From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#7827: Please do not give an error in help when it fails Date: Tue, 01 Oct 2019 22:53:09 +0200 Message-ID: <87ftkcw5l6.fsf@gnus.org> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="220203"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: 7827@debbugs.gnu.org To: Lennart Borgman Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Oct 02 00:26:33 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 1iFQbH-000v8m-9R for geb-bug-gnu-emacs@m.gmane.org; Wed, 02 Oct 2019 00:26:31 +0200 Original-Received: from localhost ([::1]:48950 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iFQbG-0001VJ-2b for geb-bug-gnu-emacs@m.gmane.org; Tue, 01 Oct 2019 18:26:30 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:33909) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iFP9r-0001sp-Uo for bug-gnu-emacs@gnu.org; Tue, 01 Oct 2019 16:54:12 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iFP9m-0002HM-3R for bug-gnu-emacs@gnu.org; Tue, 01 Oct 2019 16:54:06 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:54358) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iFP9l-0002HG-VU for bug-gnu-emacs@gnu.org; Tue, 01 Oct 2019 16:54:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1iFP9l-0003tx-SY for bug-gnu-emacs@gnu.org; Tue, 01 Oct 2019 16:54:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 01 Oct 2019 20:54:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 7827 X-GNU-PR-Package: emacs Original-Received: via spool by 7827-submit@debbugs.gnu.org id=B7827.156996319514915 (code B ref 7827); Tue, 01 Oct 2019 20:54:01 +0000 Original-Received: (at 7827) by debbugs.gnu.org; 1 Oct 2019 20:53:15 +0000 Original-Received: from localhost ([127.0.0.1]:34943 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iFP91-0003sV-4m for submit@debbugs.gnu.org; Tue, 01 Oct 2019 16:53:15 -0400 Original-Received: from quimby.gnus.org ([80.91.231.51]:60416) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iFP8z-0003sN-3u for 7827@debbugs.gnu.org; Tue, 01 Oct 2019 16:53:13 -0400 Original-Received: from cm-84.212.202.86.getinternet.no ([84.212.202.86] helo=marnie) by quimby.gnus.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iFP8w-00089k-1q; Tue, 01 Oct 2019 22:53:12 +0200 In-Reply-To: (Lennart Borgman's message of "Wed, 12 Jan 2011 02:40:14 +0100") 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:168097 Archived-At: Lennart Borgman writes: > I just got this error when clicking the [back] button in help: > > Debugger entered--Lisp error: (error "Selecting deleted buffer") > describe-mode(#) > apply(describe-mode #) > help-xref-go-back(#) > apply(help-xref-go-back #) > help-do-xref(214 help-xref-go-back (#)) > help-button-action(#) > push-button(214) > call-interactively(push-button nil nil) > > That is very unpractical since it prevents from going further back in > the help stack. (Currently I am trying to find my test case which was > some help text 611 chars long, but I do not remember what it was.) > > Just put the backtrace in the help buffer instead with a short explanation. I don't see why an error in the help buffer should be treated differently than anywhere else: If you have debug-on-error bound, then you should get a proper backtrace. So I'm closing this bug report. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no