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: `looking-back' strange warning Date: Thu, 01 Oct 2015 20:15:23 -0400 Message-ID: References: <560B9C7F.2060301@easy-emacs.de> <560CD7CE.4010404@yandex.ru> <6524c81a-949c-40d1-b990-d214d6ee5b60@default> <560D73DF.8040403@yandex.ru> <560D7A68.8040404@easy-emacs.de> <560D8289.6010409@yandex.ru> <560D8F96.5040200@easy-emacs.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1443746153 6964 80.91.229.3 (2 Oct 2015 00:35:53 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 2 Oct 2015 00:35:53 +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 Oct 02 02:35:32 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 1ZhoJv-0006aE-KY for geh-help-gnu-emacs@m.gmane.org; Fri, 02 Oct 2015 02:35:32 +0200 Original-Received: from localhost ([::1]:56793 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZhoJu-0007tU-U3 for geh-help-gnu-emacs@m.gmane.org; Thu, 01 Oct 2015 20:35:30 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56257) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZhoJg-0007so-Pk for help-gnu-emacs@gnu.org; Thu, 01 Oct 2015 20:35:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZhoJb-0002r8-R1 for help-gnu-emacs@gnu.org; Thu, 01 Oct 2015 20:35:16 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:51522) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZhoJb-0002qm-LH for help-gnu-emacs@gnu.org; Thu, 01 Oct 2015 20:35:11 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Zho4y-0006du-O3 for help-gnu-emacs@gnu.org; Fri, 02 Oct 2015 02:20:04 +0200 Original-Received: from 69-196-161-8.dsl.teksavvy.com ([69.196.161.8]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 02 Oct 2015 02:20:04 +0200 Original-Received: from monnier by 69-196-161-8.dsl.teksavvy.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 02 Oct 2015 02:20:04 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 10 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 69-196-161-8.dsl.teksavvy.com User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) Cancel-Lock: sha1:ADhcGTOITmxGOUHlCMYI8dLmM+A= 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:107448 Archived-At: > Depending from the task it might be useful You can pass (point-min) for the limit if that's what you want. Making it optional Encourages people to think that looking-at is just like looking-back, with the same performance characteristic, whereas making it mandatory encourages people to put a reasonable limit and hence avoid pathological behavior at the end of large buffers. Stefan