--        }
>--
>--        if (beforeElements.length > 0) {
>--            before.push(new(tree.Selector)(beforeElements));
>--        }
>--
>--        if (afterElements.length > 0) {
>--            after.push(new(tree.Selector)(afterElements));
>--        }
>--
>--        for (var c = 0; c < context.length; c++) {
>--            paths.push(before.concat(context[c]).concat(after));
>--        }
>--    }
>--};
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    if (this.elements[0].value === other.elements[0].value) {
>--        return true;
>--    } else {
>--        return false;
>--    }
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--require('less/tree').find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--require('less/tree').jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (root, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (root, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                styles[i].type      = 'text/css';
>--                styles[i].innerHTML = tree.toCSS();
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--
>--    var template = ['<ul>',
>--                        '<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',
>--                        '<li><label>[0]</label><pre>{current}</pre></li>',
>--                        '<li><label>[1]</label><pre class="ctx">{2}</pre></li>',
>--                    '</ul>'].join('\n');
>--
>--    var elem = document.createElement('div'), timer, content;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p><a href="' + href   + '">' + href + "</a> ";
>--
>--    if (e.extract) {
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--            template.replace(/\[(-?\d)\]/g, function (_, i) {
>--                return (parseInt(e.line) + parseInt(i)) || '';
>--            }).replace(/\{(\d)\}/g, function (_, i) {
>--                return e.extract[parseInt(i)] || '';
>--            }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '<span class="error">' +
>--                                      e.extract[1].slice(e.column)    + '</span>');
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #ee4444;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.ctx {',
>--            'color: #dd4444;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.1.4.min.js b/dist/less-1.1.4.min.js
>-deleted file mode 100644
>-index 182b526fbd896e3e09d6e66569633469d0e74745..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.4.min.js
>-+++ /dev/null
>-@@ -1,16 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.4
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--//
>--// LESS - Leaner CSS v1.1.4
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function(a,b){function u(a,b){var c="less-error-message:"+o(b),e=["<ul>",'<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',"<li><label>[0]</label><pre>{current}</pre></li>",'<li><label>[1]</label><pre class="ctx">{2}</pre></li>',"</ul>"].join("\n"),f=document.createElement("div"),g,h;f.id=c,f.className="less-error-message",h="<h3>"+(a.message||"There is an error in your .less file")+"</h3>"+'<p><a href="'+b+'">'+b+"</a> ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":</p>"+e.replace(/\[(-?\d)\]/g,function(b,c){return parseInt(a.line)+parseInt(c)||""}).replace(/\{(\d)\}/g,function(b,c){return a.extract[parseInt(c)]||""}).replace(/\{current\}/,a.extract[1].slice(0,a.column)+'<span class="error">'+a.extract[1].slice(a.column)+"</span>")),f.innerHTML=h,p([".less-error-message ul, .less-error-message li {","list-style-type: none;","margin-right: 15px;","padding: 4px 0;","margin: 0;","}",".less-error-message label {","font-size: 12px;","margin-right: 15px;","padding: 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>-\ No newline at end of file
>-diff --git a/dist/less-1.1.5.js b/dist/less-1.1.5.js
>-deleted file mode 100644
>-index 0f375d70d717e171d4fb1565d1957195f0b5b7c6..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.5.js
>-+++ /dev/null
>-@@ -1,2805 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.5
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
>--    // Rhino
>--    // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
>--    less = {};
>--    tree = less.tree = {};
>--    less.mode = 'rhino';
>--} else if (typeof(window) === 'undefined') {
>--    // Node.js
>--    less = exports,
>--    tree = require('./tree');
>--    less.mode = 'node';
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--    less.mode = 'browser';
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                callback(root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            root = new(tree.Ruleset)([], $(this.parsers.primary));
>--            root.root = true;
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        lines = input.split('\n');
>--                        line = getLine(e.index);
>--
>--                        for (var n = e.index, column = -1;
>--                                 n >= 0 && input.charAt(n) !== '\n';
>--                                 n--) { column++ }
>--
>--                        throw {
>--                            type: e.type,
>--                            message: e.message,
>--                            filename: env.filename,
>--                            index: e.index,
>--                            line: typeof(line) === 'number' ? line + 1 : null,
>--                            callLine: e.call && (getLine(e.call) + 1),
>--                            callExtract: lines[getLine(e.call)],
>--                            stack: e.stack,
>--                            column: column,
>--                            extract: [
>--                                lines[line - 1],
>--                                lines[line],
>--                                lines[line + 1]
>--                            ]
>--                        };
>--                    }
>--                    if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--
>--                    function getLine(index) {
>--                        return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    name: "ParseError",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--                    if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { return new(tree.Keyword)(k) }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--                    if (! $(')')) throw new(Error)("missing closing ) for url()");
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i);
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e, i));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value;
>--
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    if (value = $(this.expression)) {
>--                                        params.push({ name: param.name, value: value });
>--                                    } else {
>--                                        throw new(Error)("Expected value");
>--                                    }
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset);
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^\(opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    if (! $(')')) throw new(Error)("missing closing ) for alpha()");
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\$?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) ||
>--                    $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (e) { return new(tree.Element)(c, e, i) }
>--
>--                if (c.value && c.value.charAt(0) === '&') {
>--                    return new(tree.Element)(c, null, i);
>--                }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === '&') {
>--                    match = '&';
>--                    i++;
>--                    if(input.charAt(i) === ' ') {
>--                        match = '& ';
>--                    }
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(match);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                while (s = $(this.selector)) {
>--                    selectors.push(s);
>--                    $(this.comment);
>--                    if (! $(',')) { break }
>--                    $(this.comment);
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url)) &&
>--                    $(';')) {
>--                    return new(tree.Import)(path, imports);
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import'])) {
>--                    return value;
>--                } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-)?keyframes/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while ((op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (less.mode === 'browser' || less.mode === 'rhino') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fade: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a = amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math.round(number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math.round(n);
>--        } else {
>--	    throw {
>--                error: "RuntimeError",
>--                message: "math functions take numbers as parameters"
>--            };
>--        }
>--    },
>--    argb: function (color) {
>--        return new(tree.Anonymous)(color.toARGB());
>--
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('./tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { message: "error evaluating function `" + this.name + "`",
>--                        index: this.index };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    },
>--    toARGB: function () {
>--        var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
>--        return '#' + argb.map(function (i) {
>--            i = Math.round(i);
>--            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--            return i.length === 1 ? '0' + i : i;
>--        }).join('');
>--    }
>--};
>--
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value, index) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--    this.value = value ? value.trim() : "";
>--    this.index = index;
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + this.value;
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else if (value === '& ') {
>--        this.value = '& ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        '& ' : ' ',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports) {
>--    var that = this;
>--
>--    this._path = path;
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css(\?.*)?$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (root) {
>--            if (! root) {
>--                throw new(Error)("Error parsing " + that.path);
>--            }
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function () {
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset;
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    eval: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), context, _arguments = [];
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return v.value || v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + ";";
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > rule.selectors[j].elements.length) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                this.joinSelectors( paths, context, this.selectors );
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--        var before = [], after = [], beforeElements = [],
>--            afterElements = [], hasParentSelector = false, el;
>--
>--        for (var i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.combinator.value.charAt(0) === '&') {
>--                hasParentSelector = true;
>--            }
>--            if (hasParentSelector) afterElements.push(el);
>--            else                   beforeElements.push(el);
>--        }
>--
>--        if (! hasParentSelector) {
>--            afterElements = beforeElements;
>--            beforeElements = [];
>--        }
>--
>--        if (beforeElements.length > 0) {
>--            before.push(new(tree.Selector)(beforeElements));
>--        }
>--
>--        if (afterElements.length > 0) {
>--            after.push(new(tree.Selector)(afterElements));
>--        }
>--
>--        for (var c = 0; c < context.length; c++) {
>--            paths.push(before.concat(context[c]).concat(after));
>--        }
>--    }
>--};
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    var len  = this.elements.length,
>--        olen = other.elements.length,
>--        max  = Math.min(len, olen);
>--
>--    if (len < olen) {
>--        return false;
>--    } else {
>--        for (var i = 0; i < max; i++) {
>--            if (this.elements[i].value !== other.elements[i].value) {
>--                return false;
>--            }
>--        }
>--    }
>--    return true;
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (less.mode === 'browser' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--require('./tree').find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--require('./tree').jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (root, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (root, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                var css = tree.toCSS();
>--                var style = styles[i];
>--                try {
>--                    style.innerHTML = css;
>--                } catch (_) {
>--                    style.styleSheets.cssText = css;
>--                }
>--                style.type = 'text/css';
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--
>--    var template = ['<ul>',
>--                        '<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',
>--                        '<li><label>[0]</label><pre>{current}</pre></li>',
>--                        '<li><label>[1]</label><pre class="ctx">{2}</pre></li>',
>--                    '</ul>'].join('\n');
>--
>--    var elem = document.createElement('div'), timer, content;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p><a href="' + href   + '">' + href + "</a> ";
>--
>--    if (e.extract) {
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--            template.replace(/\[(-?\d)\]/g, function (_, i) {
>--                return (parseInt(e.line) + parseInt(i)) || '';
>--            }).replace(/\{(\d)\}/g, function (_, i) {
>--                return e.extract[parseInt(i)] || '';
>--            }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '<span class="error">' +
>--                                      e.extract[1].slice(e.column)    + '</span>');
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #ee4444;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.ctx {',
>--            'color: #dd4444;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.1.5.min.js b/dist/less-1.1.5.min.js
>-deleted file mode 100644
>-index 49949fbea515608d6c286993fb3b4e5d10935d2d..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.5.min.js
>-+++ /dev/null
>-@@ -1,9 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.5
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
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>--;return!0},a.Selector.prototype.toCSS=function(a){return this._css?this._css:this._css=this.elements.map(function(b){return typeof b=="string"?" "+b.trim():b.toCSS(a)}).join("")}}(c("../tree")),function(a){a.URL=function(a,b){a.data?this.attrs=a:(d.mode==="browser"&&!/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(a.value)&&b.length>0&&(a.value=b[0]+(a.value.charAt(0)==="/"?a.value.slice(1):a.value)),this.value=a,this.paths=b)},a.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(b){return this.attrs?this:new a.URL(this.value.eval(b),this.paths)}}}(c("../tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("../tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("../tree")),c("./tree").find=function(a,b){for(var c=0,d;c<a.length;c++)if(d=b.call(a,a[c]))return d;return null},c("./tree").jsify=function(a){return Array.isArray(a.value)&&a.value.length>1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c){a&&p(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k<i.length;k++)(i[k].rel==="stylesheet/less"||i[k].rel.match(/stylesheet/)&&i[k].type.match(j))&&d.sheets.push(i[k]);d.refresh=function(a){var b,c;b=c=new Date,m(function(a,d,e){e.local?t("loading "+d.href+" from cache."):(t("parsed "+d.href+" successfully."),p(a.toCSS(),d,e.lastModified)),t("css for "+d.href+" generated in "+(new Date-c)+"ms"),e.remaining===0&&t("css generated in "+(new Date-b)+"ms"),c=new Date},a),l()},d.refreshStyles=l,d.refresh(d.env==="development")})(window);
>-diff --git a/dist/less-1.1.6.js b/dist/less-1.1.6.js
>-deleted file mode 100644
>-index 93014eedbd0785d069641a1875f994ef24734fb1..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.6.js
>-+++ /dev/null
>-@@ -1,3004 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.6
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
>--    // Rhino
>--    // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
>--    less = {};
>--    tree = less.tree = {};
>--    less.mode = 'rhino';
>--} else if (typeof(window) === 'undefined') {
>--    // Node.js
>--    less = exports,
>--    tree = require('./tree');
>--    less.mode = 'node';
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--    less.mode = 'browser';
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                callback(root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            root = new(tree.Ruleset)([], $(this.parsers.primary));
>--            root.root = true;
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        lines = input.split('\n');
>--                        line = getLine(e.index);
>--
>--                        for (var n = e.index, column = -1;
>--                                 n >= 0 && input.charAt(n) !== '\n';
>--                                 n--) { column++ }
>--
>--                        throw {
>--                            type: e.type,
>--                            message: e.message,
>--                            filename: env.filename,
>--                            index: e.index,
>--                            line: typeof(line) === 'number' ? line + 1 : null,
>--                            callLine: e.call && (getLine(e.call) + 1),
>--                            callExtract: lines[getLine(e.call)],
>--                            stack: e.stack,
>--                            column: column,
>--                            extract: [
>--                                lines[line - 1],
>--                                lines[line],
>--                                lines[line + 1]
>--                            ]
>--                        };
>--                    }
>--                    if (options.yuicompress && less.mode === 'node') {
>--                        return require('./cssmin').compressor.cssmin(css);
>--                    } else if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--
>--                    function getLine(index) {
>--                        return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    name: "ParseError",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--
>--                    if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { 
>--                        if (tree.colors.hasOwnProperty(k)) {
>--                            // detect named color
>--                            return new(tree.Color)(tree.colors[k].slice(1));
>--                        } else {
>--                            return new(tree.Keyword)(k) 
>--                        }
>--                    }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.entities.assignment) || $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                // Assignments are argument entities for calls.
>--                // They are present in ie filter properties as shown below.
>--                //
>--                //     filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
>--                //
>--
>--                assignment: function () {
>--                    var key, value;
>--                    if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) {
>--                        return new(tree.Assignment)(key, value);
>--                    }
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--                    if (! $(')')) throw new(Error)("missing closing ) for url()");
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i);
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e, i));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value;
>--
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    if (value = $(this.expression)) {
>--                                        params.push({ name: param.name, value: value });
>--                                    } else {
>--                                        throw new(Error)("Expected value");
>--                                    }
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset);
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^\(opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    if (! $(')')) throw new(Error)("missing closing ) for alpha()");
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\$?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) ||
>--                    $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (e) { return new(tree.Element)(c, e, i) }
>--
>--                if (c.value && c.value.charAt(0) === '&') {
>--                    return new(tree.Element)(c, null, i);
>--                }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === '&') {
>--                    match = '&';
>--                    i++;
>--                    if(input.charAt(i) === ' ') {
>--                        match = '& ';
>--                    }
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(match);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                while (s = $(this.selector)) {
>--                    selectors.push(s);
>--                    $(this.comment);
>--                    if (! $(',')) { break }
>--                    $(this.comment);
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url)) &&
>--                    $(';')) {
>--                    return new(tree.Import)(path, imports);
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import'])) {
>--                    return value;
>--                } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/) || $('keyframes')) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (less.mode === 'browser' || less.mode === 'rhino') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fade: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a = amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        return this._math('round', n);
>--    },
>--    ceil: function (n) {
>--        return this._math('ceil', n);
>--    },
>--    floor: function (n) {
>--        return this._math('floor', n);
>--    },
>--    _math: function (fn, n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math[fn](number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math[fn](n);
>--        } else {
>--            throw {
>--                error: "RuntimeError",
>--                message: "math functions take numbers as parameters"
>--            };
>--        }
>--    },
>--    argb: function (color) {
>--        return new(tree.Anonymous)(color.toARGB());
>--
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('./tree'));
>--(function (tree) {
>--    tree.colors = {
>--        'aliceblue':'#f0f8ff',
>--        'antiquewhite':'#faebd7',
>--        'aqua':'#00ffff',
>--        'aquamarine':'#7fffd4',
>--        'azure':'#f0ffff',
>--        'beige':'#f5f5dc',
>--        'bisque':'#ffe4c4',
>--        'black':'#000000',
>--        'blanchedalmond':'#ffebcd',
>--        'blue':'#0000ff',
>--        'blueviolet':'#8a2be2',
>--        'brown':'#a52a2a',
>--        'burlywood':'#deb887',
>--        'cadetblue':'#5f9ea0',
>--        'chartreuse':'#7fff00',
>--        'chocolate':'#d2691e',
>--        'coral':'#ff7f50',
>--        'cornflowerblue':'#6495ed',
>--        'cornsilk':'#fff8dc',
>--        'crimson':'#dc143c',
>--        'cyan':'#00ffff',
>--        'darkblue':'#00008b',
>--        'darkcyan':'#008b8b',
>--        'darkgoldenrod':'#b8860b',
>--        'darkgray':'#a9a9a9',
>--        'darkgrey':'#a9a9a9',
>--        'darkgreen':'#006400',
>--        'darkkhaki':'#bdb76b',
>--        'darkmagenta':'#8b008b',
>--        'darkolivegreen':'#556b2f',
>--        'darkorange':'#ff8c00',
>--        'darkorchid':'#9932cc',
>--        'darkred':'#8b0000',
>--        'darksalmon':'#e9967a',
>--        'darkseagreen':'#8fbc8f',
>--        'darkslateblue':'#483d8b',
>--        'darkslategray':'#2f4f4f',
>--        'darkslategrey':'#2f4f4f',
>--        'darkturquoise':'#00ced1',
>--        'darkviolet':'#9400d3',
>--        'deeppink':'#ff1493',
>--        'deepskyblue':'#00bfff',
>--        'dimgray':'#696969',
>--        'dimgrey':'#696969',
>--        'dodgerblue':'#1e90ff',
>--        'firebrick':'#b22222',
>--        'floralwhite':'#fffaf0',
>--        'forestgreen':'#228b22',
>--        'fuchsia':'#ff00ff',
>--        'gainsboro':'#dcdcdc',
>--        'ghostwhite':'#f8f8ff',
>--        'gold':'#ffd700',
>--        'goldenrod':'#daa520',
>--        'gray':'#808080',
>--        'grey':'#808080',
>--        'green':'#008000',
>--        'greenyellow':'#adff2f',
>--        'honeydew':'#f0fff0',
>--        'hotpink':'#ff69b4',
>--        'indianred':'#cd5c5c',
>--        'indigo':'#4b0082',
>--        'ivory':'#fffff0',
>--        'khaki':'#f0e68c',
>--        'lavender':'#e6e6fa',
>--        'lavenderblush':'#fff0f5',
>--        'lawngreen':'#7cfc00',
>--        'lemonchiffon':'#fffacd',
>--        'lightblue':'#add8e6',
>--        'lightcoral':'#f08080',
>--        'lightcyan':'#e0ffff',
>--        'lightgoldenrodyellow':'#fafad2',
>--        'lightgray':'#d3d3d3',
>--        'lightgrey':'#d3d3d3',
>--        'lightgreen':'#90ee90',
>--        'lightpink':'#ffb6c1',
>--        'lightsalmon':'#ffa07a',
>--        'lightseagreen':'#20b2aa',
>--        'lightskyblue':'#87cefa',
>--        'lightslategray':'#778899',
>--        'lightslategrey':'#778899',
>--        'lightsteelblue':'#b0c4de',
>--        'lightyellow':'#ffffe0',
>--        'lime':'#00ff00',
>--        'limegreen':'#32cd32',
>--        'linen':'#faf0e6',
>--        'magenta':'#ff00ff',
>--        'maroon':'#800000',
>--        'mediumaquamarine':'#66cdaa',
>--        'mediumblue':'#0000cd',
>--        'mediumorchid':'#ba55d3',
>--        'mediumpurple':'#9370d8',
>--        'mediumseagreen':'#3cb371',
>--        'mediumslateblue':'#7b68ee',
>--        'mediumspringgreen':'#00fa9a',
>--        'mediumturquoise':'#48d1cc',
>--        'mediumvioletred':'#c71585',
>--        'midnightblue':'#191970',
>--        'mintcream':'#f5fffa',
>--        'mistyrose':'#ffe4e1',
>--        'moccasin':'#ffe4b5',
>--        'navajowhite':'#ffdead',
>--        'navy':'#000080',
>--        'oldlace':'#fdf5e6',
>--        'olive':'#808000',
>--        'olivedrab':'#6b8e23',
>--        'orange':'#ffa500',
>--        'orangered':'#ff4500',
>--        'orchid':'#da70d6',
>--        'palegoldenrod':'#eee8aa',
>--        'palegreen':'#98fb98',
>--        'paleturquoise':'#afeeee',
>--        'palevioletred':'#d87093',
>--        'papayawhip':'#ffefd5',
>--        'peachpuff':'#ffdab9',
>--        'peru':'#cd853f',
>--        'pink':'#ffc0cb',
>--        'plum':'#dda0dd',
>--        'powderblue':'#b0e0e6',
>--        'purple':'#800080',
>--        'red':'#ff0000',
>--        'rosybrown':'#bc8f8f',
>--        'royalblue':'#4169e1',
>--        'saddlebrown':'#8b4513',
>--        'salmon':'#fa8072',
>--        'sandybrown':'#f4a460',
>--        'seagreen':'#2e8b57',
>--        'seashell':'#fff5ee',
>--        'sienna':'#a0522d',
>--        'silver':'#c0c0c0',
>--        'skyblue':'#87ceeb',
>--        'slateblue':'#6a5acd',
>--        'slategray':'#708090',
>--        'slategrey':'#708090',
>--        'snow':'#fffafa',
>--        'springgreen':'#00ff7f',
>--        'steelblue':'#4682b4',
>--        'tan':'#d2b48c',
>--        'teal':'#008080',
>--        'thistle':'#d8bfd8',
>--        'tomato':'#ff6347',
>--        'turquoise':'#40e0d0',
>--        'violet':'#ee82ee',
>--        'wheat':'#f5deb3',
>--        'white':'#ffffff',
>--        'whitesmoke':'#f5f5f5',
>--        'yellow':'#ffff00',
>--        'yellowgreen':'#9acd32'
>--    };
>--})(require('./tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Assignment = function (key, val) {
>--    this.key = key;
>--    this.value = val;
>--};
>--tree.Assignment.prototype = {
>--    toCSS: function () {
>--        return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value);
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { message: "error evaluating function `" + this.name + "`",
>--                        index: this.index };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    },
>--    toARGB: function () {
>--        var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
>--        return '#' + argb.map(function (i) {
>--            i = Math.round(i);
>--            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--            return i.length === 1 ? '0' + i : i;
>--        }).join('');
>--    }
>--};
>--
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value, index) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--    this.value = value ? value.trim() : "";
>--    this.index = index;
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + this.value;
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else if (value === '& ') {
>--        this.value = '& ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        '& ' : ' ',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports) {
>--    var that = this;
>--
>--    this._path = path;
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css(\?.*)?$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (root) {
>--            if (! root) {
>--                throw new(Error)("Error parsing " + that.path);
>--            }
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function () {
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset;
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    eval: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), context, _arguments = [];
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return v.value || v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + ";";
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > rule.selectors[j].elements.length) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                this.joinSelectors( paths, context, this.selectors );
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--        var before = [], after = [], beforeElements = [],
>--            afterElements = [], hasParentSelector = false, el;
>--
>--        for (var i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.combinator.value.charAt(0) === '&') {
>--                hasParentSelector = true;
>--            }
>--            if (hasParentSelector) afterElements.push(el);
>--            else                   beforeElements.push(el);
>--        }
>--
>--        if (! hasParentSelector) {
>--            afterElements = beforeElements;
>--            beforeElements = [];
>--        }
>--
>--        if (beforeElements.length > 0) {
>--            before.push(new(tree.Selector)(beforeElements));
>--        }
>--
>--        if (afterElements.length > 0) {
>--            after.push(new(tree.Selector)(afterElements));
>--        }
>--
>--        for (var c = 0; c < context.length; c++) {
>--            paths.push(before.concat(context[c]).concat(after));
>--        }
>--    }
>--};
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    var len  = this.elements.length,
>--        olen = other.elements.length,
>--        max  = Math.min(len, olen);
>--
>--    if (len < olen) {
>--        return false;
>--    } else {
>--        for (var i = 0; i < max; i++) {
>--            if (this.elements[i].value !== other.elements[i].value) {
>--                return false;
>--            }
>--        }
>--    }
>--    return true;
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--require('./tree').find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--require('./tree').jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (root, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (root, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                var css = tree.toCSS();
>--                var style = styles[i];
>--                try {
>--                    style.innerHTML = css;
>--                } catch (_) {
>--                    style.styleSheets.cssText = css;
>--                }
>--                style.type = 'text/css';
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--
>--    var template = ['<ul>',
>--                        '<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',
>--                        '<li><label>[0]</label><pre>{current}</pre></li>',
>--                        '<li><label>[1]</label><pre class="ctx">{2}</pre></li>',
>--                    '</ul>'].join('\n');
>--
>--    var elem = document.createElement('div'), timer, content;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p><a href="' + href   + '">' + href + "</a> ";
>--
>--    if (e.extract) {
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--            template.replace(/\[(-?\d)\]/g, function (_, i) {
>--                return (parseInt(e.line) + parseInt(i)) || '';
>--            }).replace(/\{(\d)\}/g, function (_, i) {
>--                return e.extract[parseInt(i)] || '';
>--            }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '<span class="error">' +
>--                                      e.extract[1].slice(e.column)    + '</span>');
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #ee4444;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.ctx {',
>--            'color: #dd4444;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.1.6.min.js b/dist/less-1.1.6.min.js
>-deleted file mode 100644
>-index a30623b993a18b4959d33f0ce5700383fe8b0631..0000000000000000000000000000000000000000
>---- a/dist/less-1.1.6.min.js
>-+++ /dev/null
>-@@ -1,9 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.1.6
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
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"+b.trim():b.toCSS(a)}).join("")}}(c("../tree")),function(b){b.URL=function(b,c){b.data?this.attrs=b:(typeof a!="undefined"&&!/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(b.value)&&c.length>0&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("../tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("../tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("../tree")),c("./tree").find=function(a,b){for(var c=0,d;c<a.length;c++)if(d=b.call(a,a[c]))return d;return null},c("./tree").jsify=function(a){return Array.isArray(a.value)&&a.value.length>1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c){a&&p(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k<i.length;k++)(i[k].rel==="stylesheet/less"||i[k].rel.match(/stylesheet/)&&i[k].type.match(j))&&d.sheets.push(i[k]);d.refresh=function(a){var b,c;b=c=new Date,m(function(a,d,e){e.local?t("loading "+d.href+" from cache."):(t("parsed "+d.href+" successfully."),p(a.toCSS(),d,e.lastModified)),t("css for "+d.href+" generated in "+(new Date-c)+"ms"),e.remaining===0&&t("css generated in "+(new Date-b)+"ms"),c=new Date},a),l()},d.refreshStyles=l,d.refresh(d.env==="development")})(window);
>-\ No newline at end of file
>-diff --git a/dist/less-1.2.0.js b/dist/less-1.2.0.js
>-deleted file mode 100644
>-index df376ae7ecd026c7940e62114595f1c9624e7c87..0000000000000000000000000000000000000000
>---- a/dist/less-1.2.0.js
>-+++ /dev/null
>-@@ -1,3293 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.2.0
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
>--    // Rhino
>--    // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
>--    if (typeof(window) === 'undefined') { less = {} }
>--    else                                { less = window.less = {} }
>--    tree = less.tree = {};
>--    less.mode = 'rhino';
>--} else if (typeof(window) === 'undefined') {
>--    // Node.js
>--    less = exports,
>--    tree = require('./tree');
>--    less.mode = 'node';
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--    less.mode = 'browser';
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        error: null,                    // Error in parsing/evaluating an import
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (e, root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                if (e && !that.error) { that.error = e }
>--                callback(e, root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    function expect(arg, msg) {
>--        var result = $(arg);
>--        if (! result) {
>--            error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'"
>--                                                   : "unexpected token"));
>--        } else {
>--            return result;
>--        }
>--    }
>--
>--    function error(msg, type) {
>--        throw { index: i, type: type || 'Syntax', message: msg };
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    function getLocation(index) {
>--        for (var n = index, column = -1;
>--                 n >= 0 && input.charAt(n) !== '\n';
>--                 n--) { column++ }
>--
>--        return { line:   index ? (input.slice(0, index).match(/\n/g) || "").length : null,
>--                 column: column };
>--    }
>--
>--    function LessError(e, env) {
>--        var lines = input.split('\n'),
>--            loc = getLocation(e.index),
>--            line = loc.line,
>--            col  = loc.column;
>--
>--        this.type = e.type || 'SyntaxError';
>--        this.message = e.message;
>--        this.filename = e.filename || env.filename;
>--        this.index = e.index;
>--        this.line = typeof(line) === 'number' ? line + 1 : null;
>--        this.callLine = e.call && (getLocation(e.call) + 1);
>--        this.callExtract = lines[getLocation(e.call)];
>--        this.stack = e.stack;
>--        this.column = col;
>--        this.extract = [
>--            lines[line - 1],
>--            lines[line],
>--            lines[line + 1]
>--        ];
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            try {
>--                root = new(tree.Ruleset)([], $(this.parsers.primary));
>--                root.root = true;
>--            } catch (e) {
>--                return callback(new(LessError)(e, env));
>--            }
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        throw new(LessError)(e, env);
>--                    }
>--
>--                    if (parser.imports.error) { throw parser.imports.error }
>--
>--                    if (options.yuicompress && less.mode === 'node') {
>--                        return require('./cssmin').compressor.cssmin(css);
>--                    } else if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    type: "Parse",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--
>--                    if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { 
>--                        if (tree.colors.hasOwnProperty(k)) {
>--                            // detect named color
>--                            return new(tree.Color)(tree.colors[k].slice(1));
>--                        } else {
>--                            return new(tree.Keyword)(k);
>--                        }
>--                    }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.entities.assignment) || $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                // Assignments are argument entities for calls.
>--                // They are present in ie filter properties as shown below.
>--                //
>--                //     filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
>--                //
>--
>--                assignment: function () {
>--                    var key, value;
>--                    if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) {
>--                        return new(tree.Assignment)(key, value);
>--                    }
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--
>--                    expect(')');
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i), important = false;
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e, i));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if ($(this.important)) {
>--                        important = true;
>--                    }
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index, important);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value, cond;
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    save();
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    value = expect(this.expression, 'expected expression');
>--                                    params.push({ name: param.name, value: value });
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        expect(')');
>--
>--                        if ($(/^when/)) { // Guard
>--                            cond = expect(this.conditions, 'expected condition');
>--                        }
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset, cond);
>--                        } else {
>--                            restore();
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^$opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    expect(')');
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c, v;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) ||
>--                    $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (! e) {
>--                    $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v));
>--                }
>--
>--                if (e) { return new(tree.Element)(c, e, i) }
>--
>--                if (c.value && c.value.charAt(0) === '&') {
>--                    return new(tree.Element)(c, null, i);
>--                }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === '&') {
>--                    match = '&';
>--                    i++;
>--                    if(input.charAt(i) === ' ') {
>--                        match = '& ';
>--                    }
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(match);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                while (s = $(this.selector)) {
>--                    selectors.push(s);
>--                    $(this.comment);
>--                    if (! $(',')) { break }
>--                    $(this.comment);
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path, features;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url))) {
>--                    features = $(this.mediaFeatures);
>--                    if ($(';')) {
>--                        return new(tree.Import)(path, imports, features);
>--                    }
>--                }
>--            },
>--
>--            mediaFeature: function () {
>--                var nodes = [];
>--
>--                do {
>--                    if (e = $(this.entities.keyword)) {
>--                        nodes.push(e);
>--                    } else if ($('(')) {
>--                        p = $(this.property);
>--                        e = $(this.entity);
>--                        if ($(')')) {
>--                            if (p && e) {
>--                                nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true)));
>--                            } else if (e) {
>--                                nodes.push(new(tree.Paren)(e));
>--                            } else {
>--                                return null;
>--                            }
>--                        } else { return null }
>--                    }
>--                } while (e);
>--
>--                if (nodes.length > 0) {
>--                    return new(tree.Expression)(nodes);
>--                }
>--            },
>--
>--            mediaFeatures: function () {
>--                var f, features = [];
>--                while (f = $(this.mediaFeature)) {
>--                    features.push(f);
>--                    if (! $(',')) { break }
>--                }
>--                return features.length > 0 ? features : null;
>--            },
>--
>--            media: function () {
>--                var features;
>--
>--                if ($(/^@media/)) {
>--                    features = $(this.mediaFeatures);
>--
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)('@media', rules, features);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types, e, nodes;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import']) || $(this.media)) {
>--                    return value;
>--                } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            conditions: function () {
>--                var a, b, index = i, condition;
>--
>--                if (a = $(this.condition)) {
>--                    while ($(',') && (b = $(this.condition))) {
>--                        condition = new(tree.Condition)('or', condition || a, b, index);
>--                    }
>--                    return condition || a;
>--                }
>--            },
>--            condition: function () {
>--                var a, b, c, op, index = i, negate = false;
>--
>--                if ($(/^not/)) { negate = true }
>--                expect('(');
>--                if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                    if (op = $(/^(?:>=|=<|[<=>])/)) {
>--                        if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                            c = new(tree.Condition)(op, a, b, index, negate);
>--                        } else {
>--                            error('expected expression');
>--                        }
>--                    } else {
>--                        c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate);
>--                    }
>--                    expect(')');
>--                    return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (less.mode === 'browser' || less.mode === 'rhino') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fade: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a = amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        return this._math('round', n);
>--    },
>--    ceil: function (n) {
>--        return this._math('ceil', n);
>--    },
>--    floor: function (n) {
>--        return this._math('floor', n);
>--    },
>--    _math: function (fn, n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math[fn](number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math[fn](n);
>--        } else {
>--            throw { type: "Argument", message: "argument must be a number" };
>--        }
>--    },
>--    argb: function (color) {
>--        return new(tree.Anonymous)(color.toARGB());
>--
>--    },
>--    percentage: function (n) {
>--        return new(tree.Dimension)(n.value * 100, '%');
>--    },
>--    color: function (n) {
>--        if (n instanceof tree.Quoted) {
>--            return new(tree.Color)(n.value.slice(1));
>--        } else {
>--            throw { type: "Argument", message: "argument must be a string" };
>--        }
>--    },
>--    iscolor: function (n) {
>--        return this._isa(n, tree.Color);
>--    },
>--    isnumber: function (n) {
>--        return this._isa(n, tree.Dimension);
>--    },
>--    isstring: function (n) {
>--        return this._isa(n, tree.Quoted);
>--    },
>--    iskeyword: function (n) {
>--        return this._isa(n, tree.Keyword);
>--    },
>--    isurl: function (n) {
>--        return this._isa(n, tree.URL);
>--    },
>--    ispixel: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False;
>--    },
>--    ispercentage: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False;
>--    },
>--    isem: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False;
>--    },
>--    _isa: function (n, Type) {
>--        return (n instanceof Type) ? tree.True : tree.False;
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('./tree'));
>--(function (tree) {
>--    tree.colors = {
>--        'aliceblue':'#f0f8ff',
>--        'antiquewhite':'#faebd7',
>--        'aqua':'#00ffff',
>--        'aquamarine':'#7fffd4',
>--        'azure':'#f0ffff',
>--        'beige':'#f5f5dc',
>--        'bisque':'#ffe4c4',
>--        'black':'#000000',
>--        'blanchedalmond':'#ffebcd',
>--        'blue':'#0000ff',
>--        'blueviolet':'#8a2be2',
>--        'brown':'#a52a2a',
>--        'burlywood':'#deb887',
>--        'cadetblue':'#5f9ea0',
>--        'chartreuse':'#7fff00',
>--        'chocolate':'#d2691e',
>--        'coral':'#ff7f50',
>--        'cornflowerblue':'#6495ed',
>--        'cornsilk':'#fff8dc',
>--        'crimson':'#dc143c',
>--        'cyan':'#00ffff',
>--        'darkblue':'#00008b',
>--        'darkcyan':'#008b8b',
>--        'darkgoldenrod':'#b8860b',
>--        'darkgray':'#a9a9a9',
>--        'darkgrey':'#a9a9a9',
>--        'darkgreen':'#006400',
>--        'darkkhaki':'#bdb76b',
>--        'darkmagenta':'#8b008b',
>--        'darkolivegreen':'#556b2f',
>--        'darkorange':'#ff8c00',
>--        'darkorchid':'#9932cc',
>--        'darkred':'#8b0000',
>--        'darksalmon':'#e9967a',
>--        'darkseagreen':'#8fbc8f',
>--        'darkslateblue':'#483d8b',
>--        'darkslategray':'#2f4f4f',
>--        'darkslategrey':'#2f4f4f',
>--        'darkturquoise':'#00ced1',
>--        'darkviolet':'#9400d3',
>--        'deeppink':'#ff1493',
>--        'deepskyblue':'#00bfff',
>--        'dimgray':'#696969',
>--        'dimgrey':'#696969',
>--        'dodgerblue':'#1e90ff',
>--        'firebrick':'#b22222',
>--        'floralwhite':'#fffaf0',
>--        'forestgreen':'#228b22',
>--        'fuchsia':'#ff00ff',
>--        'gainsboro':'#dcdcdc',
>--        'ghostwhite':'#f8f8ff',
>--        'gold':'#ffd700',
>--        'goldenrod':'#daa520',
>--        'gray':'#808080',
>--        'grey':'#808080',
>--        'green':'#008000',
>--        'greenyellow':'#adff2f',
>--        'honeydew':'#f0fff0',
>--        'hotpink':'#ff69b4',
>--        'indianred':'#cd5c5c',
>--        'indigo':'#4b0082',
>--        'ivory':'#fffff0',
>--        'khaki':'#f0e68c',
>--        'lavender':'#e6e6fa',
>--        'lavenderblush':'#fff0f5',
>--        'lawngreen':'#7cfc00',
>--        'lemonchiffon':'#fffacd',
>--        'lightblue':'#add8e6',
>--        'lightcoral':'#f08080',
>--        'lightcyan':'#e0ffff',
>--        'lightgoldenrodyellow':'#fafad2',
>--        'lightgray':'#d3d3d3',
>--        'lightgrey':'#d3d3d3',
>--        'lightgreen':'#90ee90',
>--        'lightpink':'#ffb6c1',
>--        'lightsalmon':'#ffa07a',
>--        'lightseagreen':'#20b2aa',
>--        'lightskyblue':'#87cefa',
>--        'lightslategray':'#778899',
>--        'lightslategrey':'#778899',
>--        'lightsteelblue':'#b0c4de',
>--        'lightyellow':'#ffffe0',
>--        'lime':'#00ff00',
>--        'limegreen':'#32cd32',
>--        'linen':'#faf0e6',
>--        'magenta':'#ff00ff',
>--        'maroon':'#800000',
>--        'mediumaquamarine':'#66cdaa',
>--        'mediumblue':'#0000cd',
>--        'mediumorchid':'#ba55d3',
>--        'mediumpurple':'#9370d8',
>--        'mediumseagreen':'#3cb371',
>--        'mediumslateblue':'#7b68ee',
>--        'mediumspringgreen':'#00fa9a',
>--        'mediumturquoise':'#48d1cc',
>--        'mediumvioletred':'#c71585',
>--        'midnightblue':'#191970',
>--        'mintcream':'#f5fffa',
>--        'mistyrose':'#ffe4e1',
>--        'moccasin':'#ffe4b5',
>--        'navajowhite':'#ffdead',
>--        'navy':'#000080',
>--        'oldlace':'#fdf5e6',
>--        'olive':'#808000',
>--        'olivedrab':'#6b8e23',
>--        'orange':'#ffa500',
>--        'orangered':'#ff4500',
>--        'orchid':'#da70d6',
>--        'palegoldenrod':'#eee8aa',
>--        'palegreen':'#98fb98',
>--        'paleturquoise':'#afeeee',
>--        'palevioletred':'#d87093',
>--        'papayawhip':'#ffefd5',
>--        'peachpuff':'#ffdab9',
>--        'peru':'#cd853f',
>--        'pink':'#ffc0cb',
>--        'plum':'#dda0dd',
>--        'powderblue':'#b0e0e6',
>--        'purple':'#800080',
>--        'red':'#ff0000',
>--        'rosybrown':'#bc8f8f',
>--        'royalblue':'#4169e1',
>--        'saddlebrown':'#8b4513',
>--        'salmon':'#fa8072',
>--        'sandybrown':'#f4a460',
>--        'seagreen':'#2e8b57',
>--        'seashell':'#fff5ee',
>--        'sienna':'#a0522d',
>--        'silver':'#c0c0c0',
>--        'skyblue':'#87ceeb',
>--        'slateblue':'#6a5acd',
>--        'slategray':'#708090',
>--        'slategrey':'#708090',
>--        'snow':'#fffafa',
>--        'springgreen':'#00ff7f',
>--        'steelblue':'#4682b4',
>--        'tan':'#d2b48c',
>--        'teal':'#008080',
>--        'thistle':'#d8bfd8',
>--        'tomato':'#ff6347',
>--        'turquoise':'#40e0d0',
>--        'violet':'#ee82ee',
>--        'wheat':'#f5deb3',
>--        'white':'#ffffff',
>--        'whitesmoke':'#f5f5f5',
>--        'yellow':'#ffff00',
>--        'yellowgreen':'#9acd32'
>--    };
>--})(require('./tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Assignment = function (key, val) {
>--    this.key = key;
>--    this.value = val;
>--};
>--tree.Assignment.prototype = {
>--    toCSS: function () {
>--        return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value);
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { type: e.type || "Runtime",
>--                        message: "error evaluating function `" + this.name + "`" +
>--                                 (e.message ? ': ' + e.message : ''),
>--                        index: this.index };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    },
>--    toARGB: function () {
>--        var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
>--        return '#' + argb.map(function (i) {
>--            i = Math.round(i);
>--            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--            return i.length === 1 ? '0' + i : i;
>--        }).join('');
>--    }
>--};
>--
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Condition = function (op, l, r, i, negate) {
>--    this.op = op.trim();
>--    this.lvalue = l;
>--    this.rvalue = r;
>--    this.index = i;
>--    this.negate = negate;
>--};
>--tree.Condition.prototype.eval = function (env) {
>--    var a = this.lvalue.eval(env),
>--        b = this.rvalue.eval(env);
>--
>--    var i = this.index, result
>--
>--    var result = (function (op) {
>--        switch (op) {
>--            case 'and':
>--                return a && b;
>--            case 'or':
>--                return a || b;
>--            default:
>--                if (a.compare) {
>--                    result = a.compare(b);
>--                } else if (b.compare) {
>--                    result = b.compare(a);
>--                } else {
>--                    throw { type: "Type",
>--                            message: "Unable to perform comparison",
>--                            index: i };
>--                }
>--                switch (result) {
>--                    case -1: return op === '<' || op === '=<';
>--                    case  0: return op === '=' || op === '>=' || op === '=<';
>--                    case  1: return op === '>' || op === '>=';
>--                }
>--        }
>--    })(this.op);
>--    return this.negate ? !result : result;
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    },
>--
>--    // TODO: Perform unit conversion before comparing
>--    compare: function (other) {
>--        if (other instanceof tree.Dimension) {
>--            if (other.value > this.value) {
>--                return -1;
>--            } else if (other.value < this.value) {
>--                return 1;
>--            } else {
>--                return 0;
>--            }
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value, features) {
>--    this.name = name;
>--    this.features = features && new(tree.Value)(features);
>--
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--        this.ruleset.allowImports = true;
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        var features = this.features ? ' ' + this.features.toCSS(env) : '';
>--
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + features + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        this.features = this.features && this.features.eval(env);
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value, index) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--
>--    if (typeof(value) === 'string') {
>--        this.value = value.trim();
>--    } else if (value) {
>--        this.value = value;
>--    } else {
>--        this.value = "";
>--    }
>--    this.index = index;
>--};
>--tree.Element.prototype.eval = function (env) {
>--    return new(tree.Element)(this.combinator,
>--                             this.value.eval ? this.value.eval(env) : this.value,
>--                             this.index);
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value);
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else if (value === '& ') {
>--        this.value = '& ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        '& ' : ' ',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS ? e.toCSS(env) : '';
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports, features) {
>--    var that = this;
>--
>--    this._path = path;
>--    this.features = features && new(tree.Value)(features);
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css(\?.*)?$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (e, root) {
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function (env) {
>--        var features = this.features ? ' ' + this.features.toCSS(env) : '';
>--
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + features + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset, features = this.features && this.features.eval(env);
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)([], this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value },
>--    compare: function (other) {
>--        if (other instanceof tree.Keyword) {
>--            return other.value === this.value ? 0 : 1;
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--tree.True = new(tree.Keyword)('true');
>--tree.False = new(tree.Keyword)('false');
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index, important) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--    this.important = important;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments, this.important).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { type:    'Runtime',
>--                            message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { type: 'Name',
>--                message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules, condition) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.condition = condition;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    evalParams: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []);
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { type: 'Runtime', message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        return frame;
>--    },
>--    eval: function (env, args, important) {
>--        var frame = this.evalParams(env, args), context, _arguments = [], rules;
>--
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        rules = important ?
