From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Daniel Colascione Newsgroups: gmane.emacs.devel Subject: Re: cc-mode fontification feels random Date: Tue, 8 Jun 2021 11:28:41 -0700 Message-ID: <85ae362a-42e0-260b-415c-9522e76db724@dancol.org> References: <86a85d26-75c0-e4a3-e8d3-244c5346dd3a@dancol.org> <83r1hehnz9.fsf@gnu.org> <83lf7mhl3n.fsf@gnu.org> <73ff18bf-66dc-7d7a-a0db-8edc2cdceba8@gmx.at> <83o8cge4lg.fsf@gnu.org> <62e438b5-d27f-1d3c-69c6-11fe29a76d74@dancol.org> <83fsxsdxhu.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6365"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 Cc: rudalics@gmx.at, acm@muc.de, monnier@iro.umontreal.ca, rms@gnu.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Jun 08 20:32:16 2021 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 1lqgWM-0001Qb-E7 for ged-emacs-devel@m.gmane-mx.org; Tue, 08 Jun 2021 20:32:14 +0200 Original-Received: from localhost ([::1]:38968 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lqgWK-0004Oq-Rp for ged-emacs-devel@m.gmane-mx.org; Tue, 08 Jun 2021 14:32:13 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60048) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lqgT1-0001Cx-8H for emacs-devel@gnu.org; Tue, 08 Jun 2021 14:28:47 -0400 Original-Received: from dancol.org ([2600:3c01:e000:3d8::1]:56896) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lqgSy-0001yC-Eg; Tue, 08 Jun 2021 14:28:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dancol.org; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version:Date: Message-ID:From:References:Cc:To:Subject:Sender:Reply-To: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=1eGBqhCPjA9SomgkxXxF8xO+ihJ+JMXowtlYAMJcRW8=; b=q5rwfkB5HZrmTZdltlwA9Re1rj +C3E+CxGoaWxna4EoMf7BY/DdJy3dbvfOcO/70fbLB7yfTSlsYLbtFhOj5YBFtgMmkUyHT94l6YBr Q+k3fhpLuwyyCR29zXpFre2zndzZjtR5Ykh9pH98sfmHAsLvJ2LBmLx4S/eZZBPZ0VAzLu6YdbhJ4 MepM92MVRU5BFfXYltCjnBpA3gjR789LyBUlsNMTW4w56pOm/tWX50ZMHDzWoyjiRbjKTdg32AswT h6JVwXl9oLrm2t73WHQ9nBUg6AbPqRI6BFIdURFYuZKJdqE5AXMRDeseV8JNoYpIAcLgZWZp/YYDI akpcdKyg==; Original-Received: from rrcs-173-196-147-115.west.biz.rr.com ([173.196.147.115]:60120 helo=[10.29.6.40]) by dancol.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1lqgSw-0006rh-25; Tue, 08 Jun 2021 11:28:42 -0700 In-Reply-To: <83fsxsdxhu.fsf@gnu.org> Content-Language: en-US Received-SPF: pass client-ip=2600:3c01:e000:3d8::1; envelope-from=dancol@dancol.org; helo=dancol.org X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, SPF_HELO_PASS=-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:270583 Archived-At: On 6/8/21 11:25 AM, Eli Zaretskii wrote: >> From: Daniel Colascione >> Date: Tue, 8 Jun 2021 11:11:21 -0700 >> Cc: rudalics@gmx.at, emacs-devel@gnu.org, rms@gnu.org, acm@muc.de >> >> The whole point of fontification is to provide visual hints about the >> semantic structure of source code. If cc-mode can't do that reliably, my >> preference would be for it to not do it at all. Fontification of a >> type-using expression shouldn't change if I move the definition of that >> type from one file to another. > I think we agree. Except that for me, it should also not try if it > cannot do it quickly enough, not only reliably enough. > >> IMHO, we should rely on LSP to figure out what symbols are types, and if >> a LSP isn't available, we shouldn't try to guess. > I was talking about what to do (or not to do) with our existing > regexp- and "syntax"-based fontifications. I still remember the days > when CC Mode handled that well enough without being a snail it > frequently is now, and that was on a machine about 10 times slower > than the one I use nowadays. The C language didn't change too much > since then, at least not the flavor I frequently edit. C++ is a much more complex language and a lot more relevant for modern software development.