On Wednesday 13 February 2008, Andrey Borzenkov wrote:
> On Monday 11 February 2008, Peter Stephenson wrote:
> >
> > On Mon, 11 Feb 2008 16:07:09 +0100
> > antho.charles@xxxxxxxxx wrote:
> > > I didn't have this problem on Debian etch, but it appears when I
> > > upgraded to lenny. It's the same problem: if I set LANG to a non utf8
> > > encoding (fr_FR instead of fr_FR.UTF-8), RPROMPT is good, otherwise
> > > it's partially on another line and the cusor is after RPROMPT.
> > > (cf. http://tinyurl.com/3xjeqt)
> >
> > Sounds like it ought to be fairly reproducible, but it's not happening on
> > Fedora 8 (and it still sounds suspiciously like the shell is getting duff
> > information about the environment, though that's certainly not the only
> > possibility). I've tried adding multibyte characters to the command line
> > and complicating the RPROMPT and even adding multibyte characters to that,
> > but it still works OK.
> >
> > Are there any particular things on the command line, forms of RPROMPT etc.
> > etc. that show this up? (We really need something that narrows this down.)
> >
>
> I can reproduce it on Mandriva cooker with locale en_US.UTF-8 or ru_RU.UTF-8.
It
> does not matter whether there are UTF-8 characters on the screen (at least, I
am
> not sure whether there are - en_US.UTF-8 should not emit any non-ASCII strings
> as far as I can tell).
>
Actually the problem seems to be that terminal description contains non-UTF-8
conform characters.
{pts/0}% infocmp | grep acsc
acsc=``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
{pts/0}% infocmp linux | grep acsc
acsc=+\020\,
\021-\030.^Y0\333`\004a\261f\370g\361h\260i\316j\331k\277l\332m\300n\305o~p\304q\304r\304s_t\303u\264v\301w\302x\263y\363z\362
{\343|\330}\234~\376,
the first one is for dtterm, the second - for linux console.
The prompt is using q, l, m, j, k - at least some of them have high bit set.
So something gets confused computing prompt width. I am not really sure
how to fix it except teaching zsh about ACS mode. Is there any curses function
that would return screen width of character string?
Attachment:
signature.asc
Description: This is a digitally signed message part.