From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Ligatures Date: Tue, 19 May 2020 16:59:18 +0300 Message-ID: <83lflo81qh.fsf@gnu.org> References: <20200517124125.000013a4@web.de> <97C7EAB7-10AB-4702-ABC8-EB6C1C50ABDB@gnu.org> <20200517165953.000044d2@web.de> <83lflqblp0.fsf@gnu.org> <83ftbybio3.fsf@gnu.org> <83zha69xs2.fsf@gnu.org> <83367x9qeq.fsf@gnu.org> <83y2pp88lw.fsf@gnu.org> <83pnb182ce.fsf@gnu.org> <65807546-ed40-a175-640d-9da7a1548d8a@gmail.com> <83o8qk8xv6.fsf@gnu.org> <26ede471-3881-43e3-1253-6b21658343e9@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="82645"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: =?utf-8?Q?Cl=C3=A9ment?= Pit-Claudel Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue May 19 15:59:48 2020 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 1jb2mZ-000LNf-JH for ged-emacs-devel@m.gmane-mx.org; Tue, 19 May 2020 15:59:47 +0200 Original-Received: from localhost ([::1]:34620 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jb2mY-0002EP-M4 for ged-emacs-devel@m.gmane-mx.org; Tue, 19 May 2020 09:59:46 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36402) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jb2m8-0001pX-UL for emacs-devel@gnu.org; Tue, 19 May 2020 09:59:20 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:51343) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jb2m8-0007cL-94; Tue, 19 May 2020 09:59:20 -0400 Original-Received: from [176.228.60.248] (port=3170 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jb2m7-00051w-8T; Tue, 19 May 2020 09:59:19 -0400 In-Reply-To: <26ede471-3881-43e3-1253-6b21658343e9@gmail.com> (message from =?utf-8?Q?Cl=C3=A9ment?= Pit-Claudel on Mon, 18 May 2020 22:44:27 -0400) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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:250916 Archived-At: > Cc: emacs-devel@gnu.org > From: Clément Pit-Claudel > Date: Mon, 18 May 2020 22:44:27 -0400 > > >> In an earlier thread, you mentioned programming font ligatures — wouldn't it be very common to deconstruct such ligatures, like → into ->? > > > > No, I don't think so. Why would this be common? > > I thought it would be the default. Emacs shows →, and you can put the point either before (|→), in the middle (-|>), or after (→|). Doesn't sound as a useful default to me. It could be an optional feature, though. > Here's a fairly common case: when writing html or XML, you may type <, then >, then press C-b and type the tag name; or you may use < and a paredit-like setup that inserts the > automatically. If the font has a ligature for <> and you can't put the point in the middle, this breaks. Same for || — the notation |x| { … } is used for lambdas in some languages; if you type || then try to move the point back inside the composed || glyph it won't work. Sounds like a bug or misfeature that needs a solution, not necessarily the one that's been proposed here. For example, how about a special insert command that would disable ligation with the character it inserts?