GNU bug report logs - #540
23.0.60; Unicode search bug

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Juri Linkov <juri <at> jurta.org>
Subject: bug#540 closed by Chong Yidong <cyd <at> stupidchicken.com> (Re: 
 bug#540: 23.0.60; Unicode search bug)

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This is an automatic notification regarding your bug report
which was filed against the emacs package:

#540: 23.0.60; Unicode search bug

It has been closed by Chong Yidong <cyd <at> stupidchicken.com>.

Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact Chong Yidong <cyd <at> stupidchicken.com> by
replying to this email.


-- 
540: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=540
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Chong Yidong <cyd <at> stupidchicken.com>
To: Andreas Schwab <schwab <at> suse.de>
Cc: 540-done <at> debbugs.gnu.org, Kenichi Handa <handa <at> m17n.org>
Subject: Re: bug#540: 23.0.60; Unicode search bug
Date: Wed, 27 Aug 2008 10:34:40 -0400

Andreas Schwab <schwab <at> suse.de> writes:

> Should be fixed now.

Thanks!

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From: Juri Linkov <juri <at> jurta.org>
To: emacs-pretest-bug <at> gnu.org
Subject: 23.0.60; Unicode search bug
Date: Sun, 06 Jul 2008 21:43:23 +0300

There is a weird bug in searching Unicode text.  The search function
fails on Cyrillic letters between codepoints #x0400 and #x041f, but
successfully finds a Cyrillic letter between #x0420 and #x042f.

I tried to debug this and see that in case of failure
it calls `boyer_moore', and in case of successful search
it calls `simple_search'.  I checked the Unicode properties,
but everything seems correct.

This bug didn't exist before the Unicode merge.

The easiest way to reproduce it: run `emacs -Q',
put in the *scratch* buffer the following 4 lines
(note the leading space):

(search-forward " П" nil t)
(search-forward " Р" nil t)
 П
 Р

and type `C-x C-e' after each of first two lines.

In GNU Emacs 23.0.60 (x86_64-pc-linux-gnu)
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

-- 
Juri Linkov
http://www.jurta.org/emacs/

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