From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: =?ISO-8859-1?Q?Nordl=F6w?= Newsgroups: gmane.emacs.help Subject: Re: completing-read() on list of vectors Date: Fri, 12 Sep 2008 04:19:14 -0700 (PDT) Organization: http://groups.google.com Message-ID: <422659c0-a023-4c2d-b714-f65aa74afeaa@8g2000hse.googlegroups.com> References: <728990ea-9650-49dc-b4c3-4f9578856039@8g2000hse.googlegroups.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1221219672 17109 80.91.229.12 (12 Sep 2008 11:41:12 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 12 Sep 2008 11:41:12 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Sep 12 13:42:08 2008 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 1Ke72J-0006i3-Bk for geh-help-gnu-emacs@m.gmane.org; Fri, 12 Sep 2008 13:42:03 +0200 Original-Received: from localhost ([127.0.0.1]:35636 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Ke71J-00063e-3P for geh-help-gnu-emacs@m.gmane.org; Fri, 12 Sep 2008 07:41:01 -0400 Original-Path: news.stanford.edu!headwall.stanford.edu!newsfeed.stanford.edu!postnews.google.com!8g2000hse.googlegroups.com!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 48 Original-NNTP-Posting-Host: 150.227.15.253 Original-X-Trace: posting.google.com 1221218355 16993 127.0.0.1 (12 Sep 2008 11:19:15 GMT) Original-X-Complaints-To: groups-abuse@google.com Original-NNTP-Posting-Date: Fri, 12 Sep 2008 11:19:15 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: 8g2000hse.googlegroups.com; posting-host=150.227.15.253; posting-account=ytJKAgoAAAA1tg4ScoRszebXiIldA5vg User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux i686; sv-SE; rv:1.9.0.1) Gecko/2008072820 Firefox/3.0.1,gzip(gfe),gzip(gfe) X-HTTP-Via: 1.1 netcache (NetCache NetApp/6.1.1RC1) Original-Xref: news.stanford.edu gnu.emacs.help:162131 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:57472 Archived-At: On 12 Sep, 12:30, Nordl=F6w wrote: > If I have the following association list (alist): > > (defvar c++-stl-algorithms > =A0 '( > =A0 =A0 ("adjacent_difference" "" "Compute the differences > between adjacent elements in a range") > =A0 =A0 ("adjacent_find" "" "Finds two items that are adjacent > to eachother") > =A0 )) > > how can I modify the use of completing-read() to make the function > > (defun read-c++-stl-algorithm () > =A0 (let* ((sym (thing-at-point 'symbol)) > =A0 =A0 =A0 =A0 =A0(cont (completing-read (concat "C++ STL Algorithm (def= ault " > sym "): ") > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 c++-stl-a= lgorithms nil t nil nil > sym))) > =A0 =A0 (list cont))) > > to instead work on this list of vectors: > > (defvar c++-stl-algorithms > =A0 '( > =A0 =A0 ["adjacent_difference" "" "Compute the differences > between adjacent elements in a range"] > =A0 =A0 ["adjacent_find" "" "Finds two items that are adjacent > to eachother"] > =A0 )) > > I guess I need to give it an explicit completion function (as second > argument) to achieve lookups of list of vectors where for example > "accumulate" is used as key and the return value is the whole list > element (vector). > > Why doesn't completing-read() already work on list of vectors where > first vector element is a string aswell? > > Thanks in advance, > Nordl=F6w It believe it boils down to the search for a function like assoc() that takes a list of vectors as arguments. /Nordl=F6w