From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.org!not-for-mail
From: Alan Mackenzie <acm@muc.de>
Newsgroups: gmane.emacs.help
Subject: Re: Regexp issue
Date: Sat, 20 Jun 2009 10:17:38 +0000 (UTC)
Organization: muc.de e.V.
Message-ID: <h1id02$mhe$1@colin2.muc.de>
References: <1245487152.15610.0.camel@drserver>
	<mailman.985.1245488055.2239.help-gnu-emacs@gnu.org>
NNTP-Posting-Host: lo.gmane.org
X-Trace: ger.gmane.org 1245494518 5846 80.91.229.12 (20 Jun 2009 10:41:58 GMT)
X-Complaints-To: usenet@ger.gmane.org
NNTP-Posting-Date: Sat, 20 Jun 2009 10:41:58 +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 20 12:41:56 2009
Return-path: <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org>
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 1MHy1E-0004nd-9w
	for geh-help-gnu-emacs@m.gmane.org; Sat, 20 Jun 2009 12:41:56 +0200
Original-Received: from localhost ([127.0.0.1]:47800 helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43)
	id 1MHy1D-0001yA-FQ
	for geh-help-gnu-emacs@m.gmane.org; Sat, 20 Jun 2009 06:41:55 -0400
Original-Path: news.stanford.edu!headwall.stanford.edu!newsfeed.news2me.com!newsfeed2.telusplanet.net!newsfeed.telus.net!feeder.erje.net!newsfeed0.kamp.net!newsfeed.kamp.net!newsfeed.freenet.de!news.tu-darmstadt.de!news.muc.de!not-for-mail
Original-Newsgroups: gnu.emacs.help
Original-Lines: 28
Original-NNTP-Posting-Host: marvin.muc.de
Original-X-Trace: colin2.muc.de 1245493058 23086 2001:608:1000::2 (20 Jun 2009 10:17:38
	GMT)
Original-X-Complaints-To: news-admin@muc.de
Original-NNTP-Posting-Date: Sat, 20 Jun 2009 10:17:38 +0000 (UTC)
User-Agent: tin/1.6.2-20030910 ("Pabbay") (UNIX) (FreeBSD/4.11-RELEASE (i386))
Original-Xref: news.stanford.edu gnu.emacs.help:170180
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 <help-gnu-emacs.gnu.org>
List-Unsubscribe: <http://lists.gnu.org/mailman/listinfo/help-gnu-emacs>,
	<mailto:help-gnu-emacs-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/help-gnu-emacs>
List-Post: <mailto:help-gnu-emacs@gnu.org>
List-Help: <mailto:help-gnu-emacs-request@gnu.org?subject=help>
List-Subscribe: <http://lists.gnu.org/mailman/listinfo/help-gnu-emacs>,
	<mailto:help-gnu-emacs-request@gnu.org?subject=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:65400
Archived-At: <http://permalink.gmane.org/gmane.emacs.help/65400>

Peter Dyballa <Peter_Dyballa@web.de> wrote:

> Am 20.06.2009 um 10:39 schrieb Paulo J. Matos:

>> How can I match the string => but not part of <=>?

>        [^<]=>

> [everything but "<"]<followed by exactly "=>">

Or, more precisely,

        \(^\|[^<]\)=>

, i.e. [nothing at all] or [something which isn't "<"] following by =>.
If you're using this in a string in a lisp program, you'll have to double
up the backquotes, something like

       (search-forward-regexp "\\(^\\|[^<]\\)=>")

> --
> Greetings

>   Pete

-- 
Alan Mackenzie (Nuernberg).