From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: Unexpected fill-paragraph behaviour in message-mode Date: Wed, 15 Feb 2023 12:02:59 -0500 Message-ID: References: <87r0uu2wu3.fsf@rak.ac> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="35215"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:FG1J/PoIClRS1gDZ5rAr6i4JuWU= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Feb 15 18:03:46 2023 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pSLC5-0008zc-CF for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 15 Feb 2023 18:03:45 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pSLBY-0000v9-K2; Wed, 15 Feb 2023 12:03:12 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pSLBV-0000hL-Rg for help-gnu-emacs@gnu.org; Wed, 15 Feb 2023 12:03:10 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pSLBU-0003Mg-AO for help-gnu-emacs@gnu.org; Wed, 15 Feb 2023 12:03:09 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1pSLBS-00084K-LA for help-gnu-emacs@gnu.org; Wed, 15 Feb 2023 18:03:06 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:142762 Archived-At: > --------------------------------- > From: > To: > Cc: > Bcc: > Subject: Weird fill-paragraph behaviour > Reply-To: > > Emacs has weird wrapping behaviour in message mode. To reproduce, > first (M-x message-mode). > > Filling this long line (M-q anywhere on it) joins it with the following > indented text, which it should not because there is an empty line marking > the end of this paragraph: It looks like `message-mode` thinks you're still in the header part of the message because of the lack of the separator that `message-mode` uses (i.e. "--text follows this line--") > Quickly skimming message.el, it looks like message-mode (only?) supports > mail and news. In those cases, RFC 5322 §2.1 [0] and RFC 5536 §2 [1] > give the following separator: These RFCs document the format of messages when they leave the MUA, but the format within the MUA (e.g. within a `message-mode` buffer) if up to the MUA, of course. > (re-search-forward > (concat "^" (regexp-quote mail-header-separator) "$") For a more graceful degradation, `message-mode` should treat an empty line as the header separator when the "--text follows this line--" thingy is missing, indeed. [ I wouldn't be surprised if `message-mode` ends up generating incorrectly formatted messages if you include an empty line the header. ] Patch welcome :-) Stefan