>--            this.rules.map(function (r) {
>--                return new(tree.Rule)(r.name, r.value, '!important', r.index);
>--            }) : this.rules.slice(0);
>--
>--        return new(tree.Ruleset)(null, rules).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len, frame;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--        if (this.condition && !this.condition.eval({
>--            frames: [this.evalParams(env, args)].concat(env.frames)
>--        }))                                                           { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Paren = function (node) {
>--    this.value = node;
>--};
>--tree.Paren.prototype = {
>--    toCSS: function (env) {
>--        return '(' + this.value.toCSS(env) + ')';
>--    },
>--    eval: function (env) {
>--        return new(tree.Paren)(this.value.eval(env));
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return ('value' in v) ? v.value : v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index, inline) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--    this.inline = inline || false;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + (this.inline ? "" : ";");
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name,
>--                          this.value.eval(context),
>--                          this.important,
>--                          this.index, this.inline);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) });
>--        var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--        ruleset.allowImports = this.allowImports;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root || ruleset.allowImports) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > rule.selectors[j].elements.length) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                this.joinSelectors(paths, context, this.selectors);
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--        var before = [], after = [], beforeElements = [],
>--            afterElements = [], hasParentSelector = false, el;
>--
>--        for (var i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.combinator.value.charAt(0) === '&') {
>--                hasParentSelector = true;
>--            }
>--            if (hasParentSelector) afterElements.push(el);
>--            else                   beforeElements.push(el);
>--        }
>--
>--        if (! hasParentSelector) {
>--            afterElements = beforeElements;
>--            beforeElements = [];
>--        }
>--
>--        if (beforeElements.length > 0) {
>--            before.push(new(tree.Selector)(beforeElements));
>--        }
>--
>--        if (afterElements.length > 0) {
>--            after.push(new(tree.Selector)(afterElements));
>--        }
>--
>--        for (var c = 0; c < context.length; c++) {
>--            paths.push(before.concat(context[c]).concat(after));
>--        }
>--    }
>--};
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    var len  = this.elements.length,
>--        olen = other.elements.length,
>--        max  = Math.min(len, olen);
>--
>--    if (len < olen) {
>--        return false;
>--    } else {
>--        for (var i = 0; i < max; i++) {
>--            if (this.elements[i].value !== other.elements[i].value) {
>--                return false;
>--            }
>--        }
>--    }
>--    return true;
>--};
>--tree.Selector.prototype.eval = function (env) {
>--    return new(tree.Selector)(this.elements.map(function (e) {
>--        return e.eval(env);
>--    }));
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--tree.jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--
>--})(require('./tree'));
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (root, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (root, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                var css = tree.toCSS();
>--                var style = styles[i];
>--                style.type = 'text/css';
>--                if (style.styleSheet) {
>--                    style.styleSheet.cssText = css;
>--                } else {
>--                    style.innerHTML = css;
>--                }
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--
>--    var template = ['<ul>',
>--                        '<li><label>[-1]</label><pre class="ctx">{0}</pre></li>',
>--                        '<li><label>[0]</label><pre>{current}</pre></li>',
>--                        '<li><label>[1]</label><pre class="ctx">{2}</pre></li>',
>--                    '</ul>'].join('\n');
>--
>--    var elem = document.createElement('div'), timer, content;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p><a href="' + href   + '">' + href + "</a> ";
>--
>--    if (e.extract) {
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--            template.replace(/\[(-?\d)\]/g, function (_, i) {
>--                return (parseInt(e.line) + parseInt(i)) || '';
>--            }).replace(/\{(\d)\}/g, function (_, i) {
>--                return e.extract[parseInt(i)] || '';
>--            }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '<span class="error">' +
>--                                      e.extract[1].slice(e.column)    + '</span>');
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #ee4444;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.ctx {',
>--            'color: #dd4444;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.2.0.min.js b/dist/less-1.2.0.min.js
>-deleted file mode 100644
>-index 84e90475aa66aac789a88eab62bffb6f190545a5..0000000000000000000000000000000000000000
>---- a/dist/less-1.2.0.min.js
>-+++ /dev/null
>-@@ -1,9 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.2.0
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function(a,b){function c(b){return a.less[b.split("/")[1]]}function m(){var a=document.getElementsByTagName("style");for(var b=0;b<a.length;b++)a[b].type.match(k)&&(new d.Parser).parse(a[b].innerHTML||"",function(c,d){var e=d.toCSS(),f=a[b];f.type="text/css",f.styleSheet?f.styleSheet.cssText=e:f.innerHTML=e})}function n(a,b){for(var c=0;c<d.sheets.length;c++)o(d.sheets[c],a,b,d.sheets.length-(c+1))}function o(b,c,e,f){var g=a.location.href.replace(/[#?].*$/,""),i=b.href.replace(/\?.*$/,""),j=h&&h.getItem(i),k=h&&h.getItem(i+":timestamp"),l={css:j,timestamp:k};/^(https?|file):/.test(i)||(i.charAt(0)=="/"?i=a.location.protocol+"//"+a.location.host+i:i=g.slice(0,g.lastIndexOf("/")+1)+i),s(b.href,b.type,function(a,g){if(!e&&l&&g&&(new Date(g)).valueOf()===(new Date(l.timestamp)).valueOf())r(l.css,b),c(null,b,{local:!0,remaining:f});else try{(new d.Parser({optimization:d.optimization,paths:[i.replace(/[\w\.-]+$/,"")],mime:b.type})).parse(a,function(a,d){if(a)return 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>-\ No newline at end of file
>-diff --git a/dist/less-1.2.1.js b/dist/less-1.2.1.js
>-deleted file mode 100644
>-index 3b33bc656bc516496ee065fecd6a4ec5b8a59ab1..0000000000000000000000000000000000000000
>---- a/dist/less-1.2.1.js
>-+++ /dev/null
>-@@ -1,3318 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.2.1
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
>--    // Rhino
>--    // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
>--    if (typeof(window) === 'undefined') { less = {} }
>--    else                                { less = window.less = {} }
>--    tree = less.tree = {};
>--    less.mode = 'rhino';
>--} else if (typeof(window) === 'undefined') {
>--    // Node.js
>--    less = exports,
>--    tree = require('./tree');
>--    less.mode = 'node';
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--    less.mode = 'browser';
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        contents: {},                   // Holds the imported file contents
>--        mime:  env && env.mime,         // MIME type of .less files
>--        error: null,                    // Error in parsing/evaluating an import
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (e, root, contents) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--                that.contents[path] = contents;
>--
>--                if (e && !that.error) { that.error = e }
>--                callback(e, root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    function expect(arg, msg) {
>--        var result = $(arg);
>--        if (! result) {
>--            error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'"
>--                                                   : "unexpected token"));
>--        } else {
>--            return result;
>--        }
>--    }
>--
>--    function error(msg, type) {
>--        throw { index: i, type: type || 'Syntax', message: msg };
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    function getInput(e, env) {
>--        if (e.filename && env.filename && (e.filename !== env.filename)) {
>--            return parser.imports.contents[e.filename];
>--        } else {
>--            return input;
>--        }
>--    }
>--
>--    function getLocation(index, input) {
>--        for (var n = index, column = -1;
>--                 n >= 0 && input.charAt(n) !== '\n';
>--                 n--) { column++ }
>--
>--        return { line:   typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null,
>--                 column: column };
>--    }
>--
>--    function LessError(e, env) {
>--        var input = getInput(e, env),
>--            loc = getLocation(e.index, input),
>--            line = loc.line,
>--            col  = loc.column,
>--            lines = input.split('\n');
>--
>--        this.type = e.type || 'Syntax';
>--        this.message = e.message;
>--        this.filename = e.filename || env.filename;
>--        this.index = e.index;
>--        this.line = typeof(line) === 'number' ? line + 1 : null;
>--        this.callLine = e.call && (getLocation(e.call, input) + 1);
>--        this.callExtract = lines[getLocation(e.call, input)];
>--        this.stack = e.stack;
>--        this.column = col;
>--        this.extract = [
>--            lines[line - 1],
>--            lines[line],
>--            lines[line + 1]
>--        ];
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            try {
>--                root = new(tree.Ruleset)([], $(this.parsers.primary));
>--                root.root = true;
>--            } catch (e) {
>--                return callback(new(LessError)(e, env));
>--            }
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [], importError;
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        throw new(LessError)(e, env);
>--                    }
>--
>--                    if ((importError = parser.imports.error)) { // Check if there was an error during importing
>--                        if (importError instanceof LessError) throw importError;
>--                        else                                  throw new(LessError)(importError, env);
>--                    }
>--
>--                    if (options.yuicompress && less.mode === 'node') {
>--                        return require('./cssmin').compressor.cssmin(css);
>--                    } else if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    type: "Parse",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--
>--                    if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { 
>--                        if (tree.colors.hasOwnProperty(k)) {
>--                            // detect named color
>--                            return new(tree.Color)(tree.colors[k].slice(1));
>--                        } else {
>--                            return new(tree.Keyword)(k);
>--                        }
>--                    }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index, env.filename) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.entities.assignment) || $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                // Assignments are argument entities for calls.
>--                // They are present in ie filter properties as shown below.
>--                //
>--                //     filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
>--                //
>--
>--                assignment: function () {
>--                    var key, value;
>--                    if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) {
>--                        return new(tree.Assignment)(key, value);
>--                    }
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--
>--                    expect(')');
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index, env.filename);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i), important = false;
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e, i));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if ($(this.important)) {
>--                        important = true;
>--                    }
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index, env.filename, important);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value, cond;
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    save();
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    value = expect(this.expression, 'expected expression');
>--                                    params.push({ name: param.name, value: value });
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        expect(')');
>--
>--                        if ($(/^when/)) { // Guard
>--                            cond = expect(this.conditions, 'expected condition');
>--                        }
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset, cond);
>--                        } else {
>--                            restore();
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^$opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    expect(')');
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c, v;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) ||
>--                    $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (! e) {
>--                    $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v));
>--                }
>--
>--                if (e) { return new(tree.Element)(c, e, i) }
>--
>--                if (c.value && c.value.charAt(0) === '&') {
>--                    return new(tree.Element)(c, null, i);
>--                }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === '&') {
>--                    match = '&';
>--                    i++;
>--                    if(input.charAt(i) === ' ') {
>--                        match = '& ';
>--                    }
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(match);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                while (s = $(this.selector)) {
>--                    selectors.push(s);
>--                    $(this.comment);
>--                    if (! $(',')) { break }
>--                    $(this.comment);
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path, features, index = i;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url))) {
>--                    features = $(this.mediaFeatures);
>--                    if ($(';')) {
>--                        return new(tree.Import)(path, imports, features, index);
>--                    }
>--                }
>--            },
>--
>--            mediaFeature: function () {
>--                var nodes = [];
>--
>--                do {
>--                    if (e = $(this.entities.keyword)) {
>--                        nodes.push(e);
>--                    } else if ($('(')) {
>--                        p = $(this.property);
>--                        e = $(this.entity);
>--                        if ($(')')) {
>--                            if (p && e) {
>--                                nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true)));
>--                            } else if (e) {
>--                                nodes.push(new(tree.Paren)(e));
>--                            } else {
>--                                return null;
>--                            }
>--                        } else { return null }
>--                    }
>--                } while (e);
>--
>--                if (nodes.length > 0) {
>--                    return new(tree.Expression)(nodes);
>--                }
>--            },
>--
>--            mediaFeatures: function () {
>--                var f, features = [];
>--                while (f = $(this.mediaFeature)) {
>--                    features.push(f);
>--                    if (! $(',')) { break }
>--                }
>--                return features.length > 0 ? features : null;
>--            },
>--
>--            media: function () {
>--                var features;
>--
>--                if ($(/^@media/)) {
>--                    features = $(this.mediaFeatures);
>--
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)('@media', rules, features);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types, e, nodes;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import']) || $(this.media)) {
>--                    return value;
>--                } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            conditions: function () {
>--                var a, b, index = i, condition;
>--
>--                if (a = $(this.condition)) {
>--                    while ($(',') && (b = $(this.condition))) {
>--                        condition = new(tree.Condition)('or', condition || a, b, index);
>--                    }
>--                    return condition || a;
>--                }
>--            },
>--            condition: function () {
>--                var a, b, c, op, index = i, negate = false;
>--
>--                if ($(/^not/)) { negate = true }
>--                expect('(');
>--                if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                    if (op = $(/^(?:>=|=<|[<=>])/)) {
>--                        if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                            c = new(tree.Condition)(op, a, b, index, negate);
>--                        } else {
>--                            error('expected expression');
>--                        }
>--                    } else {
>--                        c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate);
>--                    }
>--                    expect(')');
>--                    return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (less.mode === 'browser' || less.mode === 'rhino') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fade: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a = amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        return this._math('round', n);
>--    },
>--    ceil: function (n) {
>--        return this._math('ceil', n);
>--    },
>--    floor: function (n) {
>--        return this._math('floor', n);
>--    },
>--    _math: function (fn, n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math[fn](number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math[fn](n);
>--        } else {
>--            throw { type: "Argument", message: "argument must be a number" };
>--        }
>--    },
>--    argb: function (color) {
>--        return new(tree.Anonymous)(color.toARGB());
>--
>--    },
>--    percentage: function (n) {
>--        return new(tree.Dimension)(n.value * 100, '%');
>--    },
>--    color: function (n) {
>--        if (n instanceof tree.Quoted) {
>--            return new(tree.Color)(n.value.slice(1));
>--        } else {
>--            throw { type: "Argument", message: "argument must be a string" };
>--        }
>--    },
>--    iscolor: function (n) {
>--        return this._isa(n, tree.Color);
>--    },
>--    isnumber: function (n) {
>--        return this._isa(n, tree.Dimension);
>--    },
>--    isstring: function (n) {
>--        return this._isa(n, tree.Quoted);
>--    },
>--    iskeyword: function (n) {
>--        return this._isa(n, tree.Keyword);
>--    },
>--    isurl: function (n) {
>--        return this._isa(n, tree.URL);
>--    },
>--    ispixel: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False;
>--    },
>--    ispercentage: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False;
>--    },
>--    isem: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False;
>--    },
>--    _isa: function (n, Type) {
>--        return (n instanceof Type) ? tree.True : tree.False;
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('./tree'));
>--(function (tree) {
>--    tree.colors = {
>--        'aliceblue':'#f0f8ff',
>--        'antiquewhite':'#faebd7',
>--        'aqua':'#00ffff',
>--        'aquamarine':'#7fffd4',
>--        'azure':'#f0ffff',
>--        'beige':'#f5f5dc',
>--        'bisque':'#ffe4c4',
>--        'black':'#000000',
>--        'blanchedalmond':'#ffebcd',
>--        'blue':'#0000ff',
>--        'blueviolet':'#8a2be2',
>--        'brown':'#a52a2a',
>--        'burlywood':'#deb887',
>--        'cadetblue':'#5f9ea0',
>--        'chartreuse':'#7fff00',
>--        'chocolate':'#d2691e',
>--        'coral':'#ff7f50',
>--        'cornflowerblue':'#6495ed',
>--        'cornsilk':'#fff8dc',
>--        'crimson':'#dc143c',
>--        'cyan':'#00ffff',
>--        'darkblue':'#00008b',
>--        'darkcyan':'#008b8b',
>--        'darkgoldenrod':'#b8860b',
>--        'darkgray':'#a9a9a9',
>--        'darkgrey':'#a9a9a9',
>--        'darkgreen':'#006400',
>--        'darkkhaki':'#bdb76b',
>--        'darkmagenta':'#8b008b',
>--        'darkolivegreen':'#556b2f',
>--        'darkorange':'#ff8c00',
>--        'darkorchid':'#9932cc',
>--        'darkred':'#8b0000',
>--        'darksalmon':'#e9967a',
>--        'darkseagreen':'#8fbc8f',
>--        'darkslateblue':'#483d8b',
>--        'darkslategray':'#2f4f4f',
>--        'darkslategrey':'#2f4f4f',
>--        'darkturquoise':'#00ced1',
>--        'darkviolet':'#9400d3',
>--        'deeppink':'#ff1493',
>--        'deepskyblue':'#00bfff',
>--        'dimgray':'#696969',
>--        'dimgrey':'#696969',
>--        'dodgerblue':'#1e90ff',
>--        'firebrick':'#b22222',
>--        'floralwhite':'#fffaf0',
>--        'forestgreen':'#228b22',
>--        'fuchsia':'#ff00ff',
>--        'gainsboro':'#dcdcdc',
>--        'ghostwhite':'#f8f8ff',
>--        'gold':'#ffd700',
>--        'goldenrod':'#daa520',
>--        'gray':'#808080',
>--        'grey':'#808080',
>--        'green':'#008000',
>--        'greenyellow':'#adff2f',
>--        'honeydew':'#f0fff0',
>--        'hotpink':'#ff69b4',
>--        'indianred':'#cd5c5c',
>--        'indigo':'#4b0082',
>--        'ivory':'#fffff0',
>--        'khaki':'#f0e68c',
>--        'lavender':'#e6e6fa',
>--        'lavenderblush':'#fff0f5',
>--        'lawngreen':'#7cfc00',
>--        'lemonchiffon':'#fffacd',
>--        'lightblue':'#add8e6',
>--        'lightcoral':'#f08080',
>--        'lightcyan':'#e0ffff',
>--        'lightgoldenrodyellow':'#fafad2',
>--        'lightgray':'#d3d3d3',
>--        'lightgrey':'#d3d3d3',
>--        'lightgreen':'#90ee90',
>--        'lightpink':'#ffb6c1',
>--        'lightsalmon':'#ffa07a',
>--        'lightseagreen':'#20b2aa',
>--        'lightskyblue':'#87cefa',
>--        'lightslategray':'#778899',
>--        'lightslategrey':'#778899',
>--        'lightsteelblue':'#b0c4de',
>--        'lightyellow':'#ffffe0',
>--        'lime':'#00ff00',
>--        'limegreen':'#32cd32',
>--        'linen':'#faf0e6',
>--        'magenta':'#ff00ff',
>--        'maroon':'#800000',
>--        'mediumaquamarine':'#66cdaa',
>--        'mediumblue':'#0000cd',
>--        'mediumorchid':'#ba55d3',
>--        'mediumpurple':'#9370d8',
>--        'mediumseagreen':'#3cb371',
>--        'mediumslateblue':'#7b68ee',
>--        'mediumspringgreen':'#00fa9a',
>--        'mediumturquoise':'#48d1cc',
>--        'mediumvioletred':'#c71585',
>--        'midnightblue':'#191970',
>--        'mintcream':'#f5fffa',
>--        'mistyrose':'#ffe4e1',
>--        'moccasin':'#ffe4b5',
>--        'navajowhite':'#ffdead',
>--        'navy':'#000080',
>--        'oldlace':'#fdf5e6',
>--        'olive':'#808000',
>--        'olivedrab':'#6b8e23',
>--        'orange':'#ffa500',
>--        'orangered':'#ff4500',
>--        'orchid':'#da70d6',
>--        'palegoldenrod':'#eee8aa',
>--        'palegreen':'#98fb98',
>--        'paleturquoise':'#afeeee',
>--        'palevioletred':'#d87093',
>--        'papayawhip':'#ffefd5',
>--        'peachpuff':'#ffdab9',
>--        'peru':'#cd853f',
>--        'pink':'#ffc0cb',
>--        'plum':'#dda0dd',
>--        'powderblue':'#b0e0e6',
>--        'purple':'#800080',
>--        'red':'#ff0000',
>--        'rosybrown':'#bc8f8f',
>--        'royalblue':'#4169e1',
>--        'saddlebrown':'#8b4513',
>--        'salmon':'#fa8072',
>--        'sandybrown':'#f4a460',
>--        'seagreen':'#2e8b57',
>--        'seashell':'#fff5ee',
>--        'sienna':'#a0522d',
>--        'silver':'#c0c0c0',
>--        'skyblue':'#87ceeb',
>--        'slateblue':'#6a5acd',
>--        'slategray':'#708090',
>--        'slategrey':'#708090',
>--        'snow':'#fffafa',
>--        'springgreen':'#00ff7f',
>--        'steelblue':'#4682b4',
>--        'tan':'#d2b48c',
>--        'teal':'#008080',
>--        'thistle':'#d8bfd8',
>--        'tomato':'#ff6347',
>--        'turquoise':'#40e0d0',
>--        'violet':'#ee82ee',
>--        'wheat':'#f5deb3',
>--        'white':'#ffffff',
>--        'whitesmoke':'#f5f5f5',
>--        'yellow':'#ffff00',
>--        'yellowgreen':'#9acd32'
>--    };
>--})(require('./tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Assignment = function (key, val) {
>--    this.key = key;
>--    this.value = val;
>--};
>--tree.Assignment.prototype = {
>--    toCSS: function () {
>--        return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value);
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index, filename) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--    this.filename = filename;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { type: e.type || "Runtime",
>--                        message: "error evaluating function `" + this.name + "`" +
>--                                 (e.message ? ': ' + e.message : ''),
>--                        index: this.index, filename: this.filename };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    },
>--    toARGB: function () {
>--        var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
>--        return '#' + argb.map(function (i) {
>--            i = Math.round(i);
>--            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--            return i.length === 1 ? '0' + i : i;
>--        }).join('');
>--    }
>--};
>--
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Condition = function (op, l, r, i, negate) {
>--    this.op = op.trim();
>--    this.lvalue = l;
>--    this.rvalue = r;
>--    this.index = i;
>--    this.negate = negate;
>--};
>--tree.Condition.prototype.eval = function (env) {
>--    var a = this.lvalue.eval(env),
>--        b = this.rvalue.eval(env);
>--
>--    var i = this.index, result
>--
>--    var result = (function (op) {
>--        switch (op) {
>--            case 'and':
>--                return a && b;
>--            case 'or':
>--                return a || b;
>--            default:
>--                if (a.compare) {
>--                    result = a.compare(b);
>--                } else if (b.compare) {
>--                    result = b.compare(a);
>--                } else {
>--                    throw { type: "Type",
>--                            message: "Unable to perform comparison",
>--                            index: i };
>--                }
>--                switch (result) {
>--                    case -1: return op === '<' || op === '=<';
>--                    case  0: return op === '=' || op === '>=' || op === '=<';
>--                    case  1: return op === '>' || op === '>=';
>--                }
>--        }
>--    })(this.op);
>--    return this.negate ? !result : result;
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    },
>--
>--    // TODO: Perform unit conversion before comparing
>--    compare: function (other) {
>--        if (other instanceof tree.Dimension) {
>--            if (other.value > this.value) {
>--                return -1;
>--            } else if (other.value < this.value) {
>--                return 1;
>--            } else {
>--                return 0;
>--            }
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value, features) {
>--    this.name = name;
>--    this.features = features && new(tree.Value)(features);
>--
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--        this.ruleset.allowImports = true;
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        var features = this.features ? ' ' + this.features.toCSS(env) : '';
>--
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + features + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        this.features = this.features && this.features.eval(env);
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value, index) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--
>--    if (typeof(value) === 'string') {
>--        this.value = value.trim();
>--    } else if (value) {
>--        this.value = value;
>--    } else {
>--        this.value = "";
>--    }
>--    this.index = index;
>--};
>--tree.Element.prototype.eval = function (env) {
>--    return new(tree.Element)(this.combinator,
>--                             this.value.eval ? this.value.eval(env) : this.value,
>--                             this.index);
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value);
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else if (value === '& ') {
>--        this.value = '& ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        '& ' : ' ',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS ? e.toCSS(env) : '';
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports, features, index) {
>--    var that = this;
>--
>--    this.index = index;
>--    this._path = path;
>--    this.features = features && new(tree.Value)(features);
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css(\?.*)?$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (e, root) {
>--            if (e) { e.index = index }
>--            that.root = root || new(tree.Ruleset)([], []);
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function (env) {
>--        var features = this.features ? ' ' + this.features.toCSS(env) : '';
>--
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + features + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset, features = this.features && this.features.eval(env);
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)([], this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value },
>--    compare: function (other) {
>--        if (other instanceof tree.Keyword) {
>--            return other.value === this.value ? 0 : 1;
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--tree.True = new(tree.Keyword)('true');
>--tree.False = new(tree.Keyword)('false');
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index, filename, important) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--    this.filename = filename;
>--    this.important = important;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments, this.important).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, filename: this.filename, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { type:    'Runtime',
>--                            message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index, filename: this.filename };
>--                }
>--            }
>--        }
>--        throw { type: 'Name',
>--                message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index, filename: this.filename };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules, condition) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.condition = condition;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    evalParams: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []);
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { type: 'Runtime', message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        return frame;
>--    },
>--    eval: function (env, args, important) {
>--        var frame = this.evalParams(env, args), context, _arguments = [], rules;
>--
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        rules = important ?
>--            this.rules.map(function (r) {
>--                return new(tree.Rule)(r.name, r.value, '!important', r.index);
>--            }) : this.rules.slice(0);
>--
>--        return new(tree.Ruleset)(null, rules).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len, frame;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--        if (this.condition && !this.condition.eval({
>--            frames: [this.evalParams(env, args)].concat(env.frames)
>--        }))                                                           { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Paren = function (node) {
>--    this.value = node;
>--};
>--tree.Paren.prototype = {
>--    toCSS: function (env) {
>--        return '(' + this.value.toCSS(env) + ')';
>--    },
>--    eval: function (env) {
>--        return new(tree.Paren)(this.value.eval(env));
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return ('value' in v) ? v.value : v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index, inline) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--    this.inline = inline || false;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + (this.inline ? "" : ";");
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name,
>--                          this.value.eval(context),
>--                          this.important,
>--                          this.index, this.inline);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) });
>--        var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--        ruleset.allowImports = this.allowImports;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root || ruleset.allowImports) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > rule.selectors[j].elements.length) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                this.joinSelectors(paths, context, this.selectors);
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--        var before = [], after = [], beforeElements = [],
>--            afterElements = [], hasParentSelector = false, el;
>--
>--        for (var i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.combinator.value.charAt(0) === '&') {
>--                hasParentSelector = true;
>--            }
>--            if (hasParentSelector) afterElements.push(el);
>--            else                   beforeElements.push(el);
>--        }
>--
>--        if (! hasParentSelector) {
>--            afterElements = beforeElements;
>--            beforeElements = [];
>--        }
>--
>--        if (beforeElements.length > 0) {
>--            before.push(new(tree.Selector)(beforeElements));
>--        }
>--
>--        if (afterElements.length > 0) {
>--            after.push(new(tree.Selector)(afterElements));
>--        }
>--
>--        for (var c = 0; c < context.length; c++) {
>--            paths.push(before.concat(context[c]).concat(after));
>--        }
>--    }
>--};
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    var len  = this.elements.length,
>--        olen = other.elements.length,
>--        max  = Math.min(len, olen);
>--
>--    if (len < olen) {
>--        return false;
>--    } else {
>--        for (var i = 0; i < max; i++) {
>--            if (this.elements[i].value !== other.elements[i].value) {
>--                return false;
>--            }
>--        }
>--    }
>--    return true;
>--};
>--tree.Selector.prototype.eval = function (env) {
>--    return new(tree.Selector)(this.elements.map(function (e) {
>--        return e.eval(env);
>--    }));
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { type: 'Name',
>--                    message: "variable " + name + " is undefined",
>--                    filename: this.file,
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--tree.jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--
>--})(require('./tree'));
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (e, root, _, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (e, root, _, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                var css = tree.toCSS();
>--                var style = styles[i];
>--                style.type = 'text/css';
>--                if (style.styleSheet) {
>--                    style.styleSheet.cssText = css;
>--                } else {
>--                    style.innerHTML = css;
>--                }
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--    var filename = href.match(/([^\/]+)$/)[1];
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type,
>--                    filename: filename
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--    var template = '<li><label>{line}</label><pre class="{class}">{content}</pre></li>';
>--    var elem = document.createElement('div'), timer, content, error = [];
>--    var filename = e.filename || href;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p>in <a href="' + filename   + '">' + filename + "</a> ";
>--
>--    var errorline = function (e, i, classname) {
>--        if (e.extract[i]) {
>--            error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1))
>--                               .replace(/\{class\}/, classname)
>--                               .replace(/\{content\}/, e.extract[i]));
>--        }
>--    };
>--
>--    if (e.stack) {
>--        content += '<br/>' + e.stack.split('\n').slice(1).join('<br/>');
>--    } else if (e.extract) {
>--        errorline(e, 0, '');
>--        errorline(e, 1, 'line');
>--        errorline(e, 2, '');
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--                    '<ul>' + error.join('') + '</ul>';
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #dd6666;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.line {',
>--            'color: #ff0000;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.2.1.min.js b/dist/less-1.2.1.min.js
>-deleted file mode 100644
>-index 89b76377c32d01c8cb38bc447e5e6d435b109cd2..0000000000000000000000000000000000000000
>---- a/dist/less-1.2.1.min.js
>-+++ /dev/null
>-@@ -1,9 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.2.1
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function(a,b){function c(b){return a.less[b.split("/")[1]]}function m(){var a=document.getElementsByTagName("style");for(var b=0;b<a.length;b++)a[b].type.match(k)&&(new d.Parser).parse(a[b].innerHTML||"",function(c,d){var e=d.toCSS(),f=a[b];f.type="text/css",f.styleSheet?f.styleSheet.cssText=e:f.innerHTML=e})}function n(a,b){for(var c=0;c<d.sheets.length;c++)o(d.sheets[c],a,b,d.sheets.length-(c+1))}function o(b,c,e,f){var g=a.location.href.replace(/[#?].*$/,""),i=b.href.replace(/\?.*$/,""),j=h&&h.getItem(i),k=h&&h.getItem(i+":timestamp"),l={css:j,timestamp:k};/^(https?|file):/.test(i)||(i.charAt(0)=="/"?i=a.location.protocol+"//"+a.location.host+i:i=g.slice(0,g.lastIndexOf("/")+1)+i);var m=i.match(/([^\/]+)$/)[1];s(b.href,b.type,function(a,g){if(!e&&l&&g&&(new Date(g)).valueOf()===(new Date(l.timestamp)).valueOf())r(l.css,b),c(null,b,{local:!0,remaining:f});else try{(new d.Parser({optimization:d.optimization,paths:[i.replace(/[\w\.-]+$/,"")],mime:b.type,filename:m})).parse(a,function(d,e){if(d)return w(d,i);try{c(d,e,a,b,{local:!1,lastModified:g,remaining:f}),u(document.getElementById("less-error-message:"+q(i)))}catch(d){w(d,i)}})}catch(h){w(h,i)}},function(a,b){throw new Error("Couldn't load "+b+" ("+a+")")})}function q(a){return a.replace(/^[a-z]+:\/\/?[^\/]+/,"").replace(/^\//,"").replace(/\?.*$/,"").replace(/\.[^\.\/]+$/,"").replace(/[^\.\w-]+/g,"-").replace(/\./g,":")}function r(a,b,c){var d,e=b.href?b.href.replace(/\?.*$/,""):"",f="less:"+(b.title||q(e));(d=document.getElementById(f))===null&&(d=document.createElement("style"),d.type="text/css",d.media=b.media||"screen",d.id=f,document.getElementsByTagName("head")[0].appendChild(d));if(d.styleSheet)try{d.styleSheet.cssText=a}catch(g){throw new Error("Couldn't reassign styleSheet.cssText.")}else(function(a){d.childNodes.length>0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&h&&(v("saving "+e+" to cache."),h.setItem(e,a),h.setItem(e+":timestamp",c))}function s(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var f=t(),h=g?!1:d.async;typeof f.overrideMimeType=="function"&&f.overrideMimeType("text/css"),f.open("GET",a,h),f.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),f.send(null),g?f.status===0||f.status>=200&&f.status<300?c(f.responseText):e(f.status,a):h?f.onreadystatechange=function(){f.readyState==4&&i(f,c,e)}:i(f,c,e)}function t(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return v("browser doesn't support AJAX."),null}}function u(a){return a&&a.parentNode.removeChild(a)}function v(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function w(a,b){var c="less-error-message:"+q(b),e='<li><label>{line}</label><pre class="{class}">{content}</pre></li>',f=document.createElement("div"),g,h,i=[],j=a.filename||b;f.id=c,f.className="less-error-message",h="<h3>"+(a.message||"There is an error in your .less file")+"</h3>"+'<p>in <a href="'+j+'">'+j+"</a> ";var k=function(a,b,c){a.extract[b]&&i.push(e.replace(/\{line\}/,parseInt(a.line)+(b-1)).replace(/\{class\}/,c).replace(/\{content\}/,a.extract[b]))};a.stack?h+="<br/>"+a.stack.split("\n").slice(1).join("<br/>"):a.extract&&(k(a,0,""),k(a,1,"line"),k(a,2,""),h+="on line "+a.line+", column "+(a.column+1)+":</p>"+"<ul>"+i.join("")+"</ul>"),f.innerHTML=h,r([".less-error-message ul, .less-error-message li {","list-style-type: none;","margin-right: 15px;","padding: 4px 0;","margin: 0;","}",".less-error-message label {","font-size: 12px;","margin-right: 15px;","padding: 4px 0;","color: 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>-\ No newline at end of file
>-diff --git a/dist/less-1.2.2.js b/dist/less-1.2.2.js
>-deleted file mode 100644
>-index 4db265285f96746386af87f2a8e19d16488fa1f2..0000000000000000000000000000000000000000
>---- a/dist/less-1.2.2.js
>-+++ /dev/null
>-@@ -1,3337 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.2.2
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--// amd.js
>--//
>--// Define Less as an AMD module.
>--if (typeof define === "function" && define.amd) {
>--    define("less", [], function () { return less; } );
>--}
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
>--    // Rhino
>--    // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
>--    if (typeof(window) === 'undefined') { less = {} }
>--    else                                { less = window.less = {} }
>--    tree = less.tree = {};
>--    less.mode = 'rhino';
>--} else if (typeof(window) === 'undefined') {
>--    // Node.js
>--    less = exports,
>--    tree = require('./tree');
>--    less.mode = 'node';
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--    less.mode = 'browser';
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        contents: {},                   // Holds the imported file contents
>--        mime:  env && env.mime,         // MIME type of .less files
>--        error: null,                    // Error in parsing/evaluating an import
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (e, root, contents) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--                that.contents[path] = contents;
>--
>--                if (e && !that.error) { that.error = e }
>--                callback(e, root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    function expect(arg, msg) {
>--        var result = $(arg);
>--        if (! result) {
>--            error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'"
>--                                                   : "unexpected token"));
>--        } else {
>--            return result;
>--        }
>--    }
>--
>--    function error(msg, type) {
>--        throw { index: i, type: type || 'Syntax', message: msg };
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    function basename(pathname) {
>--        if (less.mode === 'node') {
>--            return require('path').basename(pathname);
>--        } else {
>--            return pathname.match(/[^\/]+$/)[0];
>--        }
>--    }
>--
>--    function getInput(e, env) {
>--        if (e.filename && env.filename && (e.filename !== env.filename)) {
>--            return parser.imports.contents[basename(e.filename)];
>--        } else {
>--            return input;
>--        }
>--    }
>--
>--    function getLocation(index, input) {
>--        for (var n = index, column = -1;
>--                 n >= 0 && input.charAt(n) !== '\n';
>--                 n--) { column++ }
>--
>--        return { line:   typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null,
>--                 column: column };
>--    }
>--
>--    function LessError(e, env) {
>--        var input = getInput(e, env),
>--            loc = getLocation(e.index, input),
>--            line = loc.line,
>--            col  = loc.column,
>--            lines = input.split('\n');
>--
>--        this.type = e.type || 'Syntax';
>--        this.message = e.message;
>--        this.filename = e.filename || env.filename;
>--        this.index = e.index;
>--        this.line = typeof(line) === 'number' ? line + 1 : null;
>--        this.callLine = e.call && (getLocation(e.call, input) + 1);
>--        this.callExtract = lines[getLocation(e.call, input)];
>--        this.stack = e.stack;
>--        this.column = col;
>--        this.extract = [
>--            lines[line - 1],
>--            lines[line],
>--            lines[line + 1]
>--        ];
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/\\]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = string.lastIndex = i;
>--
>--                    if (match = string.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                            c = input.charAt(i);
>--                        }
>--                    }
>--
>--                    if (!inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    switch (c) {
>--                        case '{': if (! inParam) { level ++;        chunk.push(c);                           break }
>--                        case '}': if (! inParam) { level --;        chunk.push(c); chunks[++j] = chunk = []; break }
>--                        case '(': if (! inParam) { inParam = true;  chunk.push(c);                           break }
>--                        case ')': if (  inParam) { inParam = false; chunk.push(c);                           break }
>--                        default:                                    chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    error = new(LessError)({
>--                        index: i,
>--                        type: 'Parse',
>--                        message: "missing closing `}`",
>--                        filename: env.filename
>--                    }, env);
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            if (error) {
>--                return callback(error);
>--            }
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            try {
>--                root = new(tree.Ruleset)([], $(this.parsers.primary));
>--                root.root = true;
>--            } catch (e) {
>--                return callback(new(LessError)(e, env));
>--            }
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [], importError;
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        throw new(LessError)(e, env);
>--                    }
>--
>--                    if ((importError = parser.imports.error)) { // Check if there was an error during importing
>--                        if (importError instanceof LessError) throw importError;
>--                        else                                  throw new(LessError)(importError, env);
>--                    }
>--
>--                    if (options.yuicompress && less.mode === 'node') {
>--                        return require('./cssmin').compressor.cssmin(css);
>--                    } else if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    type: "Parse",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--
>--                    if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { 
>--                        if (tree.colors.hasOwnProperty(k)) {
>--                            // detect named color
>--                            return new(tree.Color)(tree.colors[k].slice(1));
>--                        } else {
>--                            return new(tree.Keyword)(k);
>--                        }
>--                    }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index, env.filename) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.entities.assignment) || $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                // Assignments are argument entities for calls.
>--                // They are present in ie filter properties as shown below.
