all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Tomohiro Matsuyama <tomo@cx4a.org>
To: "Colin Fraizer" <emacs-devel@cfraizer.com>
Cc: t.matsuyama.pub@gmail.com, emacs-devel@gnu.org
Subject: Re: Patch for lookaround assertion in regexp
Date: Wed, 26 Sep 2012 15:55:41 +0900	[thread overview]
Message-ID: <20120926155541.e52fb09f40eb0d836e07ec94@cx4a.org> (raw)
In-Reply-To: <009001ccd9c0$9bde09f0$d39a1dd0$@cfraizer.com>

Just reminder.

I'd like to see soon the regexp lookaround assertion feature in trunk.
As Stefan said, the feature could be a bottleneck of the regexp engine replacement.
So, when such the replacement would happen?  I'm feeling I have to wait more 10 years.

I'm also skeptical in technical that Tompson's NFA is really good for Emacs.
In my understand, Tompson's NFA is an algorithm that reduces backtracks with restricting dynamism, and may require cpu and memory overhead in many cases.
Is that really what we want for regexp engines to improve scalability?

    Tomohiro



  parent reply	other threads:[~2012-09-26  6:55 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-23 11:17 Patch for lookaround assertion in regexp Colin Fraizer
2012-01-23 14:11 ` Stefan Monnier
2012-01-23 14:44   ` Tom
2012-01-23 14:50     ` Andreas Schwab
2012-01-23 15:19       ` Tom
2012-01-23 16:14         ` Andreas Schwab
2012-01-23 17:11           ` Stefan Monnier
2012-01-23 18:45             ` Štěpán Němec
2012-01-30  0:31               ` Juri Linkov
2012-01-23 15:31     ` Stefan Monnier
2012-01-24  8:41   ` Nikolai Weibull
2012-01-24 14:40     ` Stefan Monnier
2012-01-24 15:09       ` Nikolai Weibull
2012-01-24 17:34         ` Stefan Monnier
2012-01-24 23:27     ` David De La Harpe Golden
2012-01-25  6:07       ` Nikolai Weibull
2012-02-14 17:53   ` Daniel Colascione
2012-02-14 18:36     ` Stefan Monnier
2012-02-20 16:19     ` Dimitri Fontaine
2012-09-26  6:55 ` Tomohiro Matsuyama [this message]
  -- strict thread matches above, loose matches on Subject: below --
2009-06-03 23:04 Tomohiro MATSUYAMA
2009-06-04  4:47 ` Miles Bader
2009-06-04  8:27   ` Deniz Dogan

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

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

  git send-email \
    --in-reply-to=20120926155541.e52fb09f40eb0d836e07ec94@cx4a.org \
    --to=tomo@cx4a.org \
    --cc=emacs-devel@cfraizer.com \
    --cc=emacs-devel@gnu.org \
    --cc=t.matsuyama.pub@gmail.com \
    /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 external index

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

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.