From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Cecil Westerhof Newsgroups: gmane.emacs.help Subject: Re: How to see that a variable holds t Date: Mon, 04 Jan 2010 10:29:23 +0100 Organization: Decebal Computing Message-ID: <87bphacj64.fsf@Traian.DecebalComp> References: <87fx6ncdvc.fsf@Traian.DecebalComp> <87wrzysjty.fsf@hubble.informatimago.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1262709932 22005 80.91.229.12 (5 Jan 2010 16:45:32 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 5 Jan 2010 16:45:32 +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 Jan 05 17:45:25 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 4.50) id 1NSCWo-0000wZ-Bs for geh-help-gnu-emacs@m.gmane.org; Tue, 05 Jan 2010 17:45:06 +0100 Original-Received: from localhost ([127.0.0.1]:39560 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NSCWo-0003G4-PT for geh-help-gnu-emacs@m.gmane.org; Tue, 05 Jan 2010 11:45:06 -0500 Original-Path: news.stanford.edu!usenet.stanford.edu!cgl.ucsf.edu!newsfeed.berkeley.edu!ucberkeley!feeder.news-service.com!feeder.news-service.com!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Original-Newsgroups: gnu.emacs.help X-Homepage: http://www.decebal.nl/ User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.3 (gnu/linux) Cancel-Lock: sha1:dQP0MYY9ed28Vp9MRlpsAtU4LE4= Original-Lines: 49 Original-NNTP-Posting-Host: 84.53.123.169 Original-X-Trace: 1262597364 news.xs4all.nl 22941 decebal/[::ffff:84.53.123.169]:12665 Original-X-Complaints-To: abuse@xs4all.nl Original-Xref: news.stanford.edu gnu.emacs.help:175979 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:71059 Archived-At: pjb@informatimago.com (Pascal J. Bourguignon) writes: >> What I really would like is; >> (defun switch-gnus-idle-daemon-do-log () >> (interactive) >> (setq gnus-idle-daemon-do-log >> (case gnus-idle-daemon-do-log >> (t 10) >> (otherwise t))) >> (message "gnus-idle-daemon-do-log: %s" gnus-idle-daemon-do-log)) >> >> Because I would like the default to be t and not 10. (For when the value >> is not one of the defined values.) But when I do this, it is always set >> to 10, because the case does not make a difference between t and 10. How >> do I solve this? > > The first clause is always selected because in emacs lisp, t and > otherwise are equivalent in case. > > I don't understand you people! How fucking difficult is it to type > C-h f case RET and READ the documentation? I had looked up case, but not in Emacs itself. In the definition I found it was not mentioned that t is the same as otherwise. > Write it as: > > (defun switch-gnus-idle-daemon-do-log () > (interactive) > (setq gnus-idle-daemon-do-log > (case gnus-idle-daemon-do-log > ((t) 10) > (otherwise t))) > (message "gnus-idle-daemon-do-log: %s" gnus-idle-daemon-do-log)) > > (switch-gnus-idle-daemon-do-log) > "gnus-idle-daemon-do-log: t" > (switch-gnus-idle-daemon-do-log) > "gnus-idle-daemon-do-log: 10" > (switch-gnus-idle-daemon-do-log) > "gnus-idle-daemon-do-log: t" Works like a charm. Thanks. -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof