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#44784: Combining accent is not combining Date: Sat, 21 Nov 2020 22:05:52 +0200 Message-ID: <83v9dyxyov.fsf@gnu.org> References: <87h7piy9qq.fsf@mail.linkov.net> 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="27655"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 44784@debbugs.gnu.org To: Juri Linkov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Nov 21 21:07:48 2020 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 1kgZAg-00075O-Lj for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 21 Nov 2020 21:07:46 +0100 Original-Received: from localhost ([::1]:45318 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kgZAf-0001Xf-KF for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 21 Nov 2020 15:07:45 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39734) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kgZ9y-0000pS-5W for bug-gnu-emacs@gnu.org; Sat, 21 Nov 2020 15:07:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:34693) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kgZ9x-00046E-U8 for bug-gnu-emacs@gnu.org; Sat, 21 Nov 2020 15:07:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kgZ9x-00046l-OB for bug-gnu-emacs@gnu.org; Sat, 21 Nov 2020 15:07:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 21 Nov 2020 20:07:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 44784 X-GNU-PR-Package: emacs Original-Received: via spool by 44784-submit@debbugs.gnu.org id=B44784.160598917215737 (code B ref 44784); Sat, 21 Nov 2020 20:07:01 +0000 Original-Received: (at 44784) by debbugs.gnu.org; 21 Nov 2020 20:06:12 +0000 Original-Received: from localhost ([127.0.0.1]:46239 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kgZ9A-00045k-HR for submit@debbugs.gnu.org; Sat, 21 Nov 2020 15:06:12 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:39462) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kgZ98-00045Y-BE for 44784@debbugs.gnu.org; Sat, 21 Nov 2020 15:06:10 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:34306) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kgZ92-0003lc-2m; Sat, 21 Nov 2020 15:06:04 -0500 Original-Received: from [176.228.60.248] (port=1483 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kgZ91-0003u0-BB; Sat, 21 Nov 2020 15:06:03 -0500 In-Reply-To: <87h7piy9qq.fsf@mail.linkov.net> (message from Juri Linkov on Sat, 21 Nov 2020 21:17:09 +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:193818 Archived-At: > From: Juri Linkov > Date: Sat, 21 Nov 2020 21:17:09 +0200 > > 0. emacs -Q > 1. insert to the *scratch* buffer: > > ä́ і́ Я́ > > In 26.3 everything is correct, and COMBINING ACUTE ACCENT > is combined above its previous character: > > > But in 27.1 COMBINING ACUTE ACCENT is not combined with its previous character: On my system, this displays the same in both Emacs 26 and 27, the latter using HarfBuzz. > It seems in 26.3 it's correct because it uses XFT, but the problem in 27.1 > is with HarfBuzz . Maybe HarfBuzz doesn't support combining accents on > some characters? It fails with the scripts above, but still has no problems > with plain Latin characters. That cannot be the reason. Please try with other fonts, for starters. DejaVu Sans Mono is known to have problems with combining accents, see this discussion: https://lists.freedesktop.org/archives/harfbuzz/2019-August/007422.html