From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: Adding String to Beginning of Lines Date: Wed, 11 Nov 2020 13:25:07 -0500 Message-ID: References: <20201110111024.GA15992@tuxteam.de> <87zh3pctr1.fsf@web.de> <87o8k5csqj.fsf@web.de> <20201110224507.GA10842@tuxteam.de> <87v9ecdty8.fsf@web.de> <87k0urbw55.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31061"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:7PcutKwBVYlb0GzUF16LxkJvs/8= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Nov 11 19:25:46 2020 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kcuoU-0007xt-Ci for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 11 Nov 2020 19:25:46 +0100 Original-Received: from localhost ([::1]:52526 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kcuoT-0004sf-FX for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 11 Nov 2020 13:25:45 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42008) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kcuo1-0004sJ-4i for help-gnu-emacs@gnu.org; Wed, 11 Nov 2020 13:25:17 -0500 Original-Received: from static.214.254.202.116.clients.your-server.de ([116.202.254.214]:51750 helo=ciao.gmane.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kcunz-00035A-Eb for help-gnu-emacs@gnu.org; Wed, 11 Nov 2020 13:25:16 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kcunv-0007KY-V0 for help-gnu-emacs@gnu.org; Wed, 11 Nov 2020 19:25:11 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/11 05:55:22 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:125241 Archived-At: > Oh, of course, while inserting the stuff your specified end position > gets outdated. You can use a marker instead of a number: > > (copy-marker (region-end)) > > it will automatically be adjusted. The other classic solution is to do if starting from the end since the region-start won't be affected by the buffer modifications. Stefan