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.help Subject: Re: Help with unicode diacritics Date: Mon, 28 Dec 2020 16:34:12 +0200 Message-ID: <83y2hij8yj.fsf@gnu.org> References: <87eejaxvbb.fsf@cam.ac.uk> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3091"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Mon Dec 28 15:34:57 2020 Return-path: Envelope-to: geh-help-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 1kttbq-0000YT-H5 for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 28 Dec 2020 15:34:54 +0100 Original-Received: from localhost ([::1]:38190 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kttbp-0002vl-Iv for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 28 Dec 2020 09:34:53 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42492) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kttbJ-0002vU-5N for help-gnu-emacs@gnu.org; Mon, 28 Dec 2020 09:34:21 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:41104) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kttbI-0006cr-TW for help-gnu-emacs@gnu.org; Mon, 28 Dec 2020 09:34:20 -0500 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:4806 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kttbI-0000gr-88 for help-gnu-emacs@gnu.org; Mon, 28 Dec 2020 09:34:20 -0500 In-Reply-To: <87eejaxvbb.fsf@cam.ac.uk> (message from Stephen Eglen on Mon, 28 Dec 2020 07:07:36 +0000) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:126854 Archived-At: > From: Stephen Eglen > Date: Mon, 28 Dec 2020 07:07:36 +0000 > > I'm on manjaro arch, with Emacs 27.1. I wrote the following snippet to > demonstrate the problem. See the line of a character a with various > diacritics under the call to (code) to demonstrate the problem. Out of > the three fonts I tested, Monaco does the best, but ideally I'd like to > use JuliaMono. If I view this same file in xfce4-terminal, using > JuliaMono, all the diacritics appear fine. This makes me suspect Emacs. > On the page: https://damtp.cam.ac.uk/user/sje30/temp/accents.png is what > I see (using EXWM, with emacs rendering on left and xfce-terminal on the > right). > > How might I debug further? You need to use a font that has glyphs both for a (every font will fulfill that requirement) and the diacritics. Emacs can only compose characters if their glyphs come from the same font. > Alternatively, does anyone recommend a monospace font with good Unicode > performance in Emacs? You are not looking for a font with good Unicode coverage, you are looking for a font with good coverage of Latin diacritics.