From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: D. Goel Newsgroups: gmane.emacs.help Subject: Re: emacs regexp question Date: 04 Jun 2003 13:19:57 -0400 Organization: Posted via Supernews, http://www.supernews.com Sender: help-gnu-emacs-bounces+gnu-help-gnu-emacs=m.gmane.org@gnu.org Message-ID: <87llwhyd36.fsf@gnufans.net> References: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: main.gmane.org 1054747576 1656 80.91.224.249 (4 Jun 2003 17:26:16 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Wed, 4 Jun 2003 17:26:16 +0000 (UTC) Original-X-From: help-gnu-emacs-bounces+gnu-help-gnu-emacs=m.gmane.org@gnu.org Wed Jun 04 19:26:15 2003 Return-path: Original-Received: from monty-python.gnu.org ([199.232.76.173]) by main.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 19Nc0X-0000K1-00 for ; Wed, 04 Jun 2003 19:25:05 +0200 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.20) id 19Nc10-0004uE-Iq for gnu-help-gnu-emacs@m.gmane.org; Wed, 04 Jun 2003 13:25:34 -0400 Original-Path: shelby.stanford.edu!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!sn-xit-03!sn-xit-01!sn-post-01!supernews.com!corp.supernews.com!not-for-mail Original-Newsgroups: gnu.emacs.help X-Face: #5@=vrmx5t3mZaPY8(mR.n+V#:%4NW7j5A&^}@lGp2rK; CQ4%iH1v'gh/^A)w5*6c&R2(P' 4+seYDq8OK'LPI/C(C^A*w|f*t+8,'T8b#_0~h3!A7GoVroE[cr0Fb'A0%SdU|Lk@gBV&1vA User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 Original-X-Complaints-To: abuse@supernews.com Original-Lines: 38 Original-Xref: shelby.stanford.edu gnu.emacs.help:114116 Original-To: help-gnu-emacs@gnu.org X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1b5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Help: List-Post: List-Subscribe: , List-Archive: List-Unsubscribe: , Errors-To: help-gnu-emacs-bounces+gnu-help-gnu-emacs=m.gmane.org@gnu.org Xref: main.gmane.org gmane.emacs.help:10610 X-Report-Spam: http://spam.gmane.org/gmane.emacs.help:10610 untested answers below, i hope they are not all wrong :-) > Hello: > > There are some regexps I don't know how to specify in gnu emacs: > > - How should I ask for the first occurrence of two blank lines? "\n\n" or C-q C-j C-q C-j if invoking M-x re-search-forward interactively. -- that command is boundto C-M-s in some modes. > > - How should I ask for the first occurrence of N blank lines for some fixed, > yet large, N. "\n\n\n\n..." I don't think there's another way to do it using emacs' regexps. perhaps regexp is not the right approach if N is very large, and some simple elisp is in order. > I think emacs uses ^ for the start of the line, though I've seen > some regexp libraries (not for emacs) that use the ^ as a sort of > "exponentiation" symbol for the number of times a string is > concatenated. > > - How can I search for regexps that have one or more newlines in the middle? something like ".*\n.*" DG http://gnufans.net/ --