From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: =?ISO-8859-1?Q?Nordl=F6w?= Newsgroups: gmane.emacs.help Subject: Re: Error-Free Navigation in Trees of Sub-Expressions (sexp) in Font-Locking Function Matchers Date: Wed, 8 Oct 2008 07:30:56 -0700 (PDT) Organization: http://groups.google.com Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1223477350 7834 80.91.229.12 (8 Oct 2008 14:49:10 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 8 Oct 2008 14:49:10 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Oct 08 16:50:03 2008 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 1KnaEu-0005oQ-3Q for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Oct 2008 16:42:12 +0200 Original-Received: from localhost ([127.0.0.1]:54700 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KnaDp-0001pL-UU for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Oct 2008 10:41:05 -0400 Original-Path: news.stanford.edu!newsfeed.stanford.edu!postnews.google.com!g17g2000prg.googlegroups.com!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 28 Original-NNTP-Posting-Host: 150.227.15.253 Original-X-Trace: posting.google.com 1223476262 19169 127.0.0.1 (8 Oct 2008 14:31:02 GMT) Original-X-Complaints-To: groups-abuse@google.com Original-NNTP-Posting-Date: Wed, 8 Oct 2008 14:31:02 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: g17g2000prg.googlegroups.com; posting-host=150.227.15.253; posting-account=ytJKAgoAAAA1tg4ScoRszebXiIldA5vg User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux i686; sv-SE; rv:1.9.0.3) Gecko/2008092510 Ubuntu/8.04 (hardy) Firefox/3.0.3, gzip(gfe), gzip(gfe) X-HTTP-Via: 1.1 ip-w.foi.se:8080 (IronPort-WSA/5.6.0-618) Original-Xref: news.stanford.edu gnu.emacs.help:163198 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:58540 Archived-At: On 8 Okt, 16:15, Nikolaj Schumacher wrote: > Nordl=F6w wrote: > > What is the most clever way of checking when we are at the last sexp > > (forward-sexp will fail as mentioned above)? > > You could use either: > > (condition-case err > =A0 =A0(while t > =A0 =A0 =A0(forward-sexp) > =A0 =A0 =A0...) > =A0(scan-error . nil)) > > to break the loop on an error, or: > > (while (ignore-errors (forward-sexp) t) > =A0 ...) > > to get a nil when forward-sexp fails. > > regards, > Nikolaj Schumacher Superb! One can do everything in elisp, if you only know how ;) /Nordl=F6w