From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Kevin Rodgers Newsgroups: gmane.emacs.help Subject: Re: How to check regexp for syntax-errors? (There HAS to be SOME way, yes?) Date: Tue, 20 Oct 2009 01:54:56 -0600 Message-ID: References: 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 1256025391 19938 80.91.229.12 (20 Oct 2009 07:56:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 20 Oct 2009 07:56:31 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Oct 20 09:56:22 2009 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1N09Zu-0007Hf-Dd for geh-help-gnu-emacs@m.gmane.org; Tue, 20 Oct 2009 09:56:22 +0200 Original-Received: from localhost ([127.0.0.1]:54213 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1N09Zt-000769-PP for geh-help-gnu-emacs@m.gmane.org; Tue, 20 Oct 2009 03:56:21 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1N09Z8-0006v8-B4 for help-gnu-emacs@gnu.org; Tue, 20 Oct 2009 03:55:34 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1N09Z4-0006uJ-06 for help-gnu-emacs@gnu.org; Tue, 20 Oct 2009 03:55:33 -0400 Original-Received: from [199.232.76.173] (port=50170 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1N09Z3-0006uG-RC for help-gnu-emacs@gnu.org; Tue, 20 Oct 2009 03:55:29 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:34201) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1N09Z3-0006X6-Ct for help-gnu-emacs@gnu.org; Tue, 20 Oct 2009 03:55:29 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.50) id 1N09Z0-0006qC-M5 for help-gnu-emacs@gnu.org; Tue, 20 Oct 2009 09:55:26 +0200 Original-Received: from c-71-237-24-138.hsd1.co.comcast.net ([71.237.24.138]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 20 Oct 2009 09:55:26 +0200 Original-Received: from kevin.d.rodgers by c-71-237-24-138.hsd1.co.comcast.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 20 Oct 2009 09:55:26 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 18 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: c-71-237-24-138.hsd1.co.comcast.net User-Agent: Thunderbird 2.0.0.23 (Macintosh/20090812) In-Reply-To: X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:69096 Archived-At: David Combs wrote: > Isn't there some .el that that will try to parse a regexp, and tell > me where it got confused, and what to look for for errors? (defun valid-regexp-p (regexp) (interactive "sRegexp: ") (with-temp-buffer (condition-case error-data (progn (re-search-forward regexp nil t) t) (invalid-regexp (when (interactive-p) (message "Invalid regexp: %s" (cdr error-data))) nil)))) -- Kevin Rodgers Denver, Colorado, USA