Re: Phil's prompt is not working when LANG is set to UTF-8

[Wael Nasreddine <mla@nasreddine.com>]

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This One Time, at Band Camp, Andrey Borzenkov <arvidjaar@newmail.ru> said, On Fri, Feb 15, 2008 at 10:48:55PM +0300:
> On Thursday 14 February 2008, Peter Stephenson wrote:

> > Wael Nasreddine wrote:
> > > Peter I couldn't install Fedora because it doesn't work with LVM over
> > > DM-Crypt, have you tried my environment ??

> > No, it seems unlikely I'm going to have time for that sort of
> > time-consuming procedure which is any case speculative.  It seems like
> > the next step is understanding the implications of Andrei's findings
> > since he's already narrowed it down.  I don't currently know anything
> > about the system he's talking about.



> I took liberty to move this to workers.

> In case it rings the bell for anyone. Here are prompt lengths computed by
> zsh for phil's prompt in ru_RU.UTF-8 locale (where there were the same
> results for en_US.UTF-8 as well, so at least proper UTF-8 part is correctly
> computed :) )

> (gdb) p rpromptw
> $1 = 12
> (gdb) p lpromptw
> $2 = 9
> (gdb) p lprompth
> $3 = 2
> (gdb) p rprompth
> $4 = 1

> that's absolutely wrong. The actual prompt lengths are (see screenshot)

> lpromptw = 13
> rptomptw = 16 (it has one space in it)

> this perfectly correspnds to something (zsh?) ignoring invalid characters
> with high bit set. In both left and right prompts there are exactly 4 of
> ACS chars.

> I attach both left and ritgh prompts as well.

> ^[[1m^[[36m^[[11m?^[[1m^[[34m?^[[10m(^[[1m^[[36mbor^[[1m^[[33m@^[[1m^[[32mcooker^[[1m^[[33m:^[[1m^[[34m1^[[1m^[[34m)^[[11m?^[[1m^[[36m?                                                                                                       ^[[1m^[[34m?^[[10m(^[[1m^[[35m~^[[1m^[[34m)^[[11m?^[[1m^[[36m?^[[10m
> ^[[1m^[[36m^[[11m?^[[1m^[[34m?^[[10m(^[[1m^[[33m22:51^[[34m:^[[1m^[[37m%^[[1m^[[34m)^[[11m?^[[10m^[[1m^[[36m^[[11m?^[[10m^[[0;10m 
>  ^[[1m^[[36m^[[11m?^[[1m^[[34m?^[[10m(^[[1m^[[33m??????,??????14^[[1m^[[34m)^[[11m?^[[1m^[[36m?^[[10m^[[0;10m

So it does seem a zsh problem after all, file a bug perhaps?

-- 
Wael Nasreddine
http://wael.nasreddine.com
PGP: 1024D/C8DD18A2 06F6 1622 4BC8 4CEB D724  DE12 5565 3945 C8DD 18A2

.: An infinite number of monkeys typing into GNU emacs,
   would never make a good program. (L. Torvalds 1995) :.

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