GNU bug report logs - #55744
infinite loop

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Message #41 received at 55744 <at> debbugs.gnu.org (full text, mbox):

From: Richard Stallman <rms <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: danielrichardgrayson <at> gmail.com, 55744 <at> debbugs.gnu.org
Subject: Re: bug#55744: infinite loop
Date: Mon, 06 Jun 2022 18:15:06 -0400

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  > That's a regexp with a lot of backtracking, I think (i.e., elements that
  > can be matched both by the ?'s as well as the two *'s).  So matching
  > this will be slow, which results in the hangs you're seeing when Emacs
  > is trying to match that to the text in the buffer.

Would it make sense to say more about this point in the Emacs Lisp Manual
where it describes regexps?

-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)

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