From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Leo Liu Newsgroups: gmane.emacs.help Subject: Re: narrowing considered harmful Date: Mon, 17 Jun 2013 00:42:27 +0800 Message-ID: References: <51AC4543.1000508@easy-emacs.de> <51AC4C03.7050504@easy-emacs.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1371400973 21738 80.91.229.3 (16 Jun 2013 16:42:53 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 16 Jun 2013 16:42:53 +0000 (UTC) Cc: help-gnu-emacs@gnu.org To: Stefan Monnier Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Jun 16 18:42:53 2013 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 1UoG2X-0005Kh-H6 for geh-help-gnu-emacs@m.gmane.org; Sun, 16 Jun 2013 18:42:53 +0200 Original-Received: from localhost ([::1]:35565 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoG2X-0006Py-5Z for geh-help-gnu-emacs@m.gmane.org; Sun, 16 Jun 2013 12:42:53 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55478) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoG2K-0006PX-Ds for help-gnu-emacs@gnu.org; Sun, 16 Jun 2013 12:42:42 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UoG2J-0005Ct-KL for help-gnu-emacs@gnu.org; Sun, 16 Jun 2013 12:42:40 -0400 Original-Received: from mail-pa0-x231.google.com ([2607:f8b0:400e:c03::231]:37592) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoG2J-0005Co-E9 for help-gnu-emacs@gnu.org; Sun, 16 Jun 2013 12:42:39 -0400 Original-Received: by mail-pa0-f49.google.com with SMTP id ld11so2093767pab.22 for ; Sun, 16 Jun 2013 09:42:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:references:face:date:in-reply-to:message-id :user-agent:mime-version:content-type; bh=+iYxgStRnVSbjQOwqLgahFIPpJ/Ymz0KOcMrAlLpiTk=; b=YWow6cAZJ7ehg71KcrjZejTAsU0E6gd9rw8NeDRSkpW1sfrZCCdwa7nib8KFCxrRoi aCuDKWNpBJBXbTq2vkGM8uDWQs7YERVHw3YydO9EoJpffWV1nTPexgA4xNI5ZZ5w9oFk LDPRk6FlRNWBPGlbqAF50tRTYU3ub06Tu6MtoiC5HgUJOuvRRUNYkr4d2ZKYmtjBvsbk RdonN1FxYj0t7HzG1IAtUtIZHKSiMhO478muwgyxCZ7qcQ+5gSBDUd8L9WDL41yuxvuC 6ccWOHFUWIiQPTrbHjbv4u2JYu0ccwB7Kbst6iu47RUxPwytyNVbKcYggi/mEYE7R8ks s2FQ== X-Received: by 10.68.197.98 with SMTP id it2mr9991789pbc.200.1371400958216; Sun, 16 Jun 2013 09:42:38 -0700 (PDT) Original-Received: from Zeuss-MacBook.local ([61.148.243.60]) by mx.google.com with ESMTPSA id dj5sm1209827pbc.25.2013.06.16.09.42.34 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Sun, 16 Jun 2013 09:42:37 -0700 (PDT) Face: iVBORw0KGgoAAAANSUhEUgAAACgAAAAoBAMAAAB+0KVeAAAAElBMVEUAAAAAAP+LRRP0pGC+ vr7///+7mT1iAAAAAWJLR0QAiAUdSAAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9cBBwMO DhglKe4AAAEsSURBVCjPbZNBboQwDEV/Cd4X9QJRThApmn0XYW+Jyf2v0m+HhqDBgiAe9rcTG7QH w/1Vn2Ar8gBb/ocywSN3qK9T3z4eFDB4eApocBpeBs1RSykoJd8gQcm8pGmHXFso3ajnmsqV0TnY DQkOfXUfN5NwaI7AWTVOyEhcu1aHmdWItHddUVUcUgUBCkitu8V6ditHVOVdqzl2EQ1ZVGTbdK0V 7cqn8vWzoU5Q/bF9Y/Y0cRU1xwkys5dJ+Dt6pBDWifcNQml8Gh2JVmPSoQzo7en0grswkxrUGYJ7 0hSxxAGr7ZMwYcHIzprpi7TENEE1xtiYxixRlCfPBsUUrwHD7uGIwATrbnODJcVrPpVn3hxiGloe m/S+z3CtuzUSMo83N4DPH+F0evwR3P4A2k+75838OKQAAAAASUVORK5CYII= In-Reply-To: (Stefan Monnier's message of "Fri, 14 Jun 2013 22:43:37 -0400") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (OS X 10.8.3) X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2607:f8b0:400e:c03::231 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:91571 Archived-At: On 2013-06-15 10:43 +0800, Stefan Monnier wrote: > I wouldn't worry about it. It can even be a bad idea (set-marker to > nil requires scanning the whole list of markers, so it can take a while. > It can be more efficient to let the GC collect them later on). > > > Stefan Good to know this. The manual contains this: ,----[ (info "(elisp)Overview of Markers") ] | ;; When you are finished using a marker, make it point nowhere. | (set-marker m1 nil) | => # `---- Should that be changed? Leo