From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Pascal J. Bourguignon" Newsgroups: gmane.emacs.help Subject: Re: How can I change "buffer" to "string" Date: Wed, 05 Aug 2015 10:10:16 +0200 Organization: Informatimago Message-ID: <87wpxap34n.fsf@kuiper.lan.informatimago.com> References: <87a8u6qo14.fsf@kuiper.lan.informatimago.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1438762525 7066 80.91.229.3 (5 Aug 2015 08:15:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 5 Aug 2015 08:15:25 +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 Aug 05 10:15:18 2015 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 1ZMtr4-0006BC-4z for geh-help-gnu-emacs@m.gmane.org; Wed, 05 Aug 2015 10:15:18 +0200 Original-Received: from localhost ([::1]:39529 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZMtr3-00061q-1A for geh-help-gnu-emacs@m.gmane.org; Wed, 05 Aug 2015 04:15:17 -0400 X-Received: by 10.112.189.131 with SMTP id gi3mr2338570lbc.6.1438762217778; Wed, 05 Aug 2015 01:10:17 -0700 (PDT) Original-Path: usenet.stanford.edu!z1no3626205lbe.0!news-out.google.com!e9ni115077lbc.1!nntp.google.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 47 Original-X-Trace: individual.net GLgpyQ4wMDzFrPMFOX8apgP9lUJGNOwUAUslTG0UWopO1aRTDo Cancel-Lock: sha1:MmQ4YzlhOTY5ZDQ1YWQ3ODkzYjVhMjI3NWZhMGQ5NjhkYTNlNjU3OA== sha1:evdYNMy8pmnJjHlVC+pRbEbxeLM= Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Original-Xref: usenet.stanford.edu gnu.emacs.help:213961 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:106246 Archived-At: Navy Cheng writes: > Sorry for my ambiguous question. > > For example, I have a buffer *mybuf*. The buffer contain some lines. such as > > 1. ... > 2. /home/navy/test.c > 3. ... > > Now, I want to assignment the path in line 2 to a variable, *path*. And I > to (find-file path). So the inverse of what I proposed :-) You're still quite underspecifying. How do you select line 2? Why line 2 and not line 3? So since you don't say, I'll assume that you already have the point on the line you want. Use: (buffer-substring (progn (beginning-of-line) (point)) (progn (end-of-line) (point))) Don't be afraid by the syntax of the printed object, it IS a string. But since your line contains more than just the path, you will want to filter it out from the line. You could do that with a regular expression, matching the string with string-match, or directly the buffer with re-search-forward. For example: (progn (beginning-of-line) (when (re-search-forward "^[0-9]+\\. \\(.*\\)$" (point-max) t) (let ((path (match-string 1))) (find-file path)))) -- __Pascal Bourguignon__ http://www.informatimago.com/ “The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment.” -- Carl Bass CEO Autodesk