>--                //
>--                //     filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
>--                //
>--
>--                assignment: function () {
>--                    var key, value;
>--                    if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) {
>--                        return new(tree.Assignment)(key, value);
>--                    }
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--
>--                    expect(')');
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index, env.filename);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i), important = false;
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e, i));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if ($(this.important)) {
>--                        important = true;
>--                    }
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index, env.filename, important);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value, cond;
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    save();
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    value = expect(this.expression, 'expected expression');
>--                                    params.push({ name: param.name, value: value });
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        expect(')');
>--
>--                        if ($(/^when/)) { // Guard
>--                            cond = expect(this.conditions, 'expected condition');
>--                        }
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset, cond);
>--                        } else {
>--                            restore();
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^$opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    expect(')');
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c, v;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) ||
>--                    $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (! e) {
>--                    $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v));
>--                }
>--
>--                if (e) { return new(tree.Element)(c, e, i) }
>--
>--                if (c.value && c.value.charAt(0) === '&') {
>--                    return new(tree.Element)(c, null, i);
>--                }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === '&') {
>--                    match = '&';
>--                    i++;
>--                    if(input.charAt(i) === ' ') {
>--                        match = '& ';
>--                    }
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(match);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                while (s = $(this.selector)) {
>--                    selectors.push(s);
>--                    $(this.comment);
>--                    if (! $(',')) { break }
>--                    $(this.comment);
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path, features, index = i;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url))) {
>--                    features = $(this.mediaFeatures);
>--                    if ($(';')) {
>--                        return new(tree.Import)(path, imports, features, index);
>--                    }
>--                }
>--            },
>--
>--            mediaFeature: function () {
>--                var nodes = [];
>--
>--                do {
>--                    if (e = $(this.entities.keyword)) {
>--                        nodes.push(e);
>--                    } else if ($('(')) {
>--                        p = $(this.property);
>--                        e = $(this.entity);
>--                        if ($(')')) {
>--                            if (p && e) {
>--                                nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true)));
>--                            } else if (e) {
>--                                nodes.push(new(tree.Paren)(e));
>--                            } else {
>--                                return null;
>--                            }
>--                        } else { return null }
>--                    }
>--                } while (e);
>--
>--                if (nodes.length > 0) {
>--                    return new(tree.Expression)(nodes);
>--                }
>--            },
>--
>--            mediaFeatures: function () {
>--                var f, features = [];
>--                while (f = $(this.mediaFeature)) {
>--                    features.push(f);
>--                    if (! $(',')) { break }
>--                }
>--                return features.length > 0 ? features : null;
>--            },
>--
>--            media: function () {
>--                var features;
>--
>--                if ($(/^@media/)) {
>--                    features = $(this.mediaFeatures);
>--
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)('@media', rules, features);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types, e, nodes;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import']) || $(this.media)) {
>--                    return value;
>--                } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            conditions: function () {
>--                var a, b, index = i, condition;
>--
>--                if (a = $(this.condition)) {
>--                    while ($(',') && (b = $(this.condition))) {
>--                        condition = new(tree.Condition)('or', condition || a, b, index);
>--                    }
>--                    return condition || a;
>--                }
>--            },
>--            condition: function () {
>--                var a, b, c, op, index = i, negate = false;
>--
>--                if ($(/^not/)) { negate = true }
>--                expect('(');
>--                if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                    if (op = $(/^(?:>=|=<|[<=>])/)) {
>--                        if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                            c = new(tree.Condition)(op, a, b, index, negate);
>--                        } else {
>--                            error('expected expression');
>--                        }
>--                    } else {
>--                        c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate);
>--                    }
>--                    expect(')');
>--                    return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (less.mode === 'browser' || less.mode === 'rhino') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) {
>--            if (e && typeof(env.errback) === "function") {
>--                env.errback.call(null, path, paths, callback, env);
>--            } else {
>--                callback.apply(null, arguments);
>--            }
>--        }, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fade: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a = amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        return this._math('round', n);
>--    },
>--    ceil: function (n) {
>--        return this._math('ceil', n);
>--    },
>--    floor: function (n) {
>--        return this._math('floor', n);
>--    },
>--    _math: function (fn, n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math[fn](number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math[fn](n);
>--        } else {
>--            throw { type: "Argument", message: "argument must be a number" };
>--        }
>--    },
>--    argb: function (color) {
>--        return new(tree.Anonymous)(color.toARGB());
>--
>--    },
>--    percentage: function (n) {
>--        return new(tree.Dimension)(n.value * 100, '%');
>--    },
>--    color: function (n) {
>--        if (n instanceof tree.Quoted) {
>--            return new(tree.Color)(n.value.slice(1));
>--        } else {
>--            throw { type: "Argument", message: "argument must be a string" };
>--        }
>--    },
>--    iscolor: function (n) {
>--        return this._isa(n, tree.Color);
>--    },
>--    isnumber: function (n) {
>--        return this._isa(n, tree.Dimension);
>--    },
>--    isstring: function (n) {
>--        return this._isa(n, tree.Quoted);
>--    },
>--    iskeyword: function (n) {
>--        return this._isa(n, tree.Keyword);
>--    },
>--    isurl: function (n) {
>--        return this._isa(n, tree.URL);
>--    },
>--    ispixel: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False;
>--    },
>--    ispercentage: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False;
>--    },
>--    isem: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False;
>--    },
>--    _isa: function (n, Type) {
>--        return (n instanceof Type) ? tree.True : tree.False;
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('./tree'));
>--(function (tree) {
>--    tree.colors = {
>--        'aliceblue':'#f0f8ff',
>--        'antiquewhite':'#faebd7',
>--        'aqua':'#00ffff',
>--        'aquamarine':'#7fffd4',
>--        'azure':'#f0ffff',
>--        'beige':'#f5f5dc',
>--        'bisque':'#ffe4c4',
>--        'black':'#000000',
>--        'blanchedalmond':'#ffebcd',
>--        'blue':'#0000ff',
>--        'blueviolet':'#8a2be2',
>--        'brown':'#a52a2a',
>--        'burlywood':'#deb887',
>--        'cadetblue':'#5f9ea0',
>--        'chartreuse':'#7fff00',
>--        'chocolate':'#d2691e',
>--        'coral':'#ff7f50',
>--        'cornflowerblue':'#6495ed',
>--        'cornsilk':'#fff8dc',
>--        'crimson':'#dc143c',
>--        'cyan':'#00ffff',
>--        'darkblue':'#00008b',
>--        'darkcyan':'#008b8b',
>--        'darkgoldenrod':'#b8860b',
>--        'darkgray':'#a9a9a9',
>--        'darkgrey':'#a9a9a9',
>--        'darkgreen':'#006400',
>--        'darkkhaki':'#bdb76b',
>--        'darkmagenta':'#8b008b',
>--        'darkolivegreen':'#556b2f',
>--        'darkorange':'#ff8c00',
>--        'darkorchid':'#9932cc',
>--        'darkred':'#8b0000',
>--        'darksalmon':'#e9967a',
>--        'darkseagreen':'#8fbc8f',
>--        'darkslateblue':'#483d8b',
>--        'darkslategray':'#2f4f4f',
>--        'darkslategrey':'#2f4f4f',
>--        'darkturquoise':'#00ced1',
>--        'darkviolet':'#9400d3',
>--        'deeppink':'#ff1493',
>--        'deepskyblue':'#00bfff',
>--        'dimgray':'#696969',
>--        'dimgrey':'#696969',
>--        'dodgerblue':'#1e90ff',
>--        'firebrick':'#b22222',
>--        'floralwhite':'#fffaf0',
>--        'forestgreen':'#228b22',
>--        'fuchsia':'#ff00ff',
>--        'gainsboro':'#dcdcdc',
>--        'ghostwhite':'#f8f8ff',
>--        'gold':'#ffd700',
>--        'goldenrod':'#daa520',
>--        'gray':'#808080',
>--        'grey':'#808080',
>--        'green':'#008000',
>--        'greenyellow':'#adff2f',
>--        'honeydew':'#f0fff0',
>--        'hotpink':'#ff69b4',
>--        'indianred':'#cd5c5c',
>--        'indigo':'#4b0082',
>--        'ivory':'#fffff0',
>--        'khaki':'#f0e68c',
>--        'lavender':'#e6e6fa',
>--        'lavenderblush':'#fff0f5',
>--        'lawngreen':'#7cfc00',
>--        'lemonchiffon':'#fffacd',
>--        'lightblue':'#add8e6',
>--        'lightcoral':'#f08080',
>--        'lightcyan':'#e0ffff',
>--        'lightgoldenrodyellow':'#fafad2',
>--        'lightgray':'#d3d3d3',
>--        'lightgrey':'#d3d3d3',
>--        'lightgreen':'#90ee90',
>--        'lightpink':'#ffb6c1',
>--        'lightsalmon':'#ffa07a',
>--        'lightseagreen':'#20b2aa',
>--        'lightskyblue':'#87cefa',
>--        'lightslategray':'#778899',
>--        'lightslategrey':'#778899',
>--        'lightsteelblue':'#b0c4de',
>--        'lightyellow':'#ffffe0',
>--        'lime':'#00ff00',
>--        'limegreen':'#32cd32',
>--        'linen':'#faf0e6',
>--        'magenta':'#ff00ff',
>--        'maroon':'#800000',
>--        'mediumaquamarine':'#66cdaa',
>--        'mediumblue':'#0000cd',
>--        'mediumorchid':'#ba55d3',
>--        'mediumpurple':'#9370d8',
>--        'mediumseagreen':'#3cb371',
>--        'mediumslateblue':'#7b68ee',
>--        'mediumspringgreen':'#00fa9a',
>--        'mediumturquoise':'#48d1cc',
>--        'mediumvioletred':'#c71585',
>--        'midnightblue':'#191970',
>--        'mintcream':'#f5fffa',
>--        'mistyrose':'#ffe4e1',
>--        'moccasin':'#ffe4b5',
>--        'navajowhite':'#ffdead',
>--        'navy':'#000080',
>--        'oldlace':'#fdf5e6',
>--        'olive':'#808000',
>--        'olivedrab':'#6b8e23',
>--        'orange':'#ffa500',
>--        'orangered':'#ff4500',
>--        'orchid':'#da70d6',
>--        'palegoldenrod':'#eee8aa',
>--        'palegreen':'#98fb98',
>--        'paleturquoise':'#afeeee',
>--        'palevioletred':'#d87093',
>--        'papayawhip':'#ffefd5',
>--        'peachpuff':'#ffdab9',
>--        'peru':'#cd853f',
>--        'pink':'#ffc0cb',
>--        'plum':'#dda0dd',
>--        'powderblue':'#b0e0e6',
>--        'purple':'#800080',
>--        'red':'#ff0000',
>--        'rosybrown':'#bc8f8f',
>--        'royalblue':'#4169e1',
>--        'saddlebrown':'#8b4513',
>--        'salmon':'#fa8072',
>--        'sandybrown':'#f4a460',
>--        'seagreen':'#2e8b57',
>--        'seashell':'#fff5ee',
>--        'sienna':'#a0522d',
>--        'silver':'#c0c0c0',
>--        'skyblue':'#87ceeb',
>--        'slateblue':'#6a5acd',
>--        'slategray':'#708090',
>--        'slategrey':'#708090',
>--        'snow':'#fffafa',
>--        'springgreen':'#00ff7f',
>--        'steelblue':'#4682b4',
>--        'tan':'#d2b48c',
>--        'teal':'#008080',
>--        'thistle':'#d8bfd8',
>--        'tomato':'#ff6347',
>--        'turquoise':'#40e0d0',
>--        'violet':'#ee82ee',
>--        'wheat':'#f5deb3',
>--        'white':'#ffffff',
>--        'whitesmoke':'#f5f5f5',
>--        'yellow':'#ffff00',
>--        'yellowgreen':'#9acd32'
>--    };
>--})(require('./tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Assignment = function (key, val) {
>--    this.key = key;
>--    this.value = val;
>--};
>--tree.Assignment.prototype = {
>--    toCSS: function () {
>--        return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value);
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index, filename) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--    this.filename = filename;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { type: e.type || "Runtime",
>--                        message: "error evaluating function `" + this.name + "`" +
>--                                 (e.message ? ': ' + e.message : ''),
>--                        index: this.index, filename: this.filename };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    },
>--    toARGB: function () {
>--        var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
>--        return '#' + argb.map(function (i) {
>--            i = Math.round(i);
>--            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--            return i.length === 1 ? '0' + i : i;
>--        }).join('');
>--    }
>--};
>--
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Condition = function (op, l, r, i, negate) {
>--    this.op = op.trim();
>--    this.lvalue = l;
>--    this.rvalue = r;
>--    this.index = i;
>--    this.negate = negate;
>--};
>--tree.Condition.prototype.eval = function (env) {
>--    var a = this.lvalue.eval(env),
>--        b = this.rvalue.eval(env);
>--
>--    var i = this.index, result;
>--
>--    var result = (function (op) {
>--        switch (op) {
>--            case 'and':
>--                return a && b;
>--            case 'or':
>--                return a || b;
>--            default:
>--                if (a.compare) {
>--                    result = a.compare(b);
>--                } else if (b.compare) {
>--                    result = b.compare(a);
>--                } else {
>--                    throw { type: "Type",
>--                            message: "Unable to perform comparison",
>--                            index: i };
>--                }
>--                switch (result) {
>--                    case -1: return op === '<' || op === '=<';
>--                    case  0: return op === '=' || op === '>=' || op === '=<';
>--                    case  1: return op === '>' || op === '>=';
>--                }
>--        }
>--    })(this.op);
>--    return this.negate ? !result : result;
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    },
>--
>--    // TODO: Perform unit conversion before comparing
>--    compare: function (other) {
>--        if (other instanceof tree.Dimension) {
>--            if (other.value > this.value) {
>--                return -1;
>--            } else if (other.value < this.value) {
>--                return 1;
>--            } else {
>--                return 0;
>--            }
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value, features) {
>--    this.name = name;
>--    this.features = features && new(tree.Value)(features);
>--
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--        this.ruleset.allowImports = true;
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        var features = this.features ? ' ' + this.features.toCSS(env) : '';
>--
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + features + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        this.features = this.features && this.features.eval(env);
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value, index) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--
>--    if (typeof(value) === 'string') {
>--        this.value = value.trim();
>--    } else if (value) {
>--        this.value = value;
>--    } else {
>--        this.value = "";
>--    }
>--    this.index = index;
>--};
>--tree.Element.prototype.eval = function (env) {
>--    return new(tree.Element)(this.combinator,
>--                             this.value.eval ? this.value.eval(env) : this.value,
>--                             this.index);
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value);
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else if (value === '& ') {
>--        this.value = '& ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        '& ' : ' ',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS ? e.toCSS(env) : '';
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports, features, index) {
>--    var that = this;
>--
>--    this.index = index;
>--    this._path = path;
>--    this.features = features && new(tree.Value)(features);
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css(\?.*)?$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (e, root) {
>--            if (e) { e.index = index }
>--            that.root = root || new(tree.Ruleset)([], []);
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function (env) {
>--        var features = this.features ? ' ' + this.features.toCSS(env) : '';
>--
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + features + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset, features = this.features && this.features.eval(env);
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)([], this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value },
>--    compare: function (other) {
>--        if (other instanceof tree.Keyword) {
>--            return other.value === this.value ? 0 : 1;
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--tree.True = new(tree.Keyword)('true');
>--tree.False = new(tree.Keyword)('false');
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index, filename, important) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--    this.filename = filename;
>--    this.important = important;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments, this.important).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, filename: this.filename, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { type:    'Runtime',
>--                            message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index, filename: this.filename };
>--                }
>--            }
>--        }
>--        throw { type: 'Name',
>--                message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index, filename: this.filename };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules, condition) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.condition = condition;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    evalParams: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []);
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { type: 'Runtime', message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        return frame;
>--    },
>--    eval: function (env, args, important) {
>--        var frame = this.evalParams(env, args), context, _arguments = [], rules;
>--
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        rules = important ?
>--            this.rules.map(function (r) {
>--                return new(tree.Rule)(r.name, r.value, '!important', r.index);
>--            }) : this.rules.slice(0);
>--
>--        return new(tree.Ruleset)(null, rules).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len, frame;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--        if (this.condition && !this.condition.eval({
>--            frames: [this.evalParams(env, args)].concat(env.frames)
>--        }))                                                           { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Paren = function (node) {
>--    this.value = node;
>--};
>--tree.Paren.prototype = {
>--    toCSS: function (env) {
>--        return '(' + this.value.toCSS(env) + ')';
>--    },
>--    eval: function (env) {
>--        return new(tree.Paren)(this.value.eval(env));
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return ('value' in v) ? v.value : v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index, inline) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--    this.inline = inline || false;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + (this.inline ? "" : ";");
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name,
>--                          this.value.eval(context),
>--                          this.important,
>--                          this.index, this.inline);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) });
>--        var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--        ruleset.allowImports = this.allowImports;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root || ruleset.allowImports) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > rule.selectors[j].elements.length) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                this.joinSelectors(paths, context, this.selectors);
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join( env.compress ? ',' : ',\n');
>--
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--        var before = [], after = [], beforeElements = [],
>--            afterElements = [], hasParentSelector = false, el;
>--
>--        for (var i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.combinator.value.charAt(0) === '&') {
>--                hasParentSelector = true;
>--            }
>--            if (hasParentSelector) afterElements.push(el);
>--            else                   beforeElements.push(el);
>--        }
>--
>--        if (! hasParentSelector) {
>--            afterElements = beforeElements;
>--            beforeElements = [];
>--        }
>--
>--        if (beforeElements.length > 0) {
>--            before.push(new(tree.Selector)(beforeElements));
>--        }
>--
>--        if (afterElements.length > 0) {
>--            after.push(new(tree.Selector)(afterElements));
>--        }
>--
>--        for (var c = 0; c < context.length; c++) {
>--            paths.push(before.concat(context[c]).concat(after));
>--        }
>--    }
>--};
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    var len  = this.elements.length,
>--        olen = other.elements.length,
>--        max  = Math.min(len, olen);
>--
>--    if (len < olen) {
>--        return false;
>--    } else {
>--        for (var i = 0; i < max; i++) {
>--            if (this.elements[i].value !== other.elements[i].value) {
>--                return false;
>--            }
>--        }
>--    }
>--    return true;
>--};
>--tree.Selector.prototype.eval = function (env) {
>--    return new(tree.Selector)(this.elements.map(function (e) {
>--        return e.eval(env);
>--    }));
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { type: 'Name',
>--                    message: "variable " + name + " is undefined",
>--                    filename: this.file,
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--tree.jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--
>--})(require('./tree'));
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (e, root, _, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (e, root, _, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                var css = tree.toCSS();
>--                var style = styles[i];
>--                style.type = 'text/css';
>--                if (style.styleSheet) {
>--                    style.styleSheet.cssText = css;
>--                } else {
>--                    style.innerHTML = css;
>--                }
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--    var filename = href.match(/([^\/]+)$/)[1];
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, null, data, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type,
>--                    filename: filename
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--    var template = '<li><label>{line}</label><pre class="{class}">{content}</pre></li>';
>--    var elem = document.createElement('div'), timer, content, error = [];
>--    var filename = e.filename || href;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p>in <a href="' + filename   + '">' + filename + "</a> ";
>--
>--    var errorline = function (e, i, classname) {
>--        if (e.extract[i]) {
>--            error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1))
>--                               .replace(/\{class\}/, classname)
>--                               .replace(/\{content\}/, e.extract[i]));
>--        }
>--    };
>--
>--    if (e.stack) {
>--        content += '<br/>' + e.stack.split('\n').slice(1).join('<br/>');
>--    } else if (e.extract) {
>--        errorline(e, 0, '');
>--        errorline(e, 1, 'line');
>--        errorline(e, 2, '');
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--                    '<ul>' + error.join('') + '</ul>';
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #dd6666;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.line {',
>--            'color: #ff0000;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.2.2.min.js b/dist/less-1.2.2.min.js
>-deleted file mode 100644
>-index 55042ecb8f9e42d938c7a3ae4232bd97a17a9805..0000000000000000000000000000000000000000
>---- a/dist/less-1.2.2.min.js
>-+++ /dev/null
>-@@ -1,9 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.2.2
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function(a,b){function c(b){return a.less[b.split("/")[1]]}function m(){var a=document.getElementsByTagName("style");for(var b=0;b<a.length;b++)a[b].type.match(k)&&(new d.Parser).parse(a[b].innerHTML||"",function(c,d){var e=d.toCSS(),f=a[b];f.type="text/css",f.styleSheet?f.styleSheet.cssText=e:f.innerHTML=e})}function n(a,b){for(var c=0;c<d.sheets.length;c++)o(d.sheets[c],a,b,d.sheets.length-(c+1))}function o(b,c,e,f){var g=a.location.href.replace(/[#?].*$/,""),i=b.href.replace(/\?.*$/,""),j=h&&h.getItem(i),k=h&&h.getItem(i+":timestamp"),l={css:j,timestamp:k};/^(https?|file):/.test(i)||(i.charAt(0)=="/"?i=a.location.protocol+"//"+a.location.host+i:i=g.slice(0,g.lastIndexOf("/")+1)+i);var m=i.match(/([^\/]+)$/)[1];s(b.href,b.type,function(a,g){if(!e&&l&&g&&(new Date(g)).valueOf()===(new Date(l.timestamp)).valueOf())r(l.css,b),c(null,null,a,b,{local:!0,remaining:f});else try{(new d.Parser({optimization:d.optimization,paths:[i.replace(/[\w\.-]+$/,"")],mime:b.type,filename:m})).parse(a,function(d,e){if(d)return w(d,i);try{c(d,e,a,b,{local:!1,lastModified:g,remaining:f}),u(document.getElementById("less-error-message:"+q(i)))}catch(d){w(d,i)}})}catch(h){w(h,i)}},function(a,b){throw new Error("Couldn't load "+b+" ("+a+")")})}function q(a){return a.replace(/^[a-z]+:\/\/?[^\/]+/,"").replace(/^\//,"").replace(/\?.*$/,"").replace(/\.[^\.\/]+$/,"").replace(/[^\.\w-]+/g,"-").replace(/\./g,":")}function r(a,b,c){var d,e=b.href?b.href.replace(/\?.*$/,""):"",f="less:"+(b.title||q(e));(d=document.getElementById(f))===null&&(d=document.createElement("style"),d.type="text/css",d.media=b.media||"screen",d.id=f,document.getElementsByTagName("head")[0].appendChild(d));if(d.styleSheet)try{d.styleSheet.cssText=a}catch(g){throw new Error("Couldn't reassign 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>-\ No newline at end of file
>-diff --git a/dist/less-1.3.0.js b/dist/less-1.3.0.js
>-deleted file mode 100644
>-index fce5fb590dd8c13afe7977df00b3ad14ec208526..0000000000000000000000000000000000000000
>---- a/dist/less-1.3.0.js
>-+++ /dev/null
>-@@ -1,3478 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.3.0
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--// amd.js
>--//
>--// Define Less as an AMD module.
>--if (typeof define === "function" && define.amd) {
>--    define("less", [], function () { return less; } );
>--}
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
>--    // Rhino
>--    // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
>--    if (typeof(window) === 'undefined') { less = {} }
>--    else                                { less = window.less = {} }
>--    tree = less.tree = {};
>--    less.mode = 'rhino';
>--} else if (typeof(window) === 'undefined') {
>--    // Node.js
>--    less = exports,
>--    tree = require('./tree');
>--    less.mode = 'node';
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--    less.mode = 'browser';
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        contents: {},                   // Holds the imported file contents
>--        mime:  env && env.mime,         // MIME type of .less files
>--        error: null,                    // Error in parsing/evaluating an import
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (e, root, contents) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--                that.contents[path] = contents;
>--
>--                if (e && !that.error) { that.error = e }
>--                callback(e, root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    function expect(arg, msg) {
>--        var result = $(arg);
>--        if (! result) {
>--            error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'"
>--                                                   : "unexpected token"));
>--        } else {
>--            return result;
>--        }
>--    }
>--
>--    function error(msg, type) {
>--        throw { index: i, type: type || 'Syntax', message: msg };
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    function basename(pathname) {
>--        if (less.mode === 'node') {
>--            return require('path').basename(pathname);
>--        } else {
>--            return pathname.match(/[^\/]+$/)[0];
>--        }
>--    }
>--
>--    function getInput(e, env) {
>--        if (e.filename && env.filename && (e.filename !== env.filename)) {
>--            return parser.imports.contents[basename(e.filename)];
>--        } else {
>--            return input;
>--        }
>--    }
>--
>--    function getLocation(index, input) {
>--        for (var n = index, column = -1;
>--                 n >= 0 && input.charAt(n) !== '\n';
>--                 n--) { column++ }
>--
>--        return { line:   typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null,
>--                 column: column };
>--    }
>--
>--    function LessError(e, env) {
>--        var input = getInput(e, env),
>--            loc = getLocation(e.index, input),
>--            line = loc.line,
>--            col  = loc.column,
>--            lines = input.split('\n');
>--
>--        this.type = e.type || 'Syntax';
>--        this.message = e.message;
>--        this.filename = e.filename || env.filename;
>--        this.index = e.index;
>--        this.line = typeof(line) === 'number' ? line + 1 : null;
>--        this.callLine = e.call && (getLocation(e.call, input).line + 1);
>--        this.callExtract = lines[getLocation(e.call, input).line];
>--        this.stack = e.stack;
>--        this.column = col;
>--        this.extract = [
>--            lines[line - 1],
>--            lines[line],
>--            lines[line + 1]
>--        ];
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/\\]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = string.lastIndex = i;
>--
>--                    if (match = string.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                            c = input.charAt(i);
>--                        }
>--                    }
>--
>--                    if (!inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    switch (c) {
>--                        case '{': if (! inParam) { level ++;        chunk.push(c);                           break }
>--                        case '}': if (! inParam) { level --;        chunk.push(c); chunks[++j] = chunk = []; break }
>--                        case '(': if (! inParam) { inParam = true;  chunk.push(c);                           break }
>--                        case ')': if (  inParam) { inParam = false; chunk.push(c);                           break }
>--                        default:                                    chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    error = new(LessError)({
>--                        index: i,
>--                        type: 'Parse',
>--                        message: "missing closing `}`",
>--                        filename: env.filename
>--                    }, env);
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            if (error) {
>--                return callback(error);
>--            }
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            try {
>--                root = new(tree.Ruleset)([], $(this.parsers.primary));
>--                root.root = true;
>--            } catch (e) {
>--                return callback(new(LessError)(e, env));
>--            }
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [], importError;
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        throw new(LessError)(e, env);
>--                    }
>--
>--                    if ((importError = parser.imports.error)) { // Check if there was an error during importing
>--                        if (importError instanceof LessError) throw importError;
>--                        else                                  throw new(LessError)(importError, env);
>--                    }
>--
>--                    if (options.yuicompress && less.mode === 'node') {
>--                        return require('./cssmin').compressor.cssmin(css);
>--                    } else if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    type: "Parse",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--
>--                    if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { 
>--                        if (tree.colors.hasOwnProperty(k)) {
>--                            // detect named color
>--                            return new(tree.Color)(tree.colors[k].slice(1));
>--                        } else {
>--                            return new(tree.Keyword)(k);
>--                        }
>--                    }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index, env.filename) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.entities.assignment) || $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                // Assignments are argument entities for calls.
>--                // They are present in ie filter properties as shown below.
>--                //
>--                //     filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
>--                //
>--
>--                assignment: function () {
>--                    var key, value;
>--                    if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) {
>--                        return new(tree.Assignment)(key, value);
>--                    }
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--
>--                    expect(')');
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index, env.filename);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i), important = false;
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e, i));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if ($(this.important)) {
>--                        important = true;
>--                    }
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args || [], index, env.filename, important);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value, cond, variadic = false;
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    save();
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        do {
>--                            if (input.charAt(i) === '.' && $(/^\.{3}/)) {
>--                                variadic = true;
>--                                break;
>--                            } else if (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                         || $(this.entities.keyword)) {
>--                                // Variable
>--                                if (param instanceof tree.Variable) {
>--                                    if ($(':')) {
>--                                        value = expect(this.expression, 'expected expression');
>--                                        params.push({ name: param.name, value: value });
>--                                    } else if ($(/^\.{3}/)) {
>--                                        params.push({ name: param.name, variadic: true });
>--                                        variadic = true;
>--                                        break;
>--                                    } else {
>--                                        params.push({ name: param.name });
>--                                    }
>--                                } else {
>--                                    params.push({ value: param });
>--                                }
>--                            } else {
>--                                break;
>--                            }
>--                        } while ($(','))
>--
>--                        expect(')');
>--
>--                        if ($(/^when/)) { // Guard
>--                            cond = expect(this.conditions, 'expected condition');
>--                        }
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic);
>--                        } else {
>--                            restore();
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^$opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    expect(')');
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c, v;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) ||
>--                    $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (! e) {
>--                    $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v));
>--                }
>--
>--                if (e) { return new(tree.Element)(c, e, i) }
>--
>--                if (c.value && c.value.charAt(0) === '&') {
>--                    return new(tree.Element)(c, null, i);
>--                }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === '&') {
>--                    match = '&';
>--                    i++;
>--                    if(input.charAt(i) === ' ') {
>--                        match = '& ';
>--                    }
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(match);
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                if ($('(')) {
>--                    sel = $(this.entity);
>--                    expect(')');
>--                    return new(tree.Selector)([new(tree.Element)('', sel, i)]);
>--                }
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                while (s = $(this.selector)) {
>--                    selectors.push(s);
>--                    $(this.comment);
>--                    if (! $(',')) { break }
>--                    $(this.comment);
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules, env.strictImports);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path, features, index = i;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url))) {
>--                    features = $(this.mediaFeatures);
>--                    if ($(';')) {
>--                        return new(tree.Import)(path, imports, features, index);
>--                    }
>--                }
>--            },
>--
>--            mediaFeature: function () {
>--                var e, p, nodes = [];
>--
>--                do {
>--                    if (e = $(this.entities.keyword)) {
>--                        nodes.push(e);
>--                    } else if ($('(')) {
>--                        p = $(this.property);
>--                        e = $(this.entity);
>--                        if ($(')')) {
>--                            if (p && e) {
>--                                nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true)));
>--                            } else if (e) {
>--                                nodes.push(new(tree.Paren)(e));
>--                            } else {
>--                                return null;
>--                            }
>--                        } else { return null }
>--                    }
>--                } while (e);
>--
>--                if (nodes.length > 0) {
>--                    return new(tree.Expression)(nodes);
>--                }
>--            },
>--
>--            mediaFeatures: function () {
>--                var e, features = [];
>--                
>--                do {
>--                  if (e = $(this.mediaFeature)) {
>--                      features.push(e);
>--                      if (! $(',')) { break }
>--                  } else if (e = $(this.entities.variable)) {
>--                      features.push(e);
>--                      if (! $(',')) { break }
>--                  }
>--                } while (e);
>--                
>--                return features.length > 0 ? features : null;
>--            },
>--
>--            media: function () {
>--                var features, rules;
>--
>--                if ($(/^@media/)) {
>--                    features = $(this.mediaFeatures);
>--
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Media)(rules, features);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types, e, nodes;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import']) || $(this.media)) {
>--                    return value;
>--                } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            conditions: function () {
>--                var a, b, index = i, condition;
>--
>--                if (a = $(this.condition)) {
>--                    while ($(',') && (b = $(this.condition))) {
>--                        condition = new(tree.Condition)('or', condition || a, b, index);
>--                    }
>--                    return condition || a;
>--                }
>--            },
>--            condition: function () {
>--                var a, b, c, op, index = i, negate = false;
>--
>--                if ($(/^not/)) { negate = true }
>--                expect('(');
>--                if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                    if (op = $(/^(?:>=|=<|[<=>])/)) {
>--                        if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                            c = new(tree.Condition)(op, a, b, index, negate);
>--                        } else {
>--                            error('expected expression');
>--                        }
>--                    } else {
>--                        c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate);
>--                    }
>--                    expect(')');
>--                    return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (less.mode === 'browser' || less.mode === 'rhino') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) {
>--            if (e && typeof(env.errback) === "function") {
>--                env.errback.call(null, path, paths, callback, env);
>--            } else {
>--                callback.apply(null, arguments);
>--            }
>--        }, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fade: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a = amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        return this._math('round', n);
>--    },
>--    ceil: function (n) {
>--        return this._math('ceil', n);
>--    },
>--    floor: function (n) {
>--        return this._math('floor', n);
>--    },
>--    _math: function (fn, n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math[fn](number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math[fn](n);
>--        } else {
>--            throw { type: "Argument", message: "argument must be a number" };
>--        }
>--    },
>--    argb: function (color) {
>--        return new(tree.Anonymous)(color.toARGB());
>--
>--    },
>--    percentage: function (n) {
>--        return new(tree.Dimension)(n.value * 100, '%');
>--    },
>--    color: function (n) {
>--        if (n instanceof tree.Quoted) {
>--            return new(tree.Color)(n.value.slice(1));
>--        } else {
>--            throw { type: "Argument", message: "argument must be a string" };
>--        }
>--    },
>--    iscolor: function (n) {
>--        return this._isa(n, tree.Color);
>--    },
>--    isnumber: function (n) {
>--        return this._isa(n, tree.Dimension);
>--    },
>--    isstring: function (n) {
>--        return this._isa(n, tree.Quoted);
>--    },
>--    iskeyword: function (n) {
>--        return this._isa(n, tree.Keyword);
>--    },
>--    isurl: function (n) {
>--        return this._isa(n, tree.URL);
>--    },
>--    ispixel: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False;
>--    },
>--    ispercentage: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False;
>--    },
>--    isem: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False;
>--    },
>--    _isa: function (n, Type) {
>--        return (n instanceof Type) ? tree.True : tree.False;
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('./tree'));
>--(function (tree) {
>--    tree.colors = {
>--        'aliceblue':'#f0f8ff',
>--        'antiquewhite':'#faebd7',
>--        'aqua':'#00ffff',
>--        'aquamarine':'#7fffd4',
>--        'azure':'#f0ffff',
>--        'beige':'#f5f5dc',
>--        'bisque':'#ffe4c4',
>--        'black':'#000000',
>--        'blanchedalmond':'#ffebcd',
>--        'blue':'#0000ff',
>--        'blueviolet':'#8a2be2',
>--        'brown':'#a52a2a',
>--        'burlywood':'#deb887',
>--        'cadetblue':'#5f9ea0',
>--        'chartreuse':'#7fff00',
>--        'chocolate':'#d2691e',
>--        'coral':'#ff7f50',
>--        'cornflowerblue':'#6495ed',
>--        'cornsilk':'#fff8dc',
>--        'crimson':'#dc143c',
>--        'cyan':'#00ffff',
>--        'darkblue':'#00008b',
>--        'darkcyan':'#008b8b',
>--        'darkgoldenrod':'#b8860b',
>--        'darkgray':'#a9a9a9',
>--        'darkgrey':'#a9a9a9',
>--        'darkgreen':'#006400',
>--        'darkkhaki':'#bdb76b',
>--        'darkmagenta':'#8b008b',
>--        'darkolivegreen':'#556b2f',
>--        'darkorange':'#ff8c00',
>--        'darkorchid':'#9932cc',
>--        'darkred':'#8b0000',
>--        'darksalmon':'#e9967a',
>--        'darkseagreen':'#8fbc8f',
>--        'darkslateblue':'#483d8b',
>--        'darkslategray':'#2f4f4f',
>--        'darkslategrey':'#2f4f4f',
>--        'darkturquoise':'#00ced1',
>--        'darkviolet':'#9400d3',
>--        'deeppink':'#ff1493',
>--        'deepskyblue':'#00bfff',
>--        'dimgray':'#696969',
>--        'dimgrey':'#696969',
>--        'dodgerblue':'#1e90ff',
>--        'firebrick':'#b22222',
>--        'floralwhite':'#fffaf0',
>--        'forestgreen':'#228b22',
>--        'fuchsia':'#ff00ff',
>--        'gainsboro':'#dcdcdc',
>--        'ghostwhite':'#f8f8ff',
>--        'gold':'#ffd700',
>--        'goldenrod':'#daa520',
>--        'gray':'#808080',
>--        'grey':'#808080',
>--        'green':'#008000',
>--        'greenyellow':'#adff2f',
>--        'honeydew':'#f0fff0',
>--        'hotpink':'#ff69b4',
>--        'indianred':'#cd5c5c',
>--        'indigo':'#4b0082',
>--        'ivory':'#fffff0',
>--        'khaki':'#f0e68c',
>--        'lavender':'#e6e6fa',
>--        'lavenderblush':'#fff0f5',
>--        'lawngreen':'#7cfc00',
>--        'lemonchiffon':'#fffacd',
>--        'lightblue':'#add8e6',
>--        'lightcoral':'#f08080',
>--        'lightcyan':'#e0ffff',
>--        'lightgoldenrodyellow':'#fafad2',
>--        'lightgray':'#d3d3d3',
>--        'lightgrey':'#d3d3d3',
>--        'lightgreen':'#90ee90',
>--        'lightpink':'#ffb6c1',
>--        'lightsalmon':'#ffa07a',
>--        'lightseagreen':'#20b2aa',
>--        'lightskyblue':'#87cefa',
>--        'lightslategray':'#778899',
>--        'lightslategrey':'#778899',
>--        'lightsteelblue':'#b0c4de',
>--        'lightyellow':'#ffffe0',
>--        'lime':'#00ff00',
>--        'limegreen':'#32cd32',
>--        'linen':'#faf0e6',
>--        'magenta':'#ff00ff',
>--        'maroon':'#800000',
>--        'mediumaquamarine':'#66cdaa',
>--        'mediumblue':'#0000cd',
>--        'mediumorchid':'#ba55d3',
>--        'mediumpurple':'#9370d8',
>--        'mediumseagreen':'#3cb371',
>--        'mediumslateblue':'#7b68ee',
>--        'mediumspringgreen':'#00fa9a',
>--        'mediumturquoise':'#48d1cc',
>--        'mediumvioletred':'#c71585',
>--        'midnightblue':'#191970',
>--        'mintcream':'#f5fffa',
>--        'mistyrose':'#ffe4e1',
>--        'moccasin':'#ffe4b5',
>--        'navajowhite':'#ffdead',
>--        'navy':'#000080',
>--        'oldlace':'#fdf5e6',
>--        'olive':'#808000',
>--        'olivedrab':'#6b8e23',
>--        'orange':'#ffa500',
>--        'orangered':'#ff4500',
>--        'orchid':'#da70d6',
>--        'palegoldenrod':'#eee8aa',
>--        'palegreen':'#98fb98',
>--        'paleturquoise':'#afeeee',
>--        'palevioletred':'#d87093',
>--        'papayawhip':'#ffefd5',
>--        'peachpuff':'#ffdab9',
>--        'peru':'#cd853f',
>--        'pink':'#ffc0cb',
>--        'plum':'#dda0dd',
>--        'powderblue':'#b0e0e6',
>--        'purple':'#800080',
>--        'red':'#ff0000',
>--        'rosybrown':'#bc8f8f',
>--        'royalblue':'#4169e1',
>--        'saddlebrown':'#8b4513',
>--        'salmon':'#fa8072',
>--        'sandybrown':'#f4a460',
>--        'seagreen':'#2e8b57',
>--        'seashell':'#fff5ee',
>--        'sienna':'#a0522d',
>--        'silver':'#c0c0c0',
>--        'skyblue':'#87ceeb',
>--        'slateblue':'#6a5acd',
>--        'slategray':'#708090',
>--        'slategrey':'#708090',
>--        'snow':'#fffafa',
>--        'springgreen':'#00ff7f',
>--        'steelblue':'#4682b4',
>--        'tan':'#d2b48c',
>--        'teal':'#008080',
>--        'thistle':'#d8bfd8',
>--        'tomato':'#ff6347',
>--        'turquoise':'#40e0d0',
>--        'violet':'#ee82ee',
>--        'wheat':'#f5deb3',
>--        'white':'#ffffff',
>--        'whitesmoke':'#f5f5f5',
>--        'yellow':'#ffff00',
>--        'yellowgreen':'#9acd32'
>--    };
>--})(require('./tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Assignment = function (key, val) {
>--    this.key = key;
>--    this.value = val;
>--};
>--tree.Assignment.prototype = {
>--    toCSS: function () {
>--        return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value);
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index, filename) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--    this.filename = filename;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { type: e.type || "Runtime",
>--                        message: "error evaluating function `" + this.name + "`" +
>--                                 (e.message ? ': ' + e.message : ''),
>--                        index: this.index, filename: this.filename };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    },
>--    toARGB: function () {
>--        var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
>--        return '#' + argb.map(function (i) {
>--            i = Math.round(i);
>--            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--            return i.length === 1 ? '0' + i : i;
>--        }).join('');
>--    }
>--};
>--
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Condition = function (op, l, r, i, negate) {
>--    this.op = op.trim();
>--    this.lvalue = l;
>--    this.rvalue = r;
>--    this.index = i;
>--    this.negate = negate;
>--};
>--tree.Condition.prototype.eval = function (env) {
>--    var a = this.lvalue.eval(env),
>--        b = this.rvalue.eval(env);
>--
>--    var i = this.index, result;
>--
>--    var result = (function (op) {
>--        switch (op) {
>--            case 'and':
>--                return a && b;
>--            case 'or':
>--                return a || b;
>--            default:
>--                if (a.compare) {
>--                    result = a.compare(b);
>--                } else if (b.compare) {
>--                    result = b.compare(a);
>--                } else {
>--                    throw { type: "Type",
>--                            message: "Unable to perform comparison",
>--                            index: i };
>--                }
>--                switch (result) {
>--                    case -1: return op === '<' || op === '=<';
>--                    case  0: return op === '=' || op === '>=' || op === '=<';
>--                    case  1: return op === '>' || op === '>=';
>--                }
>--        }
>--    })(this.op);
>--    return this.negate ? !result : result;
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    },
>--
>--    // TODO: Perform unit conversion before comparing
>--    compare: function (other) {
>--        if (other instanceof tree.Dimension) {
>--            if (other.value > this.value) {
>--                return -1;
>--            } else if (other.value < this.value) {
>--                return 1;
>--            } else {
>--                return 0;
>--            }
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value, features) {
>--    this.name = name;
>--
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--        this.ruleset.allowImports = true;
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value, index) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--
>--    if (typeof(value) === 'string') {
>--        this.value = value.trim();
>--    } else if (value) {
>--        this.value = value;
>--    } else {
>--        this.value = "";
>--    }
>--    this.index = index;
>--};
>--tree.Element.prototype.eval = function (env) {
>--    return new(tree.Element)(this.combinator,
>--                             this.value.eval ? this.value.eval(env) : this.value,
>--                             this.index);
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value);
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else if (value === '& ') {
>--        this.value = '& ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        '& ' : ' ',
>--        ':' : ' :',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS ? e.toCSS(env) : '';
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports, features, index) {
>--    var that = this;
>--
>--    this.index = index;
>--    this._path = path;
>--    this.features = features && new(tree.Value)(features);
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css(\?.*)?$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (e, root) {
>--            if (e) { e.index = index }
>--            that.root = root || new(tree.Ruleset)([], []);
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function (env) {
>--        var features = this.features ? ' ' + this.features.toCSS(env) : '';
>--
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + features + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset, features = this.features && this.features.eval(env);
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)([], this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value },
>--    compare: function (other) {
>--        if (other instanceof tree.Keyword) {
>--            return other.value === this.value ? 0 : 1;
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--tree.True = new(tree.Keyword)('true');
>--tree.False = new(tree.Keyword)('false');
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Media = function (value, features) {
>--    var el = new(tree.Element)('&', null, 0),
>--        selectors = [new(tree.Selector)([el])];
>--
>--    this.features = new(tree.Value)(features);
>--    this.ruleset = new(tree.Ruleset)(selectors, value);
>--    this.ruleset.allowImports = true;
>--};
>--tree.Media.prototype = {
>--    toCSS: function (ctx, env) {
>--        var features = this.features.toCSS(env);
>--
>--        this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia);
>--        return '@media ' + features + (env.compress ? '{' : ' {\n  ') +
>--               this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                           (env.compress ? '}': '\n}\n');
>--    },
>--    eval: function (env) {
>--        if (!env.mediaBlocks) {
>--            env.mediaBlocks = [];
>--            env.mediaPath = [];
>--        }
>--        
>--        var blockIndex = env.mediaBlocks.length;
>--        env.mediaPath.push(this);
>--        env.mediaBlocks.push(this);
>--
>--        var media = new(tree.Media)([], []);
>--        media.features = this.features.eval(env);
>--        
>--        env.frames.unshift(this.ruleset);
>--        media.ruleset = this.ruleset.eval(env);
>--        env.frames.shift();
>--        
>--        env.mediaBlocks[blockIndex] = media;
>--        env.mediaPath.pop();
>--
>--        return env.mediaPath.length === 0 ? media.evalTop(env) :
>--                    media.evalNested(env)
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) },
>--
>--    evalTop: function (env) {
>--        var result = this;
>--
>--        // Render all dependent Media blocks.
