From: Bruno Haible <bruno@clisp.org>
To: emacs-devel@gnu.org
Subject: Re: convert regex.c, strftime.c mktime.c to standard C
Date: Sat, 20 Nov 2010 12:00:06 +0100 [thread overview]
Message-ID: <201011201200.06827.bruno@clisp.org> (raw)
In-Reply-To: <E1PI77G-0006Ej-Ep@fencepost.gnu.org>
Richard Stallman asked:
> regexp.c might be harder. Would Emacs work with the current
> regex.c from gnulib, or does it lack some features added for Emacs?
Emacs appears to rely on an efficient re_search_2 and re_match_2 function.
Whereas the implementation of re_search_2 and re_match_2 in glibc and gnulib
concatenates the two given strings in a single malloc'ed area, performs the
search, and then frees the malloc'ed area. Depending on the typical sizes of
strings that are passed to re_search_2 and re_match_2, this may or may not
be a performance killer.
Bruno
next prev parent reply other threads:[~2010-11-20 11:00 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-15 6:03 convert regex.c, strftime.c mktime.c to standard C Dan Nicolaescu
2010-11-15 17:19 ` Stefan Monnier
2010-11-15 22:01 ` Richard Stallman
2010-11-16 15:45 ` Dan Nicolaescu
2010-11-17 19:29 ` Richard Stallman
2010-11-18 4:21 ` Dan Nicolaescu
2010-11-19 6:16 ` Richard Stallman
2010-11-19 7:39 ` Eli Zaretskii
2010-11-19 16:58 ` Chong Yidong
2010-11-19 17:10 ` Sam Steingold
2010-11-19 17:15 ` Lars Magne Ingebrigtsen
2010-11-19 17:52 ` Eli Zaretskii
2010-11-19 18:02 ` Lars Magne Ingebrigtsen
2010-11-19 18:10 ` Eli Zaretskii
2010-11-19 18:54 ` Lars Magne Ingebrigtsen
2010-11-19 19:05 ` Lars Magne Ingebrigtsen
2010-11-19 19:23 ` Lars Magne Ingebrigtsen
2010-11-19 18:11 ` Sven Joachim
2010-11-19 18:10 ` Andreas Schwab
2010-11-20 11:57 ` Bruno Haible
2010-11-20 12:35 ` Eli Zaretskii
2010-11-20 15:43 ` Bruno Haible
2010-11-20 17:19 ` Eli Zaretskii
2010-11-21 0:37 ` Bruno Haible
2010-11-20 17:52 ` David De La Harpe Golden
2010-11-21 0:14 ` Bruno Haible
2010-11-20 11:00 ` Bruno Haible [this message]
2010-11-21 7:42 ` Richard Stallman
2010-11-21 17:25 ` Lars Magne Ingebrigtsen
2010-11-22 16:35 ` Richard Stallman
2010-11-22 16:45 ` Lars Magne Ingebrigtsen
2010-11-22 16:59 ` Lennart Borgman
2010-11-22 19:38 ` Islands and streams [Was: convert regex.c, .... to standard C] Alan Mackenzie
2010-11-23 1:20 ` David De La Harpe Golden
2010-11-23 1:26 ` Lennart Borgman
2010-11-23 4:48 ` Stefan Monnier
2010-11-23 18:26 ` Eli Zaretskii
2010-11-23 19:01 ` Lennart Borgman
2010-11-23 20:08 ` Stefan Monnier
2010-11-23 9:21 ` Islands and streams David Kastrup
2010-11-23 22:23 ` Alan Mackenzie
2010-11-23 22:42 ` Lennart Borgman
2010-11-24 17:13 ` Islands and streams [Was: convert regex.c, .... to standard C] Chong Yidong
2010-11-22 19:39 ` convert regex.c, strftime.c mktime.c to standard C Stefan Monnier
2010-11-23 17:19 ` Richard Stallman
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