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#49562: 27.2; Crash with specific mode-line-format in BiDi processing Date: Sun, 18 Jul 2021 17:31:25 +0300 Message-ID: <83lf637kxu.fsf@gnu.org> References: <83pmvk7lty.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39939"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 49562-done@debbugs.gnu.org To: Martin =?UTF-8?Q?Br=C3=BCstel?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Jul 18 20:13:49 2021 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 1m5BIS-000A9o-Cc for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 18 Jul 2021 20:13:48 +0200 Original-Received: from localhost ([::1]:47612 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m5BIR-0004ug-Ep for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 18 Jul 2021 14:13:47 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48508) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m5BHm-00041T-08 for bug-gnu-emacs@gnu.org; Sun, 18 Jul 2021 14:13:06 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:45632) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m5BHk-0007cZ-Vq for bug-gnu-emacs@gnu.org; Sun, 18 Jul 2021 14:13:05 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1m5BHk-0008Vs-T7 for bug-gnu-emacs@gnu.org; Sun, 18 Jul 2021 14:13:04 -0400 Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-To: bug-gnu-emacs@gnu.org Resent-Date: Sun, 18 Jul 2021 18:13:04 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: cc-closed 49562 X-GNU-PR-Package: emacs Mail-Followup-To: 49562@debbugs.gnu.org, eliz@gnu.org, martin.bruestel@tu-dresden.de Original-Received: via spool by 49562-done@debbugs.gnu.org id=D49562.162663193432524 (code D ref 49562); Sun, 18 Jul 2021 18:13:04 +0000 Original-Received: (at 49562-done) by debbugs.gnu.org; 18 Jul 2021 18:12:14 +0000 Original-Received: from localhost ([127.0.0.1]:57149 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1m5BGv-0008SW-W6 for submit@debbugs.gnu.org; Sun, 18 Jul 2021 14:12:14 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:50580) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1m5BGu-0008S6-4R for 49562-done@debbugs.gnu.org; Sun, 18 Jul 2021 14:12:12 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:45090) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m57pO-0003Uw-AE; Sun, 18 Jul 2021 10:31:34 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:4613 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m57pN-0001E6-U7; Sun, 18 Jul 2021 10:31:34 -0400 In-Reply-To: (message from Martin =?UTF-8?Q?Br=C3=BCstel?= on Thu, 15 Jul 2021 11:30:27 +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:210194 Archived-At: > From: Martin Brüstel > CC: <49562@debbugs.gnu.org> > Date: Thu, 15 Jul 2021 11:30:27 +0200 > > > The "evil" mode-line string includes invalid use of bidi formatting > > controls: you have there a U+202A LEFT-TO-RIGHT EMBEDDING without a > > matching U+202C POP DIRECTIONAL FORMATTING. Removing the former or > > adding the latter avoids the crash. > > Thanks for finding the cause! It turns out, the control chars are > actually already in the window title of the browser window. The > imbalance results from truncating the name to a certain length. This tricky bug is now fixed on the master branch. It actually revealed a design flaw in the original code. Thanks.