>--        if (env.mediaBlocks.length > 1) {
>--            var el = new(tree.Element)('&', null, 0);
>--            var selectors = [new(tree.Selector)([el])];
>--            result = new(tree.Ruleset)(selectors, env.mediaBlocks);
>--            result.multiMedia = true;
>--        }
>--
>--        delete env.mediaBlocks;
>--        delete env.mediaPath;
>--
>--        return result;
>--    },
>--    evalNested: function (env) {
>--        var i, value,
>--            path = env.mediaPath.concat([this]);
>--
>--        // Extract the media-query conditions separated with `,` (OR).
>--        for (i = 0; i < path.length; i++) {
>--            value = path[i].features instanceof tree.Value ?
>--                        path[i].features.value : path[i].features;
>--            path[i] = Array.isArray(value) ? value : [value];
>--        }
>--
>--        // Trace all permutations to generate the resulting media-query.
>--        //
>--        // (a, b and c) with nested (d, e) ->
>--        //    a and d
>--        //    a and e
>--        //    b and c and d
>--        //    b and c and e
>--        this.features = new(tree.Value)(this.permute(path).map(function (path) {
>--            path = path.map(function (fragment) {
>--                return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment);
>--            });
>--
>--            for(i = path.length - 1; i > 0; i--) {
>--                path.splice(i, 0, new(tree.Anonymous)("and"));
>--            }
>--
>--            return new(tree.Expression)(path);
>--        }));
>--
>--        // Fake a tree-node that doesn't output anything.
>--        return new(tree.Ruleset)([], []);
>--    },
>--    permute: function (arr) {
>--      if (arr.length === 0) {
>--          return [];
>--      } else if (arr.length === 1) {
>--          return arr[0];
>--      } else {
>--          var result = [];
>--          var rest = this.permute(arr.slice(1));
>--          for (var i = 0; i < rest.length; i++) {
>--              for (var j = 0; j < arr[0].length; j++) {
>--                  result.push([arr[0][j]].concat(rest[i]));
>--              }
>--          }
>--          return result;
>--      }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index, filename, important) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--    this.filename = filename;
>--    this.important = important;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments, this.important).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { type:    'Runtime',
>--                            message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index, filename: this.filename };
>--                }
>--            }
>--        }
>--        throw { type: 'Name',
>--                message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index, filename: this.filename };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules, condition, variadic) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.condition = condition;
>--    this.variadic = variadic;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    evalParams: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), varargs;
>--
>--        for (var i = 0, val, name; i < this.params.length; i++) {
>--            if (name = this.params[i].name) {
>--                if (this.params[i].variadic && args) {
>--                    varargs = [];
>--                    for (var j = i; j < args.length; j++) {
>--                        varargs.push(args[j].eval(env));
>--                    }
>--                    frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env)));
>--                } else if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(name, val.eval(env)));
>--                } else {
>--                    throw { type: 'Runtime', message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        return frame;
>--    },
>--    eval: function (env, args, important) {
>--        var frame = this.evalParams(env, args), context, _arguments = [], rules, start;
>--
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        rules = important ?
>--            this.rules.map(function (r) {
>--                return new(tree.Rule)(r.name, r.value, '!important', r.index);
>--            }) : this.rules.slice(0);
>--
>--        return new(tree.Ruleset)(null, rules).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len, frame;
>--
>--        if (! this.variadic) {
>--            if (argsLength < this.required)                               { return false }
>--            if (argsLength > this.params.length)                          { return false }
>--            if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--        }
>--
>--        if (this.condition && !this.condition.eval({
>--            frames: [this.evalParams(env, args)].concat(env.frames)
>--        }))                                                           { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Paren = function (node) {
>--    this.value = node;
>--};
>--tree.Paren.prototype = {
>--    toCSS: function (env) {
>--        return '(' + this.value.toCSS(env) + ')';
>--    },
>--    eval: function (env) {
>--        return new(tree.Paren)(this.value.eval(env));
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return ('value' in v) ? v.value : v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index, inline) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--    this.inline = inline || false;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + (this.inline ? "" : ";");
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name,
>--                          this.value.eval(context),
>--                          this.important,
>--                          this.index, this.inline);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules, strictImports) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.strictImports = strictImports;
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) });
>--        var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports);
>--
>--        ruleset.root = this.root;
>--        ruleset.allowImports = this.allowImports;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > rule.selectors[j].elements.length) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                this.joinSelectors(paths, context, this.selectors);
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join( env.compress ? ',' : ',\n');
>--
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--        var before = [], after = [], beforeElements = [],
>--            afterElements = [], hasParentSelector = false, el;
>--
>--        for (var i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.combinator.value.charAt(0) === '&') {
>--                hasParentSelector = true;
>--            }
>--            if (hasParentSelector) afterElements.push(el);
>--            else                   beforeElements.push(el);
>--        }
>--
>--        if (! hasParentSelector) {
>--            afterElements = beforeElements;
>--            beforeElements = [];
>--        }
>--
>--        if (beforeElements.length > 0) {
>--            before.push(new(tree.Selector)(beforeElements));
>--        }
>--
>--        if (afterElements.length > 0) {
>--            after.push(new(tree.Selector)(afterElements));
>--        }
>--
>--        for (var c = 0; c < context.length; c++) {
>--            paths.push(before.concat(context[c]).concat(after));
>--        }
>--    }
>--};
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    var len  = this.elements.length,
>--        olen = other.elements.length,
>--        max  = Math.min(len, olen);
>--
>--    if (len < olen) {
>--        return false;
>--    } else {
>--        for (var i = 0; i < max; i++) {
>--            if (this.elements[i].value !== other.elements[i].value) {
>--                return false;
>--            }
>--        }
>--    }
>--    return true;
>--};
>--tree.Selector.prototype.eval = function (env) {
>--    return new(tree.Selector)(this.elements.map(function (e) {
>--        return e.eval(env);
>--    }));
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { type: 'Name',
>--                    message: "variable " + name + " is undefined",
>--                    filename: this.file,
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--tree.jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--
>--})(require('./tree'));
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = (location.protocol === 'file:'    ||
>--                      location.protocol === 'chrome:'  ||
>--                      location.protocol === 'chrome-extension:'  ||
>--                      location.protocol === 'resource:');
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (e, root, _, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (e, root, _, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) {
>--                var css = tree.toCSS();
>--                var style = styles[i];
>--                style.type = 'text/css';
>--                if (style.styleSheet) {
>--                    style.styleSheet.cssText = css;
>--                } else {
>--                    style.innerHTML = css;
>--                }
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^(https?|file):/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--    var filename = href.match(/([^\/]+)$/)[1];
>--
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, null, data, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type,
>--                    filename: filename
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        css.media = sheet.media || 'screen';
>--        css.id = id;
>--        document.getElementsByTagName('head')[0].appendChild(css);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        cache.setItem(href, styles);
>--        cache.setItem(href + ':timestamp', lastModified);
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? false : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol) {
>--        if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--    var template = '<li><label>{line}</label><pre class="{class}">{content}</pre></li>';
>--    var elem = document.createElement('div'), timer, content, error = [];
>--    var filename = e.filename || href;
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p>in <a href="' + filename   + '">' + filename + "</a> ";
>--
>--    var errorline = function (e, i, classname) {
>--        if (e.extract[i]) {
>--            error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1))
>--                               .replace(/\{class\}/, classname)
>--                               .replace(/\{content\}/, e.extract[i]));
>--        }
>--    };
>--
>--    if (e.stack) {
>--        content += '<br/>' + e.stack.split('\n').slice(1).join('<br/>');
>--    } else if (e.extract) {
>--        errorline(e, 0, '');
>--        errorline(e, 1, 'line');
>--        errorline(e, 2, '');
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--                    '<ul>' + error.join('') + '</ul>';
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #dd6666;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.line {',
>--            'color: #ff0000;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--})(window);
>-diff --git a/dist/less-1.3.0.min.js b/dist/less-1.3.0.min.js
>-deleted file mode 100644
>-index 309bf550db1c213499f08df78393d54c2fedbbf1..0000000000000000000000000000000000000000
>---- a/dist/less-1.3.0.min.js
>-+++ /dev/null
>-@@ -1,9 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.3.0
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
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>-\ No newline at end of file
>-diff --git a/dist/less-1.3.1.js b/dist/less-1.3.1.js
>-deleted file mode 100644
>-index 0d2a48c158676a7a6a7119688a6b0ec6e8156a34..0000000000000000000000000000000000000000
>---- a/dist/less-1.3.1.js
>-+++ /dev/null
>-@@ -1,4011 +0,0 @@
>--//
>--// LESS - Leaner CSS v1.3.1
>--// http://lesscss.org
>--// 
>--// Copyright (c) 2009-2011, Alexis Sellier
>--// Licensed under the Apache 2.0 License.
>--//
>--(function (window, undefined) {
>--//
>--// Stub out `require` in the browser
>--//
>--function require(arg) {
>--    return window.less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
>--    // Rhino
>--    // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
>--    if (typeof(window) === 'undefined') { less = {} }
>--    else                                { less = window.less = {} }
>--    tree = less.tree = {};
>--    less.mode = 'rhino';
>--} else if (typeof(window) === 'undefined') {
>--    // Node.js
>--    less = exports,
>--    tree = require('./tree');
>--    less.mode = 'node';
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--    less.mode = 'browser';
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // Top parser on an import tree must be sure there is one "env"
>--    // which will then be passed arround by reference.
>--    var env = env || { };
>--    if (!env.contents) { env.contents={}; }  // env.contents must be passed arround with top env
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        contents: env.contents,         // Holds the imported file contents
>--        mime:  env && env.mime,         // MIME type of .less files
>--        error: null,                    // Error in parsing/evaluating an import
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (e, root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--
>--                var imported = path in that.files;
>--
>--                that.files[path] = root;                        // Store the root
>--
>--                if (e && !that.error) { that.error = e }
>--
>--                callback(e, root, imported);
>--
>--                if (that.queue.length === 0) { finish(e) }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    function isWhitespace(c) {
>--        // Could change to \s?
>--        var code = c.charCodeAt(0);
>--        return code === 32 || code === 10 || code === 9;
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, index, k;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            skipWhitespace(length);
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    function skipWhitespace(length) {
>--        var oldi = i, oldj = j,
>--            endIndex = i + chunks[j].length,
>--            mem = i += length;
>--
>--        while (i < endIndex) {
>--            if (! isWhitespace(input.charAt(i))) { break }
>--            i++;
>--        }
>--        chunks[j] = chunks[j].slice(length + (i - mem));
>--        current = i;
>--
>--        if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--        return oldi !== i || oldj !== j;
>--    }
>--
>--    function expect(arg, msg) {
>--        var result = $(arg);
>--        if (! result) {
>--            error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'"
>--                                                   : "unexpected token"));
>--        } else {
>--            return result;
>--        }
>--    }
>--
>--    function error(msg, type) {
>--        throw { index: i, type: type || 'Syntax', message: msg };
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    function getInput(e, env) {
>--        if (e.filename && env.filename && (e.filename !== env.filename)) {
>--            return parser.imports.contents[e.filename];
>--        } else {
>--            return input;
>--        }
>--    }
>--
>--    function getLocation(index, input) {
>--        for (var n = index, column = -1;
>--                 n >= 0 && input.charAt(n) !== '\n';
>--                 n--) { column++ }
>--
>--        return { line:   typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null,
>--                 column: column };
>--    }
>--
>--    function getFileName(e) {
>--        if(less.mode === 'browser' || less.mode === 'rhino')
>--            return e.filename;
>--        else
>--            return require('path').resolve(e.filename);
>--    }
>--
>--    function getDebugInfo(index, inputStream, e) {
>--        return {
>--            lineNumber: getLocation(index, inputStream).line + 1,
>--            fileName: getFileName(e)
>--        };
>--    }
>--
>--    function LessError(e, env) {
>--        var input = getInput(e, env),
>--            loc = getLocation(e.index, input),
>--            line = loc.line,
>--            col  = loc.column,
>--            lines = input.split('\n');
>--
>--        this.type = e.type || 'Syntax';
>--        this.message = e.message;
>--        this.filename = e.filename || env.filename;
>--        this.index = e.index;
>--        this.line = typeof(line) === 'number' ? line + 1 : null;
>--        this.callLine = e.call && (getLocation(e.call, input).line + 1);
>--        this.callExtract = lines[getLocation(e.call, input).line];
>--        this.stack = e.stack;
>--        this.column = col;
>--        this.extract = [
>--            lines[line - 1],
>--            lines[line],
>--            lines[line + 1]
>--        ];
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Remove potential UTF Byte Order Mark
>--            input = input.replace(/^\uFEFF/, '');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\\])+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = string.lastIndex = i;
>--
>--                    if (match = string.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                            c = input.charAt(i);
>--                        }
>--                    }
>--
>--                    if (!inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--                    
>--                    switch (c) {
>--                        case '{': if (! inParam) { level ++;        chunk.push(c);                           break }
>--                        case '}': if (! inParam) { level --;        chunk.push(c); chunks[++j] = chunk = []; break }
>--                        case '(': if (! inParam) { inParam = true;  chunk.push(c);                           break }
>--                        case ')': if (  inParam) { inParam = false; chunk.push(c);                           break }
>--                        default:                                    chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    error = new(LessError)({
>--                        index: i,
>--                        type: 'Parse',
>--                        message: "missing closing `}`",
>--                        filename: env.filename
>--                    }, env);
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            if (error) {
>--                return callback(error);
>--            }
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            try {
>--                root = new(tree.Ruleset)([], $(this.parsers.primary));
>--                root.root = true;
>--            } catch (e) {
>--                return callback(new(LessError)(e, env));
>--            }
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [], importError;
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers });
>--                    } catch (e) {
>--                        throw new(LessError)(e, env);
>--                    }
>--
>--                    if ((importError = parser.imports.error)) { // Check if there was an error during importing
>--                        if (importError instanceof LessError) throw importError;
>--                        else                                  throw new(LessError)(importError, env);
>--                    }
>--
>--                    if (options.yuicompress && less.mode === 'node') {
>--                        return require('./cssmin').compressor.cssmin(css);
>--                    } else if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    type: "Parse",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function (e) {
>--                    if (e) callback(e);
>--                    else callback(null, root);
>--                };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--
>--                    if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) {
>--                        if (tree.colors.hasOwnProperty(k)) {
>--                            // detect named color
>--                            return new(tree.Color)(tree.colors[k].slice(1));
>--                        } else {
>--                            return new(tree.Keyword)(k);
>--                        }
>--                    }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, nameLC, args, alpha_ret, index = i;
>--
>--                    if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1];
>--                    nameLC = name.toLowerCase();
>--
>--                    if (nameLC === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (nameLC === 'alpha') {
>--                        alpha_ret = $(this.alpha);
>--                        if(typeof alpha_ret !== 'undefined') {
>--                            return alpha_ret;
>--                        }
>--                    }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index, env.filename) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.entities.assignment) || $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.ratio) ||
>--                           $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                // Assignments are argument entities for calls.
>--                // They are present in ie filter properties as shown below.
>--                //
>--                //     filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
>--                //
>--
>--                assignment: function () {
>--                    var key, value;
>--                    if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) {
>--                        return new(tree.Assignment)(key, value);
>--                    }
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url$/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(/^(?:(?:\\[\($'"])|[^'"])+/) || "";
>--
>--                    expect(')');
>--
>--                    return new(tree.URL)((value.value != null || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index, env.filename);
>--                    }
>--                },
>--
>--                // A variable entity useing the protective {} e.g. @{var}
>--                variableCurly: function () {
>--                    var name, curly, index = i;
>--
>--                    if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) {
>--                        return new(tree.Variable)("@" + curly[1], index, env.filename);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // A Ratio
>--                //
>--                //    16/9
>--                //
>--                ratio: function () {
>--                  var value, c = input.charCodeAt(i);
>--                  if (c > 57 || c < 48) return;
>--
>--                  if (value = $(/^(\d+\/\d+)/)) {
>--                    return new(tree.Ratio)(value[1]);
>--                  }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                save();
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--
>--                restore();
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args = [], arg, index = i, s = input.charAt(i), name, value, important = false;
>--
>--                    if (s !== '.' && s !== '#') { return }
>--                    
>--                    save(); // stop us absorbing part of an invalid selector
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e, i));
>--                        c = $('>');
>--                    }
>--                    if ($('(')) {
>--                        while (arg = $(this.expression)) {
>--                            value = arg;
>--                            name = null;
>--
>--                            // Variable
>--                            if (arg.value.length == 1) {
>--                                var val = arg.value[0];
>--                                if (val instanceof tree.Variable) {
>--                                    if ($(':')) {
>--                                        if (value = $(this.expression)) {
>--                                            name = val.name;
>--                                        } else {
>--                                            throw new(Error)("Expected value");
>--                                        }
>--                                    }
>--                                }
>--                            }
>--
>--                            args.push({ name: name, value: value });
>--
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--                    }
>--
>--                    if ($(this.important)) {
>--                        important = true;
>--                    }
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index, env.filename, important);
>--                    }
>--                    
>--                    restore();
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value, cond, variadic = false;
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    save();
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        do {
>--                            if (input.charAt(i) === '.' && $(/^\.{3}/)) {
>--                                variadic = true;
>--                                break;
>--                            } else if (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                         || $(this.entities.keyword)) {
>--                                // Variable
>--                                if (param instanceof tree.Variable) {
>--                                    if ($(':')) {
>--                                        value = expect(this.expression, 'expected expression');
>--                                        params.push({ name: param.name, value: value });
>--                                    } else if ($(/^\.{3}/)) {
>--                                        params.push({ name: param.name, variadic: true });
>--                                        variadic = true;
>--                                        break;
>--                                    } else {
>--                                        params.push({ name: param.name });
>--                                    }
>--                                } else {
>--                                    params.push({ value: param });
>--                                }
>--                            } else {
>--                                break;
>--                            }
>--                        } while ($(','))
>--
>--                        // .mixincall("@{a}"); 
>--                        // looks a bit like a mixin definition.. so we have to be nice and restore
>--                        if (!$(')')) {
>--                            furthest = i;
>--                            restore();
>--                        }
>--
>--                        if ($(/^when/)) { // Guard
>--                            cond = expect(this.conditions, 'expected condition');
>--                        }
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic);
>--                        } else {
>--                            restore();
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^$opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    expect(')');
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c, v;
>--
>--                c = $(this.combinator);
>--
>--                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) ||
>--                    $('*') || $('&') || $(this.attribute) || $(/^\([^)@]+$/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly);
>--
>--                if (! e) {
>--                    if ($('(') && (v = ($(this.entities.variableCurly) || $(this.entities.variable))) && $(')')) {
>--                        e = new(tree.Paren)(v);
>--                    }
>--                }
>--
>--                if (e) { return new(tree.Element)(c, e, i) }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i).match(/\s/)) { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (input.charAt(i - 1).match(/\s/)) {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                // depreciated, will be removed soon
>--                if ($('(')) {
>--                    sel = $(this.entity);
>--                    expect(')');
>--                    return new(tree.Selector)([new(tree.Element)('', sel, i)]);
>--                }
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[A-Za-z][A-Za-z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match, debugInfo;
>--                save();
>--
>--                if (env.dumpLineNumbers)
>--                    debugInfo = getDebugInfo(i, input, env);
>--
>--                while (s = $(this.selector)) {
>--                    selectors.push(s);
>--                    $(this.comment);
>--                    if (! $(',')) { break }
>--                    $(this.comment);
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports);
>--                    if (env.dumpLineNumbers)
>--                        ruleset.debugInfo = debugInfo;
>--                    return ruleset;
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path, features, index = i;
>--                
>--                save();
>--                
>--                var dir = $(/^@import(?:-(once))?\s+/);
>--
>--                if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) {
>--                    features = $(this.mediaFeatures);
>--                    if ($(';')) {
>--                        return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index);
>--                    }
>--                }
>--                
>--                restore();
>--            },
>--
>--            mediaFeature: function () {
>--                var e, p, nodes = [];
>--
>--                do {
>--                    if (e = $(this.entities.keyword)) {
>--                        nodes.push(e);
>--                    } else if ($('(')) {
>--                        p = $(this.property);
>--                        e = $(this.entity);
>--                        if ($(')')) {
>--                            if (p && e) {
>--                                nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true)));
>--                            } else if (e) {
>--                                nodes.push(new(tree.Paren)(e));
>--                            } else {
>--                                return null;
>--                            }
>--                        } else { return null }
>--                    }
>--                } while (e);
>--
>--                if (nodes.length > 0) {
>--                    return new(tree.Expression)(nodes);
>--                }
>--            },
>--
>--            mediaFeatures: function () {
>--                var e, features = [];
>--
>--                do {
>--                  if (e = $(this.mediaFeature)) {
>--                      features.push(e);
>--                      if (! $(',')) { break }
>--                  } else if (e = $(this.entities.variable)) {
>--                      features.push(e);
>--                      if (! $(',')) { break }
>--                  }
>--                } while (e);
>--
>--                return features.length > 0 ? features : null;
>--            },
>--
>--            media: function () {
>--                var features, rules, media, debugInfo;
>--
>--                if (env.dumpLineNumbers)
>--                    debugInfo = getDebugInfo(i, input, env);
>--
>--                if ($(/^@media/)) {
>--                    features = $(this.mediaFeatures);
>--
>--                    if (rules = $(this.block)) {
>--                        media = new(tree.Media)(rules, features);
>--                        if(env.dumpLineNumbers)
>--                            media.debugInfo = debugInfo;
>--                        return media;
>--                    }
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, identifier, e, nodes, nonVendorSpecificName,
>--                    hasBlock, hasIdentifier;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import']) || $(this.media)) {
>--                    return value;
>--                }
>--                
>--                save();
>--
>--                name = $(/^@[a-z-]+/);
>--
>--                nonVendorSpecificName = name;
>--                if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) {
>--                    nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1);
>--                }
>--
>--                switch(nonVendorSpecificName) {
>--                    case "@font-face":
>--                        hasBlock = true;
>--                        break;
>--                    case "@viewport":
>--                    case "@top-left":
>--                    case "@top-left-corner":
>--                    case "@top-center":
>--                    case "@top-right":
>--                    case "@top-right-corner":
>--                    case "@bottom-left":
>--                    case "@bottom-left-corner":
>--                    case "@bottom-center":
>--                    case "@bottom-right":
>--                    case "@bottom-right-corner":
>--                    case "@left-top":
>--                    case "@left-middle":
>--                    case "@left-bottom":
>--                    case "@right-top":
>--                    case "@right-middle":
>--                    case "@right-bottom":
>--                        hasBlock = true;
>--                        break;
>--                    case "@page":
>--                    case "@document":
>--                    case "@supports":
>--                    case "@keyframes":
>--                        hasBlock = true;
>--                        hasIdentifier = true;
>--                        break;
>--                }
>--
>--                if (hasIdentifier) {
>--                    name += " " + ($(/^[^{]+/) || '').trim();
>--                }
>--
>--                if (hasBlock)
>--                {
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name, rules);
>--                    }
>--                } else {
>--                    if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--                
>--                restore();
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            conditions: function () {
>--                var a, b, index = i, condition;
>--
>--                if (a = $(this.condition)) {
>--                    while ($(',') && (b = $(this.condition))) {
>--                        condition = new(tree.Condition)('or', condition || a, b, index);
>--                    }
>--                    return condition || a;
>--                }
>--            },
>--            condition: function () {
>--                var a, b, c, op, index = i, negate = false;
>--
>--                if ($(/^not/)) { negate = true }
>--                expect('(');
>--                if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                    if (op = $(/^(?:>=|=<|[<=>])/)) {
>--                        if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                            c = new(tree.Condition)(op, a, b, index, negate);
>--                        } else {
>--                            error('expected expression');
>--                        }
>--                    } else {
>--                        c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate);
>--                    }
>--                    expect(')');
>--                    return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (less.mode === 'browser' || less.mode === 'rhino') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        // __ Now using the hack of passing a ref to top parser's content cache in the 1st arg. __
>--        loadStyleSheet({ href: path, title: path, type: env.mime, contents: env.contents }, function (e) {
>--            if (e && typeof(env.errback) === "function") {
>--                env.errback.call(null, path, paths, callback, env);
>--            } else {
>--                callback.apply(null, arguments);
>--            }
>--        }, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    red: function (color) {
>--        return new(tree.Dimension)(color.rgb[0]);
>--    },
>--    green: function (color) {
>--        return new(tree.Dimension)(color.rgb[1]);
>--    },
>--    blue: function (color) {
>--        return new(tree.Dimension)(color.rgb[2]);
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    luma: function (color) {
>--        return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) +
>--            0.7152 * (color.rgb[1]/255) +
>--            0.0722 * (color.rgb[2]/255))
>--            * color.alpha * 100), '%');
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fade: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a = amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        if (!weight) {
>--            weight = new(tree.Dimension)(50);
>--        }
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    contrast: function (color, dark, light, threshold) {
>--        if (typeof light === 'undefined') {
>--            light = this.rgba(255, 255, 255, 1.0);
>--        }
>--        if (typeof dark === 'undefined') {
>--            dark = this.rgba(0, 0, 0, 1.0);
>--        }
>--        if (typeof threshold === 'undefined') {
>--            threshold = 0.43;
>--        } else {
>--            threshold = threshold.value;
>--        }
>--        if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) {
>--            return light;
>--        } else {
>--            return dark;
>--        }
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n, f) {
>--        var fraction = typeof(f) === "undefined" ? 0 : f.value;
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(number(n).toFixed(fraction), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return n.toFixed(fraction);
>--        } else {
>--            throw { type: "Argument", message: "argument must be a number" };
>--        }
>--    },
>--    ceil: function (n) {
>--        return this._math('ceil', n);
>--    },
>--    floor: function (n) {
>--        return this._math('floor', n);
>--    },
>--    _math: function (fn, n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math[fn](number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math[fn](n);
>--        } else {
>--            throw { type: "Argument", message: "argument must be a number" };
>--        }
>--    },
>--    argb: function (color) {
>--        return new(tree.Anonymous)(color.toARGB());
>--
>--    },
>--    percentage: function (n) {
>--        return new(tree.Dimension)(n.value * 100, '%');
>--    },
>--    color: function (n) {
>--        if (n instanceof tree.Quoted) {
>--            return new(tree.Color)(n.value.slice(1));
>--        } else {
>--            throw { type: "Argument", message: "argument must be a string" };
>--        }
>--    },
>--    iscolor: function (n) {
>--        return this._isa(n, tree.Color);
>--    },
>--    isnumber: function (n) {
>--        return this._isa(n, tree.Dimension);
>--    },
>--    isstring: function (n) {
>--        return this._isa(n, tree.Quoted);
>--    },
>--    iskeyword: function (n) {
>--        return this._isa(n, tree.Keyword);
>--    },
>--    isurl: function (n) {
>--        return this._isa(n, tree.URL);
>--    },
>--    ispixel: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False;
>--    },
>--    ispercentage: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False;
>--    },
>--    isem: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False;
>--    },
>--    _isa: function (n, Type) {
>--        return (n instanceof Type) ? tree.True : tree.False;
>--    },
>--    
>--    /* Blending modes */
>--    
>--    multiply: function(color1, color2) {
>--        var r = color1.rgb[0] * color2.rgb[0] / 255;
>--        var g = color1.rgb[1] * color2.rgb[1] / 255;
>--        var b = color1.rgb[2] * color2.rgb[2] / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    screen: function(color1, color2) {
>--        var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255;
>--        var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255;
>--        var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    overlay: function(color1, color2) {
>--        var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255;
>--        var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255;
>--        var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    softlight: function(color1, color2) {
>--        var t = color2.rgb[0] * color1.rgb[0] / 255;
>--        var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255;
>--        t = color2.rgb[1] * color1.rgb[1] / 255;
>--        var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255;
>--        t = color2.rgb[2] * color1.rgb[2] / 255;
>--        var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    hardlight: function(color1, color2) {
>--        var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255;
>--        var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255;
>--        var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    difference: function(color1, color2) {
>--        var r = Math.abs(color1.rgb[0] - color2.rgb[0]);
>--        var g = Math.abs(color1.rgb[1] - color2.rgb[1]);
>--        var b = Math.abs(color1.rgb[2] - color2.rgb[2]);
>--        return this.rgb(r, g, b);
>--    },
>--    exclusion: function(color1, color2) {
>--        var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255;
>--        var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255;
>--        var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    average: function(color1, color2) {
>--        var r = (color1.rgb[0] + color2.rgb[0]) / 2;
>--        var g = (color1.rgb[1] + color2.rgb[1]) / 2;
>--        var b = (color1.rgb[2] + color2.rgb[2]) / 2;
>--        return this.rgb(r, g, b);
>--    },
>--    negation: function(color1, color2) {
>--        var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]);
>--        var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]);
>--        var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]);
>--        return this.rgb(r, g, b);
>--    },
>--    tint: function(color, amount) {
>--        return this.mix(this.rgb(255,255,255), color, amount);
>--    },
>--    shade: function(color, amount) {
>--        return this.mix(this.rgb(0, 0, 0), color, amount);
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('./tree'));
>--(function (tree) {
>--    tree.colors = {
>--        'aliceblue':'#f0f8ff',
>--        'antiquewhite':'#faebd7',
>--        'aqua':'#00ffff',
>--        'aquamarine':'#7fffd4',
>--        'azure':'#f0ffff',
>--        'beige':'#f5f5dc',
>--        'bisque':'#ffe4c4',
>--        'black':'#000000',
>--        'blanchedalmond':'#ffebcd',
>--        'blue':'#0000ff',
>--        'blueviolet':'#8a2be2',
>--        'brown':'#a52a2a',
>--        'burlywood':'#deb887',
>--        'cadetblue':'#5f9ea0',
>--        'chartreuse':'#7fff00',
>--        'chocolate':'#d2691e',
>--        'coral':'#ff7f50',
>--        'cornflowerblue':'#6495ed',
>--        'cornsilk':'#fff8dc',
>--        'crimson':'#dc143c',
>--        'cyan':'#00ffff',
>--        'darkblue':'#00008b',
>--        'darkcyan':'#008b8b',
>--        'darkgoldenrod':'#b8860b',
>--        'darkgray':'#a9a9a9',
>--        'darkgrey':'#a9a9a9',
>--        'darkgreen':'#006400',
>--        'darkkhaki':'#bdb76b',
>--        'darkmagenta':'#8b008b',
>--        'darkolivegreen':'#556b2f',
>--        'darkorange':'#ff8c00',
>--        'darkorchid':'#9932cc',
>--        'darkred':'#8b0000',
>--        'darksalmon':'#e9967a',
>--        'darkseagreen':'#8fbc8f',
>--        'darkslateblue':'#483d8b',
>--        'darkslategray':'#2f4f4f',
>--        'darkslategrey':'#2f4f4f',
>--        'darkturquoise':'#00ced1',
>--        'darkviolet':'#9400d3',
>--        'deeppink':'#ff1493',
>--        'deepskyblue':'#00bfff',
>--        'dimgray':'#696969',
>--        'dimgrey':'#696969',
>--        'dodgerblue':'#1e90ff',
>--        'firebrick':'#b22222',
>--        'floralwhite':'#fffaf0',
>--        'forestgreen':'#228b22',
>--        'fuchsia':'#ff00ff',
>--        'gainsboro':'#dcdcdc',
>--        'ghostwhite':'#f8f8ff',
>--        'gold':'#ffd700',
>--        'goldenrod':'#daa520',
>--        'gray':'#808080',
>--        'grey':'#808080',
>--        'green':'#008000',
>--        'greenyellow':'#adff2f',
>--        'honeydew':'#f0fff0',
>--        'hotpink':'#ff69b4',
>--        'indianred':'#cd5c5c',
>--        'indigo':'#4b0082',
>--        'ivory':'#fffff0',
>--        'khaki':'#f0e68c',
>--        'lavender':'#e6e6fa',
>--        'lavenderblush':'#fff0f5',
>--        'lawngreen':'#7cfc00',
>--        'lemonchiffon':'#fffacd',
>--        'lightblue':'#add8e6',
>--        'lightcoral':'#f08080',
>--        'lightcyan':'#e0ffff',
>--        'lightgoldenrodyellow':'#fafad2',
>--        'lightgray':'#d3d3d3',
>--        'lightgrey':'#d3d3d3',
>--        'lightgreen':'#90ee90',
>--        'lightpink':'#ffb6c1',
>--        'lightsalmon':'#ffa07a',
>--        'lightseagreen':'#20b2aa',
>--        'lightskyblue':'#87cefa',
>--        'lightslategray':'#778899',
>--        'lightslategrey':'#778899',
>--        'lightsteelblue':'#b0c4de',
>--        'lightyellow':'#ffffe0',
>--        'lime':'#00ff00',
>--        'limegreen':'#32cd32',
>--        'linen':'#faf0e6',
>--        'magenta':'#ff00ff',
>--        'maroon':'#800000',
>--        'mediumaquamarine':'#66cdaa',
>--        'mediumblue':'#0000cd',
>--        'mediumorchid':'#ba55d3',
>--        'mediumpurple':'#9370d8',
>--        'mediumseagreen':'#3cb371',
>--        'mediumslateblue':'#7b68ee',
>--        'mediumspringgreen':'#00fa9a',
>--        'mediumturquoise':'#48d1cc',
>--        'mediumvioletred':'#c71585',
>--        'midnightblue':'#191970',
>--        'mintcream':'#f5fffa',
>--        'mistyrose':'#ffe4e1',
>--        'moccasin':'#ffe4b5',
>--        'navajowhite':'#ffdead',
>--        'navy':'#000080',
>--        'oldlace':'#fdf5e6',
>--        'olive':'#808000',
>--        'olivedrab':'#6b8e23',
>--        'orange':'#ffa500',
>--        'orangered':'#ff4500',
>--        'orchid':'#da70d6',
>--        'palegoldenrod':'#eee8aa',
>--        'palegreen':'#98fb98',
>--        'paleturquoise':'#afeeee',
>--        'palevioletred':'#d87093',
>--        'papayawhip':'#ffefd5',
>--        'peachpuff':'#ffdab9',
>--        'peru':'#cd853f',
>--        'pink':'#ffc0cb',
>--        'plum':'#dda0dd',
>--        'powderblue':'#b0e0e6',
>--        'purple':'#800080',
>--        'red':'#ff0000',
>--        'rosybrown':'#bc8f8f',
>--        'royalblue':'#4169e1',
>--        'saddlebrown':'#8b4513',
>--        'salmon':'#fa8072',
>--        'sandybrown':'#f4a460',
>--        'seagreen':'#2e8b57',
>--        'seashell':'#fff5ee',
>--        'sienna':'#a0522d',
>--        'silver':'#c0c0c0',
>--        'skyblue':'#87ceeb',
>--        'slateblue':'#6a5acd',
>--        'slategray':'#708090',
>--        'slategrey':'#708090',
>--        'snow':'#fffafa',
>--        'springgreen':'#00ff7f',
>--        'steelblue':'#4682b4',
>--        'tan':'#d2b48c',
>--        'teal':'#008080',
>--        'thistle':'#d8bfd8',
>--        'tomato':'#ff6347',
>--        // 'transparent':'rgba(0,0,0,0)',
>--        'turquoise':'#40e0d0',
>--        'violet':'#ee82ee',
>--        'wheat':'#f5deb3',
>--        'white':'#ffffff',
>--        'whitesmoke':'#f5f5f5',
>--        'yellow':'#ffff00',
>--        'yellowgreen':'#9acd32'
>--    };
>--})(require('./tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this },
>--    compare: function (x) {
>--        if (!x.toCSS) {
>--            return -1;
>--        }
>--        
>--        var left = this.toCSS(),
>--            right = x.toCSS();
>--        
>--        if (left === right) {
>--            return 0;
>--        }
>--        
>--        return left < right ? -1 : 1;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Assignment = function (key, val) {
>--    this.key = key;
>--    this.value = val;
>--};
>--tree.Assignment.prototype = {
>--    toCSS: function () {
>--        return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value);
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) {
>--            return new(tree.Assignment)(this.key, this.value.eval(env));
>--        }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index, filename) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--    this.filename = filename;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { type: e.type || "Runtime",
>--                        message: "error evaluating function `" + this.name + "`" +
>--                                 (e.message ? ': ' + e.message : ''),
>--                        index: this.index, filename: this.filename };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    },
>--    toARGB: function () {
>--        var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
>--        return '#' + argb.map(function (i) {
>--            i = Math.round(i);
>--            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--            return i.length === 1 ? '0' + i : i;
>--        }).join('');
>--    },
>--    compare: function (x) {
>--        if (!x.rgb) {
>--            return -1;
>--        }
>--        
>--        return (x.rgb[0] === this.rgb[0] &&
>--            x.rgb[1] === this.rgb[1] &&
>--            x.rgb[2] === this.rgb[2] &&
>--            x.alpha === this.alpha) ? 0 : -1;
>--    }
>--};
>--
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Condition = function (op, l, r, i, negate) {
>--    this.op = op.trim();
>--    this.lvalue = l;
>--    this.rvalue = r;
>--    this.index = i;
>--    this.negate = negate;
>--};
>--tree.Condition.prototype.eval = function (env) {
>--    var a = this.lvalue.eval(env),
>--        b = this.rvalue.eval(env);
>--
>--    var i = this.index, result;
>--
>--    var result = (function (op) {
>--        switch (op) {
>--            case 'and':
>--                return a && b;
>--            case 'or':
>--                return a || b;
>--            default:
>--                if (a.compare) {
>--                    result = a.compare(b);
>--                } else if (b.compare) {
>--                    result = b.compare(a);
>--                } else {
>--                    throw { type: "Type",
>--                            message: "Unable to perform comparison",
>--                            index: i };
>--                }
>--                switch (result) {
>--                    case -1: return op === '<' || op === '=<';
>--                    case  0: return op === '=' || op === '>=' || op === '=<';
>--                    case  1: return op === '>' || op === '>=';
>--                }
>--        }
>--    })(this.op);
>--    return this.negate ? !result : result;
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    },
>--
>--    // TODO: Perform unit conversion before comparing
>--    compare: function (other) {
>--        if (other instanceof tree.Dimension) {
>--            if (other.value > this.value) {
>--                return -1;
>--            } else if (other.value < this.value) {
>--                return 1;
>--            } else {
>--                return 0;
>--            }
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--        this.ruleset.allowImports = true;
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        var evaldDirective = this;
>--        if (this.ruleset) {
>--            env.frames.unshift(this);
>--            evaldDirective = new(tree.Directive)(this.name);
>--            evaldDirective.ruleset = this.ruleset.eval(env);
>--            env.frames.shift();
>--        }
>--        return evaldDirective;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value, index) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--
>--    if (typeof(value) === 'string') {
>--        this.value = value.trim();
>--    } else if (value) {
>--        this.value = value;
>--    } else {
>--        this.value = "";
>--    }
>--    this.index = index;
>--};
>--tree.Element.prototype.eval = function (env) {
>--    return new(tree.Element)(this.combinator,
>--                             this.value.eval ? this.value.eval(env) : this.value,
>--                             this.index);
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--	var value = (this.value.toCSS ? this.value.toCSS(env) : this.value);
>--	if (value == '' && this.combinator.value.charAt(0) == '&') {
>--		return '';
>--	} else {
>--		return this.combinator.toCSS(env || {}) + value;
>--	}
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        ':' : ' :',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS ? e.toCSS(env) : '';
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports, features, once, index) {
>--    var that = this;
>--
>--    this.once = once;
>--    this.index = index;
>--    this._path = path;
>--    this.features = features && new(tree.Value)(features);
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css(\?.*)?$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (e, root, imported) {
>--            if (e) { e.index = index }
>--            if (imported && that.once) that.skip = imported;
>--            that.root = root || new(tree.Ruleset)([], []);
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function (env) {
>--        var features = this.features ? ' ' + this.features.toCSS(env) : '';
>--
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + features + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset, features = this.features && this.features.eval(env);
>--
>--        if (this.skip) return [];
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)([], this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value },
>--    compare: function (other) {
>--        if (other instanceof tree.Keyword) {
>--            return other.value === this.value ? 0 : 1;
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--tree.True = new(tree.Keyword)('true');
>--tree.False = new(tree.Keyword)('false');
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Media = function (value, features) {
>--    var selectors = this.emptySelectors();
>--
>--    this.features = new(tree.Value)(features);
>--    this.ruleset = new(tree.Ruleset)(selectors, value);
>--    this.ruleset.allowImports = true;
>--};
>--tree.Media.prototype = {
>--    toCSS: function (ctx, env) {
>--        var features = this.features.toCSS(env);
>--
>--        this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia);
>--        return '@media ' + features + (env.compress ? '{' : ' {\n  ') +
>--               this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                           (env.compress ? '}': '\n}\n');
>--    },
>--    eval: function (env) {
>--        if (!env.mediaBlocks) {
>--            env.mediaBlocks = [];
>--            env.mediaPath = [];
>--        }
>--        
>--        var blockIndex = env.mediaBlocks.length;
>--        env.mediaPath.push(this);
>--        env.mediaBlocks.push(this);
>--
>--        var media = new(tree.Media)([], []);
>--        if(this.debugInfo) {
>--            this.ruleset.debugInfo = this.debugInfo;
>--            media.debugInfo = this.debugInfo;
>--        }
>--        media.features = this.features.eval(env);
>--        
>--        env.frames.unshift(this.ruleset);
>--        media.ruleset = this.ruleset.eval(env);
>--        env.frames.shift();
>--        
>--        env.mediaBlocks[blockIndex] = media;
>--        env.mediaPath.pop();
>--
>--        return env.mediaPath.length === 0 ? media.evalTop(env) :
>--                    media.evalNested(env)
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) },
>--    emptySelectors: function() { 
>--        var el = new(tree.Element)('', '&', 0);
>--        return [new(tree.Selector)([el])];
>--    },
>--
>--    evalTop: function (env) {
>--        var result = this;
>--
>--        // Render all dependent Media blocks.
