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: Sun, 06 Jun 2021 16:28:02 -0400 Message-ID: References: <86a85d26-75c0-e4a3-e8d3-244c5346dd3a@dancol.org> <83r1hehnz9.fsf@gnu.org> <83lf7mhl3n.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="32194"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 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 Sun Jun 06 22:29:05 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 1lpzOL-00088R-Mp for ged-emacs-devel@m.gmane-mx.org; Sun, 06 Jun 2021 22:29:05 +0200 Original-Received: from localhost ([::1]:60720 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lpzOK-00077E-OI for ged-emacs-devel@m.gmane-mx.org; Sun, 06 Jun 2021 16:29:04 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:44846) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lpzNP-0006Em-Nr for emacs-devel@gnu.org; Sun, 06 Jun 2021 16:28:07 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:60432) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lpzNN-0002bC-Tk; Sun, 06 Jun 2021 16:28:07 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 8781C1002FC; Sun, 6 Jun 2021 16:28:04 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 2FA2510019F; Sun, 6 Jun 2021 16:28:03 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1623011283; bh=GEdQKcyYsmDSDdcc0jo9g2Qs0PWLzhIYZbblbvcJBWg=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=PgzqvKud7P6nK4XXS+X1H8AyuGLS96EVBYqL/7aUu8/0uEWNZlzIY4MNfcBiiOhGi D/S4m+mPthESCFMYGfww30ZsbbD8//FI9Gx6gK92DHk5oLHe8FM9H4i5cFMApleoqf B+SWWVQlcdPmBKmqtmLEh7uzf4D23AhSHer/xIljn7Vdjn/mwn71lLluvgXxGPwCFM kP9wPfMNdMGCX2FRUfcXZba6lF+BU/Ypgd6iQ758Lzd/Hc+JGKQkF8E0cM9q7LovJF 13VoI3TykWj9ilm08GZ2wbJodvMshMKrFLvzHMbxWJgBdccyB84MGSsDED5gSr7KBQ 7GdHLnYc0PA1Q== Original-Received: from alfajor (69-196-163-239.dsl.teksavvy.com [69.196.163.239]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id EF23C120D79; Sun, 6 Jun 2021 16:28:02 -0400 (EDT) In-Reply-To: <83lf7mhl3n.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 06 Jun 2021 22:03:08 +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:270501 Archived-At: > What exactly are the reasons that we need to scan from BOB? With the > exception of data type declarations, what else requires to go back > farther that the beginning of the defun in which we start fontifying? It all depends on the language. E.g. in ELisp, what looks like a defun might actually be in the middle of a string and there's no reliable way to know if something's in a string other than to parse from BOB. In C the situation is somewhat similar but for comments. Stefan