From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Should mode commands be idempotent? Date: Sun, 08 Oct 2017 15:04:30 -0400 Message-ID: References: <9f11a3c6-b113-4bf6-9dab-f894b2ad77b5@default> <55da155a-03b1-d3ed-4036-12e5a60fa26c@gmail.com> <950166e7-2766-8a3e-1bc2-a93a356f652c@gmail.com> <118feee3-5787-43b7-9c9b-06907a16a448@default> <2564c62e-a419-45d8-809f-433a6f7c3808@default> <44241233-0da3-4536-ab64-4071ecbfdac5@default> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1507489527 26964 195.159.176.226 (8 Oct 2017 19:05:27 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 8 Oct 2017 19:05:27 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Oct 08 21:05:23 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e1Gt9-0006RL-0F for ged-emacs-devel@m.gmane.org; Sun, 08 Oct 2017 21:05:23 +0200 Original-Received: from localhost ([::1]:54712 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e1GtG-0000Ov-DR for ged-emacs-devel@m.gmane.org; Sun, 08 Oct 2017 15:05:30 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:39693) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e1GsZ-0000Oo-MA for emacs-devel@gnu.org; Sun, 08 Oct 2017 15:04:49 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e1GsW-0000S9-H8 for emacs-devel@gnu.org; Sun, 08 Oct 2017 15:04:47 -0400 Original-Received: from [195.159.176.226] (port=44353 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1e1GsV-0000Oh-Su for emacs-devel@gnu.org; Sun, 08 Oct 2017 15:04:44 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1e1GsJ-00009b-Sa for emacs-devel@gnu.org; Sun, 08 Oct 2017 21:04:31 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 10 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:pk+EIcKni/nsmyYzq5XPWGOjmWQ= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:219265 Archived-At: > +@item > +Calling the major mode command twice in direct succession should not > +fail and should do the same thing as calling the command only once. I think I'd prefer it if the word "idempotent" was mentioned (not *instead* of what you have, but additionally). Other than that: LGTM. Stefan