GNU bug report logs - #103
23.0.60; Segmentation fault loading auto-lang.el

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Package: emacs;

Reported by: intrigeri <intrigeri <at> boum.org>

Date: Sun, 30 Mar 2008 22:15:12 UTC

Severity: normal

Done: Chong Yidong <cyd <at> stupidchicken.com>

Bug is archived. No further changes may be made.

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Message #15 received at 103 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: emacs-devel <at> gnu.org
Cc: 103 <at> debbugs.gnu.org, intrigeri <intrigeri <at> boum.org>
Subject: Re: 23.0.60; Segmentation fault loading auto-lang.el
Date: Tue, 08 Apr 2008 01:29:41 -0400

> - download http://www.marquardt-home.de/auto-lang.el to ~/.elisp/
> - run emacs -Q
> - M-x load-file
> - choose file ~/.elisp/auto-lang.el
> => Emacs segfaults (same result with emacs -Q -nw)

This is due to an infinite nesting depth in regexp-opt, which can be
tracked down to the following problem:

(let ((str (string-as-unibyte "รค")))
  (string-match (char-to-string (string-to-char str)) str))

evaluates to 0 in Emacs 22, and to nil in Emacs 23.  It turns out that
this screws up the use of all-completions in regexp-opt-group.

Anyone have any idea what's going on here?
This bug report was last modified 17 years and 45 days ago.

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