>--        if (env.mediaBlocks.length > 1) {
>--            var selectors = this.emptySelectors();
>--            result = new(tree.Ruleset)(selectors, env.mediaBlocks);
>--            result.multiMedia = true;
>--        }
>--
>--        delete env.mediaBlocks;
>--        delete env.mediaPath;
>--
>--        return result;
>--    },
>--    evalNested: function (env) {
>--        var i, value,
>--            path = env.mediaPath.concat([this]);
>--
>--        // Extract the media-query conditions separated with `,` (OR).
>--        for (i = 0; i < path.length; i++) {
>--            value = path[i].features instanceof tree.Value ?
>--                        path[i].features.value : path[i].features;
>--            path[i] = Array.isArray(value) ? value : [value];
>--        }
>--
>--        // Trace all permutations to generate the resulting media-query.
>--        //
>--        // (a, b and c) with nested (d, e) ->
>--        //    a and d
>--        //    a and e
>--        //    b and c and d
>--        //    b and c and e
>--        this.features = new(tree.Value)(this.permute(path).map(function (path) {
>--            path = path.map(function (fragment) {
>--                return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment);
>--            });
>--
>--            for(i = path.length - 1; i > 0; i--) {
>--                path.splice(i, 0, new(tree.Anonymous)("and"));
>--            }
>--
>--            return new(tree.Expression)(path);
>--        }));
>--
>--        // Fake a tree-node that doesn't output anything.
>--        return new(tree.Ruleset)([], []);
>--    },
>--    permute: function (arr) {
>--      if (arr.length === 0) {
>--          return [];
>--      } else if (arr.length === 1) {
>--          return arr[0];
>--      } else {
>--          var result = [];
>--          var rest = this.permute(arr.slice(1));
>--          for (var i = 0; i < rest.length; i++) {
>--              for (var j = 0; j < arr[0].length; j++) {
>--                  result.push([arr[0][j]].concat(rest[i]));
>--              }
>--          }
>--          return result;
>--      }
>--    },
>--    bubbleSelectors: function (selectors) {
>--      this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index, filename, important) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--    this.filename = filename;
>--    this.important = important;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) {
>--                    return { name: a.name, value: a.value.eval(env) };
>--                });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments, this.important).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { type:    'Runtime',
>--                            message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index, filename: this.filename };
>--                }
>--            }
>--        }
>--        throw { type: 'Name',
>--                message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index, filename: this.filename };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules, condition, variadic) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.condition = condition;
>--    this.variadic = variadic;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    evalParams: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), varargs, arg;
>--
>--        for (var i = 0, val, name; i < this.params.length; i++) {
>--            arg = args && args[i]
>--
>--            if (arg && arg.name) {
>--                frame.rules.unshift(new(tree.Rule)(arg.name, arg.value.eval(env)));
>--                args.splice(i, 1);
>--                i--;
>--                continue;
>--            }
>--			
>--            if (name = this.params[i].name) {
>--                if (this.params[i].variadic && args) {
>--                    varargs = [];
>--                    for (var j = i; j < args.length; j++) {
>--                        varargs.push(args[j].value.eval(env));
>--                    }
>--                    frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env)));
>--                } else if (val = (arg && arg.value) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(name, val.eval(env)));
>--                } else {
>--                    throw { type: 'Runtime', message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        return frame;
>--    },
>--    eval: function (env, args, important) {
>--        var frame = this.evalParams(env, args), context, _arguments = [], rules, start;
>--
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push((args[i] && args[i].value) || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        rules = important ?
>--            this.rules.map(function (r) {
>--                return new(tree.Rule)(r.name, r.value, '!important', r.index);
>--            }) : this.rules.slice(0);
>--
>--        return new(tree.Ruleset)(null, rules).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len, frame;
>--
>--        if (! this.variadic) {
>--            if (argsLength < this.required)                               { return false }
>--            if (argsLength > this.params.length)                          { return false }
>--            if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--        }
>--
>--        if (this.condition && !this.condition.eval({
>--            frames: [this.evalParams(env, args)].concat(env.frames)
>--        }))                                                           { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Paren = function (node) {
>--    this.value = node;
>--};
>--tree.Paren.prototype = {
>--    toCSS: function (env) {
>--        return '(' + this.value.toCSS(env) + ')';
>--    },
>--    eval: function (env) {
>--        return new(tree.Paren)(this.value.eval(env));
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return ('value' in v) ? v.value : v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    },
>--    compare: function (x) {
>--        if (!x.toCSS) {
>--            return -1;
>--        }
>--        
>--        var left = this.toCSS(),
>--            right = x.toCSS();
>--        
>--        if (left === right) {
>--            return 0;
>--        }
>--        
>--        return left < right ? -1 : 1;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ratio = function (value) {
>--    this.value = value;
>--};
>--tree.Ratio.prototype = {
>--    toCSS: function (env) {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index, inline) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--    this.inline = inline || false;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + (this.inline ? "" : ";");
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name,
>--                          this.value.eval(context),
>--                          this.important,
>--                          this.index, this.inline);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules, strictImports) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.strictImports = strictImports;
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) });
>--        var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports);
>--        var rules = [];
>--        
>--        ruleset.root = this.root;
>--        ruleset.allowImports = this.allowImports;
>--
>--        if(this.debugInfo) {
>--            ruleset.debugInfo = this.debugInfo;
>--        }
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    rules = rules.concat(ruleset.rules[i].eval(env));
>--                } else {
>--                    rules.push(ruleset.rules[i]);
>--                }
>--            }
>--            ruleset.rules = rules;
>--            rules = [];
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--        
>--        var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0;
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                rules = rules.concat(ruleset.rules[i].eval(env));
>--            } else {
>--                rules.push(ruleset.rules[i]);
>--            }
>--        }
>--        ruleset.rules = rules;
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--        
>--        if (env.mediaBlocks) {
>--            for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) {
>--                env.mediaBlocks[i].bubbleSelectors(selectors);
>--            }
>--        }
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > rule.selectors[j].elements.length) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--           _rules = [],    //
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            debugInfo,     // Line number debugging
>--            rule;
>--
>--        if (! this.root) {
>--            this.joinSelectors(paths, context, this.selectors);
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                debugInfo = tree.debugInfo(env, this);
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : ',\n');
>--
>--                // Remove duplicates
>--                for (var i = rules.length - 1; i >= 0; i--) {
>--                    if (_rules.indexOf(rules[i]) === -1) {
>--                        _rules.unshift(rules[i]);
>--                    }
>--                }
>--                rules = _rules;
>--
>--                css.push(debugInfo + selector + 
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('')  + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--
>--        var i, j, k, 
>--            hasParentSelector, newSelectors, el, sel, parentSel, 
>--            newSelectorPath, afterParentJoin, newJoinedSelector, 
>--            newJoinedSelectorEmpty, lastSelector, currentElements,
>--            selectorsMultiplied;
>--    
>--        for (i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.value === '&') {
>--                hasParentSelector = true;
>--            }
>--        }
>--    
>--        if (!hasParentSelector) {
>--            if (context.length > 0) {
>--                for(i = 0; i < context.length; i++) {
>--                    paths.push(context[i].concat(selector));
>--                }
>--            }
>--            else {
>--                paths.push([selector]);
>--            }
>--            return;
>--        }
>--
>--        // The paths are [[Selector]]
>--        // The first list is a list of comma seperated selectors
>--        // The inner list is a list of inheritance seperated selectors
>--        // e.g.
>--        // .a, .b {
>--        //   .c {
>--        //   }
>--        // }
>--        // == [[.a] [.c]] [[.b] [.c]]
>--        //
>--
>--        // the elements from the current selector so far
>--        currentElements = [];
>--        // the current list of new selectors to add to the path.
>--        // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors
>--        // by the parents
>--        newSelectors = [[]];
>--
>--        for (i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            // non parent reference elements just get added
>--            if (el.value !== "&") {
>--                currentElements.push(el);
>--            } else {
>--                // the new list of selectors to add
>--                selectorsMultiplied = [];
>--
>--                // merge the current list of non parent selector elements
>--                // on to the current list of selectors to add
>--                if (currentElements.length > 0) {
>--                    this.mergeElementsOnToSelectors(currentElements, newSelectors);
>--                }
>--
>--                // loop through our current selectors
>--                for(j = 0; j < newSelectors.length; j++) {
>--                    sel = newSelectors[j];
>--                    // if we don't have any parent paths, the & might be in a mixin so that it can be used
>--                    // whether there are parents or not
>--                    if (context.length == 0) {
>--                        // the combinator used on el should now be applied to the next element instead so that
>--                        // it is not lost
>--                        if (sel.length > 0) {
>--                            sel[0].elements = sel[0].elements.slice(0);
>--                            sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator,  ""));
>--                        }
>--                        selectorsMultiplied.push(sel);
>--                    }
>--                    else {
>--                        // and the parent selectors
>--                        for(k = 0; k < context.length; k++) {
>--                            parentSel = context[k];
>--                            // We need to put the current selectors
>--                            // then join the last selector's elements on to the parents selectors
>--
>--                            // our new selector path
>--                            newSelectorPath = [];
>--                            // selectors from the parent after the join
>--                            afterParentJoin = [];
>--                            newJoinedSelectorEmpty = true;
>--
>--                            //construct the joined selector - if & is the first thing this will be empty,
>--                            // if not newJoinedSelector will be the last set of elements in the selector
>--                            if (sel.length > 0) {
>--                                newSelectorPath = sel.slice(0);
>--                                lastSelector = newSelectorPath.pop();
>--                                newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0));
>--                                newJoinedSelectorEmpty = false;
>--                            }
>--                            else {
>--                                newJoinedSelector = new(tree.Selector)([]);
>--                            }
>--
>--                            //put together the parent selectors after the join
>--                            if (parentSel.length > 1) {
>--                                afterParentJoin = afterParentJoin.concat(parentSel.slice(1));
>--                            }
>--
>--                            if (parentSel.length > 0) {
>--                                newJoinedSelectorEmpty = false;
>--
>--                                // join the elements so far with the first part of the parent
>--                                newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0));
>--                                newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1));
>--                            }
>--
>--                            if (!newJoinedSelectorEmpty) {
>--                                // now add the joined selector
>--                                newSelectorPath.push(newJoinedSelector);
>--                            }
>--
>--                            // and the rest of the parent
>--                            newSelectorPath = newSelectorPath.concat(afterParentJoin);
>--
>--                            // add that to our new set of selectors
>--                            selectorsMultiplied.push(newSelectorPath);
>--                        }
>--                    }
>--                }
>--
>--                // our new selectors has been multiplied, so reset the state
>--                newSelectors = selectorsMultiplied;
>--                currentElements = [];
>--            }
>--        }
>--
>--        // if we have any elements left over (e.g. .a& .b == .b)
>--        // add them on to all the current selectors
>--        if (currentElements.length > 0) {
>--            this.mergeElementsOnToSelectors(currentElements, newSelectors);
>--        }
>--
>--        for(i = 0; i < newSelectors.length; i++) {
>--            paths.push(newSelectors[i]);
>--        }
>--    },
>--    
>--    mergeElementsOnToSelectors: function(elements, selectors) {
>--        var i, sel;
>--
>--        if (selectors.length == 0) {
>--            selectors.push([ new(tree.Selector)(elements) ]);
>--            return;
>--        }
>--
>--        for(i = 0; i < selectors.length; i++) {
>--            sel = selectors[i];
>--
>--            // if the previous thing in sel is a parent this needs to join on to it
>--            if (sel.length > 0) {
>--                sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements));
>--            }
>--            else {
>--                sel.push(new(tree.Selector)(elements));
>--            }
>--        }
>--    }
>--};
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--};
>--tree.Selector.prototype.match = function (other) {
>--    var len  = this.elements.length,
>--        olen = other.elements.length,
>--        max  = Math.min(len, olen);
>--
>--    if (len < olen) {
>--        return false;
>--    } else {
>--        for (var i = 0; i < max; i++) {
>--            if (this.elements[i].value !== other.elements[i].value) {
>--                return false;
>--            }
>--        }
>--    }
>--    return true;
>--};
>--tree.Selector.prototype.eval = function (env) {
>--    return new(tree.Selector)(this.elements.map(function (e) {
>--        return e.eval(env);
>--    }));
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--    
>--    if (this.elements[0].combinator.value === "") {
>--        this._css = ' ';
>--    } else {
>--        this._css = '';
>--    }
>--    
>--    this._css += this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--    
>--    return this._css;
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    this.value = val;
>--    this.paths = paths;
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + this.value.toCSS() + ")";
>--    },
>--    eval: function (ctx) {
>--        var val = this.value.eval(ctx);
>--
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (typeof window !== 'undefined' && typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value) && this.paths.length > 0) {
>--            val.value = this.paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--
>--        return new(tree.URL)(val, this.paths);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { type: 'Name',
>--                    message: "variable " + name + " is undefined",
>--                    filename: this.file,
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.debugInfo = function(env, ctx) {
>--    var result="";
>--    if (env.dumpLineNumbers && !env.compress) {
>--        switch(env.dumpLineNumbers) {
>--            case 'comments':
>--                result = tree.debugInfo.asComment(ctx);
>--                break;
>--            case 'mediaquery':
>--                result = tree.debugInfo.asMediaQuery(ctx);
>--                break;
>--            case 'all':
>--                result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx);
>--                break;
>--        }
>--    }
>--    return result;
>--};
>--
>--tree.debugInfo.asComment = function(ctx) {
>--    return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n';
>--};
>--
>--tree.debugInfo.asMediaQuery = function(ctx) {
>--    return '@media -sass-debug-info{filename{font-family:"' + ctx.debugInfo.fileName + '";}line{font-family:"' + ctx.debugInfo.lineNumber + '";}}\n';
>--};
>--
>--tree.find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--tree.jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--
>--})(require('./tree'));
>--//
>--// browser.js - client-side engine
>--//
>--
>--var isFileProtocol = /^(file|chrome(-extension)?|resource|qrc|app):/.test(location.protocol);
>--
>--less.env = less.env || (location.hostname == '127.0.0.1' ||
>--                        location.hostname == '0.0.0.0'   ||
>--                        location.hostname == 'localhost' ||
>--                        location.port.length > 0         ||
>--                        isFileProtocol                   ? 'development'
>--                                                         : 'production');
>--
>--// Load styles asynchronously (default: false)
>--//
>--// This is set to `false` by default, so that the body
>--// doesn't start loading before the stylesheets are parsed.
>--// Setting this to `true` can result in flickering.
>--//
>--less.async = less.async || false;
>--less.fileAsync = less.fileAsync || false;
>--
>--// Interval between watch polls
>--less.poll = less.poll || (isFileProtocol ? 1000 : 1500);
>--
>--//
>--// Watch mode
>--//
>--less.watch   = function () { return this.watchMode = true };
>--less.unwatch = function () { return this.watchMode = false };
>--
>--if (less.env === 'development') {
>--    less.optimization = 0;
>--
>--    if (/!watch/.test(location.hash)) {
>--        less.watch();
>--    }
>--    var dumpLineNumbers = /!dumpLineNumbers:(comments|mediaquery|all)/.exec(location.hash);
>--    if (dumpLineNumbers) {
>--        less.dumpLineNumbers = dumpLineNumbers[1];
>--    }
>--    less.watchTimer = setInterval(function () {
>--        if (less.watchMode) {
>--            loadStyleSheets(function (e, root, _, sheet, env) {
>--                if (root) {
>--                    createCSS(root.toCSS(), sheet, env.lastModified);
>--                }
>--            });
>--        }
>--    }, less.poll);
>--} else {
>--    less.optimization = 3;
>--}
>--
>--var cache;
>--
>--try {
>--    cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage;
>--} catch (_) {
>--    cache = null;
>--}
>--
>--//
>--// Get all <link> tags with the 'rel' attribute set to "stylesheet/less"
>--//
>--var links = document.getElementsByTagName('link');
>--var typePattern = /^text\/(x-)?less$/;
>--
>--less.sheets = [];
>--
>--for (var i = 0; i < links.length; i++) {
>--    if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
>--       (links[i].type.match(typePattern)))) {
>--        less.sheets.push(links[i]);
>--    }
>--}
>--
>--
>--less.refresh = function (reload) {
>--    var startTime, endTime;
>--    startTime = endTime = new(Date);
>--
>--    loadStyleSheets(function (e, root, _, sheet, env) {
>--        if (env.local) {
>--            log("loading " + sheet.href + " from cache.");
>--        } else {
>--            log("parsed " + sheet.href + " successfully.");
>--            createCSS(root.toCSS(), sheet, env.lastModified);
>--        }
>--        log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms');
>--        (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms');
>--        endTime = new(Date);
>--    }, reload);
>--
>--    loadStyles();
>--};
>--less.refreshStyles = loadStyles;
>--
>--less.refresh(less.env === 'development');
>--
>--function loadStyles() {
>--    var styles = document.getElementsByTagName('style');
>--    for (var i = 0; i < styles.length; i++) {
>--        if (styles[i].type.match(typePattern)) {
>--            new(less.Parser)({
>--                filename: document.location.href.replace(/#.*$/, ''),
>--                dumpLineNumbers: less.dumpLineNumbers
>--            }).parse(styles[i].innerHTML || '', function (e, tree) {
>--                var css = tree.toCSS();
>--                var style = styles[i];
>--                style.type = 'text/css';
>--                if (style.styleSheet) {
>--                    style.styleSheet.cssText = css;
>--                } else {
>--                    style.innerHTML = css;
>--                }
>--            });
>--        }
>--    }
>--}
>--
>--function loadStyleSheets(callback, reload) {
>--    for (var i = 0; i < less.sheets.length; i++) {
>--        loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1));
>--    }
>--}
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var contents  = sheet.contents || {};  // Passing a ref to top importing parser content cache trough 'sheet' arg.
>--    var url       = window.location.href.replace(/[#?].*$/, '');
>--    var href      = sheet.href.replace(/\?.*$/, '');
>--    var css       = cache && cache.getItem(href);
>--    var timestamp = cache && cache.getItem(href + ':timestamp');
>--    var styles    = { css: css, timestamp: timestamp };
>--
>--    // Stylesheets in IE don't always return the full path
>--    if (! /^[a-z-]+:/.test(href)) {
>--        if (href.charAt(0) == "/") {
>--            href = window.location.protocol + "//" + window.location.host + href;
>--        } else {
>--            href = url.slice(0, url.lastIndexOf('/') + 1) + href;
>--        }
>--    }
>--    xhr(sheet.href, sheet.type, function (data, lastModified) {
>--        if (!reload && styles && lastModified &&
>--           (new(Date)(lastModified).valueOf() ===
>--            new(Date)(styles.timestamp).valueOf())) {
>--            // Use local copy
>--            createCSS(styles.css, sheet);
>--            callback(null, null, data, sheet, { local: true, remaining: remaining });
>--        } else {
>--            // Use remote copy (re-parse)
>--            try {
>--                contents[href] = data;  // Updating top importing parser content cache
>--                new(less.Parser)({
>--                    optimization: less.optimization,
>--                    paths: [href.replace(/[\w\.-]+$/, '')],
>--                    mime: sheet.type,
>--                    filename: href,
>--                    'contents': contents,    // Passing top importing parser content cache ref down.
>--                    dumpLineNumbers: less.dumpLineNumbers
>--                }).parse(data, function (e, root) {
>--                    if (e) { return error(e, href) }
>--                    try {
>--                        callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining });
>--                        removeNode(document.getElementById('less-error-message:' + extractId(href)));
>--                    } catch (e) {
>--                        error(e, href);
>--                    }
>--                });
>--            } catch (e) {
>--                error(e, href);
>--            }
>--        }
>--    }, function (status, url) {
>--        throw new(Error)("Couldn't load " + url + " (" + status + ")");
>--    });
>--}
>--
>--function extractId(href) {
>--    return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' )  // Remove protocol & domain
>--               .replace(/^\//,                 '' )  // Remove root /
>--               .replace(/\?.*$/,               '' )  // Remove query
>--               .replace(/\.[^\.\/]+$/,         '' )  // Remove file extension
>--               .replace(/[^\.\w-]+/g,          '-')  // Replace illegal characters
>--               .replace(/\./g,                 ':'); // Replace dots with colons(for valid id)
>--}
>--
>--function createCSS(styles, sheet, lastModified) {
>--    var css;
>--
>--    // Strip the query-string
>--    var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : '';
>--
>--    // If there is no title set, use the filename, minus the extension
>--    var id = 'less:' + (sheet.title || extractId(href));
>--
>--    // If the stylesheet doesn't exist, create a new node
>--    if ((css = document.getElementById(id)) === null) {
>--        css = document.createElement('style');
>--        css.type = 'text/css';
>--        if( sheet.media ){ css.media = sheet.media; }
>--        css.id = id;
>--        var nextEl = sheet && sheet.nextSibling || null;
>--        document.getElementsByTagName('head')[0].insertBefore(css, nextEl);
>--    }
>--
>--    if (css.styleSheet) { // IE
>--        try {
>--            css.styleSheet.cssText = styles;
>--        } catch (e) {
>--            throw new(Error)("Couldn't reassign styleSheet.cssText.");
>--        }
>--    } else {
>--        (function (node) {
>--            if (css.childNodes.length > 0) {
>--                if (css.firstChild.nodeValue !== node.nodeValue) {
>--                    css.replaceChild(node, css.firstChild);
>--                }
>--            } else {
>--                css.appendChild(node);
>--            }
>--        })(document.createTextNode(styles));
>--    }
>--
>--    // Don't update the local store if the file wasn't modified
>--    if (lastModified && cache) {
>--        log('saving ' + href + ' to cache.');
>--        try {
>--            cache.setItem(href, styles);
>--            cache.setItem(href + ':timestamp', lastModified);
>--        } catch(e) {
>--            //TODO - could do with adding more robust error handling
>--            log('failed to save');
>--        }
>--    }
>--}
>--
>--function xhr(url, type, callback, errback) {
>--    var xhr = getXMLHttpRequest();
>--    var async = isFileProtocol ? less.fileAsync : less.async;
>--
>--    if (typeof(xhr.overrideMimeType) === 'function') {
>--        xhr.overrideMimeType('text/css');
>--    }
>--    xhr.open('GET', url, async);
>--    xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
>--    xhr.send(null);
>--
>--    if (isFileProtocol && !less.fileAsync) {
>--        if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
>--            callback(xhr.responseText);
>--        } else {
>--            errback(xhr.status, url);
>--        }
>--    } else if (async) {
>--        xhr.onreadystatechange = function () {
>--            if (xhr.readyState == 4) {
>--                handleResponse(xhr, callback, errback);
>--            }
>--        };
>--    } else {
>--        handleResponse(xhr, callback, errback);
>--    }
>--
>--    function handleResponse(xhr, callback, errback) {
>--        if (xhr.status >= 200 && xhr.status < 300) {
>--            callback(xhr.responseText,
>--                     xhr.getResponseHeader("Last-Modified"));
>--        } else if (typeof(errback) === 'function') {
>--            errback(xhr.status, url);
>--        }
>--    }
>--}
>--
>--function getXMLHttpRequest() {
>--    if (window.XMLHttpRequest) {
>--        return new(XMLHttpRequest);
>--    } else {
>--        try {
>--            return new(ActiveXObject)("MSXML2.XMLHTTP.3.0");
>--        } catch (e) {
>--            log("browser doesn't support AJAX.");
>--            return null;
>--        }
>--    }
>--}
>--
>--function removeNode(node) {
>--    return node && node.parentNode.removeChild(node);
>--}
>--
>--function log(str) {
>--    if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) }
>--}
>--
>--function error(e, href) {
>--    var id = 'less-error-message:' + extractId(href);
>--    var template = '<li><label>{line}</label><pre class="{class}">{content}</pre></li>';
>--    var elem = document.createElement('div'), timer, content, error = [];
>--    var filename = e.filename || href;
>--    var filenameNoPath = filename.match(/([^\/]+)$/)[1];
>--
>--    elem.id        = id;
>--    elem.className = "less-error-message";
>--
>--    content = '<h3>'  + (e.message || 'There is an error in your .less file') +
>--              '</h3>' + '<p>in <a href="' + filename   + '">' + filenameNoPath + "</a> ";
>--
>--    var errorline = function (e, i, classname) {
>--        if (e.extract[i]) {
>--            error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1))
>--                               .replace(/\{class\}/, classname)
>--                               .replace(/\{content\}/, e.extract[i]));
>--        }
>--    };
>--
>--    if (e.stack) {
>--        content += '<br/>' + e.stack.split('\n').slice(1).join('<br/>');
>--    } else if (e.extract) {
>--        errorline(e, 0, '');
>--        errorline(e, 1, 'line');
>--        errorline(e, 2, '');
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':</p>' +
>--                    '<ul>' + error.join('') + '</ul>';
>--    }
>--    elem.innerHTML = content;
>--
>--    // CSS for error messages
>--    createCSS([
>--        '.less-error-message ul, .less-error-message li {',
>--            'list-style-type: none;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message label {',
>--            'font-size: 12px;',
>--            'margin-right: 15px;',
>--            'padding: 4px 0;',
>--            'color: #cc7777;',
>--        '}',
>--        '.less-error-message pre {',
>--            'color: #dd6666;',
>--            'padding: 4px 0;',
>--            'margin: 0;',
>--            'display: inline-block;',
>--        '}',
>--        '.less-error-message pre.line {',
>--            'color: #ff0000;',
>--        '}',
>--        '.less-error-message h3 {',
>--            'font-size: 20px;',
>--            'font-weight: bold;',
>--            'padding: 15px 0 5px 0;',
>--            'margin: 0;',
>--        '}',
>--        '.less-error-message a {',
>--            'color: #10a',
>--        '}',
>--        '.less-error-message .error {',
>--            'color: red;',
>--            'font-weight: bold;',
>--            'padding-bottom: 2px;',
>--            'border-bottom: 1px dashed red;',
>--        '}'
>--    ].join('\n'), { title: 'error-message' });
>--
>--    elem.style.cssText = [
>--        "font-family: Arial, sans-serif",
>--        "border: 1px solid #e00",
>--        "background-color: #eee",
>--        "border-radius: 5px",
>--        "-webkit-border-radius: 5px",
>--        "-moz-border-radius: 5px",
>--        "color: #e00",
>--        "padding: 15px",
>--        "margin-bottom: 15px"
>--    ].join(';');
>--
>--    if (less.env == 'development') {
>--        timer = setInterval(function () {
>--            if (document.body) {
>--                if (document.getElementById(id)) {
>--                    document.body.replaceChild(elem, document.getElementById(id));
>--                } else {
>--                    document.body.insertBefore(elem, document.body.firstChild);
>--                }
>--                clearInterval(timer);
>--            }
>--        }, 10);
>--    }
>--}
>--
>--// amd.js
>--//
>--// Define Less as an AMD module.
>--if (typeof define === "function" && define.amd) {
>--    define("less", [], function () { return less; } );
>--}
>--})(window);
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>-\ No newline at end of file
>-diff --git a/dist/less-rhino-1.1.3.js b/dist/less-rhino-1.1.3.js
>-deleted file mode 100644
>-index b31b25f14dc54c124da7f48086a516e3d3cf13cb..0000000000000000000000000000000000000000
>---- a/dist/less-rhino-1.1.3.js
>-+++ /dev/null
>-@@ -1,2460 +0,0 @@
>--//
>--// Stub out `require` in rhino
>--//
>--function require(arg) {
>--    return less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof(window) === 'undefined') {
>--    if (typeof(exports) === 'undefined') {
>--        // Rhino
>--        less = {};
>--        tree = less.tree = {};
>--    } else {
>--        // Node.js
>--        less = exports,
>--        tree = require('less/tree');
>--    }
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                callback(root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            root = new(tree.Ruleset)([], $(this.parsers.primary));
>--            root.root = true;
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        lines = input.split('\n');
>--                        line = getLine(e.index);
>--
>--                        for (var n = e.index, column = -1;
>--                                 n >= 0 && input.charAt(n) !== '\n';
>--                                 n--) { column++ }
>--
>--                        throw {
>--                            type: e.type,
>--                            message: e.message,
>--                            filename: env.filename,
>--                            index: e.index,
>--                            line: typeof(line) === 'number' ? line + 1 : null,
>--                            callLine: e.call && (getLine(e.call) + 1),
>--                            callExtract: lines[getLine(e.call)],
>--                            stack: e.stack,
>--                            column: column,
>--                            extract: [
>--                                lines[line - 1],
>--                                lines[line],
>--                                lines[line + 1]
>--                            ]
>--                        };
>--                    }
>--                    if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--
>--                    function getLine(index) {
>--                        return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    name: "ParseError",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--                    if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--                    if (! $(')')) throw new(Error)("missing closing ) for url()");
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i);
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value;
>--
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    if (value = $(this.expression)) {
>--                                        params.push({ name: param.name, value: value });
>--                                    } else {
>--                                        throw new(Error)("Expected value");
>--                                    }
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset);
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^$opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    if (! $(')')) throw new(Error)("missing closing ) for alpha()");
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (e) { return new(tree.Element)(c, e) }
>--
>--                if (c.value && c.value[0] === '&') {
>--                  return new(tree.Element)(c, null);
>--                }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === '&') {
>--                    match = '&';
>--                    i++;
>--                    if(input.charAt(i) === ' ') {
>--                        match = '& ';
>--                    }
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(match);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) {
>--                    i += match[0].length - 1;
>--                    selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])];
>--                } else {
>--                    while (s = $(this.selector)) {
>--                        selectors.push(s);
>--                        $(this.comment);
>--                        if (! $(',')) { break }
>--                        $(this.comment);
>--                    }
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url)) &&
>--                    $(';')) {
>--                    return new(tree.Import)(path, imports);
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import'])) {
>--                    return value;
>--                } else if (name = $(/^@media|@page|@-[-a-z]+/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while ((op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (typeof(window) !== 'undefined' /* browser */ || typeof(exports) === 'undefined' /* rhino */) {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math.round(number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math.round(n);
>--        } else {
>--	    throw {
>--                error: "RuntimeError",
>--                message: "math functions take numbers as parameters"
>--            };
>--        }
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { message: "error evaluating function `" + this.name + "`",
>--                        index: this.index };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else if (rgb.length == 8) {
>--        this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0;
>--        this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    }
>--};
>--
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--    this.value = value ? value.trim() : "";
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + this.value;
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else if (value === '& ') {
>--        this.value = '& ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        '& ' : ' ',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports) {
>--    var that = this;
>--
>--    this._path = path;
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (root) {
>--            if (! root) {
>--                throw new(Error)("Error parsing " + that.path);
>--            }
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function () {
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset;
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    eval: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), context, _arguments = [];
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return v.value || v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + ";";
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > 1) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                this.joinSelectors( paths, context, this.selectors );
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function( paths, context, selectors ) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function( paths, context, selector ) {
>--        var before = [], after = [], beforeElements = [], afterElements = [], hasParentSelector = false, el;
>--
>--        for (var i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.combinator.value[0] === '&') {
>--                hasParentSelector = true;
>--            }
>--            if(!hasParentSelector) {
>--                beforeElements.push(el);
>--            } else {
>--                afterElements.push(el);
>--            }
>--        }
>--
>--        if(!hasParentSelector) {
>--            afterElements = beforeElements;
>--            beforeElements = [];
>--        }
>--
>--        if(beforeElements.length > 0) {
>--            before.push(new (tree.Selector)(beforeElements));
>--        }
>--        if(afterElements.length > 0) {
>--            after.push(new (tree.Selector)(afterElements));
>--        }
>--
>--        for (var c = 0; c < context.length; c++) {
>--            paths.push(before.concat(context[c]).concat(after));
>--        }
>--    }
>--};
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    if (this.elements[0].value === other.elements[0].value) {
>--        return true;
>--    } else {
>--        return false;
>--    }
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('less/tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('less/tree'));
>--require('less/tree').find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--require('less/tree').jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--var name;
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var sheetName = name.slice(0, name.lastIndexOf('/') + 1) + sheet.href;
>--    var input = readFile(sheetName);
>--    var parser = new less.Parser();
>--    parser.parse(input, function (e, root) {
>--        if (e) {
>--            print("Error: " + e);
>--            quit(1);
>--        }
>--        callback(root, sheet, { local: false, lastModified: 0, remaining: remaining });
>--    });
>--
>--    // callback({}, sheet, { local: true, remaining: remaining });
>--}
>--
>--function writeFile(filename, content) {
>--    var fstream = new java.io.FileWriter(filename);
>--    var out = new java.io.BufferedWriter(fstream);
>--    out.write(content);
>--    out.close();
>--}
>--
>--// Command line integration via Rhino
>--(function (args) {
>--    name = args[0];
>--    var output = args[1];
>--
>--    if (!name) {
>--        print('No files present in the fileset; Check your pattern match in build.xml');
>--        quit(1);
>--    }
>--    path = name.split("/");path.pop();path=path.join("/")
>--
>--    var input = readFile(name);
>--
>--    if (!input) {
>--        print('lesscss: couldn\'t open file ' + name);
>--        quit(1);
>--    }
>--
>--    var result;
>--    var parser = new less.Parser();
>--    parser.parse(input, function (e, root) {
>--        if (e) {
>--            quit(1);
>--        } else {
>--            result = root.toCSS();
>--            if (output) {
>--                writeFile(output, result);
>--                print("Written to " + output);
>--            } else {
>--                print(result);
>--            }
>--            quit(0);
>--        }
>--    });
>--    print("done");
>--}(arguments));
>-diff --git a/dist/less-rhino-1.1.5.js b/dist/less-rhino-1.1.5.js
>-deleted file mode 100644
>-index e755f6310290b9d7474346a8a2a7a7afbece78e6..0000000000000000000000000000000000000000
>---- a/dist/less-rhino-1.1.5.js
>-+++ /dev/null
>-@@ -1,2481 +0,0 @@
>--//
>--// Stub out `require` in rhino
>--//
>--function require(arg) {
>--    return less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
>--    // Rhino
>--    // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
>--    less = {};
>--    tree = less.tree = {};
>--    less.mode = 'rhino';
>--} else if (typeof(window) === 'undefined') {
>--    // Node.js
>--    less = exports,
>--    tree = require('./tree');
>--    less.mode = 'rhino';
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--    less.mode = 'browser';
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        mime:  env && env.mime,         // MIME type of .less files
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--                that.files[path] = root;                        // Store the root
>--
>--                callback(root);
>--
>--                if (that.queue.length === 0) { finish() }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, c, index, endIndex, k, mem;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            mem = i += length;
>--            endIndex = i + chunks[j].length - length;
>--
>--            while (i < endIndex) {
>--                c = input.charCodeAt(i);
>--                if (! (c === 32 || c === 10 || c === 9)) { break }
>--                i++;
>--            }
>--            chunks[j] = chunks[j].slice(length + (i - mem));
>--            current = i;
>--
>--            if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            chunks = [];
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /[^"'`\{\}\/]+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam,
>--                    inString;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = i;
>--
>--                    if (!inString && !inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--
>--                    if        (c === '{' && !inString && !inParam) { level ++;
>--                        chunk.push(c);
>--                    } else if (c === '}' && !inString && !inParam) { level --;
>--                        chunk.push(c);
>--                        chunks[++j] = chunk = [];
>--                    } else if (c === '(' && !inString && !inParam) {
>--                        chunk.push(c);
>--                        inParam = true;
>--                    } else if (c === ')' && !inString && inParam) {
>--                        chunk.push(c);
>--                        inParam = false;
>--                    } else {
>--                        if (c === '"' || c === "'" || c === '`') {
>--                            if (! inString) {
>--                                inString = c;
>--                            } else {
>--                                inString = inString === c ? false : inString;
>--                            }
>--                        }
>--                        chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    throw {
>--                        type: 'Syntax',
>--                        message: "Missing closing `}`",
>--                        filename: env.filename
>--                    };
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            root = new(tree.Ruleset)([], $(this.parsers.primary));
>--            root.root = true;
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [];
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false });
>--                    } catch (e) {
>--                        lines = input.split('\n');
>--                        line = getLine(e.index);
>--
>--                        for (var n = e.index, column = -1;
>--                                 n >= 0 && input.charAt(n) !== '\n';
>--                                 n--) { column++ }
>--
>--                        throw {
>--                            type: e.type,
>--                            message: e.message,
>--                            filename: env.filename,
>--                            index: e.index,
>--                            line: typeof(line) === 'number' ? line + 1 : null,
>--                            callLine: e.call && (getLine(e.call) + 1),
>--                            callExtract: lines[getLine(e.call)],
>--                            stack: e.stack,
>--                            column: column,
>--                            extract: [
>--                                lines[line - 1],
>--                                lines[line],
>--                                lines[line + 1]
>--                            ]
>--                        };
>--                    }
>--                    if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--
>--                    function getLine(index) {
>--                        return index ? (input.slice(0, index).match(/\n/g) || "").length : null;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    name: "ParseError",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function () { callback(error, root) };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--                    if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { return new(tree.Keyword)(k) }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, args, index = i;
>--
>--                    if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1].toLowerCase();
>--
>--                    if (name === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (name === 'alpha') { return $(this.alpha) }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url\(/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || "";
>--                    if (! $(')')) throw new(Error)("missing closing ) for url()");
>--
>--                    return new(tree.URL)((value.value || value.data || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                dataURI: function () {
>--                    var obj;
>--
>--                    if ($(/^data:/)) {
>--                        obj         = {};
>--                        obj.mime    = $(/^[^\/]+\/[^,;)]+/)     || '';
>--                        obj.charset = $(/^;\s*charset=[^,;)]+/) || '';
>--                        obj.base64  = $(/^;\s*base64/)          || '';
>--                        obj.data    = $(/^,\s*[^)]+/);
>--
>--                        if (obj.data) { return obj }
>--                    }
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args, index = i, s = input.charAt(i);
>--
>--                    if (s !== '.' && s !== '#') { return }
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e, i));
>--                        c = $('>');
>--                    }
>--                    $('(') && (args = $(this.entities.arguments)) && $(')');
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index);
>--                    }
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value;
>--
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        while (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                 || $(this.entities.keyword)) {
>--                            // Variable
>--                            if (param instanceof tree.Variable) {
>--                                if ($(':')) {
>--                                    if (value = $(this.expression)) {
>--                                        params.push({ name: param.name, value: value });
>--                                    } else {
>--                                        throw new(Error)("Expected value");
>--                                    }
>--                                } else {
>--                                    params.push({ name: param.name });
>--                                }
>--                            } else {
>--                                params.push({ value: param });
>--                            }
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset);
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^\(opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    if (! $(')')) throw new(Error)("missing closing ) for alpha()");
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c;
>--
>--                c = $(this.combinator);
>--                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\$?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) ||
>--                    $('*') || $(this.attribute) || $(/^\([^)@]+$/);
>--
>--                if (e) { return new(tree.Element)(c, e, i) }
>--
>--                if (c.value && c.value.charAt(0) === '&') {
>--                    return new(tree.Element)(c, null, i);
>--                }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (c === '&') {
>--                    match = '&';
>--                    i++;
>--                    if(input.charAt(i) === ' ') {
>--                        match = '& ';
>--                    }
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)(match);
>--                } else if (c === ':' && input.charAt(i + 1) === ':') {
>--                    i += 2;
>--                    while (input.charAt(i) === ' ') { i++ }
>--                    return new(tree.Combinator)('::');
>--                } else if (input.charAt(i - 1) === ' ') {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match;
>--                save();
>--
>--                while (s = $(this.selector)) {
>--                    selectors.push(s);
>--                    $(this.comment);
>--                    if (! $(',')) { break }
>--                    $(this.comment);
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    return new(tree.Ruleset)(selectors, rules);
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path;
>--                if ($(/^@import\s+/) &&
>--                    (path = $(this.entities.quoted) || $(this.entities.url)) &&
>--                    $(';')) {
>--                    return new(tree.Import)(path, imports);
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, types;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import'])) {
>--                    return value;
>--                } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-)?keyframes/)) {
>--                    types = ($(/^[^{]+/) || '').trim();
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name + " " + types, rules);
>--                    }
>--                } else if (name = $(/^@[-a-z]+/)) {
>--                    if (name === '@font-face') {
>--                        if (rules = $(this.block)) {
>--                            return new(tree.Directive)(name, rules);
>--                        }
>--                    } else if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while ((op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (less.mode === 'browser' || less.mode === 'rhino') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (path.charAt(0) !== '/' && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fade: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a = amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math.round(number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math.round(n);
>--        } else {
>--	    throw {
>--                error: "RuntimeError",
>--                message: "math functions take numbers as parameters"
>--            };
>--        }
>--    },
>--    argb: function (color) {
>--        return new(tree.Anonymous)(color.toARGB());
>--
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('./tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { message: "error evaluating function `" + this.name + "`",
>--                        index: this.index };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    },
>--    toARGB: function () {
>--        var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
>--        return '#' + argb.map(function (i) {
>--            i = Math.round(i);
>--            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--            return i.length === 1 ? '0' + i : i;
>--        }).join('');
>--    }
>--};
>--
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        env.frames.unshift(this);
>--        this.ruleset = this.ruleset && this.ruleset.eval(env);
>--        env.frames.shift();
>--        return this;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value, index) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--    this.value = value ? value.trim() : "";
>--    this.index = index;
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--    return this.combinator.toCSS(env || {}) + this.value;
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else if (value === '& ') {
>--        this.value = '& ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        '&' : '',
>--        '& ' : ' ',
>--        ':' : ' :',
>--        '::': '::',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports) {
>--    var that = this;
>--
>--    this._path = path;
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css(\?.*)?$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (root) {
>--            if (! root) {
>--                throw new(Error)("Error parsing " + that.path);
>--            }
>--            that.root = root;
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function () {
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset;
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) { return a.eval(env) });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: e.index, stack: e.stack, call: this.index };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index };
>--                }
>--            }
>--        }
>--        throw { message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    eval: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), context, _arguments = [];
>--
>--        for (var i = 0, val; i < this.params.length; i++) {
>--            if (this.params[i].name) {
>--                if (val = (args && args[i]) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env)));
>--                } else {
>--                    throw { message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push(args[i] || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len;
>--
>--        if (argsLength < this.required)                               { return false }
>--        if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return v.value || v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + ";";
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0));
>--
>--        ruleset.root = this.root;
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype.splice
>--                         .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                Array.prototype.splice
>--                     .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env)));
>--            }
>--        }
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > rule.selectors[j].elements.length) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            rule;
>--
>--        if (! this.root) {
>--            if (context.length === 0) {
>--                paths = this.selectors.map(function (s) { return [s] });
>--            } else {
>--                this.joinSelectors( paths, context, this.selectors );
>--            }
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', '));
>--                css.push(selector,
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('') + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--        var before = [], after = [], beforeElements = [],
>--            afterElements = [], hasParentSelector = false, el;
>--
>--        for (var i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.combinator.value.charAt(0) === '&') {
>--                hasParentSelector = true;
>--            }
>--            if (hasParentSelector) afterElements.push(el);
>--            else                   beforeElements.push(el);
>--        }
>--
>--        if (! hasParentSelector) {
>--            afterElements = beforeElements;
>--            beforeElements = [];
>--        }
>--
>--        if (beforeElements.length > 0) {
>--            before.push(new(tree.Selector)(beforeElements));
>--        }
>--
>--        if (afterElements.length > 0) {
>--            after.push(new(tree.Selector)(afterElements));
>--        }
>--
>--        for (var c = 0; c < context.length; c++) {
>--            paths.push(before.concat(context[c]).concat(after));
>--        }
>--    }
>--};
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--    if (this.elements[0].combinator.value === "") {
>--        this.elements[0].combinator.value = ' ';
>--    }
>--};
>--tree.Selector.prototype.match = function (other) {
>--    var len  = this.elements.length,
>--        olen = other.elements.length,
>--        max  = Math.min(len, olen);
>--
>--    if (len < olen) {
>--        return false;
>--    } else {
>--        for (var i = 0; i < max; i++) {
>--            if (this.elements[i].value !== other.elements[i].value) {
>--                return false;
>--            }
>--        }
>--    }
>--    return true;
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--
>--    return this._css = this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    if (val.data) {
>--        this.attrs = val;
>--    } else {
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (!/^(?:https?:\/\/|file:\/\/|data:)?/.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
>--            val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--        this.value = val;
>--        this.paths = paths;
>--    }
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data
>--                                    : this.value.toCSS()) + ")";
>--    },
>--    eval: function (ctx) {
>--        return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index) { this.name = name, this.index = index };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { message: "variable " + name + " is undefined",
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--require('./tree').find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--require('./tree').jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--var name;
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var sheetName = name.slice(0, name.lastIndexOf('/') + 1) + sheet.href;
>--    var input = readFile(sheetName);
>--    var parser = new less.Parser();
>--    parser.parse(input, function (e, root) {
>--        if (e) {
>--            print("Error: " + e);
>--            quit(1);
>--        }
>--        callback(root, sheet, { local: false, lastModified: 0, remaining: remaining });
>--    });
>--
>--    // callback({}, sheet, { local: true, remaining: remaining });
>--}
>--
>--function writeFile(filename, content) {
>--    var fstream = new java.io.FileWriter(filename);
>--    var out = new java.io.BufferedWriter(fstream);
>--    out.write(content);
>--    out.close();
>--}
>--
>--// Command line integration via Rhino
>--(function (args) {
>--    name = args[0];
>--    var output = args[1];
>--
>--    if (!name) {
>--        print('No files present in the fileset; Check your pattern match in build.xml');
>--        quit(1);
>--    }
>--    path = name.split("/");path.pop();path=path.join("/")
>--
>--    var input = readFile(name);
>--
>--    if (!input) {
>--        print('lesscss: couldn\'t open file ' + name);
>--        quit(1);
>--    }
>--
>--    var result;
>--    var parser = new less.Parser();
>--    parser.parse(input, function (e, root) {
>--        if (e) {
>--            quit(1);
>--        } else {
>--            result = root.toCSS();
>--            if (output) {
>--                writeFile(output, result);
>--                print("Written to " + output);
>--            } else {
>--                print(result);
>--            }
>--            quit(0);
>--        }
>--    });
>--    print("done");
>--}(arguments));
>-diff --git a/dist/less-rhino-1.3.1.js b/dist/less-rhino-1.3.1.js
>-deleted file mode 100644
>-index 1ebe0ea4b6822a1e6a6a8660088fb8afb0b662b1..0000000000000000000000000000000000000000
>---- a/dist/less-rhino-1.3.1.js
>-+++ /dev/null
>-@@ -1,3725 +0,0 @@
>--//
>--// Stub out `require` in rhino
>--//
>--function require(arg) {
>--    return less[arg.split('/')[1]];
>--};
>--
>--
>--// ecma-5.js
>--//
>--// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License
>--// -- tlrobinson Tom Robinson
>--// dantman Daniel Friesen
>--
>--//
>--// Array
>--//
>--if (!Array.isArray) {
>--    Array.isArray = function(obj) {
>--        return Object.prototype.toString.call(obj) === "[object Array]" ||
>--               (obj instanceof Array);
>--    };
>--}
>--if (!Array.prototype.forEach) {
>--    Array.prototype.forEach =  function(block, thisObject) {
>--        var len = this.length >>> 0;
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                block.call(thisObject, this[i], i, this);
>--            }
>--        }
>--    };
>--}
>--if (!Array.prototype.map) {
>--    Array.prototype.map = function(fun /*, thisp*/) {
>--        var len = this.length >>> 0;
>--        var res = new Array(len);
>--        var thisp = arguments[1];
>--
>--        for (var i = 0; i < len; i++) {
>--            if (i in this) {
>--                res[i] = fun.call(thisp, this[i], i, this);
>--            }
>--        }
>--        return res;
>--    };
>--}
>--if (!Array.prototype.filter) {
>--    Array.prototype.filter = function (block /*, thisp */) {
>--        var values = [];
>--        var thisp = arguments[1];
>--        for (var i = 0; i < this.length; i++) {
>--            if (block.call(thisp, this[i])) {
>--                values.push(this[i]);
>--            }
>--        }
>--        return values;
>--    };
>--}
>--if (!Array.prototype.reduce) {
>--    Array.prototype.reduce = function(fun /*, initial*/) {
>--        var len = this.length >>> 0;
>--        var i = 0;
>--
>--        // no value to return if no initial value and an empty array
>--        if (len === 0 && arguments.length === 1) throw new TypeError();
>--
>--        if (arguments.length >= 2) {
>--            var rv = arguments[1];
>--        } else {
>--            do {
>--                if (i in this) {
>--                    rv = this[i++];
>--                    break;
>--                }
>--                // if array contains no values, no initial value to return
>--                if (++i >= len) throw new TypeError();
>--            } while (true);
>--        }
>--        for (; i < len; i++) {
>--            if (i in this) {
>--                rv = fun.call(null, rv, this[i], i, this);
>--            }
>--        }
>--        return rv;
>--    };
>--}
>--if (!Array.prototype.indexOf) {
>--    Array.prototype.indexOf = function (value /*, fromIndex */ ) {
>--        var length = this.length;
>--        var i = arguments[1] || 0;
>--
>--        if (!length)     return -1;
>--        if (i >= length) return -1;
>--        if (i < 0)       i += length;
>--
>--        for (; i < length; i++) {
>--            if (!Object.prototype.hasOwnProperty.call(this, i)) { continue }
>--            if (value === this[i]) return i;
>--        }
>--        return -1;
>--    };
>--}
>--
>--//
>--// Object
>--//
>--if (!Object.keys) {
>--    Object.keys = function (object) {
>--        var keys = [];
>--        for (var name in object) {
>--            if (Object.prototype.hasOwnProperty.call(object, name)) {
>--                keys.push(name);
>--            }
>--        }
>--        return keys;
>--    };
>--}
>--
>--//
>--// String
>--//
>--if (!String.prototype.trim) {
>--    String.prototype.trim = function () {
>--        return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, '');
>--    };
>--}
>--var less, tree;
>--
>--if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") {
>--    // Rhino
>--    // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88
>--    if (typeof(window) === 'undefined') { less = {} }
>--    else                                { less = window.less = {} }
>--    tree = less.tree = {};
>--    less.mode = 'rhino';
>--} else if (typeof(window) === 'undefined') {
>--    // Node.js
>--    less = exports,
>--    tree = require('./tree');
>--    less.mode = 'node';
>--} else {
>--    // Browser
>--    if (typeof(window.less) === 'undefined') { window.less = {} }
>--    less = window.less,
>--    tree = window.less.tree = {};
>--    less.mode = 'browser';
>--}
>--//
>--// less.js - parser
>--//
>--//    A relatively straight-forward predictive parser.
