From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#14461: 24.3.50; bad display for 'space' + (U+0336) unicode combination Date: Sat, 17 Aug 2019 17:14:45 +0300 Message-ID: <8336hzop4a.fsf@gnu.org> References: <519f7a1c.0324b40a.4997.ffff96ea@mx.google.com> <87woff117q.fsf@mouse.gnus.org> <871rxmiyyi.fsf@gmx.net> <5d552da4.1c69fb81.c51aa.76af@mx.google.com> <87wofehasr.fsf@gmx.net> <83d0h4ngrx.fsf@gnu.org> <87r25jucir.fsf@gmx.net> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="137632"; mail-complaints-to="usenet@blaine.gmane.org" Cc: larsi@gnus.org, cedric.chepied@gmail.com, 14461@debbugs.gnu.org To: Stephen Berman Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Aug 17 16:15:11 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 1hyzU7-000Ze4-Ei for geb-bug-gnu-emacs@m.gmane.org; Sat, 17 Aug 2019 16:15:11 +0200 Original-Received: from localhost ([::1]:36460 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1hyzU5-0001pz-NJ for geb-bug-gnu-emacs@m.gmane.org; Sat, 17 Aug 2019 10:15:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:52719) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1hyzTz-0001pt-G7 for bug-gnu-emacs@gnu.org; Sat, 17 Aug 2019 10:15:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hyzTy-0001eA-E5 for bug-gnu-emacs@gnu.org; Sat, 17 Aug 2019 10:15:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:47854) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hyzTy-0001dj-AY for bug-gnu-emacs@gnu.org; Sat, 17 Aug 2019 10:15:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hyzTy-0004sq-5G for bug-gnu-emacs@gnu.org; Sat, 17 Aug 2019 10:15:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 17 Aug 2019 14:15:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 14461 X-GNU-PR-Package: emacs Original-Received: via spool by 14461-submit@debbugs.gnu.org id=B14461.156605129518750 (code B ref 14461); Sat, 17 Aug 2019 14:15:02 +0000 Original-Received: (at 14461) by debbugs.gnu.org; 17 Aug 2019 14:14:55 +0000 Original-Received: from localhost ([127.0.0.1]:56675 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyzTr-0004sL-D4 for submit@debbugs.gnu.org; Sat, 17 Aug 2019 10:14:55 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:40335) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hyzTp-0004s8-O1 for 14461@debbugs.gnu.org; Sat, 17 Aug 2019 10:14:54 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:42094) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hyzTk-0000mg-IH; Sat, 17 Aug 2019 10:14:48 -0400 Original-Received: from [176.228.60.248] (port=2688 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1hyzTj-0000T1-Ie; Sat, 17 Aug 2019 10:14:48 -0400 In-reply-to: <87r25jucir.fsf@gmx.net> (message from Stephen Berman on Sat, 17 Aug 2019 15:50:20 +0200) 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: 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:165265 Archived-At: > From: Stephen Berman > Cc: Kenichi Handa , cedric.chepied@gmail.com, > 14461@debbugs.gnu.org, larsi@gnus.org > Date: Sat, 17 Aug 2019 15:50:20 +0200 > > Hm, I chose COMBINING ACUTE ACCENT and COMBINING CIRCUMFLEX ACCENT more > or less at random, but I do indeed see the sequence 'aU+0301U+0302' as > two grapheme clusters (also with -Q): 'a' with an acute accent over it > followed by a circumflex. In contrast, the sequences 'aU+0301U+0317' > and 'aU+0302U+0317' are displayed as single grapheme clusters (317 is > COMBINING ACUTE ACCENT BELOW). I also noticed that the seqence > '-U+0301U+0302' is displayed as a dash followed by a single grapheme > cluster of an acute accent and a circumflex; this holds for all > nonalphabetic ASCII characters I tried and for some but not all > non-ASCII alphabetic characters. So there seems to be some > inconsistency in the display of combining characters. Is this in Emacs 27 built with HarfBuzz support? If so, I think this just means that the default font you use doesn't support these combining accents, because on my system I see a single grapheme cluster in both of the above cases, when I select a suitable font. You can tell which font is used for each character by typing "C-u C-x =" on each character/grapheme cluster.