From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.4) Gecko/20030922 Description of problem: Mozilla fails to display MathML with correct font, even if the required MathML fonts are installed (see below). Version-Release number of selected component (if applicable): mozilla-1.4-3.0.18 How reproducible: Always Steps to Reproduce: 1. Go to http://www.mozilla.org/projects/mathml/fonts/ and install the TeX and Mathematica fonts required for Mozilla's MathML functionality. 2. Open the W3C's MathML test suite http://www.w3.org/Math/testsuite/ 3. Actual Results: The font display is completely messed up, with (LaTeX's) \in instead of 2, etc. Expected Results: Correct MathML rendering in compliance to W3C's test suite. Additional info: The Mozilla-Bug http://bugzilla.mozilla.org/show_bug.cgi?id=212400 is likely the cause.
We'll be releasing a 1.4.2 branch build that should fix this soon.
Created attachment 103811 [details] Patch to /usr/lib/mozilla-1.4.3/res/mathml.css With the newest RHEL update, the problem seems to be still there (Mozilla version 1.4.3). However, as I found a solution, I think reopen this bug is appropriate. First some explaination why this behavior is still there: 1. At least on RHEL (because of UTF-8?), it is neccessary for the Latin font to be in front of Symbol (Greek), otherwise the Greek glyph is preferred over the Latin one, even for ordinary Latin letters. See also http://silas.psfc.mit.edu/tth/symfontconfig.html for another reference about this problem. 2. Times is not available as XFT (TrueType) font, therefore it should be changed to one that is available (specifically for RHEL: Thorndale and maybe some people have Times New Roman installed). My proposed change to mathml.css is included. The resulting rendering is not 100% W3C conform, but should be usable now for anyone who install the proper fonts.
It appears that neither the current seamonkey nor the current firefox packages (seamonkey-1.0.4-0.5.1.fc5, firefox-1.5.0.6-2.fc5) in FC5 are Xft-enabled. The mozilla package (mozilla-1.7.13-1.1.fc5) is. Part of the solution to making MathML possible is to have browsers that can access the True Type fonts that support it. That's much better than having the users try to figure out how to find and make accessible any Type 1 Postscript support. The other half of the solution appears to be to have the fonts available accessible. It looks like the mathml-fonts package (mathml-fonts-1.0-21.fc5) installs its fonts in /usr/share/fonts/mathml, but doesn't integrate them into Xft properly per the instructions in, e.g., the Fedora Core 3 or 4 Release Notes. In other words, one needs to run ttmkfdir, mkfontdir, and chkfontpath on any suitable font directories. There may be other font-including directories that are missing this apparatus, too. Apart from the mathml-fonts fonts, one also needs the Mathematica 4.1 fonts in True Type form, and they can't be distributed. The user has to get them from Wolfram. Maybe some kind of "get and install" tool could be provided. Or maybe Wolfram would be kind enough to distribute the configured files in package form? Also, one needs a symbol font, and the easiest ways to get this are to link the AdobeReader font directory, or the OpenWindows one, into /usr/share/fonts, and run the installation scripts on them, too. I don't suppose the Adobe folks would be thrilled to do this, though they do provide their reader in a package format. But, more generally, any True Type font directory in an fc5 package should perhaps be linked to /usr/share/fonts (or installed there) and suitably processed? If all these were done, there would be a good chance that eventually MathML would work out of the box. The general procedure above is suggested at http://draal.physics.wisc.edu/Notes/MathML, on the assumption that one has an Xft-enabled browser.
REOPENED status has been deprecated. ASSIGNED with keyword of Reopened is preferred.
Reporter, are you able to reproduce this bug with the latest firefox/seamonkey package in the latest upgrade of RHEL 3, please?
Probably. I don't believe we ship the right fonts by default. But downloading mathematica should help.
Created attachment 155709 [details] Upstream patch for the upstream bug 212400
Concerning fonts -- we have in Extras mathml-fonts package, which is not perfect (still missing tons of glyphs from Wolfram's Mathematica), but it allows me to got to 27xx on Mozilla character testing (http://www.mozilla.org/projects/mathml/fonts/chars/table.html). Would it be that much difficult to push at least mathml-fonts package into standard spin of Fedora/RHEL? Concerning the W3C testing suite itself, I was able to get through General/Math types and only on General/GenAttribs/attribQuote1 Mozilla complained about missing fonts with proper dialog and with information about where to get proper fonts. Using firefox-1.5.0.10-6.fc6 So, my conclusion is that this should be fixable with newer versions of a gecko-based browser.
