From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#26742: Display bug with composed strings Date: Tue, 02 May 2017 11:15:31 +0300 Message-ID: <83inljisik.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: blaine.gmane.org 1493713038 32490 195.159.176.226 (2 May 2017 08:17:18 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 2 May 2017 08:17:18 +0000 (UTC) Cc: 26742@debbugs.gnu.org To: =?UTF-8?Q?Cl=C3=A9ment?= Pit--Claudel Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue May 02 10:17:11 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d5Sze-0008IQ-Vd for geb-bug-gnu-emacs@m.gmane.org; Tue, 02 May 2017 10:17:11 +0200 Original-Received: from localhost ([::1]:57349 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d5Szj-0005Ef-6T for geb-bug-gnu-emacs@m.gmane.org; Tue, 02 May 2017 04:17:15 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:39904) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d5SzZ-0005E2-5u for bug-gnu-emacs@gnu.org; Tue, 02 May 2017 04:17:10 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d5SzW-00063H-25 for bug-gnu-emacs@gnu.org; Tue, 02 May 2017 04:17:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:52053) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1d5SzV-000633-VS for bug-gnu-emacs@gnu.org; Tue, 02 May 2017 04:17:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1d5SzV-0006GY-N1 for bug-gnu-emacs@gnu.org; Tue, 02 May 2017 04:17:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 02 May 2017 08:17:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 26742 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 26742-submit@debbugs.gnu.org id=B26742.149371296624016 (code B ref 26742); Tue, 02 May 2017 08:17:01 +0000 Original-Received: (at 26742) by debbugs.gnu.org; 2 May 2017 08:16:06 +0000 Original-Received: from localhost ([127.0.0.1]:50252 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d5Syc-0006FI-9q for submit@debbugs.gnu.org; Tue, 02 May 2017 04:16:06 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:48448) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d5Sya-0006EY-Qz for 26742@debbugs.gnu.org; Tue, 02 May 2017 04:16:05 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d5SyS-0005Gl-M5 for 26742@debbugs.gnu.org; Tue, 02 May 2017 04:15:59 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:54642) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d5SyS-0005GW-J6; Tue, 02 May 2017 04:15:56 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:2054 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1d5SyR-0000h9-Vf; Tue, 02 May 2017 04:15:56 -0400 In-reply-to: (message from =?UTF-8?Q?Cl=C3=A9ment?= Pit--Claudel on Tue, 2 May 2017 02:58:19 -0400) 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: 208.118.235.43 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:132182 Archived-At: > From: Clément Pit--Claudel > Date: Tue, 2 May 2017 02:58:19 -0400 > > If I create a file temp.txt containing the following: > > -*- prettify-symbols-alist: (("R_PO" 8477 (Br . cl) 8804)); -*- > !!! R_PO !!! > > and run ‘emacs-24.5 -Q temp.txt -f prettify-symbols-mode’, I observe a surprising display bug: when I move the point across the second line, as soon as the point reaches the blank space after “R_PO”, I see a second ℝ displayed instead of the third “!”. > > Concretely, the line looks like “!!! ℝ≤ !!!” until I reach the second blank, and then it changes to “!!ℝ ℝ≤ !!!”. Resizing the window fixes the issue until the next cursor blink. Additionally, when the point is on R_PO, the point disappears — and taking a screenshot makes the prettified R_PO (ℝ≤) disappear, too (?!). > > Is this a known issue? Can anyone else reproduce it? I have attached a few pictures (all of them show the same buffer text) — let me know if I can provide any other info! I cannot reproduce this on my system, neither in Emacs 24.5 nor in 25.2 nor in the current master. If you change the font use for displaying ℝ and ≤, does the problem go away?