From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Barry Margolin <barmar@alum.mit.edu> Newsgroups: gmane.emacs.help Subject: Re: Using backward-char non-interactively Date: Tue, 31 Dec 2013 09:56:15 -0500 Organization: A noiseless patient Spider Message-ID: <barmar-551F13.09561531122013@news.eternal-september.org> References: <mailman.10751.1388498331.10748.help-gnu-emacs@gnu.org> NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1388502020 6695 80.91.229.3 (31 Dec 2013 15:00:20 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 31 Dec 2013 15:00:20 +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 Dec 31 16:00:25 2013 Return-path: <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org> 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 <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org>) id 1Vy0nx-0006Qp-AC for geh-help-gnu-emacs@m.gmane.org; Tue, 31 Dec 2013 16:00:25 +0100 Original-Received: from localhost ([::1]:34048 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org>) id 1Vy0nw-0002Iz-V4 for geh-help-gnu-emacs@m.gmane.org; Tue, 31 Dec 2013 10:00:24 -0500 Original-Path: usenet.stanford.edu!news.kjsl.com!feeder.erje.net!eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!barmar.motzarella.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 19 Injection-Info: barmar.motzarella.org; posting-host="2be9e9f5dd9af768b8861af71b85fc28"; logging-data="10707"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18Jp0s+4OXsgAhG5IxWRRIC" User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) Cancel-Lock: sha1:V1DkgJXlq7wH31XdS7dolQZUX30= Original-Xref: usenet.stanford.edu gnu.emacs.help:202945 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 <help-gnu-emacs.gnu.org> List-Unsubscribe: <https://lists.gnu.org/mailman/options/help-gnu-emacs>, <mailto:help-gnu-emacs-request@gnu.org?subject=unsubscribe> List-Archive: <http://lists.gnu.org/archive/html/help-gnu-emacs> List-Post: <mailto:help-gnu-emacs@gnu.org> List-Help: <mailto:help-gnu-emacs-request@gnu.org?subject=help> List-Subscribe: <https://lists.gnu.org/mailman/listinfo/help-gnu-emacs>, <mailto:help-gnu-emacs-request@gnu.org?subject=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:95214 Archived-At: <http://permalink.gmane.org/gmane.emacs.help/95214> In article <mailman.10751.1388498331.10748.help-gnu-emacs@gnu.org>, Marcin Borkowski <mbork@wmi.amu.edu.pl> wrote: > Hi, > > is it ok to use backward-char in elisp programs assuming that I did > check that I'm not at beginning of buffer? Or is it better to use > (goto-char (1- point)) or something like that? Or maybe it doesn't > matter? ("Better" may be in terms of style, speed, or side effects, > like cluttering the *Messages* buffer.) Most command functions are OK to use in programs. The handful that shouldn't say something in their documentation string, usually with a pointer to an alternative function that's better. -- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me ***