From: "Perry E. Metzger" <perry@piermont.com>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: Daniel Colascione <dancol@dancol.org>,
Stefan Monnier <monnier@iro.umontreal.ca>,
emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] master 938d252 4/4: Make regex matching reentrant; update syntax during match
Date: Tue, 19 Jun 2018 12:27:00 -0400 [thread overview]
Message-ID: <20180619122700.6e15d6d2@jabberwock.cb.piermont.com> (raw)
In-Reply-To: <68752b66-75d2-a732-6ce2-3d8a13b7ff37@cs.ucla.edu>
On Tue, 19 Jun 2018 09:20:43 -0700 Paul Eggert <eggert@cs.ucla.edu>
wrote:
> If we're going to go to that much work, why not use glibc regex? It
> uses a DFA and falls back on backtracking only when needed.
> Although glibc regex isn't maintained that well, it's at least
> maintained, which TRE is not. And it does have some advantages: it
> has an API that is like Emacs src/regex.c, and it won't have any
> licensing issues. Its main disadvantage (it doesn't support split
> buffers) could be overcome fairly easily, either by adding support
> for that back into the library, or arranging for a single array
> whenever the regex matcher is called.
That's also an option. I really like the idea of being able to do
approximate searches in files, but it's not that big a deal. (Does
the glibc stuff have appropriate unicode support etc?)
Truthfully, my biggest interest is in seeing the default regex syntax
migrate to something much more modern, and that can be done
regardless of which engine we use.
Perry
--
Perry E. Metzger perry@piermont.com
next prev parent reply other threads:[~2018-06-19 16:27 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180616204650.8423.73499@vcs0.savannah.gnu.org>
[not found] ` <20180616204653.86AFC203CB@vcs0.savannah.gnu.org>
2018-06-17 18:42 ` [Emacs-diffs] master 938d252 4/4: Make regex matching reentrant; update syntax during match Stefan Monnier
2018-06-17 18:51 ` Daniel Colascione
2018-06-17 19:18 ` Daniel Colascione
2018-06-17 19:34 ` Stefan Monnier
2018-06-17 19:50 ` Daniel Colascione
2018-06-17 19:30 ` Stefan Monnier
2018-06-18 15:59 ` Perry E. Metzger
2018-06-18 17:49 ` Daniel Colascione
2018-06-19 13:40 ` Perry E. Metzger
2018-06-19 13:44 ` Perry E. Metzger
2018-06-19 13:49 ` Daniel Colascione
2018-06-19 14:30 ` Perry E. Metzger
2018-06-19 14:33 ` Perry E. Metzger
2018-06-19 14:48 ` Daniel Colascione
2018-06-19 15:37 ` Perry E. Metzger
2018-06-19 16:20 ` Paul Eggert
2018-06-19 16:27 ` Perry E. Metzger [this message]
2018-06-19 17:46 ` Stefan Monnier
2018-06-19 18:18 ` Daniel Colascione
2018-06-19 18:26 ` Perry E. Metzger
2018-06-19 16:54 ` John Wiegley
2018-06-19 17:04 ` Perry E. Metzger
2018-06-19 18:20 ` John Wiegley
2018-06-19 18:04 ` Paul Eggert
2018-06-19 18:16 ` Daniel Colascione
2018-06-19 18:26 ` Paul Eggert
2018-06-19 18:03 ` Andreas Schwab
2018-06-19 18:48 ` Paul Eggert
2018-06-19 14:46 ` Daniel Colascione
2018-06-19 14:58 ` Andreas Schwab
2018-06-19 15:32 ` Perry E. Metzger
2018-06-18 23:25 ` Richard Stallman
2018-06-19 1:30 ` Perry E. Metzger
2018-06-19 22:54 ` Richard Stallman
2018-06-20 1:17 ` Perry E. Metzger
2018-06-20 23:26 ` Richard Stallman
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