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: Conditional evaluation? Date: Mon, 27 Jul 2009 10:33:33 +0200 Organization: Informatimago Message-ID: <87fxcih6ea.fsf@galatea.local> References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1248684271 1683 80.91.229.12 (27 Jul 2009 08:44:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 27 Jul 2009 08:44:31 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Jul 27 10:44:25 2009 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 1MVLom-0003SO-Mf for geh-help-gnu-emacs@m.gmane.org; Mon, 27 Jul 2009 10:44:25 +0200 Original-Received: from localhost ([127.0.0.1]:42717 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MVLom-0001AP-7V for geh-help-gnu-emacs@m.gmane.org; Mon, 27 Jul 2009 04:44:24 -0400 Original-Path: news.stanford.edu!newsfeed.stanford.edu!news.tele.dk!news.tele.dk!small.news.tele.dk!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 21 Original-X-Trace: individual.net XMlvsq7mh3qEHRAYWu43tAWYO99Z1ynaj52S6jeXNw9RqOwDxc Cancel-Lock: sha1:ZThkMWJkNWU3YjMyMmYxMTYwNDM4Y2E5ZTUxNTk0ZWNiMWU2MDZlNQ== sha1:qkgD1IiVJc4Z9qMRofR/3UaCGok= 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/5.1008 (Gnus v5.10.8) Emacs/22.3 (darwin) Original-Xref: news.stanford.edu gnu.emacs.help:171237 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:66423 Archived-At: Elena writes: > whenever I'm testing a new chunk of Emacs Lisp, I'd like to > conditionally include/exclude it without resorting to "comment- > region". Is using "when" correct? > > (when nil ;; use t to enable evaluation > (require 'some-package) > ;; etc. > ) Yes, it works well. > Or do I need an alternative form to make code evaluate at top level? There's no #+, #-, #| reader syntax in emacs lisp, and no way to add one (easily). -- __Pascal Bourguignon__