Re: accents

[Chet Ramey]

On 5/9/11 10:46 AM, Thomas De Contes wrote:
> Configuration Information [Automatically generated, do not change]:
> Machine: i386
> OS: darwin10.7.0
> Compiler: /usr/bin/gcc-4.2
> Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i386' 
> -DCONF_OSTYPE='darwin10.7.0' -DCONF_MACHTYPE='i386-apple-darwin10.7.0' 
> -DCONF_VENDOR='apple' 
> -DLOCALEDIR='/Users/thomas/Administration-ordinateur/autoinstall/macports/share/locale'
>  -DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H -DMACOSX   -I.  -I. -I./include 
> -I./lib  
> -I/Users/thomas/Administration-ordinateur/autoinstall/macports/include -pipe 
> -O2 -arch x86_64
> uname output: Darwin tDeContes-fixe.local 10.7.0 Darwin Kernel Version 
> 10.7.0: Sat Jan 29 15:17:16 PST 2011; root:xnu-1504.9.37~1/RELEASE_I386 i386
> Machine Type: i386-apple-darwin10.7.0
> 
> Bash Version: 4.2
> Patch Level: 8
> Release Status: release
> 
> 
> Description:
> 
> 1
> when i do
> PS1="&# $PS1"
> then I have problems since there is some accents in my command lines :
> http://cjoint.com/data1/1dweGsOZD6M.htm
> http://cjoint.com/data1/1dweHvDnu8H.htm
> http://cjoint.com/data1/1dweHSHlKQq.htm
> http://cjoint.com/data1/1dweIqnfKNe.htm
> http://cjoint.com/data1/1dweINbOCMJ.htm
> http://cjoint.com/data1/1dweJgK8K6m.htm
> http://cjoint.com/data1/1dweJGszDSY.htm
> http://cjoint.com/data1/1dweLRlowWS.htm
> 
> i heard that you had the problem without having to do
> PS1="&# $PS1"
> and that you corrected it in that case
> 
> 2
> without doing
> PS1="&# $PS1"
> i don't have problem when there is just one accent on a small line, but i 
> have a lot of them when the command line is larger than the terminal and is 
> displayed on several lines in the terminal
> 
> Do you need screen captures too ?
> 
> 
> Repeat-By:
> 
> make a file and give it a name containing an accent
> 
> 1
> - execute
> PS1="&# $PS1"
> - drag & drop the file with the accent
> - use "top arrow" and "bottom arrow" to move in the history :
> at each time you move on the line containing an accent, it eats one character
> 
> 2
> - type "enter" several times, to get a lot of lines printed on the terminal
> - drag & drop the file with the accent several times, until it makes a 
> command line too long to be written on only one line (the command line should 
> be larger than the terminal) :
> it should already begin to have a strange behavior, at this time (it doesn't 
> continue on the next line)
> - use "top arrow" and "bottom arrow" to move in the history :
> at each time you move on the line containing an accent, it eats not only 
> characters, but lines

These are both the result of a bug in Mac OS X.  Its implementation of
wcwidth doesn't return correct results for Unicode and UTF-8 combining
characters.  Take a look at my messages from yesterday for more details.

Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/