From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Marcin Borkowski Newsgroups: gmane.emacs.help Subject: Re: A variant of match-end, but after replacement? Date: Sun, 19 Jul 2015 21:58:32 +0200 Message-ID: <87a8urkjh3.fsf@mbork.pl> References: <87h9p04ain.fsf@kuiper.lan.informatimago.com> <87d1zo49e6.fsf@kuiper.lan.informatimago.com> <878uac463w.fsf@kuiper.lan.informatimago.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1437335940 22890 80.91.229.3 (19 Jul 2015 19:59:00 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 19 Jul 2015 19:59:00 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Jul 19 21:58:52 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 1ZGujb-0007bD-GV for geh-help-gnu-emacs@m.gmane.org; Sun, 19 Jul 2015 21:58:51 +0200 Original-Received: from localhost ([::1]:52581 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZGuja-000748-PC for geh-help-gnu-emacs@m.gmane.org; Sun, 19 Jul 2015 15:58:50 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:41055) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZGujR-000742-J8 for help-gnu-emacs@gnu.org; Sun, 19 Jul 2015 15:58:42 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZGujN-0005Zp-B2 for help-gnu-emacs@gnu.org; Sun, 19 Jul 2015 15:58:41 -0400 Original-Received: from mail.mojserwer.eu ([2a01:5e00:2:52::8]:36581) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZGujN-0005Zk-3x for help-gnu-emacs@gnu.org; Sun, 19 Jul 2015 15:58:37 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by mail.mojserwer.eu (Postfix) with ESMTP id 50E2551202B for ; Sun, 19 Jul 2015 21:58:36 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mail.mojserwer.eu Original-Received: from mail.mojserwer.eu ([127.0.0.1]) by localhost (mail.mojserwer.eu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qf0QqJw9JUTF for ; Sun, 19 Jul 2015 21:58:33 +0200 (CEST) Original-Received: from localhost (unknown [109.232.24.146]) by mail.mojserwer.eu (Postfix) with ESMTPSA id 828B0512018 for ; Sun, 19 Jul 2015 21:58:33 +0200 (CEST) In-reply-to: <878uac463w.fsf@kuiper.lan.informatimago.com> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2a01:5e00:2:52::8 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:105856 Archived-At: On 2015-07-19, at 15:41, Pascal J. Bourguignon wrote: > Marcin Borkowski writes: > >>> (let ((old-end (prog1 (match-end 1) >>> (replace-match "newtext" t t string 1)))) >>> (do-something old-end)) >> >> Still not there - I can't assume that "newtext" will have the same >> length as the thing it replaced... > > Sorry, I misread what you wanted. > > (let ((new-end (+ (prog1 (match-beginning 1) > (replace-match new-text t t string 1))) > (length new-text))) > (do-somthing-from new-end)) Thanks! That's easy, and indeed it will work, since the length of the replacement is fixed in my use-case. Best, -- Marcin Borkowski http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski Faculty of Mathematics and Computer Science Adam Mickiewicz University