From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: efficient regular expression that never matches
Date: Fri, 20 Nov 2015 10:13:11 -0500 [thread overview]
Message-ID: <jwvwptck8nt.fsf-monnier+gmane.emacs.help@gnu.org> (raw)
In-Reply-To: c2e414ce-cc63-4270-9452-b0dc517d1a95@googlegroups.com
> I'm thinking of "$a", but it should scan all the string until end
> of the string, so it may not be efficient.
IIRC I used something like "\\`\\'a".
Stefan
next prev parent reply other threads:[~2015-11-20 15:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-20 9:35 efficient regular expression that never matches cinsk
2015-11-20 15:13 ` Stefan Monnier [this message]
2015-11-20 15:59 ` John Wiegley
[not found] ` <mailman.342.1448035187.31583.help-gnu-emacs@gnu.org>
2015-11-21 5:52 ` cinsk
2015-11-21 15:04 ` Stefan Monnier
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