GNU bug report logs - #5977
24.0.50; Lao HELLO is incorrectly displayed

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Message #23 received at 5977 <at> debbugs.gnu.org (full text, mbox):

From: Jason Rumney <jasonr <at> gnu.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Peter_Dyballa <at> Freenet.DE, 5977 <at> debbugs.gnu.org
Subject: Re: bug#5977: 24.0.50; Lao HELLO is incorrectly displayed
Date: Wed, 21 Apr 2010 07:16:27 +0800

Eli Zaretskii <eliz <at> gnu.org> writes:

> Are you saying that you don't see similar problems on MS-Windows?
> Because I do.

I haven't tried on Windows.  But on Linux, all the Indic scripts are
displaying incorrectly, some showing on two lines instead of one, and
cursor movement through them makes the display change - probably an
indication that Emacs thinks it is displaying something different than
what is actually displayed at that point.

> The Lao script does not use any R2L characters (AFAICS), so the only
> issue with the bidi code here is character compositions.

Yes, composition might be the common factor here, though I didn't see
any problem with Thai, which also uses composition but not
libotf/uniscribe.  I did not mean that it had anything to do with R2L,
just that the bidi merge was the point in time that this broke.

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