From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ted Zlatanov Newsgroups: gmane.emacs.devel Subject: Re: Recent change to describe-variable Date: Mon, 04 Apr 2011 04:41:56 -0500 Organization: =?utf-8?B?0KLQtdC+0LTQvtGAINCX0LvQsNGC0LDQvdC+0LI=?= @ Cienfuegos Message-ID: <87r59ibbff.fsf@lifelogs.com> References: <874o6gur58.fsf@stupidchicken.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1301910149 10216 80.91.229.12 (4 Apr 2011 09:42:29 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 4 Apr 2011 09:42:29 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Apr 04 11:42:25 2011 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 4.69) (envelope-from ) id 1Q6gIi-0007tj-Gu for ged-emacs-devel@m.gmane.org; Mon, 04 Apr 2011 11:42:24 +0200 Original-Received: from localhost ([127.0.0.1]:36101 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q6gIh-0001gn-AL for ged-emacs-devel@m.gmane.org; Mon, 04 Apr 2011 05:42:23 -0400 Original-Received: from [140.186.70.92] (port=57944 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q6gIb-0001g3-Ob for emacs-devel@gnu.org; Mon, 04 Apr 2011 05:42:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q6gIW-0008Ew-05 for emacs-devel@gnu.org; Mon, 04 Apr 2011 05:42:17 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:56521) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q6gIV-0008Em-Qt for emacs-devel@gnu.org; Mon, 04 Apr 2011 05:42:11 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1Q6gIS-0007mA-I5 for emacs-devel@gnu.org; Mon, 04 Apr 2011 11:42:08 +0200 Original-Received: from c-67-186-102-106.hsd1.il.comcast.net ([67.186.102.106]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 04 Apr 2011 11:42:08 +0200 Original-Received: from tzz by c-67-186-102-106.hsd1.il.comcast.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 04 Apr 2011 11:42:08 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 25 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: c-67-186-102-106.hsd1.il.comcast.net X-Face: bd.DQ~'29fIs`T_%O%C\g%6jW)yi[zuz6; d4V0`@y-~$#3P_Ng{@m+e4o<4P'#(_GJQ%TT= D}[Ep*b!\e,fBZ'j_+#"Ps?s2!4H2-Y"sx" User-Agent: Gnus/5.110016 (No Gnus v0.16) Emacs/24.0.50 (gnu/linux) Cancel-Lock: sha1:+x+Ny1hViJ+26k9DpFnO1ztwbAM= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 80.91.229.12 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:138100 Archived-At: On Sat, 02 Apr 2011 20:15:15 -0400 Chong Yidong wrote: CY> The completion function for describe-variable now uses the predicate CY> (lambda (vv) CY> (or (special-variable-p vv) CY> (get vv 'variable-documentation))) CY> This breaks using C-h v to examine let-bound variables in Lisp CY> backtraces. CY> Also, when coding I sometimes do (setq foo 1), and use C-h v to examine CY> the placeholder variable later on; this now fails. CY> There doesn't seem to be any good reason to restrict the completion this CY> way. I think I reported this. It is too wide without that predicate. See http://thread.gmane.org/gmane.emacs.devel/137048 So if `C-h v' AKA `describe-variable' is going to describe everything, it should at least filter out self-quoting :symbols, and I think it makes sense to provide a `describe-emacs-variable' to use the predicate above, adjusting for let-bound variables. Ted