From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: how to access a large datastructure efficiently? Date: Thu, 04 Mar 2010 19:29:58 -0500 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1272989144 440 80.91.229.12 (4 May 2010 16:05:44 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 4 May 2010 16:05:44 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue May 04 18:05:43 2010 connect(): No such file or directory 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 4.69) (envelope-from ) id 1O9Kcx-0004hw-On for geh-help-gnu-emacs@m.gmane.org; Tue, 04 May 2010 18:05:43 +0200 Original-Received: from localhost ([127.0.0.1]:45824 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O9Kcx-0008NR-CY for geh-help-gnu-emacs@m.gmane.org; Tue, 04 May 2010 12:05:43 -0400 Original-Path: usenet.stanford.edu!postnews.google.com!news2.google.com!npeer03.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!post01.iad.highwinds-media.com!newsfe01.iad.POSTED!7564ea0f!not-for-mail Original-Newsgroups: gnu.emacs.help User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.92 (gnu/linux) Cancel-Lock: sha1:CnmmMuN11TgkKyWrEONpZGnLSxM= Original-Lines: 11 Original-X-Complaints-To: abuse@UsenetServer.com Original-NNTP-Posting-Date: Fri, 05 Mar 2010 00:29:58 UTC Original-Xref: usenet.stanford.edu gnu.emacs.help:177358 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:72909 Archived-At: > I have a large list of items which I want to access. The items are in > sequential order, but many are missing in between, like: > (1 8 17 23 25 34 45 47 50) [in reality, there is a value associated > with this, but I took it out for simplicity] If those integer-valued keys are really positions in a buffer, then a good solution might be to store this "list" as a text property. Stefan