From: "Perry E. Metzger" <perry@piermont.com>
To: Andreas Schwab <schwab@suse.de>
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 11:32:43 -0400 [thread overview]
Message-ID: <20180619113243.69f0bdcc@jabberwock.cb.piermont.com> (raw)
In-Reply-To: <mvmsh5i962g.fsf@suse.de>
On Tue, 19 Jun 2018 16:58:15 +0200 Andreas Schwab <schwab@suse.de>
wrote:
> On Jun 19 2018, Daniel Colascione <dancol@dancol.org> wrote:
>
> > IMHO, back reference support is an old unix mistake. I can't
> > think of a time when I've wanted to actually use them, but their
> > theoretical use is still a hindrance. One option would be to just
> > deprecate them.
>
> There are quite a few uses in Emacs.
I agree that they're a mistake, but we're a bit stuck. The right
thing, I think, is using a library like TRE that uses a fast
algorithm whenever a backreference isn't in use.
Perry
--
Perry E. Metzger perry@piermont.com
next prev parent reply other threads:[~2018-06-19 15:32 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
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 [this message]
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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