From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: pjb@informatimago.com (Pascal J. Bourguignon) Newsgroups: gmane.emacs.help Subject: Re: How to see that a variable holds t Date: Wed, 06 Jan 2010 19:51:40 +0100 Organization: Informatimago Message-ID: <87vdffrrr7.fsf@hubble.informatimago.com> References: <87fx6ncdvc.fsf@Traian.DecebalComp> <87wrzysjty.fsf@hubble.informatimago.com> <878wcbicpc.fsf@Traian.DecebalComp> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1262806854 18329 80.91.229.12 (6 Jan 2010 19:40:54 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 6 Jan 2010 19:40:54 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Jan 06 20:40:46 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 1NSbkL-0001yq-Ce for geh-help-gnu-emacs@m.gmane.org; Wed, 06 Jan 2010 20:40:45 +0100 Original-Received: from localhost ([127.0.0.1]:43995 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NSbkL-0006SF-Kn for geh-help-gnu-emacs@m.gmane.org; Wed, 06 Jan 2010 14:40:45 -0500 Original-Path: news.stanford.edu!usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 30 Original-X-Trace: individual.net WZmTmMgmpD2FXkIn+SPyaQQRdGiD4MMM4E66b1ATv0+AGCerCT Cancel-Lock: sha1:MWEzMmQyM2E3MDJmZWZhYzA3ZWNhNjU0MDZlN2QyNzMxYTI1ZGRiMg== sha1:CDL0EZ6b2m6mMmOMddZAhnb/5uI= Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en X-Disabled: X-No-Archive: no User-Agent: Gnus/5.101 (Gnus v5.10.10) Emacs/22.3 (gnu/linux) Original-Xref: news.stanford.edu gnu.emacs.help:176000 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:71087 Archived-At: Cecil Westerhof writes: > pjb@informatimago.com (Pascal J. Bourguignon) writes: > >> (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)) > > As earlier said: it works, but I do not understand the difference > between: > ((t) 10) This is a clause that matches only t. > and: > (t 10) This is the default clause. It matches anything. (t) is a list of literal values specifying the case. t is a symbol that is interpreted as meaning 'anything'. -- __Pascal Bourguignon__ http://www.informatimago.com/