From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andrea Crotti Newsgroups: gmane.emacs.help Subject: Re: Simple useful function Date: Tue, 06 Jul 2010 13:49:09 +0200 Message-ID: References: <87vd8tk026.fsf@stats.ox.ac.uk> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1278417101 21807 80.91.229.12 (6 Jul 2010 11:51:41 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 6 Jul 2010 11:51:41 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Jul 06 13:51:40 2010 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 4.69) (envelope-from ) id 1OW6gb-0005E5-12 for geh-help-gnu-emacs@m.gmane.org; Tue, 06 Jul 2010 13:51:37 +0200 Original-Received: from localhost ([127.0.0.1]:56413 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OW6f1-00075a-8b for geh-help-gnu-emacs@m.gmane.org; Tue, 06 Jul 2010 07:49:59 -0400 Original-Received: from [140.186.70.92] (port=49310 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OW6eR-00074v-AR for help-gnu-emacs@gnu.org; Tue, 06 Jul 2010 07:49:24 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OW6eQ-0008Vu-8G for help-gnu-emacs@gnu.org; Tue, 06 Jul 2010 07:49:23 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:56162) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OW6eQ-0008Vl-3M for help-gnu-emacs@gnu.org; Tue, 06 Jul 2010 07:49:22 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OW6eN-00048T-Pb for help-gnu-emacs@gnu.org; Tue, 06 Jul 2010 13:49:19 +0200 Original-Received: from 91-250.eduroam.rwth-aachen.de ([134.61.91.250]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 06 Jul 2010 13:49:19 +0200 Original-Received: from andrea.crotti.0 by 91-250.eduroam.rwth-aachen.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 06 Jul 2010 13:49:19 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 20 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: 91-250.eduroam.rwth-aachen.de User-Agent: Gnus/5.110011 (No Gnus v0.11) Emacs/23.2 (darwin) Cancel-Lock: sha1:revuCyQHKCAtugmpA7KLSWYq0go= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) 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:74097 Archived-At: Lennart Borgman writes: > > No. The last statement run will be (message ...) and the doc string > for message says "Return the message". > > Just add nil if you want it to return nil: > > (defun ls-git-files () > (if > (file-exists-p ".git") > (split-string (shell-command-to-string "git ls-files")) > (message "not a git repo") > nil)) Ah good thanks, a non related question, why the last message written in *Messages* is not automatically saved somewhere? I mean, sometimes it's useful to get it, without going to the *Messages* buffer every time...