>--//    There is no tokenization/lexing stage, the input is parsed
>--//    in one sweep.
>--//
>--//    To make the parser fast enough to run in the browser, several
>--//    optimization had to be made:
>--//
>--//    - Matching and slicing on a huge input is often cause of slowdowns.
>--//      The solution is to chunkify the input into smaller strings.
>--//      The chunks are stored in the `chunks` var,
>--//      `j` holds the current chunk index, and `current` holds
>--//      the index of the current chunk in relation to `input`.
>--//      This gives us an almost 4x speed-up.
>--//
>--//    - In many cases, we don't need to match individual tokens;
>--//      for example, if a value doesn't hold any variables, operations
>--//      or dynamic references, the parser can effectively 'skip' it,
>--//      treating it as a literal.
>--//      An example would be '1px solid #000' - which evaluates to itself,
>--//      we don't need to know what the individual components are.
>--//      The drawback, of course is that you don't get the benefits of
>--//      syntax-checking on the CSS. This gives us a 50% speed-up in the parser,
>--//      and a smaller speed-up in the code-gen.
>--//
>--//
>--//    Token matching is done with the `$` function, which either takes
>--//    a terminal string or regexp, or a non-terminal function to call.
>--//    It also takes care of moving all the indices forwards.
>--//
>--//
>--less.Parser = function Parser(env) {
>--    var input,       // LeSS input string
>--        i,           // current index in `input`
>--        j,           // current chunk
>--        temp,        // temporarily holds a chunk's state, for backtracking
>--        memo,        // temporarily holds `i`, when backtracking
>--        furthest,    // furthest index the parser has gone to
>--        chunks,      // chunkified input
>--        current,     // index of current chunk, in `input`
>--        parser;
>--
>--    var that = this;
>--
>--    // Top parser on an import tree must be sure there is one "env"
>--    // which will then be passed arround by reference.
>--    var env = env || { };
>--    if (!env.contents) { env.contents={}; }  // env.contents must be passed arround with top env
>--
>--    // This function is called after all files
>--    // have been imported through `@import`.
>--    var finish = function () {};
>--
>--    var imports = this.imports = {
>--        paths: env && env.paths || [],  // Search paths, when importing
>--        queue: [],                      // Files which haven't been imported yet
>--        files: {},                      // Holds the imported parse trees
>--        contents: env.contents,         // Holds the imported file contents
>--        mime:  env && env.mime,         // MIME type of .less files
>--        error: null,                    // Error in parsing/evaluating an import
>--        push: function (path, callback) {
>--            var that = this;
>--            this.queue.push(path);
>--
>--            //
>--            // Import a file asynchronously
>--            //
>--            less.Parser.importer(path, this.paths, function (e, root) {
>--                that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue
>--
>--                var imported = path in that.files;
>--
>--                that.files[path] = root;                        // Store the root
>--
>--                if (e && !that.error) { that.error = e }
>--
>--                callback(e, root, imported);
>--
>--                if (that.queue.length === 0) { finish(e) }       // Call `finish` if we're done importing
>--            }, env);
>--        }
>--    };
>--
>--    function save()    { temp = chunks[j], memo = i, current = i }
>--    function restore() { chunks[j] = temp, i = memo, current = i }
>--
>--    function sync() {
>--        if (i > current) {
>--            chunks[j] = chunks[j].slice(i - current);
>--            current = i;
>--        }
>--    }
>--    function isWhitespace(c) {
>--        // Could change to \s?
>--        var code = c.charCodeAt(0);
>--        return code === 32 || code === 10 || code === 9;
>--    }
>--    //
>--    // Parse from a token, regexp or string, and move forward if match
>--    //
>--    function $(tok) {
>--        var match, args, length, index, k;
>--
>--        //
>--        // Non-terminal
>--        //
>--        if (tok instanceof Function) {
>--            return tok.call(parser.parsers);
>--        //
>--        // Terminal
>--        //
>--        //     Either match a single character in the input,
>--        //     or match a regexp in the current chunk (chunk[j]).
>--        //
>--        } else if (typeof(tok) === 'string') {
>--            match = input.charAt(i) === tok ? tok : null;
>--            length = 1;
>--            sync ();
>--        } else {
>--            sync ();
>--
>--            if (match = tok.exec(chunks[j])) {
>--                length = match[0].length;
>--            } else {
>--                return null;
>--            }
>--        }
>--
>--        // The match is confirmed, add the match length to `i`,
>--        // and consume any extra white-space characters (' ' || '\n')
>--        // which come after that. The reason for this is that LeSS's
>--        // grammar is mostly white-space insensitive.
>--        //
>--        if (match) {
>--            skipWhitespace(length);
>--
>--            if(typeof(match) === 'string') {
>--                return match;
>--            } else {
>--                return match.length === 1 ? match[0] : match;
>--            }
>--        }
>--    }
>--
>--    function skipWhitespace(length) {
>--        var oldi = i, oldj = j,
>--            endIndex = i + chunks[j].length,
>--            mem = i += length;
>--
>--        while (i < endIndex) {
>--            if (! isWhitespace(input.charAt(i))) { break }
>--            i++;
>--        }
>--        chunks[j] = chunks[j].slice(length + (i - mem));
>--        current = i;
>--
>--        if (chunks[j].length === 0 && j < chunks.length - 1) { j++ }
>--
>--        return oldi !== i || oldj !== j;
>--    }
>--
>--    function expect(arg, msg) {
>--        var result = $(arg);
>--        if (! result) {
>--            error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'"
>--                                                   : "unexpected token"));
>--        } else {
>--            return result;
>--        }
>--    }
>--
>--    function error(msg, type) {
>--        throw { index: i, type: type || 'Syntax', message: msg };
>--    }
>--
>--    // Same as $(), but don't change the state of the parser,
>--    // just return the match.
>--    function peek(tok) {
>--        if (typeof(tok) === 'string') {
>--            return input.charAt(i) === tok;
>--        } else {
>--            if (tok.test(chunks[j])) {
>--                return true;
>--            } else {
>--                return false;
>--            }
>--        }
>--    }
>--
>--    function getInput(e, env) {
>--        if (e.filename && env.filename && (e.filename !== env.filename)) {
>--            return parser.imports.contents[e.filename];
>--        } else {
>--            return input;
>--        }
>--    }
>--
>--    function getLocation(index, input) {
>--        for (var n = index, column = -1;
>--                 n >= 0 && input.charAt(n) !== '\n';
>--                 n--) { column++ }
>--
>--        return { line:   typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null,
>--                 column: column };
>--    }
>--
>--    function getFileName(e) {
>--        if(less.mode === 'browser' || less.mode === 'rhino')
>--            return e.filename;
>--        else
>--            return require('path').resolve(e.filename);
>--    }
>--
>--    function getDebugInfo(index, inputStream, e) {
>--        return {
>--            lineNumber: getLocation(index, inputStream).line + 1,
>--            fileName: getFileName(e)
>--        };
>--    }
>--
>--    function LessError(e, env) {
>--        var input = getInput(e, env),
>--            loc = getLocation(e.index, input),
>--            line = loc.line,
>--            col  = loc.column,
>--            lines = input.split('\n');
>--
>--        this.type = e.type || 'Syntax';
>--        this.message = e.message;
>--        this.filename = e.filename || env.filename;
>--        this.index = e.index;
>--        this.line = typeof(line) === 'number' ? line + 1 : null;
>--        this.callLine = e.call && (getLocation(e.call, input).line + 1);
>--        this.callExtract = lines[getLocation(e.call, input).line];
>--        this.stack = e.stack;
>--        this.column = col;
>--        this.extract = [
>--            lines[line - 1],
>--            lines[line],
>--            lines[line + 1]
>--        ];
>--    }
>--
>--    this.env = env = env || {};
>--
>--    // The optimization level dictates the thoroughness of the parser,
>--    // the lower the number, the less nodes it will create in the tree.
>--    // This could matter for debugging, or if you want to access
>--    // the individual nodes in the tree.
>--    this.optimization = ('optimization' in this.env) ? this.env.optimization : 1;
>--
>--    this.env.filename = this.env.filename || null;
>--
>--    //
>--    // The Parser
>--    //
>--    return parser = {
>--
>--        imports: imports,
>--        //
>--        // Parse an input string into an abstract syntax tree,
>--        // call `callback` when done.
>--        //
>--        parse: function (str, callback) {
>--            var root, start, end, zone, line, lines, buff = [], c, error = null;
>--
>--            i = j = current = furthest = 0;
>--            input = str.replace(/\r\n/g, '\n');
>--
>--            // Remove potential UTF Byte Order Mark
>--            input = input.replace(/^\uFEFF/, '');
>--
>--            // Split the input into chunks.
>--            chunks = (function (chunks) {
>--                var j = 0,
>--                    skip = /(?:@\{[\w-]+\}|[^"'`\{\}\/\\])+/g,
>--                    comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g,
>--                    string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`]|\\.)*)`/g,
>--                    level = 0,
>--                    match,
>--                    chunk = chunks[0],
>--                    inParam;
>--
>--                for (var i = 0, c, cc; i < input.length; i++) {
>--                    skip.lastIndex = i;
>--                    if (match = skip.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                        }
>--                    }
>--                    c = input.charAt(i);
>--                    comment.lastIndex = string.lastIndex = i;
>--
>--                    if (match = string.exec(input)) {
>--                        if (match.index === i) {
>--                            i += match[0].length;
>--                            chunk.push(match[0]);
>--                            c = input.charAt(i);
>--                        }
>--                    }
>--
>--                    if (!inParam && c === '/') {
>--                        cc = input.charAt(i + 1);
>--                        if (cc === '/' || cc === '*') {
>--                            if (match = comment.exec(input)) {
>--                                if (match.index === i) {
>--                                    i += match[0].length;
>--                                    chunk.push(match[0]);
>--                                    c = input.charAt(i);
>--                                }
>--                            }
>--                        }
>--                    }
>--                    
>--                    switch (c) {
>--                        case '{': if (! inParam) { level ++;        chunk.push(c);                           break }
>--                        case '}': if (! inParam) { level --;        chunk.push(c); chunks[++j] = chunk = []; break }
>--                        case '(': if (! inParam) { inParam = true;  chunk.push(c);                           break }
>--                        case ')': if (  inParam) { inParam = false; chunk.push(c);                           break }
>--                        default:                                    chunk.push(c);
>--                    }
>--                }
>--                if (level > 0) {
>--                    error = new(LessError)({
>--                        index: i,
>--                        type: 'Parse',
>--                        message: "missing closing `}`",
>--                        filename: env.filename
>--                    }, env);
>--                }
>--
>--                return chunks.map(function (c) { return c.join('') });;
>--            })([[]]);
>--
>--            if (error) {
>--                return callback(error);
>--            }
>--
>--            // Start with the primary rule.
>--            // The whole syntax tree is held under a Ruleset node,
>--            // with the `root` property set to true, so no `{}` are
>--            // output. The callback is called when the input is parsed.
>--            try {
>--                root = new(tree.Ruleset)([], $(this.parsers.primary));
>--                root.root = true;
>--            } catch (e) {
>--                return callback(new(LessError)(e, env));
>--            }
>--
>--            root.toCSS = (function (evaluate) {
>--                var line, lines, column;
>--
>--                return function (options, variables) {
>--                    var frames = [], importError;
>--
>--                    options = options || {};
>--                    //
>--                    // Allows setting variables with a hash, so:
>--                    //
>--                    //   `{ color: new(tree.Color)('#f01') }` will become:
>--                    //
>--                    //   new(tree.Rule)('@color',
>--                    //     new(tree.Value)([
>--                    //       new(tree.Expression)([
>--                    //         new(tree.Color)('#f01')
>--                    //       ])
>--                    //     ])
>--                    //   )
>--                    //
>--                    if (typeof(variables) === 'object' && !Array.isArray(variables)) {
>--                        variables = Object.keys(variables).map(function (k) {
>--                            var value = variables[k];
>--
>--                            if (! (value instanceof tree.Value)) {
>--                                if (! (value instanceof tree.Expression)) {
>--                                    value = new(tree.Expression)([value]);
>--                                }
>--                                value = new(tree.Value)([value]);
>--                            }
>--                            return new(tree.Rule)('@' + k, value, false, 0);
>--                        });
>--                        frames = [new(tree.Ruleset)(null, variables)];
>--                    }
>--
>--                    try {
>--                        var css = evaluate.call(this, { frames: frames })
>--                                          .toCSS([], { compress: options.compress || false, dumpLineNumbers: env.dumpLineNumbers });
>--                    } catch (e) {
>--                        throw new(LessError)(e, env);
>--                    }
>--
>--                    if ((importError = parser.imports.error)) { // Check if there was an error during importing
>--                        if (importError instanceof LessError) throw importError;
>--                        else                                  throw new(LessError)(importError, env);
>--                    }
>--
>--                    if (options.yuicompress && less.mode === 'node') {
>--                        return require('./cssmin').compressor.cssmin(css);
>--                    } else if (options.compress) {
>--                        return css.replace(/(\s)+/g, "$1");
>--                    } else {
>--                        return css;
>--                    }
>--                };
>--            })(root.eval);
>--
>--            // If `i` is smaller than the `input.length - 1`,
>--            // it means the parser wasn't able to parse the whole
>--            // string, so we've got a parsing error.
>--            //
>--            // We try to extract a \n delimited string,
>--            // showing the line where the parse error occured.
>--            // We split it up into two parts (the part which parsed,
>--            // and the part which didn't), so we can color them differently.
>--            if (i < input.length - 1) {
>--                i = furthest;
>--                lines = input.split('\n');
>--                line = (input.slice(0, i).match(/\n/g) || "").length + 1;
>--
>--                for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ }
>--
>--                error = {
>--                    type: "Parse",
>--                    message: "Syntax Error on line " + line,
>--                    index: i,
>--                    filename: env.filename,
>--                    line: line,
>--                    column: column,
>--                    extract: [
>--                        lines[line - 2],
>--                        lines[line - 1],
>--                        lines[line]
>--                    ]
>--                };
>--            }
>--
>--            if (this.imports.queue.length > 0) {
>--                finish = function (e) {
>--                    if (e) callback(e);
>--                    else callback(null, root);
>--                };
>--            } else {
>--                callback(error, root);
>--            }
>--        },
>--
>--        //
>--        // Here in, the parsing rules/functions
>--        //
>--        // The basic structure of the syntax tree generated is as follows:
>--        //
>--        //   Ruleset ->  Rule -> Value -> Expression -> Entity
>--        //
>--        // Here's some LESS code:
>--        //
>--        //    .class {
>--        //      color: #fff;
>--        //      border: 1px solid #000;
>--        //      width: @w + 4px;
>--        //      > .child {...}
>--        //    }
>--        //
>--        // And here's what the parse tree might look like:
>--        //
>--        //     Ruleset (Selector '.class', [
>--        //         Rule ("color",  Value ([Expression [Color #fff]]))
>--        //         Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
>--        //         Rule ("width",  Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
>--        //         Ruleset (Selector [Element '>', '.child'], [...])
>--        //     ])
>--        //
>--        //  In general, most rules will try to parse a token with the `$()` function, and if the return
>--        //  value is truly, will return a new node, of the relevant type. Sometimes, we need to check
>--        //  first, before parsing, that's when we use `peek()`.
>--        //
>--        parsers: {
>--            //
>--            // The `primary` rule is the *entry* and *exit* point of the parser.
>--            // The rules here can appear at any level of the parse tree.
>--            //
>--            // The recursive nature of the grammar is an interplay between the `block`
>--            // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
>--            // as represented by this simplified grammar:
>--            //
>--            //     primary  â  (ruleset | rule)+
>--            //     ruleset  â  selector+ block
>--            //     block    â  '{' primary '}'
>--            //
>--            // Only at one point is the primary rule not called from the
>--            // block rule: at the root level.
>--            //
>--            primary: function () {
>--                var node, root = [];
>--
>--                while ((node = $(this.mixin.definition) || $(this.rule)    ||  $(this.ruleset) ||
>--                               $(this.mixin.call)       || $(this.comment) ||  $(this.directive))
>--                               || $(/^[\s\n]+/)) {
>--                    node && root.push(node);
>--                }
>--                return root;
>--            },
>--
>--            // We create a Comment node for CSS comments `/* */`,
>--            // but keep the LeSS comments `//` silent, by just skipping
>--            // over them.
>--            comment: function () {
>--                var comment;
>--
>--                if (input.charAt(i) !== '/') return;
>--
>--                if (input.charAt(i + 1) === '/') {
>--                    return new(tree.Comment)($(/^\/\/.*/), true);
>--                } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) {
>--                    return new(tree.Comment)(comment);
>--                }
>--            },
>--
>--            //
>--            // Entities are tokens which can be found inside an Expression
>--            //
>--            entities: {
>--                //
>--                // A string, which supports escaping " and '
>--                //
>--                //     "milky way" 'he\'s the one!'
>--                //
>--                quoted: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return;
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) {
>--                        return new(tree.Quoted)(str[0], str[1] || str[2], e);
>--                    }
>--                },
>--
>--                //
>--                // A catch-all word, such as:
>--                //
>--                //     black border-collapse
>--                //
>--                keyword: function () {
>--                    var k;
>--
>--                    if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) {
>--                        if (tree.colors.hasOwnProperty(k)) {
>--                            // detect named color
>--                            return new(tree.Color)(tree.colors[k].slice(1));
>--                        } else {
>--                            return new(tree.Keyword)(k);
>--                        }
>--                    }
>--                },
>--
>--                //
>--                // A function call
>--                //
>--                //     rgb(255, 0, 255)
>--                //
>--                // We also try to catch IE's `alpha()`, but let the `alpha` parser
>--                // deal with the details.
>--                //
>--                // The arguments are parsed with the `entities.arguments` parser.
>--                //
>--                call: function () {
>--                    var name, nameLC, args, alpha_ret, index = i;
>--
>--                    if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return;
>--
>--                    name = name[1];
>--                    nameLC = name.toLowerCase();
>--
>--                    if (nameLC === 'url') { return null }
>--                    else                { i += name.length }
>--
>--                    if (nameLC === 'alpha') {
>--                        alpha_ret = $(this.alpha);
>--                        if(typeof alpha_ret !== 'undefined') {
>--                            return alpha_ret;
>--                        }
>--                    }
>--
>--                    $('('); // Parse the '(' and consume whitespace.
>--
>--                    args = $(this.entities.arguments);
>--
>--                    if (! $(')')) return;
>--
>--                    if (name) { return new(tree.Call)(name, args, index, env.filename) }
>--                },
>--                arguments: function () {
>--                    var args = [], arg;
>--
>--                    while (arg = $(this.entities.assignment) || $(this.expression)) {
>--                        args.push(arg);
>--                        if (! $(',')) { break }
>--                    }
>--                    return args;
>--                },
>--                literal: function () {
>--                    return $(this.entities.ratio) ||
>--                           $(this.entities.dimension) ||
>--                           $(this.entities.color) ||
>--                           $(this.entities.quoted);
>--                },
>--
>--                // Assignments are argument entities for calls.
>--                // They are present in ie filter properties as shown below.
>--                //
>--                //     filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
>--                //
>--
>--                assignment: function () {
>--                    var key, value;
>--                    if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) {
>--                        return new(tree.Assignment)(key, value);
>--                    }
>--                },
>--
>--                //
>--                // Parse url() tokens
>--                //
>--                // We use a specific rule for urls, because they don't really behave like
>--                // standard function calls. The difference is that the argument doesn't have
>--                // to be enclosed within a string, so it can't be parsed as an Expression.
>--                //
>--                url: function () {
>--                    var value;
>--
>--                    if (input.charAt(i) !== 'u' || !$(/^url$/)) return;
>--                    value = $(this.entities.quoted)  || $(this.entities.variable) ||
>--                            $(/^(?:(?:\\[\($'"])|[^'"])+/) || "";
>--
>--                    expect(')');
>--
>--                    return new(tree.URL)((value.value != null || value instanceof tree.Variable)
>--                                        ? value : new(tree.Anonymous)(value), imports.paths);
>--                },
>--
>--                //
>--                // A Variable entity, such as `@fink`, in
>--                //
>--                //     width: @fink + 2px
>--                //
>--                // We use a different parser for variable definitions,
>--                // see `parsers.variable`.
>--                //
>--                variable: function () {
>--                    var name, index = i;
>--
>--                    if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) {
>--                        return new(tree.Variable)(name, index, env.filename);
>--                    }
>--                },
>--
>--                // A variable entity useing the protective {} e.g. @{var}
>--                variableCurly: function () {
>--                    var name, curly, index = i;
>--
>--                    if (input.charAt(i) === '@' && (curly = $(/^@\{([\w-]+)\}/))) {
>--                        return new(tree.Variable)("@" + curly[1], index, env.filename);
>--                    }
>--                },
>--
>--                //
>--                // A Hexadecimal color
>--                //
>--                //     #4F3C2F
>--                //
>--                // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
>--                //
>--                color: function () {
>--                    var rgb;
>--
>--                    if (input.charAt(i) === '#' && (rgb = $(/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/))) {
>--                        return new(tree.Color)(rgb[1]);
>--                    }
>--                },
>--
>--                //
>--                // A Dimension, that is, a number and a unit
>--                //
>--                //     0.5em 95%
>--                //
>--                dimension: function () {
>--                    var value, c = input.charCodeAt(i);
>--                    if ((c > 57 || c < 45) || c === 47) return;
>--
>--                    if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn|dpi|dpcm|dppx|rem|vw|vh|vmin|vm|ch)?/)) {
>--                        return new(tree.Dimension)(value[1], value[2]);
>--                    }
>--                },
>--
>--                //
>--                // A Ratio
>--                //
>--                //    16/9
>--                //
>--                ratio: function () {
>--                  var value, c = input.charCodeAt(i);
>--                  if (c > 57 || c < 48) return;
>--
>--                  if (value = $(/^(\d+\/\d+)/)) {
>--                    return new(tree.Ratio)(value[1]);
>--                  }
>--                },
>--
>--                //
>--                // JavaScript code to be evaluated
>--                //
>--                //     `window.location.href`
>--                //
>--                javascript: function () {
>--                    var str, j = i, e;
>--
>--                    if (input.charAt(j) === '~') { j++, e = true } // Escaped strings
>--                    if (input.charAt(j) !== '`') { return }
>--
>--                    e && $('~');
>--
>--                    if (str = $(/^`([^`]*)`/)) {
>--                        return new(tree.JavaScript)(str[1], i, e);
>--                    }
>--                }
>--            },
>--
>--            //
>--            // The variable part of a variable definition. Used in the `rule` parser
>--            //
>--            //     @fink:
>--            //
>--            variable: function () {
>--                var name;
>--
>--                if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] }
>--            },
>--
>--            //
>--            // A font size/line-height shorthand
>--            //
>--            //     small/12px
>--            //
>--            // We need to peek first, or we'll match on keywords and dimensions
>--            //
>--            shorthand: function () {
>--                var a, b;
>--
>--                if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return;
>--
>--                save();
>--
>--                if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) {
>--                    return new(tree.Shorthand)(a, b);
>--                }
>--
>--                restore();
>--            },
>--
>--            //
>--            // Mixins
>--            //
>--            mixin: {
>--                //
>--                // A Mixin call, with an optional argument list
>--                //
>--                //     #mixins > .square(#fff);
>--                //     .rounded(4px, black);
>--                //     .button;
>--                //
>--                // The `while` loop is there because mixins can be
>--                // namespaced, but we only support the child and descendant
>--                // selector for now.
>--                //
>--                call: function () {
>--                    var elements = [], e, c, args = [], arg, index = i, s = input.charAt(i), name, value, important = false;
>--
>--                    if (s !== '.' && s !== '#') { return }
>--                    
>--                    save(); // stop us absorbing part of an invalid selector
>--
>--                    while (e = $(/^[#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/)) {
>--                        elements.push(new(tree.Element)(c, e, i));
>--                        c = $('>');
>--                    }
>--                    if ($('(')) {
>--                        while (arg = $(this.expression)) {
>--                            value = arg;
>--                            name = null;
>--
>--                            // Variable
>--                            if (arg.value.length == 1) {
>--                                var val = arg.value[0];
>--                                if (val instanceof tree.Variable) {
>--                                    if ($(':')) {
>--                                        if (value = $(this.expression)) {
>--                                            name = val.name;
>--                                        } else {
>--                                            throw new(Error)("Expected value");
>--                                        }
>--                                    }
>--                                }
>--                            }
>--
>--                            args.push({ name: name, value: value });
>--
>--                            if (! $(',')) { break }
>--                        }
>--                        if (! $(')')) throw new(Error)("Expected )");
>--                    }
>--
>--                    if ($(this.important)) {
>--                        important = true;
>--                    }
>--
>--                    if (elements.length > 0 && ($(';') || peek('}'))) {
>--                        return new(tree.mixin.Call)(elements, args, index, env.filename, important);
>--                    }
>--                    
>--                    restore();
>--                },
>--
>--                //
>--                // A Mixin definition, with a list of parameters
>--                //
>--                //     .rounded (@radius: 2px, @color) {
>--                //        ...
>--                //     }
>--                //
>--                // Until we have a finer grained state-machine, we have to
>--                // do a look-ahead, to make sure we don't have a mixin call.
>--                // See the `rule` function for more information.
>--                //
>--                // We start by matching `.rounded (`, and then proceed on to
>--                // the argument list, which has optional default values.
>--                // We store the parameters in `params`, with a `value` key,
>--                // if there is a value, such as in the case of `@radius`.
>--                //
>--                // Once we've got our params list, and a closing `)`, we parse
>--                // the `{...}` block.
>--                //
>--                definition: function () {
>--                    var name, params = [], match, ruleset, param, value, cond, variadic = false;
>--                    if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') ||
>--                        peek(/^[^{]*(;|})/)) return;
>--
>--                    save();
>--
>--                    if (match = $(/^([#.](?:[\w-]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/)) {
>--                        name = match[1];
>--
>--                        do {
>--                            if (input.charAt(i) === '.' && $(/^\.{3}/)) {
>--                                variadic = true;
>--                                break;
>--                            } else if (param = $(this.entities.variable) || $(this.entities.literal)
>--                                                                         || $(this.entities.keyword)) {
>--                                // Variable
>--                                if (param instanceof tree.Variable) {
>--                                    if ($(':')) {
>--                                        value = expect(this.expression, 'expected expression');
>--                                        params.push({ name: param.name, value: value });
>--                                    } else if ($(/^\.{3}/)) {
>--                                        params.push({ name: param.name, variadic: true });
>--                                        variadic = true;
>--                                        break;
>--                                    } else {
>--                                        params.push({ name: param.name });
>--                                    }
>--                                } else {
>--                                    params.push({ value: param });
>--                                }
>--                            } else {
>--                                break;
>--                            }
>--                        } while ($(','))
>--
>--                        // .mixincall("@{a}"); 
>--                        // looks a bit like a mixin definition.. so we have to be nice and restore
>--                        if (!$(')')) {
>--                            furthest = i;
>--                            restore();
>--                        }
>--
>--                        if ($(/^when/)) { // Guard
>--                            cond = expect(this.conditions, 'expected condition');
>--                        }
>--
>--                        ruleset = $(this.block);
>--
>--                        if (ruleset) {
>--                            return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic);
>--                        } else {
>--                            restore();
>--                        }
>--                    }
>--                }
>--            },
>--
>--            //
>--            // Entities are the smallest recognized token,
>--            // and can be found inside a rule's value.
>--            //
>--            entity: function () {
>--                return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) ||
>--                       $(this.entities.call)    || $(this.entities.keyword)  || $(this.entities.javascript) ||
>--                       $(this.comment);
>--            },
>--
>--            //
>--            // A Rule terminator. Note that we use `peek()` to check for '}',
>--            // because the `block` rule will be expecting it, but we still need to make sure
>--            // it's there, if ';' was ommitted.
>--            //
>--            end: function () {
>--                return $(';') || peek('}');
>--            },
>--
>--            //
>--            // IE's alpha function
>--            //
>--            //     alpha(opacity=88)
>--            //
>--            alpha: function () {
>--                var value;
>--
>--                if (! $(/^$opacity=/i)) return;
>--                if (value = $(/^\d+/) || $(this.entities.variable)) {
>--                    expect(')');
>--                    return new(tree.Alpha)(value);
>--                }
>--            },
>--
>--            //
>--            // A Selector Element
>--            //
>--            //     div
>--            //     + h1
>--            //     #socks
>--            //     input[type="text"]
>--            //
>--            // Elements are the building blocks for Selectors,
>--            // they are made out of a `Combinator` (see combinator rule),
>--            // and an element name, such as a tag a class, or `*`.
>--            //
>--            element: function () {
>--                var e, t, c, v;
>--
>--                c = $(this.combinator);
>--
>--                e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/) ||
>--                    $('*') || $('&') || $(this.attribute) || $(/^\([^)@]+$/) || $(/^[\.#](?=@)/) || $(this.entities.variableCurly);
>--
>--                if (! e) {
>--                    if ($('(') && (v = ($(this.entities.variableCurly) || $(this.entities.variable))) && $(')')) {
>--                        e = new(tree.Paren)(v);
>--                    }
>--                }
>--
>--                if (e) { return new(tree.Element)(c, e, i) }
>--            },
>--
>--            //
>--            // Combinators combine elements together, in a Selector.
>--            //
>--            // Because our parser isn't white-space sensitive, special care
>--            // has to be taken, when parsing the descendant combinator, ` `,
>--            // as it's an empty space. We have to check the previous character
>--            // in the input, to see if it's a ` ` character. More info on how
>--            // we deal with this in *combinator.js*.
>--            //
>--            combinator: function () {
>--                var match, c = input.charAt(i);
>--
>--                if (c === '>' || c === '+' || c === '~') {
>--                    i++;
>--                    while (input.charAt(i).match(/\s/)) { i++ }
>--                    return new(tree.Combinator)(c);
>--                } else if (input.charAt(i - 1).match(/\s/)) {
>--                    return new(tree.Combinator)(" ");
>--                } else {
>--                    return new(tree.Combinator)(null);
>--                }
>--            },
>--
>--            //
>--            // A CSS Selector
>--            //
>--            //     .class > div + h1
>--            //     li a:hover
>--            //
>--            // Selectors are made out of one or more Elements, see above.
