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: Sun, 22 Nov 2020 10:36:02 +0200 Organization: LINKOV.NET Message-ID: <87sg914wlp.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> 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="28950"; 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 Sun Nov 22 09:51:00 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 1kgl5I-0007Px-DQ for ged-emacs-devel@m.gmane-mx.org; Sun, 22 Nov 2020 09:51:00 +0100 Original-Received: from localhost ([::1]:49728 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kgl5H-0004b4-GL for ged-emacs-devel@m.gmane-mx.org; Sun, 22 Nov 2020 03:50:59 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39520) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kgl4C-0003c7-6m for emacs-devel@gnu.org; Sun, 22 Nov 2020 03:49:52 -0500 Original-Received: from relay10.mail.gandi.net ([217.70.178.230]:53957) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kgl4A-0002OF-Ej; Sun, 22 Nov 2020 03:49:51 -0500 Original-Received: from mail.gandi.net (m91-129-97-46.cust.tele2.ee [91.129.97.46]) (Authenticated sender: juri@linkov.net) by relay10.mail.gandi.net (Postfix) with ESMTPSA id 1105824000B; Sun, 22 Nov 2020 08:49:38 +0000 (UTC) In-Reply-To: <83sg92xdz6.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 22 Nov 2020 05:33:17 +0200") Received-SPF: pass client-ip=217.70.178.230; envelope-from=juri@linkov.net; helo=relay10.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_H2=-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:259601 Archived-At: > The result of char-width can only ever be 0, 1, or 2. On GUI frames, > it doesn't always return the exact value, because characters can be > wider than 1, but narrower than 2. But no character should be wider > than 2 columns. Which characters did you see that required the width > of 3 or 4? I tried to set tab-width to 4, and the first character that doesn't fit to the 4-column tab stop is: ഐ MALAYALAM LETTER AI But (char-width ?ഐ) returns 1. Some examples of more 4-column wide characters where char-width returns 1: ை TAMIL VOWEL SIGN AI ෛ SINHALA VOWEL SIGN KOMBU DEKA ꧅ JAVANESE PADA LUHUR 𒐫 CUNEIFORM NUMERIC SIGN NINE SHAR2 Maybe there is another function that could return the real number of tab columns a character takes on the screen?