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Offset error (when using PS1 with colors and newline)

From: dAniel hAhler
Subject: Offset error (when using PS1 with colors and newline)
Date: Thu, 12 Jul 2007 01:07:36 +0200
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Configuration Information [Automatically generated, do not change]:
Machine: i486
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i486' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i486-pc-linux-gnu' 
-DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL 
-DHAVE_CONFIG_H   -I.  -I../bash -I../bash/include -I../bas
h/lib   -g -O2 -Wall
uname output: Linux base 2.6.22-7-generic #1 SMP Mon Jun 25 17:33:14 GMT 2007 
i686 GNU/Linux
Machine Type: i486-pc-linux-gnu

Bash Version: 3.2
Patch Level: 17
Release Status: release

        If using colors and a newline (\n) in PS1, there is some offset error,
        with autocompletion or ctrl-a. It appears to be related to readline.

        Please see https://bugs.launchpad.net/ubuntu/+source/bash/+bug/119938
        for the bug reported in Ubuntu and another recipe to reproduce it.

        1. Set PS1="\033[01;37m[ \[\033[01;34m\]\w\[\033[00m\] 
\033[01;37m]\n\$\033[00m "
        2. Type "foo bar baz"
        3. Press ctrl+a
        4. Cursor should jump back to the beginning of the line, but instead 
jumps back to "foo b."

        This is how it looks like with "_" being the cursor:
        foo b_ar baz

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