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#50865: 28.0.50; Emoji with emoji modifier in Linux console garbles emacs display Date: Fri, 02 Sep 2022 15:59:48 +0300 Message-ID: <83fshaorsr.fsf@gnu.org> References: <87y27cdglm.fsf@sange.fi> <83czooeulj.fsf@gnu.org> <87v92gddcg.fsf@sange.fi> <83bl48eoqk.fsf@gnu.org> <87sfxkd976.fsf@sange.fi> <8335pkeivj.fsf@gnu.org> <831r53d764.fsf@gnu.org> <87v92d564s.fsf@sange.fi> <837det6ida.fsf@gnu.org> <83o884694k.fsf@gnu.org> <87k0is68cx.fsf@sange.fi> <83ee9067oy.fsf@gnu.org> <87v8q6ugfp.fsf@gnus.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="27364"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 50865@debbugs.gnu.org, kaura.dev@sange.fi To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Sep 02 15:01:06 2022 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 1oU6ID-0006vW-FA for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 02 Sep 2022 15:01:05 +0200 Original-Received: from localhost ([::1]:40764 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oU6IC-0004y5-FM for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 02 Sep 2022 09:01:04 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40232) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oU6HD-0004xo-2J for bug-gnu-emacs@gnu.org; Fri, 02 Sep 2022 09:00:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55518) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oU6HC-0002CF-Oy for bug-gnu-emacs@gnu.org; Fri, 02 Sep 2022 09:00:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oU6HC-0001YK-KV for bug-gnu-emacs@gnu.org; Fri, 02 Sep 2022 09:00:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 02 Sep 2022 13:00:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 50865 X-GNU-PR-Package: emacs Original-Received: via spool by 50865-submit@debbugs.gnu.org id=B50865.16621235675891 (code B ref 50865); Fri, 02 Sep 2022 13:00:02 +0000 Original-Received: (at 50865) by debbugs.gnu.org; 2 Sep 2022 12:59:27 +0000 Original-Received: from localhost ([127.0.0.1]:45267 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oU6Gc-0001Wx-RE for submit@debbugs.gnu.org; Fri, 02 Sep 2022 08:59:27 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:40508) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oU6Ga-0001Wj-Rw for 50865@debbugs.gnu.org; Fri, 02 Sep 2022 08:59:25 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:57422) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oU6GV-000247-0K; Fri, 02 Sep 2022 08:59:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=RLRTVehbXUQKpGLQeq+nRV/BhJsesPRGWKzMyy09IHE=; b=pVUXUh/LwBPX l9KqN6mhg5+sw73AwjAHBT27odEplSe1AELc2t2cp6TKkcFrf2GJB/efeRbRtmsVp/5gAgyL6oXRd d4HQRk6qIc2vWFl3gBwi1SLXd3behNVs1T40DpI8BfjZju91ZMZC1URfN7+AsxD0iVEKX/NrXkJWm MNigJgOpawHoO7tYsnzUedYrD89Gz0sXiNUmxbaLaUMxGosnuD8CJxEg9LOlXhDv4G0EJvZ8pgjjl OxpD5fFzZO9wOJ0hxOMtbvFUpIEYzsC3xQDOvrDtplzKj59JVH4s3eSydt8wJM9REj9HAOMbG3Ub8 7UH+ELy9uBZKdbpRz/6Ulg==; Original-Received: from [87.69.77.57] (port=2316 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oU6GU-0000mS-G0; Fri, 02 Sep 2022 08:59:18 -0400 In-Reply-To: <87v8q6ugfp.fsf@gnus.org> (message from Lars Ingebrigtsen on Fri, 02 Sep 2022 14:08:42 +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:241339 Archived-At: > From: Lars Ingebrigtsen > Cc: Aura Kelloniemi , 50865@debbugs.gnu.org > Date: Fri, 02 Sep 2022 14:08:42 +0200 > > I only lightly skimmed this thread, but there's been some work done in > this area (displaying non-displayble characters on the console) over the > last week, and I wonder whether that's fixed this issue, too? Not really, no. What was improved was the fallback display via the extra-slot of glyphless-char-display. Nothing was done to somehow make the Linux console display correctly characters from latest versions of Unicode, which it evidently doesn't support well. I think the best solution for the Linux console's problems, short of using fbterm or something similar, is to set up the standard display table to show unsupported characters as U+FFFD replacements, perhaps augmented by latin1-display-ucs-per-lynx. Unfortunately, this requires customization by users, since each one of them wants to see certain characters in legible form, and doesn't care about the others. Bottom line: the Linux console is simply unsuitable for showing multi-lingual text, let alone Emoji sequences, as users expect nowadays.