From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.bugs Subject: bug#44784: Combining accent is not combining Date: Sat, 21 Nov 2020 22:35:11 +0200 Organization: LINKOV.NET Message-ID: <87wnyephxc.fsf@mail.linkov.net> References: <87h7piy9qq.fsf@mail.linkov.net> <83v9dyxyov.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="31211"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (x86_64-pc-linux-gnu) Cc: 44784@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Nov 21 21:37:20 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 1kgZdI-00082A-AC for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 21 Nov 2020 21:37:20 +0100 Original-Received: from localhost ([::1]:55064 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kgZdH-0001nL-BC for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 21 Nov 2020 15:37:19 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:44268) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kgZd3-0001je-JZ for bug-gnu-emacs@gnu.org; Sat, 21 Nov 2020 15:37:05 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:34722) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kgZd0-0006Dh-Df for bug-gnu-emacs@gnu.org; Sat, 21 Nov 2020 15:37:05 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kgZd0-0004pt-BT for bug-gnu-emacs@gnu.org; Sat, 21 Nov 2020 15:37:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Juri Linkov Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 21 Nov 2020 20:37:02 +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=B44784.160599099718545 (code B ref 44784); Sat, 21 Nov 2020 20:37:02 +0000 Original-Received: (at 44784) by debbugs.gnu.org; 21 Nov 2020 20:36:37 +0000 Original-Received: from localhost ([127.0.0.1]:46266 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kgZcb-0004p3-9l for submit@debbugs.gnu.org; Sat, 21 Nov 2020 15:36:37 -0500 Original-Received: from relay2-d.mail.gandi.net ([217.70.183.194]:60609) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kgZca-0004od-Gk for 44784@debbugs.gnu.org; Sat, 21 Nov 2020 15:36:36 -0500 X-Originating-IP: 91.129.97.46 Original-Received: from mail.gandi.net (m91-129-97-46.cust.tele2.ee [91.129.97.46]) (Authenticated sender: juri@linkov.net) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id 728F440009; Sat, 21 Nov 2020 20:36:28 +0000 (UTC) In-Reply-To: <83v9dyxyov.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 21 Nov 2020 22:05:52 +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:193822 Archived-At: > Btw, the report by Emacs 27's "C-u C-x =", viz.: > > Composed with the following character(s) "́" using this font: > xfthb:-PfEd-DejaVu Sans Mono-normal-normal-normal-*-22-*-*-*-m-0-iso10646-1 > by these glyphs: > [0 1 1071 878 13 0 13 16 0 nil] > [0 1 769 649 13 4 11 17 -13 [0 0 0]] > > explicitly says that character composition _did_ happen here, it's > just the display that is broken. And I guess that moving point to > these characters will show a "fat" cursor that includes both the base > character and the accent, once again showing that Emacs did compose > the accent with the preceding character. Actually, separate cursor is shown on a character and separate on its combining character, so it seems they are not composed. >> 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? > > 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: Yes, it displays correctly with other fonts, e.g. Noto Sans. It would be a pity to switch to another font. So this bug report could be closed if nothing can be done in Emacs.