From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Subject: Re: Embedded modifiers in the regex engine
Date: Thu, 25 Feb 2016 16:05:03 -0500 [thread overview]
Message-ID: <jwv37sg33lc.fsf-monnier+gmane.emacs.devel@gnu.org> (raw)
In-Reply-To: m21t81nwt2.fsf@newartisans.com
> There's also been talking of rewriting the regex code, since it has acquired
> much baggage over the years.
Actually, I don't think it has much baggage, because it mostly hasn't
been touched over the years (at least the regexp.c code).
The main problem with it is the fact that it's a plain backtracking
algorithm (i.e. exponential worst case), and that it's our own so it
doesn't benefit from improvements added to other regexp engines.
Stefan
next prev parent reply other threads:[~2016-02-25 21:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-25 1:32 Embedded modifiers in the regex engine Dima Kogan
2016-02-25 6:11 ` John Wiegley
2016-02-25 21:05 ` Stefan Monnier [this message]
2016-02-25 16:15 ` Eli Zaretskii
2016-02-26 7:19 ` Dima Kogan
2016-02-26 9:08 ` Eli Zaretskii
2016-02-28 1:50 ` Dima Kogan
2016-02-28 16:00 ` Eli Zaretskii
2016-02-29 13:30 ` Richard Stallman
2016-03-01 0:49 ` Aurélien Aptel
2016-03-01 16:55 ` Richard Stallman
2016-03-09 0:34 ` Dima Kogan
2016-03-28 0:23 ` Dima Kogan
2016-03-28 15:28 ` Eli Zaretskii
2016-03-28 18:05 ` Dima Kogan
2016-03-28 18:24 ` Eli Zaretskii
2016-03-29 21:23 ` Dima Kogan
2016-03-31 16:28 ` Eli Zaretskii
2016-04-23 4:17 ` Dima Kogan
2016-04-23 7:48 ` Eli Zaretskii
2016-04-24 7:34 ` Dima Kogan
2016-03-28 16:09 ` Stefan Monnier
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