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bug#4209: 23.1; Emacs 23.1 regression in re-search-forward
From: |
Christopher J. Madsen |
Subject: |
bug#4209: 23.1; Emacs 23.1 regression in re-search-forward |
Date: |
20 Aug 2009 00:50:33 -0000 |
I've found a regression in Emacs 23.1 (versus Emacs 22.3). I've
narrowed it down to this test case:
;--- re-bug.el starts here
(set-buffer (get-buffer-create "*Test Buffer*"))
(insert "\xC2\x4C\xEF\x77\xC6\x69\x8C\x0A")
(goto-char (point-min))
(message "looking-at: %s" (looking-at "\\`\xC2\x4C\xEF\x77\xC6\x69\x8C\x0A"))
(message "re-search-forward: %s"
(re-search-forward "\\`\xC2\x4C\xEF\x77\xC6\x69\x8C\x0A" 100 t))
;--- re-bug.el ends here
Then at the command line:
$ emacs-22 --batch -Q -l re-bug.el
looking-at: t
re-search-forward: 9
$ emacs-23 --batch -Q -l re-bug.el
looking-at: t
re-search-forward: nil
As you can see, looking-at succeeds in both versions, but
re-search-forward fails in Emacs 23. I don't know why. It seems like
the functions should either both succeed or both fail.
For comparison, here's the version of Emacs 22 that I'm using:
GNU Emacs 22.3.1 (i686-pc-linux-gnu, GTK+ Version 2.12.11)
of 2009-04-06 on byte
Windowing system distributor `The X.Org Foundation', version 11.0.10503000
configured using `configure '--prefix=/usr' '--host=i686-pc-linux-gnu'
'--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share'
'--sysconfdir=/etc' '--localstatedir=/var/lib' '--program-suffix=-emacs-22'
'--infodir=/usr/share/info/emacs-22' '--without-carbon' '--with-sound'
'--with-x' '--with-toolkit-scroll-bars' '--with-jpeg' '--with-tiff'
'--with-gif' '--with-png' '--with-xpm' '--with-x-toolkit=gtk'
'--without-hesiod' '--without-kerberos' '--without-kerberos5'
'--build=i686-pc-linux-gnu' 'build_alias=i686-pc-linux-gnu'
'host_alias=i686-pc-linux-gnu' 'CFLAGS=-march=prescott -O2 -pipe'
'LDFLAGS=-Wl,-O1''
And this is the Emacs 23 information:
In GNU Emacs 23.1.1 (i686-pc-linux-gnu, GTK+ Version 2.16.5)
of 2009-08-10 on byte
Windowing system distributor `The X.Org Foundation', version 11.0.10503000
configured using `configure '--prefix=/usr' '--host=i686-pc-linux-gnu'
'--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share'
'--sysconfdir=/etc' '--localstatedir=/var/lib' '--program-suffix=-emacs-23'
'--infodir=/usr/share/info/emacs-23' '--with-sound' '--with-x'
'--with-toolkit-scroll-bars' '--with-gif' '--with-jpeg' '--with-png'
'--with-rsvg' '--with-tiff' '--with-xpm' '--without-xft' '--without-libotf'
'--without-m17n-flt' '--with-x-toolkit=gtk' '--without-hesiod'
'--without-kerberos' '--without-kerberos5' '--with-gpm' '--with-dbus'
'--build=i686-pc-linux-gnu' 'build_alias=i686-pc-linux-gnu'
'host_alias=i686-pc-linux-gnu' 'CFLAGS=-march=core2 -O2 -pipe'
'LDFLAGS=-Wl,-O1''
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.utf8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default-enable-multibyte-characters: t
Major mode: Fundamental
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- bug#4209: 23.1; Emacs 23.1 regression in re-search-forward,
Christopher J. Madsen <=