My original comments to mcelrath relative to his valuable instructions on how to get MathML working. His steps - what fonts to collect and install and running ttmkfdir, mkfontdir, and chgfontpath have to be followed exactly to get a TrueType solution to work. I never found a working PostScript solution. All the instructions were for different Linux setups than the current Red Hat-Fedora one. Date: Wed, 09 Aug 2006 18:51:20 -0600 To: bob+indexhtml From: John Koontz <koontz.gov> Subject: MathML Wiki Page I'm very grateful for http://draal.physics.wisc.edu/Notes/MathML, which along with the Fedora Core 4 Release Notes helped me get SeaMonkey and Firefox browsing MathML in Fedora Core 5, where the instructions at http://www.mozilla.org/projects/mathml/fonts/ did not. Thanks! Addenda for Fedora Core 5 (FC5) Comment 1 did not seem to apply to Fedora Core 5 (FC5). However, the FC5 package versions of SeaMonkey (c. 1.0.2) and Firefox (c. 1.6) seem to be Xft- disabled. [no longer true] Mozilla (legacy package) is Xft-enabled. [now part of seamonkey, and broken seamonkey has been fixed] To get Xft-enabled versions of the first two (capable of processing True Type fonts), go to mozilla.org and download the tarballs from there. Re. 2.1.1, in Fedora (FC5) you can get the MathML fonts in the mathml-fonts package. They have not been processed with ttmkfdir, mkfontdir, and chgfontpath, however, and you will have to do that per the instructions in the FC4 (but not FC5) release notes at http://fedora.redhat.com/docs/release- notes/fc4 (search for Xft). Re. 2.2, if you have AdobeReader_enu-7.0.8-1 installed, cd /usr/share/fonts ln -s /usr/local/Adobe/Acrobat7.0/Resource/Font/ adobe If you have openoffice.org-core installed, cd /usr/share/fonts ln -s /usr/lib/openoffice.org2.0/share/fonts/truetype openoffice Or maybe ln -s /usr/lib/openoffice.org2.0/share/fonts openoffice would be more kosher, though I'm not sure how that affects the running of ttmkfdir, etc. Re. 4, not necessary in Fedora (FC5), but you do have to run the ttmkfdir, etc., scripts in each directory you appropriate (/usr/share/fonts/mathml), create (/usr/share/fonts/mathematica) or link in (/usr/share/fonts/adobe or openoffice). If you install the object code tarballs for firefox or seamonkey they are best put in /usr/local/appname-appvers where they will not conflict with the existing packages in /usr/bin, /usr/lib, etc. For ease of management, make symbolic links from /usr/local/appname to /usr/local/appname-appvers and from /usr/local/bin/appname to /usr/local/appname/appname, where appname and appvers are seamonkey or firefox and their current versions. This eases changing versions. You'll want /usr/local/bin before /usr/bin in your paths. You can rename /usr/local/bin/appname to appname.off or link it to /usr/bin/appname if needed. Better Wolfram font source: http://support.wolfram.com/mathematica/systems/unix/general/manualfontdownload. html In more detail the process is: Part II: Beautifully (or more beautifully) To get a nicer version - no idea if it is up to snuff with the picky - you need nicer fonts. Here is how you get them. For now the quick version. This is based on http://72.14.203.104/search? q=cache:3jGDIsz_tZAJ:draal.physics.wisc.edu/Notes/MathML+fedora+mozilla+mathml+ ttf&hl=en&gl=us&ct=clnk&cd=5 which starts all too accurately Getting MathML working on linux is a bitch, despite the fact that MathML support is compiled into Mozilla versions 1.4 and higer. The problem is in getting Mozilla to find the required fonts. Here are the basic requirements: A less adequate version with the wrong commands is at http://www.mozilla.org/projects/mathml/fonts/. Get the TTF versions of the Mathematica 4.1 fonts and put them in /usr/share/fonts/mathematica. (Not later versions - 4.1 is what you want.) Make sure the mathml-fonts package is installed, in which case they are in /usr/share/fonts/mathml. Put a links in for the AdobeAcrobat and/or OpenOffice symbol fonts: [107] > ls -l openoffice adobe lrwxrwxrwx 1 root root 42 Aug 8 19:28 adobe - > /usr/local/Adobe/Acrobat7.0/Resource/Font/ lrwxrwxrwx 1 root root 47 Aug 8 19:30 openoffice - > /usr/lib/openoffice.org2.0/share/fonts/truetype Might be more conventional to link above the truetype level in the latter case. You only really need one of these. OpenOffice is probably installed, but you only have the Acrobat fonts if you went to the Adobe site and got the AdobeReader (not Acrobat anymore) package and installed it. Make sure that the Microsoft symbol font (symbol.ttf) is not installed. (It wasn't in my case.) In regard to each of the directories above run Create the /usr/share/fonts/local/ directory (if it doesn't already exist): mkdir /usr/share/fonts/local/ Copy the new font file into /usr/share/fonts/local/ Update the font information by issuing the following commands (note that, due to formatting restrictions, the following commands may appear on more than one line; in use, each command should be entered on a single line): ttmkfdir -d /usr/share/fonts/local/ -o /usr/share/fonts/local/fonts.scale mkfontdir /usr/share/fonts/local/ If you had to create /usr/share/fonts/local/, you must then add it to the X font server (xfs) path: chkfontpath --add /usr/share/fonts/local/ Substitute the actual directory, e.g., mathml, for local. (Per http://fedora.redhat.com/docs/release-notes/fc4/) Note that "fontpath" here is what you otherwise manipulate with xset fp (see man page), but this is better and permanent. (I don't think xset is permanent.) This is pretty much it. === The required fonts are MathML + Mathematica 4.1 + a Symbol font. The main thing that is difficult is providing the Mathematica 4.1 True Type fonts. Wolfram does not seem to provide a suitable distribution on these, though they do distribute them with a fair degree of freedom. Perhaps they could be persuaded to do so, or perhaps an equivalent that is sutably distributed can be found. Their policies are stated at http://support.wolfram.com/mathematica/systems/windows/general/latestfonts.html (referred from http://www.mozilla.org/projects/mathml/fonts/) For some reason they provide the files in an easy format for Windows and Macs, but not for Linux. They require you to come to this site. This precludes a *.rpm in general circulation. As far as alternatives, see http://www.stixfonts.org/. Very close.
This bug is filed against RHEL 3, which is in maintenance phase. During the maintenance phase, only security errata and select mission critical bug fixes will be released for enterprise products. Since this bug does not meet that criteria, it is now being closed. For more information of the RHEL errata support policy, please visit: http://www.redhat.com/security/updates/errata/ If you feel this bug is indeed mission critical, please contact your support representative. You may be asked to provide detailed information on how this bug is affecting you.