From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Barry Margolin Newsgroups: gmane.emacs.help Subject: Re: add-hook Date: Sat, 26 Jan 2013 00:33:55 -0500 Organization: A noiseless patient Spider Message-ID: References: <902E1C3E-E017-4109-9904-803220E5EE58@gmail.com> NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1359178511 4891 80.91.229.3 (26 Jan 2013 05:35:11 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 26 Jan 2013 05:35:11 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sat Jan 26 06:35:31 2013 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 1TyyQM-0005L7-I6 for geh-help-gnu-emacs@m.gmane.org; Sat, 26 Jan 2013 06:35:30 +0100 Original-Received: from localhost ([::1]:48683 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TyyQ4-00069d-R4 for geh-help-gnu-emacs@m.gmane.org; Sat, 26 Jan 2013 00:35:12 -0500 Original-Path: usenet.stanford.edu!news.kjsl.com!us.feeder.erje.net!feeder.erje.net!eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!mx04.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 19 Injection-Info: barmar.motzarella.org; posting-host="2be9e9f5dd9af768b8861af71b85fc28"; logging-data="3029"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18LkODEXQXZkjN1goP9aTum" User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) Cancel-Lock: sha1:T+e/nHhksc5p3VCdHfDU+lLULMw= Original-Xref: usenet.stanford.edu gnu.emacs.help:196529 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:88823 Archived-At: In article , Dmitry Gutov wrote: > "Drew Adams" writes: > > If HOOK is void then it is initialized to nil. > > > > (add-hook 'ruby-mode-hook (lambda () (ruby-electric-mode t))) > > Or, even shorter: > > (add-hook 'ruby-mode-hook 'ruby-electric-mode) Not the same. With no argument it toggles, with an argument it turns the mode on or off as specified by the argument. -- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me ***