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: Debugging a seldom seen bug (C-g with Ido) Date: Wed, 19 Jan 2022 10:54:39 -0500 Message-ID: References: <87o84a642h.fsf@orangeshoelaces.net> <87bl08541h.fsf@orangeshoelaces.net> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30886"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:+Kk1fVibJizJlUwkRjTwm42pC2I= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Jan 19 17:26:47 2022 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 1nADnL-0007tH-FX for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 19 Jan 2022 17:26:47 +0100 Original-Received: from localhost ([::1]:33130 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nADnJ-0005WF-Pt for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 19 Jan 2022 11:26:45 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:47550) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nADIO-0005zG-SX for help-gnu-emacs@gnu.org; Wed, 19 Jan 2022 10:54:48 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:39454) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nADIN-0002Gq-9C for help-gnu-emacs@gnu.org; Wed, 19 Jan 2022 10:54:48 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1nADIK-0005a0-Tg for help-gnu-emacs@gnu.org; Wed, 19 Jan 2022 16:54:44 +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: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.248, 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" Xref: news.gmane.io gmane.emacs.help:135446 Archived-At: > Now if i hit C-g before the candidates are shown, i'm seeing a "[Quit]" > appended to the minibuffer, without other effects, and after a while, > i'd get a list of candidates. When doing it with debug-on-quit set, i > see just one other redisplay_internal call at the top most of the time. > > Debugger entered--Lisp error: (quit) > redisplay_internal\ \(C\ function\)() > read-from-minibuffer("Describe function: " ...) > completing-read-default("Describe function: " ...) > completing-read("Describe function: " ...) > byte-code(...) > call-interactively(describe-function nil nil) > command-execute(describe-function) Hmm... yeah, that's not very helpful. > I don't think there is anything wrong here, other than my flawed > expectations :) It is a somewhat delicate part of `C-g`, and whether it's a bug or not might be debatable, but I think it's clearly an undesirable behavior: it may be hard to change the code to behave better (I don't know), but it qualifies for a bug report if you ask me. It'd be even better if you can reproduce it with a completion package that's better maintained than Ido (e.g. Icomplete, Mct, Ivy, ...). Stefan