From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: font-lock-keywords: matcher function not working Date: Fri, 28 Jun 2013 22:35:32 -0400 Message-ID: References: <8d3f8211-d708-4e79-aab4-6cc8141c6c92@googlegroups.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1372473364 704 80.91.229.3 (29 Jun 2013 02:36:04 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 29 Jun 2013 02:36:04 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sat Jun 29 04:36:05 2013 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Usl12-0001sY-CT for geh-help-gnu-emacs@m.gmane.org; Sat, 29 Jun 2013 04:35:56 +0200 Original-Received: from localhost ([::1]:41310 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Usl11-0006mm-UH for geh-help-gnu-emacs@m.gmane.org; Fri, 28 Jun 2013 22:35:55 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35388) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Usl0r-0006me-Q4 for help-gnu-emacs@gnu.org; Fri, 28 Jun 2013 22:35:46 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Usl0q-0003FE-UC for help-gnu-emacs@gnu.org; Fri, 28 Jun 2013 22:35:45 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:57994) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Usl0q-0003FA-NF for help-gnu-emacs@gnu.org; Fri, 28 Jun 2013 22:35:44 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Usl0p-0001eq-2n for help-gnu-emacs@gnu.org; Sat, 29 Jun 2013 04:35:43 +0200 Original-Received: from 76-10-154-64.dsl.teksavvy.com ([76.10.154.64]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 29 Jun 2013 04:35:43 +0200 Original-Received: from monnier by 76-10-154-64.dsl.teksavvy.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 29 Jun 2013 04:35:43 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 16 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 76-10-154-64.dsl.teksavvy.com User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) Cancel-Lock: sha1:WhfvMJPwGpCL7Xlqqzf/a1ThnpY= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 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 Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:91839 Archived-At: > Thank you again, Stefan. However, I still don't understand. Your function should search for the first occurrence of the thing you're looking for, between here and ^end and only if there isn't any should it return nil. Instead, your current function only checks whether "here" is a spot that matches the thing you're looking for. Instead, when you find out that "here" is not a match, don't return nil: try to look further instead. This is typically done with a loop. In your case, I wouldn't use a function anyway: I'd just use a regexp like "^[^ \t]*(". Stefan