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: Is it possible for a macro to expand to nothing? Date: Tue, 24 Nov 2009 12:56:12 +0100 Organization: Informatimago Message-ID: <87hbskb0gz.fsf@galatea.local> References: <87vdh1ccra.fsf@galatea.local> <87my2dc8d7.fsf@galatea.local> <873a44dcf2.fsf@galatea.local> <87pr78b6n9.fsf@galatea.local> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1259066459 29800 80.91.229.12 (24 Nov 2009 12:40:59 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 24 Nov 2009 12:40:59 +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 Nov 24 13:40:53 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 1NCuhG-00015F-6x for geh-help-gnu-emacs@m.gmane.org; Tue, 24 Nov 2009 13:40:42 +0100 Original-Received: from localhost ([127.0.0.1]:46978 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NCuhF-0006yb-Mr for geh-help-gnu-emacs@m.gmane.org; Tue, 24 Nov 2009 07:40:41 -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: 13 Original-X-Trace: individual.net HG9MM+Xr7fjOZnseUUTXxwiyfrAd3zX9sk8Y4n7sxH77lm8uXZ Cancel-Lock: sha1:N2Y0ZWE1YzYwNThlNjY5ZGZiMmJmODZhYTZiZjNmZTk4Y2ZiNzdiNw== sha1:P9pAeAa3b47D2KjC0Dc+fwpnWUI= 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:175013 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:70084 Archived-At: Alan Mackenzie writes: >> The general contract of a macro is that it returns valid forms. > > Sorry, Pascal, you're just restating the same thing again, not answering > my question. Why should I accept this "general contract of a macro"? I > haven't signed it. ;-) Is there some respected Lisp guru who says this? > What would this guru say about the macro which generates a > font-lock-defaults structure? Perhaps you could ask this question on news:comp.lang.lisp ? -- __Pascal Bourguignon__