From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: weber Newsgroups: gmane.emacs.help Subject: Re: elisp, replace-regexp and re-search-forward Date: Mon, 01 Oct 2007 11:36:50 -0000 Organization: http://groups.google.com Message-ID: <1191238610.992573.294470@n39g2000hsh.googlegroups.com> References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Trace: sea.gmane.org 1191239089 11883 80.91.229.12 (1 Oct 2007 11:44:49 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 1 Oct 2007 11:44:49 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Oct 01 13:44:45 2007 Return-path: 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 1IcJhO-00027i-Ma for geh-help-gnu-emacs@m.gmane.org; Mon, 01 Oct 2007 13:44:30 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IcJhK-0001kG-6p for geh-help-gnu-emacs@m.gmane.org; Mon, 01 Oct 2007 07:44:26 -0400 Original-Path: shelby.stanford.edu!newsfeed.stanford.edu!postnews.google.com!n39g2000hsh.googlegroups.com!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 69 Original-NNTP-Posting-Host: 201.21.201.198 Original-X-Trace: posting.google.com 1191238611 17795 127.0.0.1 (1 Oct 2007 11:36:51 GMT) Original-X-Complaints-To: groups-abuse@google.com Original-NNTP-Posting-Date: Mon, 1 Oct 2007 11:36:51 +0000 (UTC) In-Reply-To: User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7,gzip(gfe),gzip(gfe) X-HTTP-Via: 1.1 fw.datacom-telematica.com.br:3128 (squid/2.5.STABLE6) Complaints-To: groups-abuse@google.com Injection-Info: n39g2000hsh.googlegroups.com; posting-host=201.21.201.198; posting-account=ps2QrAMAAAA6_jCuRt2JEIpn5Otqf_w0 Original-Xref: shelby.stanford.edu gnu.emacs.help:152509 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-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:48018 Archived-At: On Oct 1, 6:08 am, "Bourgneuf Francois" wrote: > You don't need to use a regexp. > (query-replace "\n" "\n\n") will do the job > Bour9 > > > -----Message d'origine----- > > De : > > help-gnu-emacs-bounces+francois.bourgneuf=3Dgroupe-mma...@gnu.or > > g > > [mailto:help-gnu-emacs-bounces+francois.bourgneuf=3Dgroupe-mma.f > > r...@gnu.org] De la part de Seweryn Kokot > > Envoy=E9 : lundi 1 octobre 2007 09:57 > > =C0 : help-gnu-em...@gnu.org > > Objet : elisp, replace-regexp and re-search-forward > > > Hello, > > > I try to write a function that operate on a region and which > > inserts a newline > > between each line, for example. > > from: > > aaa > > bbb > > ccc > > to: > > aaa > > > bbb > > > ccc > > ------- > > > My first attempt is the following function which does the job > > (defun my-test (beg end) > > (interactive "r") > > (replace-regexp "\n" "\n\n" nil beg end)) > > > however in Emacs help for replace-regexp I see that it is not > > good to use > > replace-regexp function. Instead it is recommended to use > > re-search-forward and > > replace-match. So I try with such a function, but it does not work. > > > (defun my-test-two (beg end) > > (interactive "r") > > (while (re-search-forward "\n" end t) > > (replace-match "\n\n" nil nil))) > > > Any idea what is wrong? > > > _______________________________________________ > > help-gnu-emacs mailing list > > help-gnu-em...@gnu.org > >http://lists.gnu.org/mailman/listinfo/help-gnu-emacs Another version imitates what you would do if you were going to do it manually (jump one line, press ret, jump one line..) : (defun insert-lines (beg end) (interactive "r") (goto-char beg) (while (< (point) end) (insert "\n") (next-line 1))) Regards, weber