From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: How to change and save a read-only file? Date: Fri, 19 Jul 2013 14:36:04 +0200 Organization: Aioe.org NNTP Server Message-ID: <87ehaupw0b.fsf@VLAN-3434.student.uu.se> References: <87ip0xnjtx.fsf@VLAN-3434.student.uu.se> <87d2r5nixr.fsf@VLAN-3434.student.uu.se> <87vc4tvocn.fsf@VLAN-3434.student.uu.se> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1374237624 1364 80.91.229.3 (19 Jul 2013 12:40:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 19 Jul 2013 12:40:24 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jul 19 14:40:25 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 1V09yt-0002yx-7Z for geh-help-gnu-emacs@m.gmane.org; Fri, 19 Jul 2013 14:40:19 +0200 Original-Received: from localhost ([::1]:37942 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V09ys-0005qs-Np for geh-help-gnu-emacs@m.gmane.org; Fri, 19 Jul 2013 08:40:18 -0400 Original-Path: usenet.stanford.edu!news.kjsl.com!feeder.erje.net!eu.feeder.erje.net!news.mixmin.net!aioe.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 34 Original-NNTP-Posting-Host: SWN/nubmpQxYKwY7hPy4YA.user.speranza.aioe.org Original-X-Complaints-To: abuse@aioe.org User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux) X-Notice: Filtered by postfilter v. 0.8.2 Cancel-Lock: sha1:/vuTQARaoYAgv3rExI8f238kTLw= Original-Xref: usenet.stanford.edu gnu.emacs.help:199983 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:92249 Archived-At: Emanuel Berg writes: > That looks pretty standard to me. But more important, it works > great! I tried to improve the function even more, because I noticed, when there was a region in the original buffer, and I wanted to do something on that region, when I stroke the `su-edit', the region disapeared. So, I made changes to the function (code last). It works, but with one detail missing: I get the region as desired in the new buffer, but for some reason, *the region doesn't show*. The highlight isn't there. But if I strike `write-region' or whatever, I can confirm that the region is there as it should. Any ideas? I tried both with set-mark, and set-mark-command, with the same result. (defun su-edit () "Edit the current buffer file as superuser." (interactive) (let((window-start (window-start)) (point (point)) (pres-reg-beg (if (use-region-p) (region-beginning) nil))) (find-alternate-file (format "/sudo::%s" (buffer-file-name))) (message (format "The variable is %d." pres-reg-beg)) (if pres-reg-beg (set-mark pres-reg-beg)) ; same: set-mark-command (goto-char point) (set-window-start nil window-start) )) ; nil - the selected window -- Emanuel Berg - programmer (hire me! CV below) computer projects: http://user.it.uu.se/~embe8573 internet activity: http://home.student.uu.se/embe8573