From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Richard Stallman Newsgroups: gmane.emacs.bugs Subject: bug#38035: 27.0.50; Trivial errors in process filters can render Emacs unusable Date: Sun, 03 Nov 2019 08:21:12 -0500 Message-ID: References: <874kzmdv0q.fsf@gnus.org> Reply-To: rms@gnu.org Content-Type: text/plain; charset=Utf-8 Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="121724"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 38035@debbugs.gnu.org To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Nov 03 14:22:12 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iRFpb-000VV8-MO for geb-bug-gnu-emacs@m.gmane.org; Sun, 03 Nov 2019 14:22:11 +0100 Original-Received: from localhost ([::1]:53818 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iRFpa-0000Ff-H8 for geb-bug-gnu-emacs@m.gmane.org; Sun, 03 Nov 2019 08:22:10 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60156) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iRFpT-0000D4-KF for bug-gnu-emacs@gnu.org; Sun, 03 Nov 2019 08:22:04 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iRFpS-0006f2-FO for bug-gnu-emacs@gnu.org; Sun, 03 Nov 2019 08:22:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:52891) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iRFpS-0006eq-CY for bug-gnu-emacs@gnu.org; Sun, 03 Nov 2019 08:22:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1iRFpS-0002uM-6S for bug-gnu-emacs@gnu.org; Sun, 03 Nov 2019 08:22:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Richard Stallman Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 03 Nov 2019 13:22:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 38035 X-GNU-PR-Package: emacs Original-Received: via spool by 38035-submit@debbugs.gnu.org id=B38035.157278728611128 (code B ref 38035); Sun, 03 Nov 2019 13:22:02 +0000 Original-Received: (at 38035) by debbugs.gnu.org; 3 Nov 2019 13:21:26 +0000 Original-Received: from localhost ([127.0.0.1]:33479 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iRFos-0002tP-0X for submit@debbugs.gnu.org; Sun, 03 Nov 2019 08:21:26 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:50799) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iRFop-0002tC-4D for 38035@debbugs.gnu.org; Sun, 03 Nov 2019 08:21:25 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:40753) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1iRFoj-0005yc-Us; Sun, 03 Nov 2019 08:21:17 -0500 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1iRFoe-0001I4-7D; Sun, 03 Nov 2019 08:21:12 -0500 In-Reply-To: <874kzmdv0q.fsf@gnus.org> (message from Lars Ingebrigtsen on Sat, 02 Nov 2019 18:53:57 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:170868 Archived-At: [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] The special code to make errors in filters visible is an important feature. It prevents confusion, whereby users don't understand what is failing because they don't see the error messages. It also makes possible, as you've pointed out, one more way you can screw yourself with a perverse Lisp program -- but is it worth trying to fix that? -- Dr Richard Stallman Founder, Free Software Foundation (https://gnu.org, https://fsf.org) Internet Hall-of-Famer (https://internethalloffame.org)