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From: Ralf Angeli <angeli@caeruleus.net>
Cc: emacs-devel@gnu.org
Subject: Re: Progressively slow pattern match
Date: Wed, 17 May 2006 21:50:39 +0200	[thread overview]
Message-ID: <87r72sa0s0.fsf@neutrino.caeruleus.net> (raw)
In-Reply-To: 851wusphnd.fsf@lola.goethe.zz

* David Kastrup (2006-05-17) writes:

> Ralf Angeli <angeli@caeruleus.net> writes:
>
>> (looking-at "\\(%+\\)*foo")
[...]
>> Is this a deficiency in Emacs?  Is there a way matching can be sped up
>> with this or maybe another, equivalent regexp?
>
> Uh, "\\(%+\\)?foo" maybe?

The original regexp looks something like
"\\(%+[ \t]*\\)*foo"
in order to match stuff like
%% %% %% foo

-- 
Ralf

  parent reply	other threads:[~2006-05-17 19:50 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-17 19:33 Progressively slow pattern match Ralf Angeli
2006-05-17 19:37 ` David Kastrup
2006-05-17 19:50   ` Kevin Rodgers
2006-05-17 19:50   ` Ralf Angeli [this message]
2006-05-17 20:00     ` Alan Mackenzie
2006-05-17 21:13       ` Ralf Angeli
2006-05-17 20:04     ` David Kastrup
2006-05-17 20:21     ` Stuart D. Herring
2006-05-17 19:53 ` Alan Mackenzie
2006-05-17 23:13 ` Richard Stallman

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