From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.org!not-for-mail
From: Chong Yidong <cyd@stupidchicken.com>
Newsgroups: gmane.emacs.devel
Subject: Mail mode vs message mode
Date: Sun, 15 Nov 2009 16:22:48 -0500
Message-ID: <87639beb4n.fsf@stupidchicken.com>
NNTP-Posting-Host: lo.gmane.org
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Trace: ger.gmane.org 1258320202 12108 80.91.229.12 (15 Nov 2009 21:23:22 GMT)
X-Complaints-To: usenet@ger.gmane.org
NNTP-Posting-Date: Sun, 15 Nov 2009 21:23:22 +0000 (UTC)
To: emacs-devel@gnu.org
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Nov 15 22:23:15 2009
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>
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 1N9mYy-0002cR-1q
	for ged-emacs-devel@m.gmane.org; Sun, 15 Nov 2009 22:23:12 +0100
Original-Received: from localhost ([127.0.0.1]:45512 helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43)
	id 1N9mYx-0005Gl-DX
	for ged-emacs-devel@m.gmane.org; Sun, 15 Nov 2009 16:23:11 -0500
Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1N9mYg-0005Es-TN
	for emacs-devel@gnu.org; Sun, 15 Nov 2009 16:22:55 -0500
Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1N9mYb-0005EM-VW
	for emacs-devel@gnu.org; Sun, 15 Nov 2009 16:22:54 -0500
Original-Received: from [199.232.76.173] (port=36275 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1N9mYb-0005EJ-S5
	for emacs-devel@gnu.org; Sun, 15 Nov 2009 16:22:49 -0500
Original-Received: from pantheon-po26.its.yale.edu ([130.132.50.121]:52699)
	by monty-python.gnu.org with esmtps
	(TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60)
	(envelope-from <cyd@stupidchicken.com>) id 1N9mYb-0005qM-Kf
	for emacs-devel@gnu.org; Sun, 15 Nov 2009 16:22:49 -0500
Original-Received: from furry (dhcp128036163117.central.yale.edu [128.36.163.117])
	(authenticated bits=0)
	by pantheon-po26.its.yale.edu (8.12.11.20060308/8.12.11) with ESMTP id
	nAFLMme5030326
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT)
	for <emacs-devel@gnu.org>; Sun, 15 Nov 2009 16:22:48 -0500
Original-Received: by furry (Postfix, from userid 1000)
	id 3758FC071; Sun, 15 Nov 2009 16:22:48 -0500 (EST)
X-YaleITSMailFilter: Version 1.2c (attachment(s) not renamed)
X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.4-2.6
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <http://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <http://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=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:117014
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/117014>

If we are to switch to message-mode for Emacs 23.2, there remains
several issues that need to be resolved.  However, no one has done
anything.  If no one has fixed these issues during the next few weeks, I
think we should revert back to mail-mode.

I've taken a quick look, and the problems mainly come in three
categories.

1. Variables that are straightfowardly duplicated by message-mode.
   These variables should be either made into variable aliases (assuming
   no one would ever want to have different behaviors between
   message-mode and mail-mode):

   mail-from-style      message-from-style
   mail-envelope-from   message-envelope-from
   mail-interactive     message-interactive
   mail-yank-prefix     message-yank-prefix
   mail-signature       message-signature
   mail-signature-file  message-signature-file
   mail-default-headers message-default-headers
   mail-indentation-spaces         message-indentation-spaces
   mail-mailer-swallows-blank-line message-mailer-swallows-blank-line

   This will probably require compatibility code for XEmacs, too.

2. Hook variables.  I am not sure what to do about this, but the switch
   has bitten at least one use (Bug#3942).  Maybe we should make these
   variable aliases too:

   mail-mode-hook     message-mode-hook
   mail-citation-hook message-citation-hook
   mail-setup-hook    message-setup-hook
   mail-send-hook     message-send-hook

3. Variables that affect mail-mode but have no counterpart in message
   mode.  These need code changes:

   mail-specify-envelope-from  <???> message-sendmail-envelope-from
   mail-self-blind
   mail-yank-ignored-headers
   mail-archive-file-name
   mail-default-reply-to
   mail-default-directory
   mail-bury-selects-summary