From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: will we ever have zero width assertions in regexps?
Date: Wed, 26 Jan 2011 21:21:18 -0500 [thread overview]
Message-ID: <jwvsjwfm6ow.fsf-monnier+gnu.emacs.help@gnu.org> (raw)
In-Reply-To: mailman.6.1296092730.6982.help-gnu-emacs@gnu.org
> Indeed. I'm using Emacs 23.2.1, so I don't know whether this is already in
> the latest CVS version. But assuming it's not, is this feature on the radar
> of the developers?
No. There hasn't been much demand/interest for it, tho IIRC someone
posted a patch to implement it at some point in the past.
I think there'd be more interest in extending regexps to PEG in a way
similar to Lua's Lpeg. I myself would also be more interested in
replacing the backtracking matcher with a non-backtracking one (for the
cases where backtracking is not required by backrefs).
Stefan
next prev parent reply other threads:[~2011-01-27 2:21 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.1.1296054361.23496.help-gnu-emacs@gnu.org>
2011-01-26 15:58 ` will we ever have zero width assertions in regexps? Stefan Monnier
2011-01-27 1:45 ` Le Wang
[not found] ` <mailman.6.1296092730.6982.help-gnu-emacs@gnu.org>
2011-01-27 2:21 ` Stefan Monnier [this message]
2011-01-27 6:34 ` Ilya Zakharevich
2011-01-27 16:10 ` Stefan Monnier
2011-01-28 23:49 ` Ilya Zakharevich
2011-01-29 2:51 ` Stefan Monnier
2011-01-29 22:28 ` Ilya Zakharevich
2011-01-31 16:08 ` Stefan Monnier
2011-01-31 17:10 ` Ilya Zakharevich
2011-01-31 21:29 ` Stefan Monnier
2011-02-02 15:09 ` Ilya Zakharevich
2011-02-07 20:30 ` Stefan Monnier
2011-02-08 22:41 ` Ilya Zakharevich
2011-01-26 14:55 Le Wang
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