From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Herbert Euler" Newsgroups: gmane.emacs.devel Subject: Re: print-circle and describe-variable Date: Sat, 12 May 2007 00:33:11 +0800 Message-ID: References: <878xczjxt2.fsf@stupidchicken.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-Trace: sea.gmane.org 1178901236 16976 80.91.229.12 (11 May 2007 16:33:56 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 11 May 2007 16:33:56 +0000 (UTC) Cc: lennart.borgman@gmail.com, monnier@iro.umontreal.ca, emacs-devel@gnu.org To: cyd@stupidchicken.com, rms@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri May 11 18:33:55 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1HmY3z-0004OE-IO for ged-emacs-devel@m.gmane.org; Fri, 11 May 2007 18:33:51 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HmYBQ-0001Cp-Gt for ged-emacs-devel@m.gmane.org; Fri, 11 May 2007 12:41:32 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HmYAv-0000l6-Cc for emacs-devel@gnu.org; Fri, 11 May 2007 12:41:01 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1HmYAt-0000ig-Hq for emacs-devel@gnu.org; Fri, 11 May 2007 12:41:00 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HmYAt-0000iW-81 for emacs-devel@gnu.org; Fri, 11 May 2007 12:40:59 -0400 Original-Received: from bay0-omc1-s31.bay0.hotmail.com ([65.54.246.103]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1HmY3Q-0008Ba-E0; Fri, 11 May 2007 12:33:16 -0400 Original-Received: from hotmail.com ([65.55.154.103]) by bay0-omc1-s31.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668); Fri, 11 May 2007 09:33:15 -0700 Original-Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 11 May 2007 09:33:14 -0700 Original-Received: from 65.55.154.123 by by143fd.bay143.hotmail.msn.com with HTTP; Fri, 11 May 2007 16:33:11 GMT X-Originating-IP: [221.223.220.175] X-Originating-Email: [herberteuler@hotmail.com] X-Sender: herberteuler@hotmail.com In-Reply-To: <878xczjxt2.fsf@stupidchicken.com> X-OriginalArrivalTime: 11 May 2007 16:33:14.0794 (UTC) FILETIME=[12A768A0:01C793EA] X-detected-kernel: Windows 2000 SP4, XP SP1+ X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:70833 Archived-At: >Richard Matthew Stallman writes: > > > I think only Lisp hackers will encounter/care about such complicated > > structures, and they are surely able to customize print-length and > > print-level if necessary. > > > > Lots of users will see these variables in values shown by > > describe-variable. And even if they know how to customize, > > it is pure inconvenience to require them to do so. > > > > It would be useful for the help buffer to let RET expand the partly > > hidden value, just as evaluation in the buffer does. And the code > > is already written. > >My point is whether this is even necessary for realistic Emacs usage. >In practice, are there any significant Emacs variables containing >circular structures, that users will want to look up using >describe-variable? I can't think of any off the top of my head. There is a standard, but perhaps not significant Emacs variable may cause Emacs hanging for the sake of reasons described in this thread: `custom-options' in any customize buffer. Regards, Guanpeng Xu _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar - get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/