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From: storm@cua.dk (Kim F. Storm)
Cc: rms@gnu.org, emacs-devel@gnu.org
Subject: Re: regex and case-fold-search problem
Date: 29 Aug 2002 14:33:42 +0200	[thread overview]
Message-ID: <5x8z2pj13t.fsf@kfs2.cua.dk> (raw)
In-Reply-To: <200208290853.RAA03185@etlken.m17n.org>

> 
> Consider the situation that one writes this regexp
> 	"[\000-\xffff]"
> to search only Unicode BMP chars in emacs-unicode.  I
> suspect that, if we implent the above method, compiling this
> regexp when case-fold-search is non-nil takes longer time
> than people usually expect.
> 
> So, I agree with Stephen that his method is good enough.

IMO, it is wrong to handle case-fold-search for regexp ranges by
trying to modify the interpretation of the regex range.

Instead, the regex matcher should try to upcase and lowercase each
character in the string and see if either of these caracters are
within the given range.

-- 
Kim F. Storm <storm@cua.dk> http://www.cua.dk

  reply	other threads:[~2002-08-29 12:33 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-23  6:25 regex and case-fold-search problem Kenichi Handa
2002-08-23 15:56 ` Eli Zaretskii
2002-08-24  0:51   ` Kenichi Handa
2002-08-24  1:03     ` Miles Bader
2002-08-24  9:42       ` Eli Zaretskii
2002-08-24 16:16       ` Andreas Schwab
2002-08-26  1:54         ` Miles Bader
2002-08-26 16:11           ` Stefan Monnier
2002-08-26 21:51         ` Richard Stallman
2002-08-24  9:39     ` Eli Zaretskii
2002-08-26  1:29       ` Kenichi Handa
2002-08-26  2:31         ` Miles Bader
2002-08-25 22:21     ` Kim F. Storm
2002-08-23 17:36 ` Stefan Monnier
2002-08-23 21:52   ` Stefan Monnier
2002-08-24  1:16   ` Kenichi Handa
2002-08-25 18:52     ` Stefan Monnier
2002-08-26  1:56       ` Kenichi Handa
2002-08-24 10:40   ` Kai Großjohann
2002-08-26 21:51 ` Richard Stallman
2002-08-29  8:53   ` Kenichi Handa
2002-08-29 12:33     ` Kim F. Storm [this message]
2002-08-29 13:38       ` Kenichi Handa
2002-08-29 15:00         ` Kim F. Storm
2002-08-29 16:00         ` Stefan Monnier
2002-08-30  1:11           ` Kenichi Handa
2002-08-30 19:19             ` Richard Stallman
2002-08-30 19:19     ` Richard Stallman
2002-08-30 20:08       ` Stefan Monnier
2002-09-01 13:15         ` Richard Stallman
2002-09-01 16:26           ` Stefan Monnier
2002-09-02 14:54             ` Richard Stallman
2002-09-02 16:58               ` Stefan Monnier
2002-09-04 14:13                 ` Richard Stallman
2002-09-04 16:04                   ` Stefan Monnier
2002-09-05 18:02                     ` Richard Stallman
2002-09-06  1:00                       ` re-search-forward seems to be broken Miles Bader
2002-09-06 20:03                         ` Richard Stallman
2002-08-31  6:14       ` regex and case-fold-search problem Eli Zaretskii
2002-09-01 13:14         ` Richard Stallman

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