From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stephen Leake Newsgroups: gmane.emacs.devel Subject: Re: cc-mode fontification feels random Date: Sun, 11 Jul 2021 11:12:04 -0700 Message-ID: <86mtqsoh3f.fsf@stephe-leake.org> References: <83o8cge4lg.fsf@gnu.org> <62e438b5-d27f-1d3c-69c6-11fe29a76d74@dancol.org> <83fsxsdxhu.fsf@gnu.org> <179f22a44d8.2816.cc5b3318d7e9908e2c46732289705cb0@dancol.org> <179f38c0370.2816.cc5b3318d7e9908e2c46732289705cb0@dancol.org> <236e62c2-be9b-b26d-8cd0-4b5a1a86e19a@dancol.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="13758"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (windows-nt) Cc: rms@gnu.org, emacs-devel@gnu.org, rudalics@gmx.at, monnier@iro.umontreal.ca, Alan Mackenzie , Eli Zaretskii To: Daniel Colascione Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Jul 11 20:13:04 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 1m2dws-0003NW-MK for ged-emacs-devel@m.gmane-mx.org; Sun, 11 Jul 2021 20:13:02 +0200 Original-Received: from localhost ([::1]:53284 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m2dwq-0003Ey-UO for ged-emacs-devel@m.gmane-mx.org; Sun, 11 Jul 2021 14:13:00 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36062) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m2dw7-0002Yr-GL for emacs-devel@gnu.org; Sun, 11 Jul 2021 14:12:15 -0400 Original-Received: from gateway36.websitewelcome.com ([192.185.198.13]:20428) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m2dw5-0006HJ-Ov for emacs-devel@gnu.org; Sun, 11 Jul 2021 14:12:15 -0400 Original-Received: from cm13.websitewelcome.com (cm13.websitewelcome.com [100.42.49.6]) by gateway36.websitewelcome.com (Postfix) with ESMTP id 57F4C400EE5D1 for ; Sun, 11 Jul 2021 13:12:09 -0500 (CDT) Original-Received: from host2007.hostmonster.com ([67.20.76.71]) by cmsmtp with SMTP id 2dvym5v23rJtZ2dvzm0iKP; Sun, 11 Jul 2021 13:12:07 -0500 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=stephe-leake.org; s=default; h=Content-Transfer-Encoding:Content-Type: MIME-Version:Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From: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=9VOkkidgp+wosZ0m8FOmQ49DwSB3WEgC0ihdr33EWyw=; b=VCVA5FtKqOfUv53gzHaDpvDBTH 9VtquMKf+FWpaTlfTQrkdtta6BkTJFt/LnKBBuqZjZAaPjXxRQOVJRj5eg+7Fs5SdoIPe9ytrTue4 ur1Q5zp+szKhkNBeVAID3xFvJV+gPY6g58Cibe5UV1gg6BsTa3lJ9tRYcZA/sPNOxhGGtBpSCPUke kRd3MaC3nu93iWrltx00f4zfQbVicBqnGRqs2ymAhkjvGtTR/akYP6f3aiwfrn9JkelcT+qv1zWRs 29rugAHKEyqfVQeBoNYeVCBp2tr/zTObo0cj5W1WJ4UFw+8ojJzjAp6aku6ntsprdXkz8cYkwAtVk lAFNuI5Q==; Original-Received: from [76.77.182.20] (port=56280 helo=Takver4) by host2007.hostmonster.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1m2dvy-0044TN-FX; Sun, 11 Jul 2021 12:12:06 -0600 In-Reply-To: <236e62c2-be9b-b26d-8cd0-4b5a1a86e19a@dancol.org> (Daniel Colascione's message of "Fri, 9 Jul 2021 07:06:03 -0700") X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - host2007.hostmonster.com X-AntiAbuse: Original Domain - gnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - stephe-leake.org X-BWhitelist: no X-Source-IP: 76.77.182.20 X-Source-L: No X-Exim-ID: 1m2dvy-0044TN-FX X-Source-Sender: (Takver4) [76.77.182.20]:56280 X-Source-Auth: stephen_leake@stephe-leake.org X-Email-Count: 7 X-Source-Cap: c3RlcGhlbGU7c3RlcGhlbGU7aG9zdDIwMDcuaG9zdG1vbnN0ZXIuY29t X-Local-Domain: yes Received-SPF: neutral client-ip=192.185.198.13; envelope-from=stephen_leake@stephe-leake.org; helo=gateway36.websitewelcome.com X-Spam_score_int: -8 X-Spam_score: -0.9 X-Spam_bar: / X-Spam_report: (-0.9 / 5.0 requ) BAYES_00=-1.9, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_NEUTRAL=0.779 autolearn=no 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:271178 Archived-At: Daniel Colascione writes: > ... cc-mode is still very inconsistent in > fontification though. Take a look at the attached screenshot, which is > of this program: > > void > deallocate_one_arg(void* const ptr_to_arg, > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 MethodProgramPc& pc); > > void > deallocate_one_arg(void* const ptr_to_arg, > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 MethodProgramPc& pc); > > I'm confused about why "MethodProgramPc" is fontified as a type in the > first prototype but not the second. I still wish we had a > general-purpose mechanism for ensuring that problems like this didn't > happen. The ELPA package wisi provides a parser-based fontification engine, which makes things like this more consistent. It is currently used for ada-mode. Note that syntax errors in the source can cause bad fontification, but the wisi parser has very robust error-correction, so it usually does a good job even with syntax errors. However, parsing C and C++ is complicated by macros; wisi makes no provision for that. Another option is an LSP based system via the EPLA package eglot; that delegates fontification to the language server. I don't know how well the C/C++ language servers perform for this. --=20 -- Stephe