From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#43351: 27.1; [PATCH] Change ASCII handling in mm-charset-to-coding-system to us-ascii Date: Sat, 12 Sep 2020 17:19:23 +0300 Message-ID: <83sgbncc2c.fsf@gnu.org> References: <87pn6r13s8.fsf@gnus.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="10494"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 43351@debbugs.gnu.org, alex@bochannek.com To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Sep 12 16:20:11 2020 Return-path: Envelope-to: geb-bug-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 1kH6Nv-0002cb-8O for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 12 Sep 2020 16:20:11 +0200 Original-Received: from localhost ([::1]:38140 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kH6Nu-0007DT-9r for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 12 Sep 2020 10:20:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60554) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kH6Nm-0007D7-Nq for bug-gnu-emacs@gnu.org; Sat, 12 Sep 2020 10:20:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:37019) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kH6Nm-0003cD-Di for bug-gnu-emacs@gnu.org; Sat, 12 Sep 2020 10:20:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kH6Nm-0003aT-9b for bug-gnu-emacs@gnu.org; Sat, 12 Sep 2020 10:20:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 12 Sep 2020 14:20:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43351 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 43351-submit@debbugs.gnu.org id=B43351.159992037413730 (code B ref 43351); Sat, 12 Sep 2020 14:20:02 +0000 Original-Received: (at 43351) by debbugs.gnu.org; 12 Sep 2020 14:19:34 +0000 Original-Received: from localhost ([127.0.0.1]:48561 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kH6NK-0003ZO-0S for submit@debbugs.gnu.org; Sat, 12 Sep 2020 10:19:34 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:56478) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kH6NH-0003Z9-Lb for 43351@debbugs.gnu.org; Sat, 12 Sep 2020 10:19:32 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:36061) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kH6NA-0003Yw-5t; Sat, 12 Sep 2020 10:19:24 -0400 Original-Received: from [176.228.60.248] (port=2017 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kH6N9-0003ZR-Hj; Sat, 12 Sep 2020 10:19:23 -0400 In-Reply-To: <87pn6r13s8.fsf@gnus.org> (message from Lars Ingebrigtsen on Sat, 12 Sep 2020 16:13:43 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:187898 Archived-At: > From: Lars Ingebrigtsen > Date: Sat, 12 Sep 2020 16:13:43 +0200 > Cc: 43351@debbugs.gnu.org > > > In the fix for bug#5458 (2011-06-30), a change was made to > > mm-charset-to-coding-system to support "ansi.x3.4*" as an alias for > > 'ascii. As part of that patch 'us-ascii was also mapped to 'ascii. This > > is problematic because decode-coding-string does not recognize 'ascii as > > a coding system and throws an "Invalid coding system: ascii" exception. > > Indeed; ascii isn't a valid coding system... but poking around here, I > think the function (despite its name) isn't really returning a coding > system. I mean, it does in most cases, but not for ascii. :-/ Maybe the simplest solution is to define a coding-system-alias named 'ascii'.