>--            //
>--            selector: function () {
>--                var sel, e, elements = [], c, match;
>--
>--                // depreciated, will be removed soon
>--                if ($('(')) {
>--                    sel = $(this.entity);
>--                    expect(')');
>--                    return new(tree.Selector)([new(tree.Element)('', sel, i)]);
>--                }
>--
>--                while (e = $(this.element)) {
>--                    c = input.charAt(i);
>--                    elements.push(e)
>--                    if (c === '{' || c === '}' || c === ';' || c === ',') { break }
>--                }
>--
>--                if (elements.length > 0) { return new(tree.Selector)(elements) }
>--            },
>--            tag: function () {
>--                return $(/^[A-Za-z][A-Za-z-]*[0-9]?/) || $('*');
>--            },
>--            attribute: function () {
>--                var attr = '', key, val, op;
>--
>--                if (! $('[')) return;
>--
>--                if (key = $(/^(?:[_A-Za-z0-9-]|\\.)+/) || $(this.entities.quoted)) {
>--                    if ((op = $(/^[|~*$^]?=/)) &&
>--                        (val = $(this.entities.quoted) || $(/^[\w-]+/))) {
>--                        attr = [key, op, val.toCSS ? val.toCSS() : val].join('');
>--                    } else { attr = key }
>--                }
>--
>--                if (! $(']')) return;
>--
>--                if (attr) { return "[" + attr + "]" }
>--            },
>--
>--            //
>--            // The `block` rule is used by `ruleset` and `mixin.definition`.
>--            // It's a wrapper around the `primary` rule, with added `{}`.
>--            //
>--            block: function () {
>--                var content;
>--                if ($('{') && (content = $(this.primary)) && $('}')) {
>--                    return content;
>--                }
>--            },
>--
>--            //
>--            // div, .class, body > p {...}
>--            //
>--            ruleset: function () {
>--                var selectors = [], s, rules, match, debugInfo;
>--                save();
>--
>--                if (env.dumpLineNumbers)
>--                    debugInfo = getDebugInfo(i, input, env);
>--
>--                while (s = $(this.selector)) {
>--                    selectors.push(s);
>--                    $(this.comment);
>--                    if (! $(',')) { break }
>--                    $(this.comment);
>--                }
>--
>--                if (selectors.length > 0 && (rules = $(this.block))) {
>--                    var ruleset = new(tree.Ruleset)(selectors, rules, env.strictImports);
>--                    if (env.dumpLineNumbers)
>--                        ruleset.debugInfo = debugInfo;
>--                    return ruleset;
>--                } else {
>--                    // Backtrack
>--                    furthest = i;
>--                    restore();
>--                }
>--            },
>--            rule: function () {
>--                var name, value, c = input.charAt(i), important, match;
>--                save();
>--
>--                if (c === '.' || c === '#' || c === '&') { return }
>--
>--                if (name = $(this.variable) || $(this.property)) {
>--                    if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) {
>--                        i += match[0].length - 1;
>--                        value = new(tree.Anonymous)(match[1]);
>--                    } else if (name === "font") {
>--                        value = $(this.font);
>--                    } else {
>--                        value = $(this.value);
>--                    }
>--                    important = $(this.important);
>--
>--                    if (value && $(this.end)) {
>--                        return new(tree.Rule)(name, value, important, memo);
>--                    } else {
>--                        furthest = i;
>--                        restore();
>--                    }
>--                }
>--            },
>--
>--            //
>--            // An @import directive
>--            //
>--            //     @import "lib";
>--            //
>--            // Depending on our environemnt, importing is done differently:
>--            // In the browser, it's an XHR request, in Node, it would be a
>--            // file-system operation. The function used for importing is
>--            // stored in `import`, which we pass to the Import constructor.
>--            //
>--            "import": function () {
>--                var path, features, index = i;
>--                
>--                save();
>--                
>--                var dir = $(/^@import(?:-(once))?\s+/);
>--
>--                if (dir && (path = $(this.entities.quoted) || $(this.entities.url))) {
>--                    features = $(this.mediaFeatures);
>--                    if ($(';')) {
>--                        return new(tree.Import)(path, imports, features, (dir[1] === 'once'), index);
>--                    }
>--                }
>--                
>--                restore();
>--            },
>--
>--            mediaFeature: function () {
>--                var e, p, nodes = [];
>--
>--                do {
>--                    if (e = $(this.entities.keyword)) {
>--                        nodes.push(e);
>--                    } else if ($('(')) {
>--                        p = $(this.property);
>--                        e = $(this.entity);
>--                        if ($(')')) {
>--                            if (p && e) {
>--                                nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true)));
>--                            } else if (e) {
>--                                nodes.push(new(tree.Paren)(e));
>--                            } else {
>--                                return null;
>--                            }
>--                        } else { return null }
>--                    }
>--                } while (e);
>--
>--                if (nodes.length > 0) {
>--                    return new(tree.Expression)(nodes);
>--                }
>--            },
>--
>--            mediaFeatures: function () {
>--                var e, features = [];
>--
>--                do {
>--                  if (e = $(this.mediaFeature)) {
>--                      features.push(e);
>--                      if (! $(',')) { break }
>--                  } else if (e = $(this.entities.variable)) {
>--                      features.push(e);
>--                      if (! $(',')) { break }
>--                  }
>--                } while (e);
>--
>--                return features.length > 0 ? features : null;
>--            },
>--
>--            media: function () {
>--                var features, rules, media, debugInfo;
>--
>--                if (env.dumpLineNumbers)
>--                    debugInfo = getDebugInfo(i, input, env);
>--
>--                if ($(/^@media/)) {
>--                    features = $(this.mediaFeatures);
>--
>--                    if (rules = $(this.block)) {
>--                        media = new(tree.Media)(rules, features);
>--                        if(env.dumpLineNumbers)
>--                            media.debugInfo = debugInfo;
>--                        return media;
>--                    }
>--                }
>--            },
>--
>--            //
>--            // A CSS Directive
>--            //
>--            //     @charset "utf-8";
>--            //
>--            directive: function () {
>--                var name, value, rules, identifier, e, nodes, nonVendorSpecificName,
>--                    hasBlock, hasIdentifier;
>--
>--                if (input.charAt(i) !== '@') return;
>--
>--                if (value = $(this['import']) || $(this.media)) {
>--                    return value;
>--                }
>--                
>--                save();
>--
>--                name = $(/^@[a-z-]+/);
>--
>--                nonVendorSpecificName = name;
>--                if (name.charAt(1) == '-' && name.indexOf('-', 2) > 0) {
>--                    nonVendorSpecificName = "@" + name.slice(name.indexOf('-', 2) + 1);
>--                }
>--
>--                switch(nonVendorSpecificName) {
>--                    case "@font-face":
>--                        hasBlock = true;
>--                        break;
>--                    case "@viewport":
>--                    case "@top-left":
>--                    case "@top-left-corner":
>--                    case "@top-center":
>--                    case "@top-right":
>--                    case "@top-right-corner":
>--                    case "@bottom-left":
>--                    case "@bottom-left-corner":
>--                    case "@bottom-center":
>--                    case "@bottom-right":
>--                    case "@bottom-right-corner":
>--                    case "@left-top":
>--                    case "@left-middle":
>--                    case "@left-bottom":
>--                    case "@right-top":
>--                    case "@right-middle":
>--                    case "@right-bottom":
>--                        hasBlock = true;
>--                        break;
>--                    case "@page":
>--                    case "@document":
>--                    case "@supports":
>--                    case "@keyframes":
>--                        hasBlock = true;
>--                        hasIdentifier = true;
>--                        break;
>--                }
>--
>--                if (hasIdentifier) {
>--                    name += " " + ($(/^[^{]+/) || '').trim();
>--                }
>--
>--                if (hasBlock)
>--                {
>--                    if (rules = $(this.block)) {
>--                        return new(tree.Directive)(name, rules);
>--                    }
>--                } else {
>--                    if ((value = $(this.entity)) && $(';')) {
>--                        return new(tree.Directive)(name, value);
>--                    }
>--                }
>--                
>--                restore();
>--            },
>--            font: function () {
>--                var value = [], expression = [], weight, shorthand, font, e;
>--
>--                while (e = $(this.shorthand) || $(this.entity)) {
>--                    expression.push(e);
>--                }
>--                value.push(new(tree.Expression)(expression));
>--
>--                if ($(',')) {
>--                    while (e = $(this.expression)) {
>--                        value.push(e);
>--                        if (! $(',')) { break }
>--                    }
>--                }
>--                return new(tree.Value)(value);
>--            },
>--
>--            //
>--            // A Value is a comma-delimited list of Expressions
>--            //
>--            //     font-family: Baskerville, Georgia, serif;
>--            //
>--            // In a Rule, a Value represents everything after the `:`,
>--            // and before the `;`.
>--            //
>--            value: function () {
>--                var e, expressions = [], important;
>--
>--                while (e = $(this.expression)) {
>--                    expressions.push(e);
>--                    if (! $(',')) { break }
>--                }
>--
>--                if (expressions.length > 0) {
>--                    return new(tree.Value)(expressions);
>--                }
>--            },
>--            important: function () {
>--                if (input.charAt(i) === '!') {
>--                    return $(/^! *important/);
>--                }
>--            },
>--            sub: function () {
>--                var e;
>--
>--                if ($('(') && (e = $(this.expression)) && $(')')) {
>--                    return e;
>--                }
>--            },
>--            multiplication: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.operand)) {
>--                    while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            addition: function () {
>--                var m, a, op, operation;
>--                if (m = $(this.multiplication)) {
>--                    while ((op = $(/^[-+]\s+/) || (!isWhitespace(input.charAt(i - 1)) && ($('+') || $('-')))) &&
>--                           (a = $(this.multiplication))) {
>--                        operation = new(tree.Operation)(op, [operation || m, a]);
>--                    }
>--                    return operation || m;
>--                }
>--            },
>--            conditions: function () {
>--                var a, b, index = i, condition;
>--
>--                if (a = $(this.condition)) {
>--                    while ($(',') && (b = $(this.condition))) {
>--                        condition = new(tree.Condition)('or', condition || a, b, index);
>--                    }
>--                    return condition || a;
>--                }
>--            },
>--            condition: function () {
>--                var a, b, c, op, index = i, negate = false;
>--
>--                if ($(/^not/)) { negate = true }
>--                expect('(');
>--                if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                    if (op = $(/^(?:>=|=<|[<=>])/)) {
>--                        if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) {
>--                            c = new(tree.Condition)(op, a, b, index, negate);
>--                        } else {
>--                            error('expected expression');
>--                        }
>--                    } else {
>--                        c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate);
>--                    }
>--                    expect(')');
>--                    return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c;
>--                }
>--            },
>--
>--            //
>--            // An operand is anything that can be part of an operation,
>--            // such as a Color, or a Variable
>--            //
>--            operand: function () {
>--                var negate, p = input.charAt(i + 1);
>--
>--                if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') }
>--                var o = $(this.sub) || $(this.entities.dimension) ||
>--                        $(this.entities.color) || $(this.entities.variable) ||
>--                        $(this.entities.call);
>--                return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o])
>--                              : o;
>--            },
>--
>--            //
>--            // Expressions either represent mathematical operations,
>--            // or white-space delimited Entities.
>--            //
>--            //     1px solid black
>--            //     @var * 2
>--            //
>--            expression: function () {
>--                var e, delim, entities = [], d;
>--
>--                while (e = $(this.addition) || $(this.entity)) {
>--                    entities.push(e);
>--                }
>--                if (entities.length > 0) {
>--                    return new(tree.Expression)(entities);
>--                }
>--            },
>--            property: function () {
>--                var name;
>--
>--                if (name = $(/^(\*?-?[_a-z0-9-]+)\s*:/)) {
>--                    return name[1];
>--                }
>--            }
>--        }
>--    };
>--};
>--
>--if (less.mode === 'browser' || less.mode === 'rhino') {
>--    //
>--    // Used by `@import` directives
>--    //
>--    less.Parser.importer = function (path, paths, callback, env) {
>--        if (!/^([a-z-]+:)?\//.test(path) && paths.length > 0) {
>--            path = paths[0] + path;
>--        }
>--        // We pass `true` as 3rd argument, to force the reload of the import.
>--        // This is so we can get the syntax tree as opposed to just the CSS output,
>--        // as we need this to evaluate the current stylesheet.
>--        // __ Now using the hack of passing a ref to top parser's content cache in the 1st arg. __
>--        loadStyleSheet({ href: path, title: path, type: env.mime, contents: env.contents }, function (e) {
>--            if (e && typeof(env.errback) === "function") {
>--                env.errback.call(null, path, paths, callback, env);
>--            } else {
>--                callback.apply(null, arguments);
>--            }
>--        }, true);
>--    };
>--}
>--
>--(function (tree) {
>--
>--tree.functions = {
>--    rgb: function (r, g, b) {
>--        return this.rgba(r, g, b, 1.0);
>--    },
>--    rgba: function (r, g, b, a) {
>--        var rgb = [r, g, b].map(function (c) { return number(c) }),
>--            a = number(a);
>--        return new(tree.Color)(rgb, a);
>--    },
>--    hsl: function (h, s, l) {
>--        return this.hsla(h, s, l, 1.0);
>--    },
>--    hsla: function (h, s, l, a) {
>--        h = (number(h) % 360) / 360;
>--        s = number(s); l = number(l); a = number(a);
>--
>--        var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
>--        var m1 = l * 2 - m2;
>--
>--        return this.rgba(hue(h + 1/3) * 255,
>--                         hue(h)       * 255,
>--                         hue(h - 1/3) * 255,
>--                         a);
>--
>--        function hue(h) {
>--            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
>--            if      (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
>--            else if (h * 2 < 1) return m2;
>--            else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
>--            else                return m1;
>--        }
>--    },
>--    hue: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().h));
>--    },
>--    saturation: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%');
>--    },
>--    lightness: function (color) {
>--        return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
>--    },
>--    red: function (color) {
>--        return new(tree.Dimension)(color.rgb[0]);
>--    },
>--    green: function (color) {
>--        return new(tree.Dimension)(color.rgb[1]);
>--    },
>--    blue: function (color) {
>--        return new(tree.Dimension)(color.rgb[2]);
>--    },
>--    alpha: function (color) {
>--        return new(tree.Dimension)(color.toHSL().a);
>--    },
>--    luma: function (color) {
>--        return new(tree.Dimension)(Math.round((0.2126 * (color.rgb[0]/255) +
>--            0.7152 * (color.rgb[1]/255) +
>--            0.0722 * (color.rgb[2]/255))
>--            * color.alpha * 100), '%');
>--    },
>--    saturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s += amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    desaturate: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.s -= amount.value / 100;
>--        hsl.s = clamp(hsl.s);
>--        return hsla(hsl);
>--    },
>--    lighten: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l += amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    darken: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.l -= amount.value / 100;
>--        hsl.l = clamp(hsl.l);
>--        return hsla(hsl);
>--    },
>--    fadein: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a += amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fadeout: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a -= amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    fade: function (color, amount) {
>--        var hsl = color.toHSL();
>--
>--        hsl.a = amount.value / 100;
>--        hsl.a = clamp(hsl.a);
>--        return hsla(hsl);
>--    },
>--    spin: function (color, amount) {
>--        var hsl = color.toHSL();
>--        var hue = (hsl.h + amount.value) % 360;
>--
>--        hsl.h = hue < 0 ? 360 + hue : hue;
>--
>--        return hsla(hsl);
>--    },
>--    //
>--    // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein
>--    // http://sass-lang.com
>--    //
>--    mix: function (color1, color2, weight) {
>--        if (!weight) {
>--            weight = new(tree.Dimension)(50);
>--        }
>--        var p = weight.value / 100.0;
>--        var w = p * 2 - 1;
>--        var a = color1.toHSL().a - color2.toHSL().a;
>--
>--        var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
>--        var w2 = 1 - w1;
>--
>--        var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2,
>--                   color1.rgb[1] * w1 + color2.rgb[1] * w2,
>--                   color1.rgb[2] * w1 + color2.rgb[2] * w2];
>--
>--        var alpha = color1.alpha * p + color2.alpha * (1 - p);
>--
>--        return new(tree.Color)(rgb, alpha);
>--    },
>--    greyscale: function (color) {
>--        return this.desaturate(color, new(tree.Dimension)(100));
>--    },
>--    contrast: function (color, dark, light, threshold) {
>--        if (typeof light === 'undefined') {
>--            light = this.rgba(255, 255, 255, 1.0);
>--        }
>--        if (typeof dark === 'undefined') {
>--            dark = this.rgba(0, 0, 0, 1.0);
>--        }
>--        if (typeof threshold === 'undefined') {
>--            threshold = 0.43;
>--        } else {
>--            threshold = threshold.value;
>--        }
>--        if (((0.2126 * (color.rgb[0]/255) + 0.7152 * (color.rgb[1]/255) + 0.0722 * (color.rgb[2]/255)) * color.alpha) < threshold) {
>--            return light;
>--        } else {
>--            return dark;
>--        }
>--    },
>--    e: function (str) {
>--        return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str);
>--    },
>--    escape: function (str) {
>--        return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/$/g, "%28").replace(/$/g, "%29"));
>--    },
>--    '%': function (quoted /* arg, arg, ...*/) {
>--        var args = Array.prototype.slice.call(arguments, 1),
>--            str = quoted.value;
>--
>--        for (var i = 0; i < args.length; i++) {
>--            str = str.replace(/%[sda]/i, function(token) {
>--                var value = token.match(/s/i) ? args[i].value : args[i].toCSS();
>--                return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value;
>--            });
>--        }
>--        str = str.replace(/%%/g, '%');
>--        return new(tree.Quoted)('"' + str + '"', str);
>--    },
>--    round: function (n, f) {
>--        var fraction = typeof(f) === "undefined" ? 0 : f.value;
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(number(n).toFixed(fraction), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return n.toFixed(fraction);
>--        } else {
>--            throw { type: "Argument", message: "argument must be a number" };
>--        }
>--    },
>--    ceil: function (n) {
>--        return this._math('ceil', n);
>--    },
>--    floor: function (n) {
>--        return this._math('floor', n);
>--    },
>--    _math: function (fn, n) {
>--        if (n instanceof tree.Dimension) {
>--            return new(tree.Dimension)(Math[fn](number(n)), n.unit);
>--        } else if (typeof(n) === 'number') {
>--            return Math[fn](n);
>--        } else {
>--            throw { type: "Argument", message: "argument must be a number" };
>--        }
>--    },
>--    argb: function (color) {
>--        return new(tree.Anonymous)(color.toARGB());
>--
>--    },
>--    percentage: function (n) {
>--        return new(tree.Dimension)(n.value * 100, '%');
>--    },
>--    color: function (n) {
>--        if (n instanceof tree.Quoted) {
>--            return new(tree.Color)(n.value.slice(1));
>--        } else {
>--            throw { type: "Argument", message: "argument must be a string" };
>--        }
>--    },
>--    iscolor: function (n) {
>--        return this._isa(n, tree.Color);
>--    },
>--    isnumber: function (n) {
>--        return this._isa(n, tree.Dimension);
>--    },
>--    isstring: function (n) {
>--        return this._isa(n, tree.Quoted);
>--    },
>--    iskeyword: function (n) {
>--        return this._isa(n, tree.Keyword);
>--    },
>--    isurl: function (n) {
>--        return this._isa(n, tree.URL);
>--    },
>--    ispixel: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False;
>--    },
>--    ispercentage: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False;
>--    },
>--    isem: function (n) {
>--        return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False;
>--    },
>--    _isa: function (n, Type) {
>--        return (n instanceof Type) ? tree.True : tree.False;
>--    },
>--    
>--    /* Blending modes */
>--    
>--    multiply: function(color1, color2) {
>--        var r = color1.rgb[0] * color2.rgb[0] / 255;
>--        var g = color1.rgb[1] * color2.rgb[1] / 255;
>--        var b = color1.rgb[2] * color2.rgb[2] / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    screen: function(color1, color2) {
>--        var r = 255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255;
>--        var g = 255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255;
>--        var b = 255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    overlay: function(color1, color2) {
>--        var r = color1.rgb[0] < 128 ? 2 * color1.rgb[0] * color2.rgb[0] / 255 : 255 - 2 * (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255;
>--        var g = color1.rgb[1] < 128 ? 2 * color1.rgb[1] * color2.rgb[1] / 255 : 255 - 2 * (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255;
>--        var b = color1.rgb[2] < 128 ? 2 * color1.rgb[2] * color2.rgb[2] / 255 : 255 - 2 * (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    softlight: function(color1, color2) {
>--        var t = color2.rgb[0] * color1.rgb[0] / 255;
>--        var r = t + color1.rgb[0] * (255 - (255 - color1.rgb[0]) * (255 - color2.rgb[0]) / 255 - t) / 255;
>--        t = color2.rgb[1] * color1.rgb[1] / 255;
>--        var g = t + color1.rgb[1] * (255 - (255 - color1.rgb[1]) * (255 - color2.rgb[1]) / 255 - t) / 255;
>--        t = color2.rgb[2] * color1.rgb[2] / 255;
>--        var b = t + color1.rgb[2] * (255 - (255 - color1.rgb[2]) * (255 - color2.rgb[2]) / 255 - t) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    hardlight: function(color1, color2) {
>--        var r = color2.rgb[0] < 128 ? 2 * color2.rgb[0] * color1.rgb[0] / 255 : 255 - 2 * (255 - color2.rgb[0]) * (255 - color1.rgb[0]) / 255;
>--        var g = color2.rgb[1] < 128 ? 2 * color2.rgb[1] * color1.rgb[1] / 255 : 255 - 2 * (255 - color2.rgb[1]) * (255 - color1.rgb[1]) / 255;
>--        var b = color2.rgb[2] < 128 ? 2 * color2.rgb[2] * color1.rgb[2] / 255 : 255 - 2 * (255 - color2.rgb[2]) * (255 - color1.rgb[2]) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    difference: function(color1, color2) {
>--        var r = Math.abs(color1.rgb[0] - color2.rgb[0]);
>--        var g = Math.abs(color1.rgb[1] - color2.rgb[1]);
>--        var b = Math.abs(color1.rgb[2] - color2.rgb[2]);
>--        return this.rgb(r, g, b);
>--    },
>--    exclusion: function(color1, color2) {
>--        var r = color1.rgb[0] + color2.rgb[0] * (255 - color1.rgb[0] - color1.rgb[0]) / 255;
>--        var g = color1.rgb[1] + color2.rgb[1] * (255 - color1.rgb[1] - color1.rgb[1]) / 255;
>--        var b = color1.rgb[2] + color2.rgb[2] * (255 - color1.rgb[2] - color1.rgb[2]) / 255;
>--        return this.rgb(r, g, b);
>--    },
>--    average: function(color1, color2) {
>--        var r = (color1.rgb[0] + color2.rgb[0]) / 2;
>--        var g = (color1.rgb[1] + color2.rgb[1]) / 2;
>--        var b = (color1.rgb[2] + color2.rgb[2]) / 2;
>--        return this.rgb(r, g, b);
>--    },
>--    negation: function(color1, color2) {
>--        var r = 255 - Math.abs(255 - color2.rgb[0] - color1.rgb[0]);
>--        var g = 255 - Math.abs(255 - color2.rgb[1] - color1.rgb[1]);
>--        var b = 255 - Math.abs(255 - color2.rgb[2] - color1.rgb[2]);
>--        return this.rgb(r, g, b);
>--    },
>--    tint: function(color, amount) {
>--        return this.mix(this.rgb(255,255,255), color, amount);
>--    },
>--    shade: function(color, amount) {
>--        return this.mix(this.rgb(0, 0, 0), color, amount);
>--    }
>--};
>--
>--function hsla(hsla) {
>--    return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a);
>--}
>--
>--function number(n) {
>--    if (n instanceof tree.Dimension) {
>--        return parseFloat(n.unit == '%' ? n.value / 100 : n.value);
>--    } else if (typeof(n) === 'number') {
>--        return n;
>--    } else {
>--        throw {
>--            error: "RuntimeError",
>--            message: "color functions take numbers as parameters"
>--        };
>--    }
>--}
>--
>--function clamp(val) {
>--    return Math.min(1, Math.max(0, val));
>--}
>--
>--})(require('./tree'));
>--(function (tree) {
>--    tree.colors = {
>--        'aliceblue':'#f0f8ff',
>--        'antiquewhite':'#faebd7',
>--        'aqua':'#00ffff',
>--        'aquamarine':'#7fffd4',
>--        'azure':'#f0ffff',
>--        'beige':'#f5f5dc',
>--        'bisque':'#ffe4c4',
>--        'black':'#000000',
>--        'blanchedalmond':'#ffebcd',
>--        'blue':'#0000ff',
>--        'blueviolet':'#8a2be2',
>--        'brown':'#a52a2a',
>--        'burlywood':'#deb887',
>--        'cadetblue':'#5f9ea0',
>--        'chartreuse':'#7fff00',
>--        'chocolate':'#d2691e',
>--        'coral':'#ff7f50',
>--        'cornflowerblue':'#6495ed',
>--        'cornsilk':'#fff8dc',
>--        'crimson':'#dc143c',
>--        'cyan':'#00ffff',
>--        'darkblue':'#00008b',
>--        'darkcyan':'#008b8b',
>--        'darkgoldenrod':'#b8860b',
>--        'darkgray':'#a9a9a9',
>--        'darkgrey':'#a9a9a9',
>--        'darkgreen':'#006400',
>--        'darkkhaki':'#bdb76b',
>--        'darkmagenta':'#8b008b',
>--        'darkolivegreen':'#556b2f',
>--        'darkorange':'#ff8c00',
>--        'darkorchid':'#9932cc',
>--        'darkred':'#8b0000',
>--        'darksalmon':'#e9967a',
>--        'darkseagreen':'#8fbc8f',
>--        'darkslateblue':'#483d8b',
>--        'darkslategray':'#2f4f4f',
>--        'darkslategrey':'#2f4f4f',
>--        'darkturquoise':'#00ced1',
>--        'darkviolet':'#9400d3',
>--        'deeppink':'#ff1493',
>--        'deepskyblue':'#00bfff',
>--        'dimgray':'#696969',
>--        'dimgrey':'#696969',
>--        'dodgerblue':'#1e90ff',
>--        'firebrick':'#b22222',
>--        'floralwhite':'#fffaf0',
>--        'forestgreen':'#228b22',
>--        'fuchsia':'#ff00ff',
>--        'gainsboro':'#dcdcdc',
>--        'ghostwhite':'#f8f8ff',
>--        'gold':'#ffd700',
>--        'goldenrod':'#daa520',
>--        'gray':'#808080',
>--        'grey':'#808080',
>--        'green':'#008000',
>--        'greenyellow':'#adff2f',
>--        'honeydew':'#f0fff0',
>--        'hotpink':'#ff69b4',
>--        'indianred':'#cd5c5c',
>--        'indigo':'#4b0082',
>--        'ivory':'#fffff0',
>--        'khaki':'#f0e68c',
>--        'lavender':'#e6e6fa',
>--        'lavenderblush':'#fff0f5',
>--        'lawngreen':'#7cfc00',
>--        'lemonchiffon':'#fffacd',
>--        'lightblue':'#add8e6',
>--        'lightcoral':'#f08080',
>--        'lightcyan':'#e0ffff',
>--        'lightgoldenrodyellow':'#fafad2',
>--        'lightgray':'#d3d3d3',
>--        'lightgrey':'#d3d3d3',
>--        'lightgreen':'#90ee90',
>--        'lightpink':'#ffb6c1',
>--        'lightsalmon':'#ffa07a',
>--        'lightseagreen':'#20b2aa',
>--        'lightskyblue':'#87cefa',
>--        'lightslategray':'#778899',
>--        'lightslategrey':'#778899',
>--        'lightsteelblue':'#b0c4de',
>--        'lightyellow':'#ffffe0',
>--        'lime':'#00ff00',
>--        'limegreen':'#32cd32',
>--        'linen':'#faf0e6',
>--        'magenta':'#ff00ff',
>--        'maroon':'#800000',
>--        'mediumaquamarine':'#66cdaa',
>--        'mediumblue':'#0000cd',
>--        'mediumorchid':'#ba55d3',
>--        'mediumpurple':'#9370d8',
>--        'mediumseagreen':'#3cb371',
>--        'mediumslateblue':'#7b68ee',
>--        'mediumspringgreen':'#00fa9a',
>--        'mediumturquoise':'#48d1cc',
>--        'mediumvioletred':'#c71585',
>--        'midnightblue':'#191970',
>--        'mintcream':'#f5fffa',
>--        'mistyrose':'#ffe4e1',
>--        'moccasin':'#ffe4b5',
>--        'navajowhite':'#ffdead',
>--        'navy':'#000080',
>--        'oldlace':'#fdf5e6',
>--        'olive':'#808000',
>--        'olivedrab':'#6b8e23',
>--        'orange':'#ffa500',
>--        'orangered':'#ff4500',
>--        'orchid':'#da70d6',
>--        'palegoldenrod':'#eee8aa',
>--        'palegreen':'#98fb98',
>--        'paleturquoise':'#afeeee',
>--        'palevioletred':'#d87093',
>--        'papayawhip':'#ffefd5',
>--        'peachpuff':'#ffdab9',
>--        'peru':'#cd853f',
>--        'pink':'#ffc0cb',
>--        'plum':'#dda0dd',
>--        'powderblue':'#b0e0e6',
>--        'purple':'#800080',
>--        'red':'#ff0000',
>--        'rosybrown':'#bc8f8f',
>--        'royalblue':'#4169e1',
>--        'saddlebrown':'#8b4513',
>--        'salmon':'#fa8072',
>--        'sandybrown':'#f4a460',
>--        'seagreen':'#2e8b57',
>--        'seashell':'#fff5ee',
>--        'sienna':'#a0522d',
>--        'silver':'#c0c0c0',
>--        'skyblue':'#87ceeb',
>--        'slateblue':'#6a5acd',
>--        'slategray':'#708090',
>--        'slategrey':'#708090',
>--        'snow':'#fffafa',
>--        'springgreen':'#00ff7f',
>--        'steelblue':'#4682b4',
>--        'tan':'#d2b48c',
>--        'teal':'#008080',
>--        'thistle':'#d8bfd8',
>--        'tomato':'#ff6347',
>--        // 'transparent':'rgba(0,0,0,0)',
>--        'turquoise':'#40e0d0',
>--        'violet':'#ee82ee',
>--        'wheat':'#f5deb3',
>--        'white':'#ffffff',
>--        'whitesmoke':'#f5f5f5',
>--        'yellow':'#ffff00',
>--        'yellowgreen':'#9acd32'
>--    };
>--})(require('./tree'));
>--(function (tree) {
>--
>--tree.Alpha = function (val) {
>--    this.value = val;
>--};
>--tree.Alpha.prototype = {
>--    toCSS: function () {
>--        return "alpha(opacity=" +
>--               (this.value.toCSS ? this.value.toCSS() : this.value) + ")";
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) { this.value = this.value.eval(env) }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Anonymous = function (string) {
>--    this.value = string.value || string;
>--};
>--tree.Anonymous.prototype = {
>--    toCSS: function () {
>--        return this.value;
>--    },
>--    eval: function () { return this },
>--    compare: function (x) {
>--        if (!x.toCSS) {
>--            return -1;
>--        }
>--        
>--        var left = this.toCSS(),
>--            right = x.toCSS();
>--        
>--        if (left === right) {
>--            return 0;
>--        }
>--        
>--        return left < right ? -1 : 1;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Assignment = function (key, val) {
>--    this.key = key;
>--    this.value = val;
>--};
>--tree.Assignment.prototype = {
>--    toCSS: function () {
>--        return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value);
>--    },
>--    eval: function (env) {
>--        if (this.value.eval) {
>--            return new(tree.Assignment)(this.key, this.value.eval(env));
>--        }
>--        return this;
>--    }
>--};
>--
>--})(require('../tree'));(function (tree) {
>--
>--//
>--// A function call node.
>--//
>--tree.Call = function (name, args, index, filename) {
>--    this.name = name;
>--    this.args = args;
>--    this.index = index;
>--    this.filename = filename;
>--};
>--tree.Call.prototype = {
>--    //
>--    // When evaluating a function call,
>--    // we either find the function in `tree.functions` [1],
>--    // in which case we call it, passing the  evaluated arguments,
>--    // or we simply print it out as it appeared originally [2].
>--    //
>--    // The *functions.js* file contains the built-in functions.
>--    //
>--    // The reason why we evaluate the arguments, is in the case where
>--    // we try to pass a variable to a function, like: `saturate(@color)`.
>--    // The function should receive the value, not the variable.
>--    //
>--    eval: function (env) {
>--        var args = this.args.map(function (a) { return a.eval(env) });
>--
>--        if (this.name in tree.functions) { // 1.
>--            try {
>--                return tree.functions[this.name].apply(tree.functions, args);
>--            } catch (e) {
>--                throw { type: e.type || "Runtime",
>--                        message: "error evaluating function `" + this.name + "`" +
>--                                 (e.message ? ': ' + e.message : ''),
>--                        index: this.index, filename: this.filename };
>--            }
>--        } else { // 2.
>--            return new(tree.Anonymous)(this.name +
>--                   "(" + args.map(function (a) { return a.toCSS(env) }).join(', ') + ")");
>--        }
>--    },
>--
>--    toCSS: function (env) {
>--        return this.eval(env).toCSS();
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// RGB Colors - #ff0014, #eee
>--//
>--tree.Color = function (rgb, a) {
>--    //
>--    // The end goal here, is to parse the arguments
>--    // into an integer triplet, such as `128, 255, 0`
>--    //
>--    // This facilitates operations and conversions.
>--    //
>--    if (Array.isArray(rgb)) {
>--        this.rgb = rgb;
>--    } else if (rgb.length == 6) {
>--        this.rgb = rgb.match(/.{2}/g).map(function (c) {
>--            return parseInt(c, 16);
>--        });
>--    } else {
>--        this.rgb = rgb.split('').map(function (c) {
>--            return parseInt(c + c, 16);
>--        });
>--    }
>--    this.alpha = typeof(a) === 'number' ? a : 1;
>--};
>--tree.Color.prototype = {
>--    eval: function () { return this },
>--
>--    //
>--    // If we have some transparency, the only way to represent it
>--    // is via `rgba`. Otherwise, we use the hex representation,
>--    // which has better compatibility with older browsers.
>--    // Values are capped between `0` and `255`, rounded and zero-padded.
>--    //
>--    toCSS: function () {
>--        if (this.alpha < 1.0) {
>--            return "rgba(" + this.rgb.map(function (c) {
>--                return Math.round(c);
>--            }).concat(this.alpha).join(', ') + ")";
>--        } else {
>--            return '#' + this.rgb.map(function (i) {
>--                i = Math.round(i);
>--                i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--                return i.length === 1 ? '0' + i : i;
>--            }).join('');
>--        }
>--    },
>--
>--    //
>--    // Operations have to be done per-channel, if not,
>--    // channels will spill onto each other. Once we have
>--    // our result, in the form of an integer triplet,
>--    // we create a new Color node to hold the result.
>--    //
>--    operate: function (op, other) {
>--        var result = [];
>--
>--        if (! (other instanceof tree.Color)) {
>--            other = other.toColor();
>--        }
>--
>--        for (var c = 0; c < 3; c++) {
>--            result[c] = tree.operate(op, this.rgb[c], other.rgb[c]);
>--        }
>--        return new(tree.Color)(result, this.alpha + other.alpha);
>--    },
>--
>--    toHSL: function () {
>--        var r = this.rgb[0] / 255,
>--            g = this.rgb[1] / 255,
>--            b = this.rgb[2] / 255,
>--            a = this.alpha;
>--
>--        var max = Math.max(r, g, b), min = Math.min(r, g, b);
>--        var h, s, l = (max + min) / 2, d = max - min;
>--
>--        if (max === min) {
>--            h = s = 0;
>--        } else {
>--            s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
>--
>--            switch (max) {
>--                case r: h = (g - b) / d + (g < b ? 6 : 0); break;
>--                case g: h = (b - r) / d + 2;               break;
>--                case b: h = (r - g) / d + 4;               break;
>--            }
>--            h /= 6;
>--        }
>--        return { h: h * 360, s: s, l: l, a: a };
>--    },
>--    toARGB: function () {
>--        var argb = [Math.round(this.alpha * 255)].concat(this.rgb);
>--        return '#' + argb.map(function (i) {
>--            i = Math.round(i);
>--            i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16);
>--            return i.length === 1 ? '0' + i : i;
>--        }).join('');
>--    },
>--    compare: function (x) {
>--        if (!x.rgb) {
>--            return -1;
>--        }
>--        
>--        return (x.rgb[0] === this.rgb[0] &&
>--            x.rgb[1] === this.rgb[1] &&
>--            x.rgb[2] === this.rgb[2] &&
>--            x.alpha === this.alpha) ? 0 : -1;
>--    }
>--};
>--
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Comment = function (value, silent) {
>--    this.value = value;
>--    this.silent = !!silent;
>--};
>--tree.Comment.prototype = {
>--    toCSS: function (env) {
>--        return env.compress ? '' : this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Condition = function (op, l, r, i, negate) {
>--    this.op = op.trim();
>--    this.lvalue = l;
>--    this.rvalue = r;
>--    this.index = i;
>--    this.negate = negate;
>--};
>--tree.Condition.prototype.eval = function (env) {
>--    var a = this.lvalue.eval(env),
>--        b = this.rvalue.eval(env);
>--
>--    var i = this.index, result;
>--
>--    var result = (function (op) {
>--        switch (op) {
>--            case 'and':
>--                return a && b;
>--            case 'or':
>--                return a || b;
>--            default:
>--                if (a.compare) {
>--                    result = a.compare(b);
>--                } else if (b.compare) {
>--                    result = b.compare(a);
>--                } else {
>--                    throw { type: "Type",
>--                            message: "Unable to perform comparison",
>--                            index: i };
>--                }
>--                switch (result) {
>--                    case -1: return op === '<' || op === '=<';
>--                    case  0: return op === '=' || op === '>=' || op === '=<';
>--                    case  1: return op === '>' || op === '>=';
>--                }
>--        }
>--    })(this.op);
>--    return this.negate ? !result : result;
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--//
>--// A number with a unit
>--//
>--tree.Dimension = function (value, unit) {
>--    this.value = parseFloat(value);
>--    this.unit = unit || null;
>--};
>--
>--tree.Dimension.prototype = {
>--    eval: function () { return this },
>--    toColor: function () {
>--        return new(tree.Color)([this.value, this.value, this.value]);
>--    },
>--    toCSS: function () {
>--        var css = this.value + this.unit;
>--        return css;
>--    },
>--
>--    // In an operation between two Dimensions,
>--    // we default to the first Dimension's unit,
>--    // so `1px + 2em` will yield `3px`.
>--    // In the future, we could implement some unit
>--    // conversions such that `100cm + 10mm` would yield
>--    // `101cm`.
>--    operate: function (op, other) {
>--        return new(tree.Dimension)
>--                  (tree.operate(op, this.value, other.value),
>--                  this.unit || other.unit);
>--    },
>--
>--    // TODO: Perform unit conversion before comparing
>--    compare: function (other) {
>--        if (other instanceof tree.Dimension) {
>--            if (other.value > this.value) {
>--                return -1;
>--            } else if (other.value < this.value) {
>--                return 1;
>--            } else {
>--                return 0;
>--            }
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Directive = function (name, value) {
>--    this.name = name;
>--
>--    if (Array.isArray(value)) {
>--        this.ruleset = new(tree.Ruleset)([], value);
>--        this.ruleset.allowImports = true;
>--    } else {
>--        this.value = value;
>--    }
>--};
>--tree.Directive.prototype = {
>--    toCSS: function (ctx, env) {
>--        if (this.ruleset) {
>--            this.ruleset.root = true;
>--            return this.name + (env.compress ? '{' : ' {\n  ') +
>--                   this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                               (env.compress ? '}': '\n}\n');
>--        } else {
>--            return this.name + ' ' + this.value.toCSS() + ';\n';
>--        }
>--    },
>--    eval: function (env) {
>--        var evaldDirective = this;
>--        if (this.ruleset) {
>--            env.frames.unshift(this);
>--            evaldDirective = new(tree.Directive)(this.name);
>--            evaldDirective.ruleset = this.ruleset.eval(env);
>--            env.frames.shift();
>--        }
>--        return evaldDirective;
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Element = function (combinator, value, index) {
>--    this.combinator = combinator instanceof tree.Combinator ?
>--                      combinator : new(tree.Combinator)(combinator);
>--
>--    if (typeof(value) === 'string') {
>--        this.value = value.trim();
>--    } else if (value) {
>--        this.value = value;
>--    } else {
>--        this.value = "";
>--    }
>--    this.index = index;
>--};
>--tree.Element.prototype.eval = function (env) {
>--    return new(tree.Element)(this.combinator,
>--                             this.value.eval ? this.value.eval(env) : this.value,
>--                             this.index);
>--};
>--tree.Element.prototype.toCSS = function (env) {
>--	var value = (this.value.toCSS ? this.value.toCSS(env) : this.value);
>--	if (value == '' && this.combinator.value.charAt(0) == '&') {
>--		return '';
>--	} else {
>--		return this.combinator.toCSS(env || {}) + value;
>--	}
>--};
>--
>--tree.Combinator = function (value) {
>--    if (value === ' ') {
>--        this.value = ' ';
>--    } else {
>--        this.value = value ? value.trim() : "";
>--    }
>--};
>--tree.Combinator.prototype.toCSS = function (env) {
>--    return {
>--        ''  : '',
>--        ' ' : ' ',
>--        ':' : ' :',
>--        '+' : env.compress ? '+' : ' + ',
>--        '~' : env.compress ? '~' : ' ~ ',
>--        '>' : env.compress ? '>' : ' > '
>--    }[this.value];
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Expression = function (value) { this.value = value };
>--tree.Expression.prototype = {
>--    eval: function (env) {
>--        if (this.value.length > 1) {
>--            return new(tree.Expression)(this.value.map(function (e) {
>--                return e.eval(env);
>--            }));
>--        } else if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return this;
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS ? e.toCSS(env) : '';
>--        }).join(' ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--//
>--// CSS @import node
>--//
>--// The general strategy here is that we don't want to wait
>--// for the parsing to be completed, before we start importing
>--// the file. That's because in the context of a browser,
>--// most of the time will be spent waiting for the server to respond.
