unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Stefan Kangas <stefankangas@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>, emacs-devel@gnu.org
Subject: Re: Ugly regexps
Date: Tue, 2 Mar 2021 20:08:53 -0600	[thread overview]
Message-ID: <CADwFkmnAa6rgwi-y=0b-BSQ4hqPt4cd8ED_Ks+Ek8aFxM3UqdA@mail.gmail.com> (raw)
In-Reply-To: <CADwFkm=8qfh1RQkK6qbvEt=-Ch_vXKCe5NvJ_L_OVXsnf=DpZg@mail.gmail.com>

Stefan Kangas <stefankangas@gmail.com> writes:

> While we're at it, has it ever been discussed to add support for the
> pcre library side-by-side with our homegrown regexp.c?  It would give us
> sane (standard) syntax and some useful features "for free"
> (e.g. lookaround).  I didn't test but a priori I would also assume the
> code to be much more performant than anything we could ever cook up
> ourselves.  It is used by several high-profile projects.

Of course this had already been discussed.  I found this interesting
thread from 2012:

    https://lists.gnu.org/archive/html/emacs-devel/2012-01/msg00736.html

Long story short, it may be a non-trivial job.  In particular supporting
the \s and \c operators seems like a hard nut to crack.



  reply	other threads:[~2021-03-03  2:08 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-03  0:32 Ugly regexps Stefan Monnier
2021-03-03  1:32 ` Stefan Kangas
2021-03-03  2:08   ` Stefan Kangas [this message]
2021-03-03  6:19     ` Eli Zaretskii
2021-03-03 20:46   ` Alan Mackenzie
2021-03-04 18:35     ` Stefan Kangas
2021-03-03  6:00 ` Eli Zaretskii
2021-03-03 15:46   ` Stefan Monnier
2021-03-03 16:30     ` Eli Zaretskii
2021-03-03 17:44       ` Stefan Monnier
2021-03-03 18:46         ` Stefan Kangas
2021-03-03 19:21           ` Eli Zaretskii
2021-03-03 19:50             ` Stefan Kangas
2021-03-03 20:16               ` Stefan Kangas
2021-03-03 19:50             ` Stefan Kangas
2021-03-03 19:58             ` Dmitry Gutov
2021-03-03 20:07               ` [External] : " Drew Adams
2021-03-03 20:31                 ` Stefan Kangas
2021-03-03 22:17                   ` Drew Adams
2021-03-03 22:32                     ` Stefan Monnier
2021-03-03 20:32                 ` Stefan Monnier
2021-03-04  5:47               ` Eli Zaretskii
2021-03-04 10:49                 ` Lars Ingebrigtsen
2021-03-04 11:25                   ` Mattias Engdegård
2021-03-04 11:28                   ` Alan Mackenzie
2021-03-04 14:11                   ` Eli Zaretskii
2021-03-04 14:25                 ` Dmitry Gutov
2021-03-04 14:50                   ` tomas
2021-03-04 15:04                     ` Dmitry Gutov
2021-03-05  5:45                       ` Richard Stallman
2021-03-05 11:47                         ` Dmitry Gutov
2021-03-06  5:11                           ` Richard Stallman
2021-03-04 15:05                     ` Dmitry Gutov
2021-03-04 15:11                   ` Eli Zaretskii
2021-03-03 19:32           ` [External] : " Drew Adams
2021-03-03  7:09 ` Helmut Eller
2021-03-03 14:11   ` Stefan Kangas
2021-03-03 16:40     ` Stefan Monnier
2021-03-03 15:49   ` Stefan Monnier
2021-03-03 12:17 ` Dmitry Gutov
2021-03-03 15:48   ` Stefan Monnier
2021-03-03 13:57 ` Lars Ingebrigtsen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CADwFkmnAa6rgwi-y=0b-BSQ4hqPt4cd8ED_Ks+Ek8aFxM3UqdA@mail.gmail.com' \
    --to=stefankangas@gmail.com \
    --cc=emacs-devel@gnu.org \
    --cc=monnier@iro.umontreal.ca \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).