From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: emacs rendering comparisson between emacs23 and emacs26.3 Date: Sun, 05 Apr 2020 10:10:06 -0400 Message-ID: References: <834ku43c61.fsf@gnu.org> <83k12zz6ds.fsf@gnu.org> <054393f3-3873-ab6e-b325-0eca354d8838@gmx.at> <20200403174757.GA8266@ACM> <20200405111623.GB5049@ACM> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="96282"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: rudalics@gmx.at, eliz@gnu.org, rrandresf@gmail.com, Richard Stallman , emacs-devel@gnu.org To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Apr 05 16:11:02 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 1jL5zK-000OxE-7g for ged-emacs-devel@m.gmane-mx.org; Sun, 05 Apr 2020 16:11:02 +0200 Original-Received: from localhost ([::1]:48248 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jL5zJ-0004qW-CC for ged-emacs-devel@m.gmane-mx.org; Sun, 05 Apr 2020 10:11:01 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:59358) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jL5yc-0004Lo-Mg for emacs-devel@gnu.org; Sun, 05 Apr 2020 10:10:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jL5yb-0000Cx-FO for emacs-devel@gnu.org; Sun, 05 Apr 2020 10:10:18 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:45064) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jL5yZ-00009q-KZ; Sun, 05 Apr 2020 10:10:15 -0400 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 7EAA280921; Sun, 5 Apr 2020 10:10:14 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 6DC3180D52; Sun, 5 Apr 2020 10:10:08 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1586095808; bh=+irCtLbgA1HoeLUr79X8M8HHKNJF2HSRgn6fU4RcfJ8=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=W2x26CQMjmDdmui8YexEugc0x4125S1N6oSdc6btcZIzONTeft7XkzDyGTm0+QAs/ VslmZt/dt9+S1gE7VtUHplzjxQmJcCrrM7ajzbNnkX6++CcZO+T+besB1ByKtF+xRy h5+IujoFx5W28SigQ6D+ed/wrT/CQ1lUc5x1s4T9kuhDna2e6lq41ZlBVquk4Xr5Wb qKUENqwTXm0bOCQQL1aqBam92//Wb7g57/JOYMzSqEqN0fTT2z7uYJ56klz32sAbUl uvezZBEVB8YghHnUZqmfrtut8XvOm0+3D6QImPO2HwfqDUb97tybEvScWFFi0igeZf w+kuo4iEuQ8vg== Original-Received: from alfajor (unknown [104.247.241.114]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 17F97120376; Sun, 5 Apr 2020 10:10:08 -0400 (EDT) In-Reply-To: <20200405111623.GB5049@ACM> (Alan Mackenzie's message of "Sun, 5 Apr 2020 11:16:23 +0000") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 132.204.25.50 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:246457 Archived-At: > I think I meant that, given their validity, it is up to us as Emacs > developers to arrange that they don't cause trouble, rather than > expecting our users to insert these obtrusive backslashes. Indeed. And the reverse is true as well: while it might be OK for a user to put his open-parens in column 0 to help Emacs be more responsive, it's not OK for Emacs to be too slow on files where there are no such open-parens in column 0. So Emacs has to use some other mechanism anyway to avoid the slowdown in such files. Once you have this mechanism in place, the "open-parens in column 0" heuristic is just not worth the trouble any more. Stefan