Bug 678578

Summary: Cursor position when completing and using a prompt with colour escape characters is wrong
Product: [Fedora] Fedora Reporter: Enrique <cquike>
Component: zshAssignee: James Antill <james.antill>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 13CC: james.antill
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2011-02-18 15:03:32 UTC Type: ---
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Description Enrique 2011-02-18 14:08:39 UTC 
Description of problem:

 I am using a prompt with some colour characters, like:

PROMPT=$'\e[0;32muser@host:\e[0;34m%/+ \e[0m'

which uses escape sequences to display green and blue colours.
However, if I press tab to complete files, the cursor position is moved to the right, like:

user@host:/tmp+ ls file           ls file
file1  file2
 
 The first "ls file" is what I typed, while the second one appears when I press tab. It seems that the sequence characters are also counted to place the cursor after completion.
 Related to that is the breaking of long lines before one reaches the rightmost end of the terminal. That makes also very annoying to recover commands from the history longer than the terminal width.


How reproducible:
 
 Always
Comment 1 James Antill 2011-02-18 15:03:32 UTC 
1. Don't use \e directly, use %F{red} and %K{blue} etc.

2. Use %{\e[0;32m%}blah ... which tells the prompt that the characters are zero width (also see the docs. for %G.
Comment 2 Enrique 2011-02-19 18:18:28 UTC 
 Option 2. worked perfectly. It is a pleasure to see a promptly and accurate response.
 Thank you!