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.devel Subject: Re: scratch/emoji vs emacs that maybe =?utf-8?Q?can=CA=BCt?= display emojis Date: Fri, 05 Nov 2021 13:57:08 +0200 Message-ID: <837ddmerxn.fsf@gnu.org> References: <87y263ko4i.fsf@gmail.com> 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="15519"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Robert Pluim Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Nov 05 12:58:05 2021 Return-path: Envelope-to: ged-emacs-devel@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 1mixrA-0003mL-Tz for ged-emacs-devel@m.gmane-mx.org; Fri, 05 Nov 2021 12:58:05 +0100 Original-Received: from localhost ([::1]:44398 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mixr9-0003eJ-1c for ged-emacs-devel@m.gmane-mx.org; Fri, 05 Nov 2021 07:58:03 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48548) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mixqZ-0002zN-H9 for emacs-devel@gnu.org; Fri, 05 Nov 2021 07:57:27 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:42944) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mixqZ-0003RE-8D; Fri, 05 Nov 2021 07:57:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=qReptSo+jY8oSu56NTXQt5nIkox1LFBR3VC3OF5Dj6I=; b=DZ02Y6Sn9lMkHOSLmO1u sMjQg10x8w9IV1iYXX8oINY6sNPgjuFoAYc1egExp4F5/CY1QBveW5tgayOqmN8my5UwIxlRlbX7D +pmy/4YaGlcPhJtXNFintV23Nw3Df12HDjiYZ5rIivuaunneDXqgLg/1FO9O1F26T3cEvuIs/sSxg crWvYBAuN01txWwgzznsmN7jP/JxooaQqSRAgpLDwKdKYWJrA5VNz7sdglCsY4xkotsHVkSWfbOoF 0Szs+wcIwLfa4ZOpsE64/kYNthKeUbuL+NCIH17bmDRT4jvzbz66ch+802vZMDVk3o8XUn9BxR2gP Zb4XAmENrnSYmQ==; Original-Received: from [87.69.77.57] (port=4168 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 1mixqY-0004K7-QM; Fri, 05 Nov 2021 07:57:27 -0400 In-Reply-To: <87y263ko4i.fsf@gmail.com> (message from Robert Pluim on Fri, 05 Nov 2021 09:22:53 +0100) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:278759 Archived-At: > From: Robert Pluim > Date: Fri, 05 Nov 2021 09:22:53 +0100 > > I have a terminal emulator that can display emojis correctly. Which one? Does it behave correctly wrt the display width of the displayed Emoji? That is, does string-width agree with the number of columns the displayed Emoji takes on the screen? > On macos, in gui frames, I see similar issues until I cherry-pick > e3171e7e86, which says to me thereʼs an issue with the 'can I display > this codepoint' code. Indeed, how can we know that a particular TTY frame can display Emoji? For a single character, we have a more-or-less reliable method, but for a composable sequence?