>--//
>--// On creation, we push the import path to our import queue, though
>--// `import,push`, we also pass it a callback, which it'll call once
>--// the file has been fetched, and parsed.
>--//
>--tree.Import = function (path, imports, features, once, index) {
>--    var that = this;
>--
>--    this.once = once;
>--    this.index = index;
>--    this._path = path;
>--    this.features = features && new(tree.Value)(features);
>--
>--    // The '.less' extension is optional
>--    if (path instanceof tree.Quoted) {
>--        this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less';
>--    } else {
>--        this.path = path.value.value || path.value;
>--    }
>--
>--    this.css = /css(\?.*)?$/.test(this.path);
>--
>--    // Only pre-compile .less files
>--    if (! this.css) {
>--        imports.push(this.path, function (e, root, imported) {
>--            if (e) { e.index = index }
>--            if (imported && that.once) that.skip = imported;
>--            that.root = root || new(tree.Ruleset)([], []);
>--        });
>--    }
>--};
>--
>--//
>--// The actual import node doesn't return anything, when converted to CSS.
>--// The reason is that it's used at the evaluation stage, so that the rules
>--// it imports can be treated like any other rules.
>--//
>--// In `eval`, we make sure all Import nodes get evaluated, recursively, so
>--// we end up with a flat structure, which can easily be imported in the parent
>--// ruleset.
>--//
>--tree.Import.prototype = {
>--    toCSS: function (env) {
>--        var features = this.features ? ' ' + this.features.toCSS(env) : '';
>--
>--        if (this.css) {
>--            return "@import " + this._path.toCSS() + features + ';\n';
>--        } else {
>--            return "";
>--        }
>--    },
>--    eval: function (env) {
>--        var ruleset, features = this.features && this.features.eval(env);
>--
>--        if (this.skip) return [];
>--
>--        if (this.css) {
>--            return this;
>--        } else {
>--            ruleset = new(tree.Ruleset)([], this.root.rules.slice(0));
>--
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    Array.prototype
>--                         .splice
>--                         .apply(ruleset.rules,
>--                                [i, 1].concat(ruleset.rules[i].eval(env)));
>--                }
>--            }
>--            return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules;
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.JavaScript = function (string, index, escaped) {
>--    this.escaped = escaped;
>--    this.expression = string;
>--    this.index = index;
>--};
>--tree.JavaScript.prototype = {
>--    eval: function (env) {
>--        var result,
>--            that = this,
>--            context = {};
>--
>--        var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env));
>--        });
>--
>--        try {
>--            expression = new(Function)('return (' + expression + ')');
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: `" + expression + "`" ,
>--                    index: this.index };
>--        }
>--
>--        for (var k in env.frames[0].variables()) {
>--            context[k.slice(1)] = {
>--                value: env.frames[0].variables()[k].value,
>--                toJS: function () {
>--                    return this.value.eval(env).toCSS();
>--                }
>--            };
>--        }
>--
>--        try {
>--            result = expression.call(context);
>--        } catch (e) {
>--            throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" ,
>--                    index: this.index };
>--        }
>--        if (typeof(result) === 'string') {
>--            return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index);
>--        } else if (Array.isArray(result)) {
>--            return new(tree.Anonymous)(result.join(', '));
>--        } else {
>--            return new(tree.Anonymous)(result);
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Keyword = function (value) { this.value = value };
>--tree.Keyword.prototype = {
>--    eval: function () { return this },
>--    toCSS: function () { return this.value },
>--    compare: function (other) {
>--        if (other instanceof tree.Keyword) {
>--            return other.value === this.value ? 0 : 1;
>--        } else {
>--            return -1;
>--        }
>--    }
>--};
>--
>--tree.True = new(tree.Keyword)('true');
>--tree.False = new(tree.Keyword)('false');
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Media = function (value, features) {
>--    var selectors = this.emptySelectors();
>--
>--    this.features = new(tree.Value)(features);
>--    this.ruleset = new(tree.Ruleset)(selectors, value);
>--    this.ruleset.allowImports = true;
>--};
>--tree.Media.prototype = {
>--    toCSS: function (ctx, env) {
>--        var features = this.features.toCSS(env);
>--
>--        this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia);
>--        return '@media ' + features + (env.compress ? '{' : ' {\n  ') +
>--               this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
>--                           (env.compress ? '}': '\n}\n');
>--    },
>--    eval: function (env) {
>--        if (!env.mediaBlocks) {
>--            env.mediaBlocks = [];
>--            env.mediaPath = [];
>--        }
>--        
>--        var blockIndex = env.mediaBlocks.length;
>--        env.mediaPath.push(this);
>--        env.mediaBlocks.push(this);
>--
>--        var media = new(tree.Media)([], []);
>--        if(this.debugInfo) {
>--            this.ruleset.debugInfo = this.debugInfo;
>--            media.debugInfo = this.debugInfo;
>--        }
>--        media.features = this.features.eval(env);
>--        
>--        env.frames.unshift(this.ruleset);
>--        media.ruleset = this.ruleset.eval(env);
>--        env.frames.shift();
>--        
>--        env.mediaBlocks[blockIndex] = media;
>--        env.mediaPath.pop();
>--
>--        return env.mediaPath.length === 0 ? media.evalTop(env) :
>--                    media.evalNested(env)
>--    },
>--    variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) },
>--    find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) },
>--    rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) },
>--    emptySelectors: function() { 
>--        var el = new(tree.Element)('', '&', 0);
>--        return [new(tree.Selector)([el])];
>--    },
>--
>--    evalTop: function (env) {
>--        var result = this;
>--
>--        // Render all dependent Media blocks.
>--        if (env.mediaBlocks.length > 1) {
>--            var selectors = this.emptySelectors();
>--            result = new(tree.Ruleset)(selectors, env.mediaBlocks);
>--            result.multiMedia = true;
>--        }
>--
>--        delete env.mediaBlocks;
>--        delete env.mediaPath;
>--
>--        return result;
>--    },
>--    evalNested: function (env) {
>--        var i, value,
>--            path = env.mediaPath.concat([this]);
>--
>--        // Extract the media-query conditions separated with `,` (OR).
>--        for (i = 0; i < path.length; i++) {
>--            value = path[i].features instanceof tree.Value ?
>--                        path[i].features.value : path[i].features;
>--            path[i] = Array.isArray(value) ? value : [value];
>--        }
>--
>--        // Trace all permutations to generate the resulting media-query.
>--        //
>--        // (a, b and c) with nested (d, e) ->
>--        //    a and d
>--        //    a and e
>--        //    b and c and d
>--        //    b and c and e
>--        this.features = new(tree.Value)(this.permute(path).map(function (path) {
>--            path = path.map(function (fragment) {
>--                return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment);
>--            });
>--
>--            for(i = path.length - 1; i > 0; i--) {
>--                path.splice(i, 0, new(tree.Anonymous)("and"));
>--            }
>--
>--            return new(tree.Expression)(path);
>--        }));
>--
>--        // Fake a tree-node that doesn't output anything.
>--        return new(tree.Ruleset)([], []);
>--    },
>--    permute: function (arr) {
>--      if (arr.length === 0) {
>--          return [];
>--      } else if (arr.length === 1) {
>--          return arr[0];
>--      } else {
>--          var result = [];
>--          var rest = this.permute(arr.slice(1));
>--          for (var i = 0; i < rest.length; i++) {
>--              for (var j = 0; j < arr[0].length; j++) {
>--                  result.push([arr[0][j]].concat(rest[i]));
>--              }
>--          }
>--          return result;
>--      }
>--    },
>--    bubbleSelectors: function (selectors) {
>--      this.ruleset = new(tree.Ruleset)(selectors.slice(0), [this.ruleset]);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.mixin = {};
>--tree.mixin.Call = function (elements, args, index, filename, important) {
>--    this.selector = new(tree.Selector)(elements);
>--    this.arguments = args;
>--    this.index = index;
>--    this.filename = filename;
>--    this.important = important;
>--};
>--tree.mixin.Call.prototype = {
>--    eval: function (env) {
>--        var mixins, args, rules = [], match = false;
>--
>--        for (var i = 0; i < env.frames.length; i++) {
>--            if ((mixins = env.frames[i].find(this.selector)).length > 0) {
>--                args = this.arguments && this.arguments.map(function (a) {
>--                    return { name: a.name, value: a.value.eval(env) };
>--                });
>--                for (var m = 0; m < mixins.length; m++) {
>--                    if (mixins[m].match(args, env)) {
>--                        try {
>--                            Array.prototype.push.apply(
>--                                  rules, mixins[m].eval(env, this.arguments, this.important).rules);
>--                            match = true;
>--                        } catch (e) {
>--                            throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack };
>--                        }
>--                    }
>--                }
>--                if (match) {
>--                    return rules;
>--                } else {
>--                    throw { type:    'Runtime',
>--                            message: 'No matching definition was found for `' +
>--                                      this.selector.toCSS().trim() + '('      +
>--                                      this.arguments.map(function (a) {
>--                                          return a.toCSS();
>--                                      }).join(', ') + ")`",
>--                            index:   this.index, filename: this.filename };
>--                }
>--            }
>--        }
>--        throw { type: 'Name',
>--                message: this.selector.toCSS().trim() + " is undefined",
>--                index: this.index, filename: this.filename };
>--    }
>--};
>--
>--tree.mixin.Definition = function (name, params, rules, condition, variadic) {
>--    this.name = name;
>--    this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])];
>--    this.params = params;
>--    this.condition = condition;
>--    this.variadic = variadic;
>--    this.arity = params.length;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.required = params.reduce(function (count, p) {
>--        if (!p.name || (p.name && !p.value)) { return count + 1 }
>--        else                                 { return count }
>--    }, 0);
>--    this.parent = tree.Ruleset.prototype;
>--    this.frames = [];
>--};
>--tree.mixin.Definition.prototype = {
>--    toCSS:     function ()     { return "" },
>--    variable:  function (name) { return this.parent.variable.call(this, name) },
>--    variables: function ()     { return this.parent.variables.call(this) },
>--    find:      function ()     { return this.parent.find.apply(this, arguments) },
>--    rulesets:  function ()     { return this.parent.rulesets.apply(this) },
>--
>--    evalParams: function (env, args) {
>--        var frame = new(tree.Ruleset)(null, []), varargs, arg;
>--
>--        for (var i = 0, val, name; i < this.params.length; i++) {
>--            arg = args && args[i]
>--
>--            if (arg && arg.name) {
>--                frame.rules.unshift(new(tree.Rule)(arg.name, arg.value.eval(env)));
>--                args.splice(i, 1);
>--                i--;
>--                continue;
>--            }
>--			
>--            if (name = this.params[i].name) {
>--                if (this.params[i].variadic && args) {
>--                    varargs = [];
>--                    for (var j = i; j < args.length; j++) {
>--                        varargs.push(args[j].value.eval(env));
>--                    }
>--                    frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env)));
>--                } else if (val = (arg && arg.value) || this.params[i].value) {
>--                    frame.rules.unshift(new(tree.Rule)(name, val.eval(env)));
>--                } else {
>--                    throw { type: 'Runtime', message: "wrong number of arguments for " + this.name +
>--                            ' (' + args.length + ' for ' + this.arity + ')' };
>--                }
>--            }
>--        }
>--        return frame;
>--    },
>--    eval: function (env, args, important) {
>--        var frame = this.evalParams(env, args), context, _arguments = [], rules, start;
>--
>--        for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) {
>--            _arguments.push((args[i] && args[i].value) || this.params[i].value);
>--        }
>--        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env)));
>--
>--        rules = important ?
>--            this.rules.map(function (r) {
>--                return new(tree.Rule)(r.name, r.value, '!important', r.index);
>--            }) : this.rules.slice(0);
>--
>--        return new(tree.Ruleset)(null, rules).eval({
>--            frames: [this, frame].concat(this.frames, env.frames)
>--        });
>--    },
>--    match: function (args, env) {
>--        var argsLength = (args && args.length) || 0, len, frame;
>--
>--        if (! this.variadic) {
>--            if (argsLength < this.required)                               { return false }
>--            if (argsLength > this.params.length)                          { return false }
>--            if ((this.required > 0) && (argsLength > this.params.length)) { return false }
>--        }
>--
>--        if (this.condition && !this.condition.eval({
>--            frames: [this.evalParams(env, args)].concat(env.frames)
>--        }))                                                           { return false }
>--
>--        len = Math.min(argsLength, this.arity);
>--
>--        for (var i = 0; i < len; i++) {
>--            if (!this.params[i].name) {
>--                if (args[i].value.eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) {
>--                    return false;
>--                }
>--            }
>--        }
>--        return true;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Operation = function (op, operands) {
>--    this.op = op.trim();
>--    this.operands = operands;
>--};
>--tree.Operation.prototype.eval = function (env) {
>--    var a = this.operands[0].eval(env),
>--        b = this.operands[1].eval(env),
>--        temp;
>--
>--    if (a instanceof tree.Dimension && b instanceof tree.Color) {
>--        if (this.op === '*' || this.op === '+') {
>--            temp = b, b = a, a = temp;
>--        } else {
>--            throw { name: "OperationError",
>--                    message: "Can't substract or divide a color from a number" };
>--        }
>--    }
>--    return a.operate(this.op, b);
>--};
>--
>--tree.operate = function (op, a, b) {
>--    switch (op) {
>--        case '+': return a + b;
>--        case '-': return a - b;
>--        case '*': return a * b;
>--        case '/': return a / b;
>--    }
>--};
>--
>--})(require('../tree'));
>--
>--(function (tree) {
>--
>--tree.Paren = function (node) {
>--    this.value = node;
>--};
>--tree.Paren.prototype = {
>--    toCSS: function (env) {
>--        return '(' + this.value.toCSS(env) + ')';
>--    },
>--    eval: function (env) {
>--        return new(tree.Paren)(this.value.eval(env));
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Quoted = function (str, content, escaped, i) {
>--    this.escaped = escaped;
>--    this.value = content || '';
>--    this.quote = str.charAt(0);
>--    this.index = i;
>--};
>--tree.Quoted.prototype = {
>--    toCSS: function () {
>--        if (this.escaped) {
>--            return this.value;
>--        } else {
>--            return this.quote + this.value + this.quote;
>--        }
>--    },
>--    eval: function (env) {
>--        var that = this;
>--        var value = this.value.replace(/`([^`]+)`/g, function (_, exp) {
>--            return new(tree.JavaScript)(exp, that.index, true).eval(env).value;
>--        }).replace(/@\{([\w-]+)\}/g, function (_, name) {
>--            var v = new(tree.Variable)('@' + name, that.index).eval(env);
>--            return ('value' in v) ? v.value : v.toCSS();
>--        });
>--        return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index);
>--    },
>--    compare: function (x) {
>--        if (!x.toCSS) {
>--            return -1;
>--        }
>--        
>--        var left = this.toCSS(),
>--            right = x.toCSS();
>--        
>--        if (left === right) {
>--            return 0;
>--        }
>--        
>--        return left < right ? -1 : 1;
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ratio = function (value) {
>--    this.value = value;
>--};
>--tree.Ratio.prototype = {
>--    toCSS: function (env) {
>--        return this.value;
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Rule = function (name, value, important, index, inline) {
>--    this.name = name;
>--    this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
>--    this.important = important ? ' ' + important.trim() : '';
>--    this.index = index;
>--    this.inline = inline || false;
>--
>--    if (name.charAt(0) === '@') {
>--        this.variable = true;
>--    } else { this.variable = false }
>--};
>--tree.Rule.prototype.toCSS = function (env) {
>--    if (this.variable) { return "" }
>--    else {
>--        return this.name + (env.compress ? ':' : ': ') +
>--               this.value.toCSS(env) +
>--               this.important + (this.inline ? "" : ";");
>--    }
>--};
>--
>--tree.Rule.prototype.eval = function (context) {
>--    return new(tree.Rule)(this.name,
>--                          this.value.eval(context),
>--                          this.important,
>--                          this.index, this.inline);
>--};
>--
>--tree.Shorthand = function (a, b) {
>--    this.a = a;
>--    this.b = b;
>--};
>--
>--tree.Shorthand.prototype = {
>--    toCSS: function (env) {
>--        return this.a.toCSS(env) + "/" + this.b.toCSS(env);
>--    },
>--    eval: function () { return this }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Ruleset = function (selectors, rules, strictImports) {
>--    this.selectors = selectors;
>--    this.rules = rules;
>--    this._lookups = {};
>--    this.strictImports = strictImports;
>--};
>--tree.Ruleset.prototype = {
>--    eval: function (env) {
>--        var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) });
>--        var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports);
>--        var rules = [];
>--        
>--        ruleset.root = this.root;
>--        ruleset.allowImports = this.allowImports;
>--
>--        if(this.debugInfo) {
>--            ruleset.debugInfo = this.debugInfo;
>--        }
>--
>--        // push the current ruleset to the frames stack
>--        env.frames.unshift(ruleset);
>--
>--        // Evaluate imports
>--        if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) {
>--            for (var i = 0; i < ruleset.rules.length; i++) {
>--                if (ruleset.rules[i] instanceof tree.Import) {
>--                    rules = rules.concat(ruleset.rules[i].eval(env));
>--                } else {
>--                    rules.push(ruleset.rules[i]);
>--                }
>--            }
>--            ruleset.rules = rules;
>--            rules = [];
>--        }
>--
>--        // Store the frames around mixin definitions,
>--        // so they can be evaluated like closures when the time comes.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Definition) {
>--                ruleset.rules[i].frames = env.frames.slice(0);
>--            }
>--        }
>--        
>--        var mediaBlockCount = (env.mediaBlocks && env.mediaBlocks.length) || 0;
>--
>--        // Evaluate mixin calls.
>--        for (var i = 0; i < ruleset.rules.length; i++) {
>--            if (ruleset.rules[i] instanceof tree.mixin.Call) {
>--                rules = rules.concat(ruleset.rules[i].eval(env));
>--            } else {
>--                rules.push(ruleset.rules[i]);
>--            }
>--        }
>--        ruleset.rules = rules;
>--
>--        // Evaluate everything else
>--        for (var i = 0, rule; i < ruleset.rules.length; i++) {
>--            rule = ruleset.rules[i];
>--
>--            if (! (rule instanceof tree.mixin.Definition)) {
>--                ruleset.rules[i] = rule.eval ? rule.eval(env) : rule;
>--            }
>--        }
>--
>--        // Pop the stack
>--        env.frames.shift();
>--        
>--        if (env.mediaBlocks) {
>--            for(var i = mediaBlockCount; i < env.mediaBlocks.length; i++) {
>--                env.mediaBlocks[i].bubbleSelectors(selectors);
>--            }
>--        }
>--
>--        return ruleset;
>--    },
>--    match: function (args) {
>--        return !args || args.length === 0;
>--    },
>--    variables: function () {
>--        if (this._variables) { return this._variables }
>--        else {
>--            return this._variables = this.rules.reduce(function (hash, r) {
>--                if (r instanceof tree.Rule && r.variable === true) {
>--                    hash[r.name] = r;
>--                }
>--                return hash;
>--            }, {});
>--        }
>--    },
>--    variable: function (name) {
>--        return this.variables()[name];
>--    },
>--    rulesets: function () {
>--        if (this._rulesets) { return this._rulesets }
>--        else {
>--            return this._rulesets = this.rules.filter(function (r) {
>--                return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition);
>--            });
>--        }
>--    },
>--    find: function (selector, self) {
>--        self = self || this;
>--        var rules = [], rule, match,
>--            key = selector.toCSS();
>--
>--        if (key in this._lookups) { return this._lookups[key] }
>--
>--        this.rulesets().forEach(function (rule) {
>--            if (rule !== self) {
>--                for (var j = 0; j < rule.selectors.length; j++) {
>--                    if (match = selector.match(rule.selectors[j])) {
>--                        if (selector.elements.length > rule.selectors[j].elements.length) {
>--                            Array.prototype.push.apply(rules, rule.find(
>--                                new(tree.Selector)(selector.elements.slice(1)), self));
>--                        } else {
>--                            rules.push(rule);
>--                        }
>--                        break;
>--                    }
>--                }
>--            }
>--        });
>--        return this._lookups[key] = rules;
>--    },
>--    //
>--    // Entry point for code generation
>--    //
>--    //     `context` holds an array of arrays.
>--    //
>--    toCSS: function (context, env) {
>--        var css = [],      // The CSS output
>--            rules = [],    // node.Rule instances
>--           _rules = [],    //
>--            rulesets = [], // node.Ruleset instances
>--            paths = [],    // Current selectors
>--            selector,      // The fully rendered selector
>--            debugInfo,     // Line number debugging
>--            rule;
>--
>--        if (! this.root) {
>--            this.joinSelectors(paths, context, this.selectors);
>--        }
>--
>--        // Compile rules and rulesets
>--        for (var i = 0; i < this.rules.length; i++) {
>--            rule = this.rules[i];
>--
>--            if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) {
>--                rulesets.push(rule.toCSS(paths, env));
>--            } else if (rule instanceof tree.Comment) {
>--                if (!rule.silent) {
>--                    if (this.root) {
>--                        rulesets.push(rule.toCSS(env));
>--                    } else {
>--                        rules.push(rule.toCSS(env));
>--                    }
>--                }
>--            } else {
>--                if (rule.toCSS && !rule.variable) {
>--                    rules.push(rule.toCSS(env));
>--                } else if (rule.value && !rule.variable) {
>--                    rules.push(rule.value.toString());
>--                }
>--            }
>--        } 
>--
>--        rulesets = rulesets.join('');
>--
>--        // If this is the root node, we don't render
>--        // a selector, or {}.
>--        // Otherwise, only output if this ruleset has rules.
>--        if (this.root) {
>--            css.push(rules.join(env.compress ? '' : '\n'));
>--        } else {
>--            if (rules.length > 0) {
>--                debugInfo = tree.debugInfo(env, this);
>--                selector = paths.map(function (p) {
>--                    return p.map(function (s) {
>--                        return s.toCSS(env);
>--                    }).join('').trim();
>--                }).join(env.compress ? ',' : ',\n');
>--
>--                // Remove duplicates
>--                for (var i = rules.length - 1; i >= 0; i--) {
>--                    if (_rules.indexOf(rules[i]) === -1) {
>--                        _rules.unshift(rules[i]);
>--                    }
>--                }
>--                rules = _rules;
>--
>--                css.push(debugInfo + selector + 
>--                        (env.compress ? '{' : ' {\n  ') +
>--                        rules.join(env.compress ? '' : '\n  ') +
>--                        (env.compress ? '}' : '\n}\n'));
>--            }
>--        }
>--        css.push(rulesets);
>--
>--        return css.join('')  + (env.compress ? '\n' : '');
>--    },
>--
>--    joinSelectors: function (paths, context, selectors) {
>--        for (var s = 0; s < selectors.length; s++) {
>--            this.joinSelector(paths, context, selectors[s]);
>--        }
>--    },
>--
>--    joinSelector: function (paths, context, selector) {
>--
>--        var i, j, k, 
>--            hasParentSelector, newSelectors, el, sel, parentSel, 
>--            newSelectorPath, afterParentJoin, newJoinedSelector, 
>--            newJoinedSelectorEmpty, lastSelector, currentElements,
>--            selectorsMultiplied;
>--    
>--        for (i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            if (el.value === '&') {
>--                hasParentSelector = true;
>--            }
>--        }
>--    
>--        if (!hasParentSelector) {
>--            if (context.length > 0) {
>--                for(i = 0; i < context.length; i++) {
>--                    paths.push(context[i].concat(selector));
>--                }
>--            }
>--            else {
>--                paths.push([selector]);
>--            }
>--            return;
>--        }
>--
>--        // The paths are [[Selector]]
>--        // The first list is a list of comma seperated selectors
>--        // The inner list is a list of inheritance seperated selectors
>--        // e.g.
>--        // .a, .b {
>--        //   .c {
>--        //   }
>--        // }
>--        // == [[.a] [.c]] [[.b] [.c]]
>--        //
>--
>--        // the elements from the current selector so far
>--        currentElements = [];
>--        // the current list of new selectors to add to the path.
>--        // We will build it up. We initiate it with one empty selector as we "multiply" the new selectors
>--        // by the parents
>--        newSelectors = [[]];
>--
>--        for (i = 0; i < selector.elements.length; i++) {
>--            el = selector.elements[i];
>--            // non parent reference elements just get added
>--            if (el.value !== "&") {
>--                currentElements.push(el);
>--            } else {
>--                // the new list of selectors to add
>--                selectorsMultiplied = [];
>--
>--                // merge the current list of non parent selector elements
>--                // on to the current list of selectors to add
>--                if (currentElements.length > 0) {
>--                    this.mergeElementsOnToSelectors(currentElements, newSelectors);
>--                }
>--
>--                // loop through our current selectors
>--                for(j = 0; j < newSelectors.length; j++) {
>--                    sel = newSelectors[j];
>--                    // if we don't have any parent paths, the & might be in a mixin so that it can be used
>--                    // whether there are parents or not
>--                    if (context.length == 0) {
>--                        // the combinator used on el should now be applied to the next element instead so that
>--                        // it is not lost
>--                        if (sel.length > 0) {
>--                            sel[0].elements = sel[0].elements.slice(0);
>--                            sel[0].elements.push(new(tree.Element)(el.combinator, '', 0)); //new Element(el.Combinator,  ""));
>--                        }
>--                        selectorsMultiplied.push(sel);
>--                    }
>--                    else {
>--                        // and the parent selectors
>--                        for(k = 0; k < context.length; k++) {
>--                            parentSel = context[k];
>--                            // We need to put the current selectors
>--                            // then join the last selector's elements on to the parents selectors
>--
>--                            // our new selector path
>--                            newSelectorPath = [];
>--                            // selectors from the parent after the join
>--                            afterParentJoin = [];
>--                            newJoinedSelectorEmpty = true;
>--
>--                            //construct the joined selector - if & is the first thing this will be empty,
>--                            // if not newJoinedSelector will be the last set of elements in the selector
>--                            if (sel.length > 0) {
>--                                newSelectorPath = sel.slice(0);
>--                                lastSelector = newSelectorPath.pop();
>--                                newJoinedSelector = new(tree.Selector)(lastSelector.elements.slice(0));
>--                                newJoinedSelectorEmpty = false;
>--                            }
>--                            else {
>--                                newJoinedSelector = new(tree.Selector)([]);
>--                            }
>--
>--                            //put together the parent selectors after the join
>--                            if (parentSel.length > 1) {
>--                                afterParentJoin = afterParentJoin.concat(parentSel.slice(1));
>--                            }
>--
>--                            if (parentSel.length > 0) {
>--                                newJoinedSelectorEmpty = false;
>--
>--                                // join the elements so far with the first part of the parent
>--                                newJoinedSelector.elements.push(new(tree.Element)(el.combinator, parentSel[0].elements[0].value, 0));
>--                                newJoinedSelector.elements = newJoinedSelector.elements.concat(parentSel[0].elements.slice(1));
>--                            }
>--
>--                            if (!newJoinedSelectorEmpty) {
>--                                // now add the joined selector
>--                                newSelectorPath.push(newJoinedSelector);
>--                            }
>--
>--                            // and the rest of the parent
>--                            newSelectorPath = newSelectorPath.concat(afterParentJoin);
>--
>--                            // add that to our new set of selectors
>--                            selectorsMultiplied.push(newSelectorPath);
>--                        }
>--                    }
>--                }
>--
>--                // our new selectors has been multiplied, so reset the state
>--                newSelectors = selectorsMultiplied;
>--                currentElements = [];
>--            }
>--        }
>--
>--        // if we have any elements left over (e.g. .a& .b == .b)
>--        // add them on to all the current selectors
>--        if (currentElements.length > 0) {
>--            this.mergeElementsOnToSelectors(currentElements, newSelectors);
>--        }
>--
>--        for(i = 0; i < newSelectors.length; i++) {
>--            paths.push(newSelectors[i]);
>--        }
>--    },
>--    
>--    mergeElementsOnToSelectors: function(elements, selectors) {
>--        var i, sel;
>--
>--        if (selectors.length == 0) {
>--            selectors.push([ new(tree.Selector)(elements) ]);
>--            return;
>--        }
>--
>--        for(i = 0; i < selectors.length; i++) {
>--            sel = selectors[i];
>--
>--            // if the previous thing in sel is a parent this needs to join on to it
>--            if (sel.length > 0) {
>--                sel[sel.length - 1] = new(tree.Selector)(sel[sel.length - 1].elements.concat(elements));
>--            }
>--            else {
>--                sel.push(new(tree.Selector)(elements));
>--            }
>--        }
>--    }
>--};
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Selector = function (elements) {
>--    this.elements = elements;
>--};
>--tree.Selector.prototype.match = function (other) {
>--    var len  = this.elements.length,
>--        olen = other.elements.length,
>--        max  = Math.min(len, olen);
>--
>--    if (len < olen) {
>--        return false;
>--    } else {
>--        for (var i = 0; i < max; i++) {
>--            if (this.elements[i].value !== other.elements[i].value) {
>--                return false;
>--            }
>--        }
>--    }
>--    return true;
>--};
>--tree.Selector.prototype.eval = function (env) {
>--    return new(tree.Selector)(this.elements.map(function (e) {
>--        return e.eval(env);
>--    }));
>--};
>--tree.Selector.prototype.toCSS = function (env) {
>--    if (this._css) { return this._css }
>--    
>--    if (this.elements[0].combinator.value === "") {
>--        this._css = ' ';
>--    } else {
>--        this._css = '';
>--    }
>--    
>--    this._css += this.elements.map(function (e) {
>--        if (typeof(e) === 'string') {
>--            return ' ' + e.trim();
>--        } else {
>--            return e.toCSS(env);
>--        }
>--    }).join('');
>--    
>--    return this._css;
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.URL = function (val, paths) {
>--    this.value = val;
>--    this.paths = paths;
>--};
>--tree.URL.prototype = {
>--    toCSS: function () {
>--        return "url(" + this.value.toCSS() + ")";
>--    },
>--    eval: function (ctx) {
>--        var val = this.value.eval(ctx);
>--
>--        // Add the base path if the URL is relative and we are in the browser
>--        if (typeof window !== 'undefined' && typeof val.value === "string" && !/^(?:[a-z-]+:|\/)/.test(val.value) && this.paths.length > 0) {
>--            val.value = this.paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
>--        }
>--
>--        return new(tree.URL)(val, this.paths);
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Value = function (value) {
>--    this.value = value;
>--    this.is = 'value';
>--};
>--tree.Value.prototype = {
>--    eval: function (env) {
>--        if (this.value.length === 1) {
>--            return this.value[0].eval(env);
>--        } else {
>--            return new(tree.Value)(this.value.map(function (v) {
>--                return v.eval(env);
>--            }));
>--        }
>--    },
>--    toCSS: function (env) {
>--        return this.value.map(function (e) {
>--            return e.toCSS(env);
>--        }).join(env.compress ? ',' : ', ');
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file };
>--tree.Variable.prototype = {
>--    eval: function (env) {
>--        var variable, v, name = this.name;
>--
>--        if (name.indexOf('@@') == 0) {
>--            name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value;
>--        }
>--
>--        if (variable = tree.find(env.frames, function (frame) {
>--            if (v = frame.variable(name)) {
>--                return v.value.eval(env);
>--            }
>--        })) { return variable }
>--        else {
>--            throw { type: 'Name',
>--                    message: "variable " + name + " is undefined",
>--                    filename: this.file,
>--                    index: this.index };
>--        }
>--    }
>--};
>--
>--})(require('../tree'));
>--(function (tree) {
>--
>--tree.debugInfo = function(env, ctx) {
>--    var result="";
>--    if (env.dumpLineNumbers && !env.compress) {
>--        switch(env.dumpLineNumbers) {
>--            case 'comments':
>--                result = tree.debugInfo.asComment(ctx);
>--                break;
>--            case 'mediaquery':
>--                result = tree.debugInfo.asMediaQuery(ctx);
>--                break;
>--            case 'all':
>--                result = tree.debugInfo.asComment(ctx)+tree.debugInfo.asMediaQuery(ctx);
>--                break;
>--        }
>--    }
>--    return result;
>--};
>--
>--tree.debugInfo.asComment = function(ctx) {
>--    return '/* line ' + ctx.debugInfo.lineNumber + ', ' + ctx.debugInfo.fileName + ' */\n';
>--};
>--
>--tree.debugInfo.asMediaQuery = function(ctx) {
>--    return '@media -sass-debug-info{filename{font-family:"' + ctx.debugInfo.fileName + '";}line{font-family:"' + ctx.debugInfo.lineNumber + '";}}\n';
>--};
>--
>--tree.find = function (obj, fun) {
>--    for (var i = 0, r; i < obj.length; i++) {
>--        if (r = fun.call(obj, obj[i])) { return r }
>--    }
>--    return null;
>--};
>--tree.jsify = function (obj) {
>--    if (Array.isArray(obj.value) && (obj.value.length > 1)) {
>--        return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
>--    } else {
>--        return obj.toCSS(false);
>--    }
>--};
>--
>--})(require('./tree'));
>--var name;
>--
>--function loadStyleSheet(sheet, callback, reload, remaining) {
>--    var endOfPath = Math.max(name.lastIndexOf('/'), name.lastIndexOf('\\')),
>--        sheetName = name.slice(0, endOfPath + 1) + sheet.href,
>--        contents = sheet.contents || {},
>--        input = readFile(sheetName);
>--        
>--    contents[sheetName] = input;
>--        
>--    var parser = new less.Parser({
>--        paths: [sheet.href.replace(/[\w\.-]+$/, '')],
>--        contents: contents
>--    });
>--    parser.parse(input, function (e, root) {
>--        if (e) {
>--            return error(e, sheetName);
>--        }
>--        try {
>--            callback(e, root, sheet, { local: false, lastModified: 0, remaining: remaining });
>--        } catch(e) {
>--            error(e, sheetName);
>--        }
>--    });
>--}
>--
>--function writeFile(filename, content) {
>--    var fstream = new java.io.FileWriter(filename);
>--    var out = new java.io.BufferedWriter(fstream);
>--    out.write(content);
>--    out.close();
>--}
>--
>--// Command line integration via Rhino
>--(function (args) {
>--    var output,
>--        compress = false,
>--        i;
>--        
>--    for(i = 0; i < args.length; i++) {
>--        switch(args[i]) {
>--            case "-x":
>--                compress = true;
>--                break;
>--            default:
>--                if (!name) {
>--                    name = args[i];
>--                } else if (!output) {
>--                    output = args[i];
>--                } else {
>--                    print("unrecognised parameters");
>--                    print("input_file [output_file] [-x]");
>--                }
>--        }
>--    }
>--
>--    if (!name) {
>--        print('No files present in the fileset; Check your pattern match in build.xml');
>--        quit(1);
>--    }
>--    path = name.split("/");path.pop();path=path.join("/")
>--
>--    var input = readFile(name);
>--
>--    if (!input) {
>--        print('lesscss: couldn\'t open file ' + name);
>--        quit(1);
>--    }
>--
>--    var result;
>--    try {
>--        var parser = new less.Parser();
>--        parser.parse(input, function (e, root) {
>--            if (e) {
>--                error(e, name);
>--                quit(1);
>--            } else {
>--                result = root.toCSS({compress: compress || false});
>--                if (output) {
>--                    writeFile(output, result);
>--                    print("Written to " + output);
>--                } else {
>--                    print(result);
>--                }
>--                quit(0);
>--            }
>--        });
>--    }
>--    catch(e) {
>--        error(e, name);
>--        quit(1);
>--    }
>--    print("done");
>--}(arguments));
>--
>--function error(e, filename) {
>--
>--    var content = "Error : " + filename + "\n";
>--    
>--    filename = e.filename || filename;
>--    
>--    if (e.message) {
>--        content += e.message + "\n";
>--    }
>--
>--    var errorline = function (e, i, classname) {
>--        if (e.extract[i]) {
>--            content += 
>--                String(parseInt(e.line) + (i - 1)) + 
>--                ":" + e.extract[i] + "\n";
>--        }
>--    };
>--
>--    if (e.stack) {
>--        content += e.stack;
>--    } else if (e.extract) {
>--        content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':\n';
>--        errorline(e, 0);
>--        errorline(e, 1);
>--        errorline(e, 2);
>--    }
>--   print(content);
>--}
>-\ No newline at end of file
>--- 
>-1.8.0.1
>-
>diff --git a/lessjs-1.3.1-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch b/lessjs-1.3.1-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch
>new file mode 100644
>index 0000000..ce60ebe
>--- /dev/null
>+++ b/lessjs-1.3.1-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch
>@@ -0,0 +1,43 @@
>+From ea94b55d0b71b79d80ce80cc964983f20e7054d1 Mon Sep 17 00:00:00 2001
>+From: Stephen Gallagher <sgallagh@redhat.com>
>+Date: Wed, 19 Dec 2012 09:06:24 -0500
>+Subject: [PATCH 3/4] substitute paths to use /usr/share instead of /usr/lib
>+
>+---
>+ bin/lessc | 6 +++---
>+ 1 file changed, 3 insertions(+), 3 deletions(-)
>+
>+diff --git a/bin/lessc b/bin/lessc
>+index af96ea237b3fb82284b38babf6562b7c5849f668..231298719ed0b9f745281f71e4cf374aec13c04c 100755
>+--- a/bin/lessc
>++++ b/bin/lessc
>+@@ -5,7 +5,7 @@ var path = require('path'),
>+     sys = require('util'),
>+     os = require('os');
>+ 
>+-var less = require('../lib/less');
>++var less = require('../share/less');
>+ var args = process.argv.slice(1);
>+ var options = {
>+     compress: false,
>+@@ -51,7 +51,7 @@ args = args.filter(function (arg) {
>+             break;
>+         case 'h':
>+         case 'help':
>+-            require('../lib/less/lessc_helper').printUsage();
>++            require('../share/less/lessc_helper').printUsage();
>+             continueProcessing = false;
>+         case 'x':
>+         case 'compress':
>+@@ -99,7 +99,7 @@ if (output) {
>+ if (! input) {
>+     sys.puts("lessc: no input files");
>+     sys.puts("");
>+-    require('../lib/less/lessc_helper').printUsage();
>++    require('../share/less/lessc_helper').printUsage();
>+     currentErrorcode = 1;
>+     return;
>+ }
>+-- 
>+1.8.0.1
>+
>diff --git a/lessjs.spec b/lessjs.spec
>index cf05908..eb23597 100644
>--- a/lessjs.spec
>+++ b/lessjs.spec
>@@ -1,32 +1,16 @@
> Name:           lessjs
>-Version:        1.3.1
>-Release:        5%{?dist}
>+Version:        1.3.3
>+Release:        1%{?dist}
> Summary:        Less.js The dynamic stylesheet language
>-
>-# cssmin.js is licensed under BSD license
>-# everything else is ASL 2.0
>-License:        ASL 2.0 and BSD
>-
>+License:        ASL 2.0
> URL:            http://lesscss.org
>-# The source URL does not match the output filename:
>-# Source0:        https://github.com/cloudhead/less.js/archive/v%{version}.tar.gz
>-Source0: less.js-%{version}.tar.gz
>-
>-# Fedora/EPEL patch to disable YUI compression because lessjs otherwise
>-# would be carrying a bundled copy of cssmin.js
>-Patch0001: 0001-Disable-YUI-compression.patch
>-
>-# Upstream version number is incorrect for 1.3.1
>-Patch0002: 0002-Fix-version-number.patch
>+Source0:        http://registry.npmjs.org/less/-/less-%{version}.tgz
> 
> # Use /usr/share paths instead of /usr/lib
>-Patch0003: 0003-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch
>-
>-# Remove pre-built files from the dist/ directory
>-Patch0004: 0004-Remove-pre-builds.patch
>+Patch0: %{name}-1.3.1-substitute-paths-to-use-usr-share-instead-of-usr-lib.patch
> 
> BuildArch:      noarch
>-BuildRequires:  nodejs
>+BuildRequires:  nodejs-devel
> Requires:       nodejs
> 
> %description
>@@ -35,12 +19,9 @@ and functions. LESS runs on both the client-side (Chrome, Safari, Firefox)
> and server-side, with Node.js and Rhino.
> 
> %prep
>-%setup -q -n less.js-%{version}
>+%setup -q -n package
>+%patch0 -p1
> 
>-%patch0001 -p1
>-%patch0002 -p1
>-%patch0003 -p1
>-%patch0004 -p1
> 
> %build
> # Nothing to be built, we're just carrying around flat files
>@@ -62,6 +43,10 @@ cp -rp lib/less %{buildroot}%{_datadir}
> 
> 
> %changelog
>+* Fri Mar 15 2013 Jamie Nguyen <jamielinux@fedoraproject.org> - 1.3.3-1
>+- update to upstream release 1.3.3
>+- cssmin.js has now been unbundled upstream
>+
> * Thu Feb 14 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.3.1-5
> - Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
> 
>diff --git a/sources b/sources
>index 4d6e6d8..c7124e7 100644
>--- a/sources
>+++ b/sources
>@@ -1 +1 @@
>-ea231720e2d8818055fb9474d7c79d71  less.js-1.3.1.tar.gz
>+b40123e3fc653dc440c577ee9dea3177  less-1.3.3.tgz
>-- 
>1.8.1.4
>

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Attachments on bug 921932: 710531 | 710532