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 delete all nil properties from a plist? Date: Sun, 09 Aug 2015 04:28:21 +0200 Message-ID: <87lhdl6vqy.fsf@nl106-137-147.student.uu.se> References: <87oaiq3buh.fsf@mbork.pl> <87mvya3bij.fsf@mbork.pl> <871tfmv5d5.fsf@kuiper.lan.informatimago.com> <87si81u09e.fsf@kuiper.lan.informatimago.com> <87mvy5nwid.fsf@kuiper.lan.informatimago.com> <87egjhnnpq.fsf@kuiper.lan.informatimago.com> <87io8qjuw4.fsf@kuiper.lan.informatimago.com> <87zj21gq6v.fsf@kuiper.lan.informatimago.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1439087440 29843 80.91.229.3 (9 Aug 2015 02:30:40 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 9 Aug 2015 02:30:40 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Aug 09 04:30:32 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 1ZOGNZ-0003KB-DZ for geh-help-gnu-emacs@m.gmane.org; Sun, 09 Aug 2015 04:30:29 +0200 Original-Received: from localhost ([::1]:54225 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZOGNY-000069-LO for geh-help-gnu-emacs@m.gmane.org; Sat, 08 Aug 2015 22:30:28 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57041) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZOGND-0008A9-1R for help-gnu-emacs@gnu.org; Sat, 08 Aug 2015 22:30:08 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZOGN9-0004WL-AV for help-gnu-emacs@gnu.org; Sat, 08 Aug 2015 22:30:06 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:33438) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZOGN9-0004UZ-4c for help-gnu-emacs@gnu.org; Sat, 08 Aug 2015 22:30:03 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ZOGN7-000302-LI for help-gnu-emacs@gnu.org; Sun, 09 Aug 2015 04:30:01 +0200 Original-Received: from nl106-137-246.student.uu.se ([130.243.137.246]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 09 Aug 2015 04:30:01 +0200 Original-Received: from embe8573 by nl106-137-246.student.uu.se with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 09 Aug 2015 04:30:01 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Original-Lines: 32 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: nl106-137-246.student.uu.se Mail-Copies-To: never User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) Cancel-Lock: sha1:6AzTv503G/CgjVA3U2XF9vSoa50= 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:106375 Archived-At: "Pascal J. Bourguignon" writes: > Compare those two forms: > > (if (and (some-predicate-p a) (= a 1) (print (list a (some-function a)))) > (print b)) > (if (and (some-predicate-p a) (= a 1)) (print (list a (some-function a))) > (print b)) > > > and then compare those two forms: > > (when (and (some-predicate-p a) (= a 1) (print (list a (some-function a)))) > (print b)) > (if (and (some-predicate-p a) (= a 1)) > (print (list a (some-function a))) > (print b)) This problem is not a consequence of writing the "then" branch on the same line but having the condition complicated and too long lines in general. If you don't do neither there is nothing wrong with having not only the "then" branch but *both* branches on the same line: (if long "&filters=long&lclk=long" "") -- underground experts united http://user.it.uu.se/~embe8573