From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Lennart Borgman (gmail)" Newsgroups: gmane.emacs.devel Subject: Re: What is the difference between looking-at and an anchored search? Date: Thu, 17 Jul 2008 19:45:05 +0200 Message-ID: <487F8521.6090801@gmail.com> References: <487F2985.9080103@gmail.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1216316733 15354 80.91.229.12 (17 Jul 2008 17:45:33 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 17 Jul 2008 17:45:33 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Jul 17 19:46:20 2008 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1KJXYU-0000af-0P for ged-emacs-devel@m.gmane.org; Thu, 17 Jul 2008 19:46:14 +0200 Original-Received: from localhost ([127.0.0.1]:35906 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KJXXb-0001Md-IU for ged-emacs-devel@m.gmane.org; Thu, 17 Jul 2008 13:45:19 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KJXXX-0001MQ-AU for emacs-devel@gnu.org; Thu, 17 Jul 2008 13:45:15 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KJXXV-0001LZ-QO for emacs-devel@gnu.org; Thu, 17 Jul 2008 13:45:14 -0400 Original-Received: from [199.232.76.173] (port=37842 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KJXXV-0001LP-MD for emacs-devel@gnu.org; Thu, 17 Jul 2008 13:45:13 -0400 Original-Received: from ch-smtp01.sth.basefarm.net ([80.76.149.212]:51256) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1KJXXU-0006nP-BT for emacs-devel@gnu.org; Thu, 17 Jul 2008 13:45:13 -0400 Original-Received: from c83-254-145-59.bredband.comhem.se ([83.254.145.59]:62453 helo=[127.0.0.1]) by ch-smtp01.sth.basefarm.net with esmtp (Exim 4.68) (envelope-from ) id 1KJXXS-0007v7-5g for emacs-devel@gnu.org; Thu, 17 Jul 2008 19:45:11 +0200 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9) Gecko/20071031 Thunderbird/2.0.0.9 Mnenhy/0.7.5.666 In-Reply-To: X-Antivirus: avast! (VPS 080712-0, 2008-07-12), Outbound message X-Antivirus-Status: Clean X-Originating-IP: 83.254.145.59 X-Scan-Result: No virus found in message 1KJXXS-0007v7-5g. X-Scan-Signature: ch-smtp01.sth.basefarm.net 1KJXXS-0007v7-5g 57df71d9947397bbfdc0e694c077ae97 X-detected-kernel: by monty-python.gnu.org: Linux 2.6? (barebone, rare!) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:100893 Archived-At: Johan Bockgård wrote: > "Lennart Borgman" writes: > >>> If you want to reject matches that extend past some point, just do >>> something like: >>> >>> (and (looking-at REGEXP) (<= (match-end 0) BOUND)) >> >> Thanks Miles, >> >> Yes, that is one possibility. But then perhaps I would assume that >> re-search-forward better might optimize that search since it can (in >> theory) cut off the searching at BOUND. In the case I am looking at >> performance is important. > > You can try narrowing the buffer. Ah, thanks that is a good suggestion. Eh, at least to my question, but I am beginning to realize that I have asked the wrong question. I wanted to modify the xmltok.el library that comes with nxml so that it could be used with mumamo in a better way than now. I want to jump over regions that are not parseable by nxml-mode. (I thought I had already done that, but forgot about xmltok.el.) I will ask some questions about that in a separate thread.