From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: How to mapcar or across a list? Date: Thu, 16 Jul 2015 00:36:08 +0200 Message-ID: <871tg9ujzb.fsf@nl106-137-147.student.uu.se> References: <87io9lmb4z.fsf@mbork.pl> <87oajdkqc7.fsf@kuiper.lan.informatimago.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1436999890 6639 80.91.229.3 (15 Jul 2015 22:38:10 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 15 Jul 2015 22:38:10 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Jul 16 00:38:00 2015 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZFVJQ-000677-Im for geh-help-gnu-emacs@m.gmane.org; Thu, 16 Jul 2015 00:38:00 +0200 Original-Received: from localhost ([::1]:37720 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZFVJQ-0003BA-02 for geh-help-gnu-emacs@m.gmane.org; Wed, 15 Jul 2015 18:38:00 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:54911) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZFVJD-0003B2-ST for help-gnu-emacs@gnu.org; Wed, 15 Jul 2015 18:37:49 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZFVJA-0003oA-Lo for help-gnu-emacs@gnu.org; Wed, 15 Jul 2015 18:37:47 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:41118) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZFVJA-0003o1-Fm for help-gnu-emacs@gnu.org; Wed, 15 Jul 2015 18:37:44 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ZFVJ8-00060g-IM for help-gnu-emacs@gnu.org; Thu, 16 Jul 2015 00:37:42 +0200 Original-Received: from nl106-137-156.student.uu.se ([130.243.137.156]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 16 Jul 2015 00:37:42 +0200 Original-Received: from embe8573 by nl106-137-156.student.uu.se with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 16 Jul 2015 00:37:42 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Original-Lines: 19 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: nl106-137-156.student.uu.se Mail-Copies-To: never User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) Cancel-Lock: sha1:nEGJ0AAjN5vUmfQkoGFNJoP8434= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:105747 Archived-At: "Pascal J. Bourguignon" writes: > It's always a bad idea to use eval, because eval > evalutes in the nil environment, not in the local > lexical envrionment. > > Your example works because those lists are literal, > but then you don't need or to know the answer. OK, what about doing `cl-dolist' which we also had in a recent discussion? (cl-dolist (b boolean-list-1) (when b (cl-return t))) ; t (cl-dolist (b boolean-list-2) (when b (cl-return t))) ; nil -- underground experts united http://user.it.uu.se/~embe8573