[Emacs-bug-tracker] bug#7227: closed (re-search-forward goes infinite loop with dash inside [])

[GNU bug Tracking System]

Your message dated Fri, 22 Oct 2010 10:55:43 +0300
with message-id <address@hidden>
and subject line Bug#7227 Close bts:gnu
has caused the GNU bug report #7227,
regarding re-search-forward goes infinite loop with dash inside []
to be marked as done.

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-- 
7227: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7227
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> --- Begin Message ---
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> Subject: 
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> re-search-forward goes infinite loop with dash inside []
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> Date: 
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> Sat, 16 Oct 2010 12:16:01 +0300
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> Package: emacs
> Version: 23.2+1-4
> Severity: normal
>
> Executing the following code causes Emacs to go into infinite loop.
> Simply run it behind the last paren with C-x C-e
>
> (re-search-forward "^\\([a-z0-9.-]+\\)+[ \t]+\\([0-9]+\\) +\\([a-z].*\\)")
>                         ==========
>
> If the dash is taken awy from the "[a-z0-9.-]", this code does not cause
> infinite loop:
>
> (re-search-forward "^\\([a-z0-9.]+\\)+[ \t]+\\([0-9]+\\) +\\([a-z].*\\)")
>
> TEST ROWS FOR THE REGEXPS:
>
> row-one 1234 rest of line
>
> row2    1234 rest of line
>
> TEST SETUP
>
> emacs -Q --no-site-file
> <copy the re-search-forward lisp statements into buffer>
> <copy the test rows into buffer>
> <Execute lisp statements>
>
> -- System Information
> Debian Release: squeeze/sid
>   APT Prefers testing
>   APT policy: (990, testing) (500, unstable) (1, experimental)
> Architecture: amd64
> Kernel: Linux picasso 2.6.32-5-amd64 #1 SMP Fri Sep 17 21:50:19 UTC 2010 x86_64 
> GNU/Linux
> Locale: LANG=en_DK.UTF-8
>
> -- Versions of packages `emacs depends on'.
> Depends:
> emacs23         23.2+1-4        GNU Emacs is the extensible self-documenting
> emacs23-lucid   23.2+1-4        GNU Emacs is the extensible self-documenting
> emacs23-nox     23.2+1-4        GNU Emacs is the extensible self-documenting
>
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> --- End Message ---
> --- Begin Message ---
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>
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> Subject: 
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> Bug#7227 Close bts:gnu
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> Date: 
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> Fri, 22 Oct 2010 10:55:43 +0300
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> Reason for close:
>
> Not a bug. In non-matching case, the regexp engine pumps up; thus "Loop
> effect" feel.
>
>
> --- End Message ---