From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: delete text block with regexp Date: Mon, 17 Nov 2003 15:23:52 GMT Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Message-ID: References: <873ccogor2.fsf@emacswiki.org> <877k1zj0mp.fsf@bird.agharta.de> <87isljnv5b.fsf@bird.agharta.de> NNTP-Posting-Host: deer.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1069083269 9704 80.91.224.253 (17 Nov 2003 15:34:29 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 17 Nov 2003 15:34:29 +0000 (UTC) Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Nov 17 16:34:27 2003 Return-path: Original-Received: from monty-python.gnu.org ([199.232.76.173]) by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 1ALlOV-0006rR-00 for ; Mon, 17 Nov 2003 16:34:27 +0100 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.24) id 1ALmHO-0002XG-AT for geh-help-gnu-emacs@m.gmane.org; Mon, 17 Nov 2003 11:31:10 -0500 Original-Path: shelby.stanford.edu!newsfeed.stanford.edu!logbridge.uoregon.edu!snoopy.risq.qc.ca!charlie.risq.qc.ca!53ab2750!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 12 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50 Original-NNTP-Posting-Host: 132.204.24.42 Original-X-Complaints-To: abuse@umontreal.ca Original-X-Trace: charlie.risq.qc.ca 1069082632 132.204.24.42 (Mon, 17 Nov 2003 10:23:52 EST) Original-NNTP-Posting-Date: Mon, 17 Nov 2003 10:23:52 EST Original-Xref: shelby.stanford.edu gnu.emacs.help:118373 Original-To: help-gnu-emacs@gnu.org X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.2 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: main.gmane.org gmane.emacs.help:14314 X-Report-Spam: http://spam.gmane.org/gmane.emacs.help:14314 >>> Shouldn't a good regex implementation be able to optimize the >>> problem away in simple cases like this? >> Of course. Patch (or package) welcome, > Er, but isn't Emacs' regex engine written in C? Yuk! I prefer writing > my software in Lisp... :) But you can write the optimization in elisp, as is done in regexp-opt. It won't be automatically used for all regexps, but it might be a good thing if your optimization takes time. Stefan