From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: cc-mode fontification feels random Date: Tue, 08 Jun 2021 12:36:40 -0400 Message-ID: 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> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="10480"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: rms@gnu.org, rudalics@gmx.at, acm@muc.de, dancol@dancol.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 18:37:32 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 1lqejL-0002X2-VX for ged-emacs-devel@m.gmane-mx.org; Tue, 08 Jun 2021 18:37:32 +0200 Original-Received: from localhost ([::1]:45014 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lqejK-0000fd-V6 for ged-emacs-devel@m.gmane-mx.org; Tue, 08 Jun 2021 12:37:30 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35728) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lqeif-0008H8-Mc for emacs-devel@gnu.org; Tue, 08 Jun 2021 12:36:49 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:23687) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lqeic-0005ou-Eu; Tue, 08 Jun 2021 12:36:48 -0400 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 681E9806F0; Tue, 8 Jun 2021 12:36:43 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id E1E5580533; Tue, 8 Jun 2021 12:36:41 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1623170201; bh=bzxZ8BVMxCbJqcQhBPKkJHhk1EQabRF/yUuS93BOQ8E=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=Weh8KG1ngx5fS0au9+gSUHaJkwVIPFozOMxtloDjF0ahpTUvSmHGSwGnXuiHUKWp8 zQH+CInLgId4STWAjLPkO5NmzDXFt4bjyzp/Q7QUqWe2Jcu0Pmq1w9HjLZPRczJHLg XDKAD2248FffZpdUK9SpK2sLXVryzepxMIAUOy33xM3FtRhqQQ/TCJg8oplKU2aT+v jNUCiGdgjy5UwJ+65kvH9Lhig3jOvtCSEjTFPzs4lSKVte4vKcV8FYTyptqxwoKukM 54mHl3ogiARO1LkRFt0UCzxAdGMikDjM/+0qT9TVDzzAxBsgVsmS/91CWbPMR8pLPL vBxCLSi9+KC8Q== Original-Received: from alfajor (69-196-163-239.dsl.teksavvy.com [69.196.163.239]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 95691120D68; Tue, 8 Jun 2021 12:36:41 -0400 (EDT) In-Reply-To: <83o8cge4lg.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 08 Jun 2021 18:52:27 +0300") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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:270578 Archived-At: >> All I meant is that given the increase of performance of CPUs (until the >> beginning of this century) and a non-corresponding increase in file size >> and complexity of language syntax, programmers nowadays prefer correct >> behavior over fast behavior, since the correct behavior is fast enough >> anyway to be bearable. > Not in CC Mode, not IMO anyway. But perhaps you don't consider what > CC Mode does to be "correct behavior". My comment was about using hacks like `open-paren-in-column-0-is-defun-start` to avoid scanning from BOB in `syntax-ppss/propertize`. > And then, of course, there's a question "what is correct"? When I see > something like > > static foo_t __attribute__((bar)) myvar; > > I'm not sure I'd care if everything before "myvar" would be in the > same face and "myvar" in another face. IOW, it isn't necessarily > important to me that fontification knows that foo_t is a type and not > a keyword. So searching the file (and perhaps other files) for the > definition of foo_t isn't important -- for the purposes of > fontification. FWIW, my `font-lock-type-face` is customized to: '(font-lock-type-face ((t))) so I'll let you guess my opinion on this ;-) Stefan