From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel,gmane.emacs.gnus.general Subject: Re: Mail mode vs message mode Date: Sat, 28 Nov 2009 08:47:52 -0500 Message-ID: References: <87639beb4n.fsf@stupidchicken.com> <876399p00j.fsf@stupidchicken.com> <87iqd8rh73.fsf@marauder.physik.uni-ulm.de> <87r5rvvknw.fsf@stupidchicken.com> <87lji3od0l.fsf@marauder.physik.uni-ulm.de> <87vdh6focv.fsf@stupidchicken.com> <87pr7aftaj.fsf@marauder.physik.uni-ulm.de> <871vjmcmgh.fsf@marauder.physik.uni-ulm.de> <87iqcyb3l9.fsf@stupidchicken.com> <87my2aoyaz.fsf@catnip.gol.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1259416099 8414 80.91.229.12 (28 Nov 2009 13:48:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 28 Nov 2009 13:48:19 +0000 (UTC) Cc: Chong Yidong , ding@gnus.org, emacs-devel@gnu.org To: Miles Bader Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Nov 28 14:48:11 2009 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 1NENej-0003oZ-M6 for ged-emacs-devel@m.gmane.org; Sat, 28 Nov 2009 14:48:09 +0100 Original-Received: from localhost ([127.0.0.1]:54641 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NENej-0006HO-AA for ged-emacs-devel@m.gmane.org; Sat, 28 Nov 2009 08:48:09 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NENea-0006Eo-P0 for emacs-devel@gnu.org; Sat, 28 Nov 2009 08:48:00 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NENeV-0006Bu-HO for emacs-devel@gnu.org; Sat, 28 Nov 2009 08:47:59 -0500 Original-Received: from [199.232.76.173] (port=59257 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NENeV-0006Br-B1 for emacs-devel@gnu.org; Sat, 28 Nov 2009 08:47:55 -0500 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.183]:4049 helo=ironport2-out.pppoe.ca) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NENeT-0005w7-HL; Sat, 28 Nov 2009 08:47:53 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArcEAN+4EEtFpYc//2dsb2JhbACBTdEUhDEEihk X-IronPort-AV: E=Sophos;i="4.47,305,1257138000"; d="scan'208";a="50235847" Original-Received: from 69-165-135-63.dsl.teksavvy.com (HELO pastel.home) ([69.165.135.63]) by ironport2-out.pppoe.ca with ESMTP; 28 Nov 2009 08:47:52 -0500 Original-Received: by pastel.home (Postfix, from userid 20848) id 4D62180E3; Sat, 28 Nov 2009 08:47:52 -0500 (EST) In-Reply-To: <87my2aoyaz.fsf@catnip.gol.com> (Miles Bader's message of "Thu, 26 Nov 2009 10:43:48 +0900") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux) X-detected-operating-system: by monty-python.gnu.org: Genre and OS details not recognized. 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:117906 gmane.emacs.gnus.general:69229 Archived-At: >>>> (defcustom message-foo >>>> (let ((def mail-foo)) >>>> (if (acceptable def) def fallback)) >>>> ...) >>> That kind of defeats the purpose. >> Why? > Isn't the entire purpose of using a default value of `mail-foo' to pick > up any user customizations of mail-foo in .emacs (otherwise it'd be easy > enough to just use a literal "> " as a default for message-yank-prefix)? > So if the user sets mail-yank-prefix to " ", but your (acceptable ...) > test rejects that because it looks wrong, then the purpose has (to some > extent) been defeated... Clearly, we'd want the `acceptable' test to only reject the few default settings of previous Emacsen that are not acceptable and accept anything else. So we'd only ignore user's configurations if they have their mail-foo var customized to one of those older default values. For those, they'll have to set message-foo explicitly instead. Stefan