From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Robert Pluim Newsgroups: gmane.emacs.bugs Subject: bug#39799: 28.0.50; Most emoji sequences =?UTF-8?Q?don=E2=80=99t?= render correctly Date: Fri, 28 Feb 2020 22:47:36 +0100 Message-ID: References: <83lfongp4p.fsf@gnu.org> <835zfrglu5.fsf@gnu.org> <83wo86g8pg.fsf@gnu.org> <83k146g46x.fsf@gnu.org> <83imjqg1iv.fsf@gnu.org> <837e06foof.fsf@gnu.org> <835zfqfohj.fsf@gnu.org> <831rqefmsr.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="50836"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 39799@debbugs.gnu.org, mfabian@redhat.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Feb 28 22:48:22 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 1j7nUc-000D8e-FE for geb-bug-gnu-emacs@m.gmane-mx.org; 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Fri, 28 Feb 2020 13:47:38 -0800 (PST) Original-Received: from rpluim-mac ([2a01:e34:ecfc:a860:4a8:8cd8:5d97:6a05]) by smtp.gmail.com with ESMTPSA id 133sm4276502wmd.5.2020.02.28.13.47.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Feb 2020 13:47:37 -0800 (PST) In-Reply-To: <831rqefmsr.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 28 Feb 2020 23:02:12 +0200") 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:176620 Archived-At: >>>>> On Fri, 28 Feb 2020 23:02:12 +0200, Eli Zaretskii said: >> Date: Fri, 28 Feb 2020 22:25:44 +0200 >> From: Eli Zaretskii >> Cc: 39799@debbugs.gnu.org >>=20 >> Hmm... it's possible I was confused, and the functions I mentioned a= re >> unrelated to variation selectors. To see if that's so, try to >> configure composition-function-table to display such sequences as >> composed characters, and see what happens when you use a proper font >> (e.g., the one with which Gedit displays the variations). Eli> Looking into this some more reveals that we already have Eli> composition-function-table set up for variation selectors, see the= end Eli> of lisp/language/japanese.el. Not sure why it's in japanese.el, b= ut Eli> the code doesn't seem to be specific to Japanese characters, unless Eli> I'm missing something. So some debugging is required to understand Eli> why we don't display sequences with variation selectors as intende= d. Eli> Maybe DejaVu Sans doesn't support that? What if you try Eli> emacs -Q -fn Noto Color Emoji" Eli> does Emacs built with HarfBuzz then display the variation sequence= s as Eli> expected? -fn "Noto Color Emoji" doesn=CA=BCt change the default font for me for some reason, but if I change the font after startup then those sequences display correctly. (char-table-range composition-function-table #xFE0F) =3D> ([".." 1 compose-gstring-for-variation-glyph]) and #xFE0F is always composable according to composite.c, so I don=CA=BCt understand why composing only works with Noto Color Emoji. Or does the font need specific support for it? Robert