From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.devel Subject: Re: on helm substantial differences Date: Wed, 25 Nov 2020 11:10:05 +0200 Organization: LINKOV.NET Message-ID: <87r1ohepvu.fsf@mail.linkov.net> References: <87wnymda5g.fsf@mail.linkov.net> <87ima5he8j.fsf@mail.linkov.net> <87mtzfzt9a.fsf@mail.linkov.net> <87lfezd8r0.fsf@mail.linkov.net> <87k0uj58ub.fsf@mail.linkov.net> <87lfey28us.fsf@tcd.ie> <87ft56h6sr.fsf@mail.linkov.net> <87y2iybe27.fsf@mail.linkov.net> <873614ido7.fsf@mail.linkov.net> <83tutkz1ea.fsf@gnu.org> <83sg94z0ku.fsf@gnu.org> <87zh3aqxa7.fsf@mail.linkov.net> <83sg92xdz6.fsf@gnu.org> <87sg914wlp.fsf@mail.linkov.net> <83lfetxvuv.fsf@gnu.org> <87blfp2luy.fsf@mail.linkov.net> <83im9wwyae.fsf@gnu.org> 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="33824"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (x86_64-pc-linux-gnu) Cc: spacibba@aol.com, bugs@gnu.support, andreyk.mad@gmail.com, emacs-devel@gnu.org, contovob@tcd.ie, rudalics@gmx.at, monnier@iro.umontreal.ca, ghe@sdf.org, drew.adams@oracle.com To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Nov 25 10:44:38 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 1khrLq-0008hM-DM for ged-emacs-devel@m.gmane-mx.org; Wed, 25 Nov 2020 10:44:38 +0100 Original-Received: from localhost ([::1]:49124 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1khrLp-000404-Fh for ged-emacs-devel@m.gmane-mx.org; Wed, 25 Nov 2020 04:44:37 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:34856) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1khrKq-0003Zb-V0 for emacs-devel@gnu.org; Wed, 25 Nov 2020 04:43:36 -0500 Original-Received: from relay12.mail.gandi.net ([217.70.178.232]:59945) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1khrKo-0002WE-VR; Wed, 25 Nov 2020 04:43:36 -0500 Original-Received: from mail.gandi.net (m91-129-99-98.cust.tele2.ee [91.129.99.98]) (Authenticated sender: juri@linkov.net) by relay12.mail.gandi.net (Postfix) with ESMTPSA id 3D4DF200002; Wed, 25 Nov 2020 09:43:25 +0000 (UTC) In-Reply-To: <83im9wwyae.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 23 Nov 2020 05:24:25 +0200") Received-SPF: pass client-ip=217.70.178.232; envelope-from=juri@linkov.net; helo=relay12.mail.gandi.net X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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:259776 Archived-At: >> > There is: font-get-glyphs. But I'd recommend to just use a TAB of a >> > suitable width instead of dealing with the complexity that >> > font-get-glyphs requires. >> >> I can't find a suitable width for TAB: 5 makes a too wide gap between >> a character and its name, and with 4 some characters are misaligned. > > Then I think we should just use 5. tab-width=5 doesn't help to align characters in the second column when completions are displayed in two columns. To align the second column, 'completion--insert-strings' inserts " \t" with `(display (space :align-to ,column)). So when completions use \t to separate a character from its name, then the two-column layout schematically looks like this: character1 \t name1 \t with :align-to character2 \t name2 And tab-width doesn't align properly \t between character2 and name2. >> But despite the complexity of font-get-glyphs, is it reasonably fast? > > I cannot answer that, you will have to try and see. Whether the speed > is reasonable depends on what the rest of the application does. It seems font-get-glyphs can't be used because on wide characters it returns nil: (font-get-glyphs (font-at (point)) 0 1 "𒐫") => [nil]