From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#48734: 28.0.50; Performance regression in `string-width`? Date: Sun, 30 May 2021 14:18:44 +0200 Message-ID: <87r1hoza6z.fsf@gnus.org> References: <87a6odmfp6.fsf@teknik.io> <83o8cs4t9m.fsf@gnu.org> <87y2bwk1nj.fsf@teknik.io> <83eedo4k3j.fsf@gnu.org> <87v970jwik.fsf@teknik.io> <835yz04ean.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="22288"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Imran Khan , 48734@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun May 30 14:19:18 2021 Return-path: Envelope-to: geb-bug-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 1lnKPV-0005a6-W9 for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 30 May 2021 14:19:18 +0200 Original-Received: from localhost ([::1]:41026 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lnKPV-0005yh-2U for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 30 May 2021 08:19:17 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:43328) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lnKPG-0005yV-Gr for bug-gnu-emacs@gnu.org; Sun, 30 May 2021 08:19:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:46947) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lnKPG-0004XU-9K for bug-gnu-emacs@gnu.org; Sun, 30 May 2021 08:19:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lnKPG-0002Jk-5l for bug-gnu-emacs@gnu.org; Sun, 30 May 2021 08:19:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 30 May 2021 12:19:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 48734 X-GNU-PR-Package: emacs Original-Received: via spool by 48734-submit@debbugs.gnu.org id=B48734.16223771358893 (code B ref 48734); Sun, 30 May 2021 12:19:02 +0000 Original-Received: (at 48734) by debbugs.gnu.org; 30 May 2021 12:18:55 +0000 Original-Received: from localhost ([127.0.0.1]:58493 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lnKP9-0002JN-8m for submit@debbugs.gnu.org; Sun, 30 May 2021 08:18:55 -0400 Original-Received: from quimby.gnus.org ([95.216.78.240]:48078) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lnKP7-0002JA-Lb for 48734@debbugs.gnu.org; Sun, 30 May 2021 08:18:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=TMsc49848oiGbUFhqIe8sXg710l++iKOvBWhigxAjUU=; b=N3pneSijZnq05LeWFqV8S5w/C2 /9esvVeV6FKILH415pPb42MpWrAa+O9KM9yJweQa6uGE3ALX68t1lcJEOhTzGVP3Lt3v/lKD99XjQ QwALKftUpKrsjGKALKDUMUzt07efW0PB3E/+e8Kh/AuYD1mxk3Apyc9N1q8xGky/PjtM=; Original-Received: from cm-84.212.220.105.getinternet.no ([84.212.220.105] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lnKOy-00022U-GA; Sun, 30 May 2021 14:18:47 +0200 X-Now-Playing: Oval's _Eksploio_: "Eksploio" In-Reply-To: <835yz04ean.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 30 May 2021 15:05:52 +0300") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:207610 Archived-At: Eli Zaretskii writes: > If deft-mode wants to allocate space on display, then they really do > need to use string-width, but then the changes which make them "hang" > are really important, because before that string-width would compute > the result incorrectly when characters are composed on display. string-width has always been approximate (but fast), hasn't it? And to determine the actual display width you've had to use window-text-pixel-size or the like. Perhaps string-width should get an extra parameter to get the new, more accurate computation, and get the old, fast computation without this parameter. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no