From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: thierry.volpiatto@gmail.com Newsgroups: gmane.emacs.help Subject: Re: case-insensitive string< Date: Fri, 17 Apr 2009 17:07:08 +0200 Message-ID: <87ab6fco9v.fsf@tux.homenetwork> References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1239981291 3563 80.91.229.12 (17 Apr 2009 15:14:51 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 17 Apr 2009 15:14:51 +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 Apr 17 17:16:11 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 1LupnV-0006u2-CU for geh-help-gnu-emacs@m.gmane.org; Fri, 17 Apr 2009 17:16:09 +0200 Original-Received: from localhost ([127.0.0.1]:56100 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Lupm5-0007al-Sa for geh-help-gnu-emacs@m.gmane.org; Fri, 17 Apr 2009 11:14:41 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Luplg-0007aR-Mj for help-gnu-emacs@gnu.org; Fri, 17 Apr 2009 11:14:16 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Luplb-0007Wr-9x for help-gnu-emacs@gnu.org; Fri, 17 Apr 2009 11:14:15 -0400 Original-Received: from [199.232.76.173] (port=47352 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Luplb-0007Wo-4k for help-gnu-emacs@gnu.org; Fri, 17 Apr 2009 11:14:11 -0400 Original-Received: from main.gmane.org ([80.91.229.2]:52990 helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Lupla-0004JE-Ox for help-gnu-emacs@gnu.org; Fri, 17 Apr 2009 11:14:11 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1LuplV-00018o-H1 for help-gnu-emacs@gnu.org; Fri, 17 Apr 2009 15:14:05 +0000 Original-Received: from 193.77.197-77.rev.gaoland.net ([77.197.77.193]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 17 Apr 2009 15:14:05 +0000 Original-Received: from thierry.volpiatto by 193.77.197-77.rev.gaoland.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 17 Apr 2009 15:14:05 +0000 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 25 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 193.77.197-77.rev.gaoland.net Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAElBMVEUHAwNfJRBVTESlTym0 RB/OwKFivhZqAAAACXBIWXMAAAsSAAALEgHS3X78AAAACXZwQWcAAAAwAAAAMADO7oxXAAABeElE QVQ4y3VTW47CMAyMwwUyTfYfUvG/wfC/ET4B0t7/KmsHurRgXFVVPRm/xglhsRj2+npW98G3+Amp tS5BXxl3SqzcXGRuEyf7n5lPA9jXetNPRhE7EJkzfz8YWnIgBSwW95TK4H79/t4GINKNADWj4PgA DiJX/ZxFDzDXeb4oYMw7kNUvyMzcaj3ioICG4hCKEShkPpwQ49Q05nnkGAQLDFDdExjm0qpowBYA Wi61bDlFU1GW0WbY2dSJYX5ZD2S0AiZL+rPyE19TpMzP2IvNWly+NkuWNgD4pO2oL73IQXoSyVX2 NHna7tgadWRXoCdvf2guqEcvGHqZwE520iRD0/QCYiiTE+U21w1Qxvg6iSp9fbIiDCnSAelDkCVF Vn+HekqXzRybwJ40xF4DMRG6SWGK9G1lYzHSxLYEm05GWbpJCB6A9tb9A3BGn2XdwJbS/WuInj74 4QNF8sVFdP3vl+5tgYp4Ev7fyrfFMkXgElDgV4uV/w8TWEeLCIGJ/AAAACV0RVh0Y3JlYXRlLWRh dGUAMjAwOC0wNS0zMVQyMDoxNDoyMiswMDowMAS7YjIAAAARdEVYdGpwZWc6Y29sb3JzcGFjZQAy LHVVnwAAACB0RVh0anBlZzpzYW1wbGluZy1mYWN0b3IAMngyLDF4MSwxeDFJ+qa0AAAAJXRFWHRt b2RpZnktZGF0ZQAyMDA3LTEwLTI4VDE2OjA4OjQ4KzAwOjAw44nspgAAAABJRU5ErkJggg== User-Agent: Gnus/5.110011 (No Gnus v0.11) Emacs/23.0.92 (gnu/linux) Cancel-Lock: sha1:jssaABViI7+8bevArN7VnB19hx0= X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) 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:63814 Archived-At: harven writes: > Nikolaj Schumacher writes: > >> What's the fastest way to sort a large list of strings in a >> case-insensitive order? >> >> Calling downcase on every string is rather expensive. Does anyone know >> a better way? > > The sort built-in function uses string< as predicate. > You could use compare-strings instead. It has an option IGNORE-CASE. > Hope that helps. > You can use th cl sort ==> sort* (sort* (list "abc" "abd" "abCde" "cade" "ABC") 'string< :key 'downcase) ("abc" "ABC" "abCde" "abd" "cade") But not sure it is faster than downcasing all strings before sorting. Need testing. -- A + Thierry Volpiatto Location: Saint-Cyr-Sur-Mer - France