From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Marcin Borkowski Newsgroups: gmane.emacs.help Subject: How to iterate over properties in a plist? Date: Fri, 31 Jul 2015 23:42:37 +0200 Message-ID: <876150vwaa.fsf@mbork.pl> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1438378998 30629 80.91.229.3 (31 Jul 2015 21:43:18 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 31 Jul 2015 21:43:18 +0000 (UTC) To: Help Gnu Emacs mailing list Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jul 31 23:43:11 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 1ZLI57-0003Uf-Ry for geh-help-gnu-emacs@m.gmane.org; Fri, 31 Jul 2015 23:43:10 +0200 Original-Received: from localhost ([::1]:46107 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZLI57-00011J-5r for geh-help-gnu-emacs@m.gmane.org; Fri, 31 Jul 2015 17:43:09 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40883) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZLI4y-00011E-KT for help-gnu-emacs@gnu.org; Fri, 31 Jul 2015 17:43:01 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZLI4r-00019l-UV for help-gnu-emacs@gnu.org; Fri, 31 Jul 2015 17:43:00 -0400 Original-Received: from mail.mojserwer.eu ([2a01:5e00:2:52::8]:50297) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZLI4r-00018B-Me for help-gnu-emacs@gnu.org; Fri, 31 Jul 2015 17:42:53 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by mail.mojserwer.eu (Postfix) with ESMTP id 4D9728F2004 for ; Fri, 31 Jul 2015 23:42:50 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mail.mojserwer.eu Original-Received: from mail.mojserwer.eu ([127.0.0.1]) by localhost (mail.mojserwer.eu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ILq4dW6a5ZiL for ; Fri, 31 Jul 2015 23:42:43 +0200 (CEST) Original-Received: from localhost (unknown [109.232.24.146]) by mail.mojserwer.eu (Postfix) with ESMTPSA id 73D1B8F2003 for ; Fri, 31 Jul 2015 23:42:43 +0200 (CEST) X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2a01:5e00:2:52::8 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:106170 Archived-At: Hi all, I need to iterate over all properties in a plist. Obviously, mapcar (or mapc, since I need side effects only) is of no use for me. I can easily write a plist-mapc function: --8<---------------cut here---------------start------------->8--- (defun plist-mapc (function plist) "Iterate FUNCTION (a two-argument function) over PLIST. Error checking is for weenies." (when plist (funcall function (car plist) (cadr plist)) (plist-mapc function (cddr plist)))) --8<---------------cut here---------------end--------------->8--- but maybe it's there already? TIA, -- Marcin Borkowski http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski Faculty of Mathematics and Computer Science Adam Mickiewicz University