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: What is the difference between looking-at and an anchored search? Date: Thu, 17 Jul 2008 13:14:13 +0200 Message-ID: <487F2985.9080103@gmail.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1216293276 22780 80.91.229.12 (17 Jul 2008 11:14:36 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 17 Jul 2008 11:14:36 +0000 (UTC) To: Emacs Devel Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Jul 17 13:15:24 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 1KJRSG-0002Sz-9h for ged-emacs-devel@m.gmane.org; Thu, 17 Jul 2008 13:15:24 +0200 Original-Received: from localhost ([127.0.0.1]:54011 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KJRRN-0003f3-Dh for ged-emacs-devel@m.gmane.org; Thu, 17 Jul 2008 07:14:29 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KJRRE-0003c1-2G for emacs-devel@gnu.org; Thu, 17 Jul 2008 07:14:20 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KJRRC-0003ak-Te for emacs-devel@gnu.org; Thu, 17 Jul 2008 07:14:19 -0400 Original-Received: from [199.232.76.173] (port=56809 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KJRRC-0003aO-Ki for emacs-devel@gnu.org; Thu, 17 Jul 2008 07:14:18 -0400 Original-Received: from ch-smtp02.sth.basefarm.net ([80.76.149.213]:44361) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1KJRRC-0001Uu-CO for emacs-devel@gnu.org; Thu, 17 Jul 2008 07:14:18 -0400 Original-Received: from c83-254-145-59.bredband.comhem.se ([83.254.145.59]:61669 helo=[127.0.0.1]) by ch-smtp02.sth.basefarm.net with esmtp (Exim 4.68) (envelope-from ) id 1KJRRA-0006mX-8J for emacs-devel@gnu.org; Thu, 17 Jul 2008 13:14:16 +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 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 1KJRRA-0006mX-8J. X-Scan-Signature: ch-smtp02.sth.basefarm.net 1KJRRA-0006mX-8J e1c4cbbde63869fb26b577dce332a279 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:100878 Archived-At: looking-at does not have a BOUND parameter, but re-search-forward have. This makes re-search-forward a bit more flexible. I am looking at some code where I would have use for that flexibility, but I wonder if there is any drawback with replacing looking-at with re-search-forward (with an achored pattern). Is there any? Performance?