Re: Prompt length calculation fails when UTF-8 is used within \[ \]

[Chet Ramey]

Lasse Kärkkäinen wrote:
>> Can you reproduce this with bash-4.0 with all 24 patches applied?  I
>> still have more testing to do, but I haven't been able to reproduce
>> it on my Mac OS X development machines.
> 
> Dunno what was wrong, but redownloading the patches solved the patching
> issue.
> 
> Compiled with all the patches applied (there were a few rejects, though)
> and the original bug still remains.

There should not have been any rejects -- there are not when I apply
them using `patch -p0'.

In any case, I was able to reproduce this on an Ubuntu system.  It's a
hard problem:  how to accurately calculate display position when
multibyte characters are present, but will not be sent to the display,
and the information about invisible sequences has been lost.

I believe I have a fix, but it will require considerable testing, and
will probably not appear until bash-4.1.

Chet


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer

Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/