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: alists with precomputed variables Date: Wed, 21 Jan 2009 00:49:23 -0500 Organization: A noiseless patient Spider Message-ID: References: <4976ACB8.3030207@biostat.wisc.edu> NNTP-Posting-Host: lo.gmane.org X-Trace: ger.gmane.org 1232520193 12167 80.91.229.12 (21 Jan 2009 06:43:13 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 21 Jan 2009 06:43:13 +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 21 07:44:26 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 1LPWp7-00025t-QM for geh-help-gnu-emacs@m.gmane.org; Wed, 21 Jan 2009 07:44:26 +0100 Original-Received: from localhost ([127.0.0.1]:60474 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LPWnq-0005hj-ND for geh-help-gnu-emacs@m.gmane.org; Wed, 21 Jan 2009 01:43:06 -0500 Original-Path: news.stanford.edu!newsfeed.stanford.edu!newshub.sdsu.edu!feeder.erje.net!news.motzarella.org!motzarella.org!news.motzarella.org!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 27 Original-X-Trace: news.eternal-september.org U2FsdGVkX1/kPub0rLWwwauRh6RYBYHeR0Aq9rp5daFEPEj/wyPTfQBHPE0JskXkh5wNdm4ssroagcetNI3mTpoxAaQGQh66lwU34Qlsb5+9gFgi5abCjB0t6gFm05hAAlsBqOfmc9E= Original-X-Complaints-To: Please send complaints to abuse@motzarella.org with full headers Original-NNTP-Posting-Date: Wed, 21 Jan 2009 05:49:24 +0000 (UTC) X-Auth-Sender: U2FsdGVkX19r1iYCzCBOMvRafYWkS3QZtjj3ek04Iu0= Cancel-Lock: sha1:G7XZcFiZ+td6RZCbkx616x/yJNI= User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) Mail-Copies-To: nobody Original-Xref: news.stanford.edu gnu.emacs.help:166204 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:61525 Archived-At: In article , "Drew Adams" wrote: > > (setq my-var 20) > > (setq my-alist '((p1 . 10) (p2 . my-var))) > > > > I naively thought that would give me > > ((p1 . 10) (p2 . 20)) > > > > but it instead results in > > ((p1 . 10) (p2 . my-var)) > > > > How can I get what I expected? > > (setq my-alist `((p1 . 10) (p2 ,@my-var))) I guess that might work, but ,@ is supposed to be followed by an expression that returns a list, so that it can be spliced into the containing list. It would be better to write: (setq my-alist `((p1 . 10) (p2 . ,my-var))) -- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me *** *** PLEASE don't copy me on replies, I'll read them in the group ***