From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail
From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: cc-mode fontification feels random
Date: Thu, 10 Jun 2021 10:21:17 +0300
Message-ID: <83bl8echhu.fsf@gnu.org>
References: <73ff18bf-66dc-7d7a-a0db-8edc2cdceba8@gmx.at>
 <jwvk0n5om1s.fsf-monnier+emacs@gnu.org>
 <E1lqSvR-0002EU-9m@fencepost.gnu.org>
 <jwvpmwwl6qo.fsf-monnier+emacs@gnu.org> <83o8cge4lg.fsf@gnu.org>
 <jwv5yyogvyj.fsf-monnier+emacs@gnu.org>
 <62e438b5-d27f-1d3c-69c6-11fe29a76d74@dancol.org>
 <83fsxsdxhu.fsf@gnu.org> <YMEHAXAm1UOuWRP2@ACM>
 <179f22a44d8.2816.cc5b3318d7e9908e2c46732289705cb0@dancol.org>
 <YMEiikHOe1rBV7o9@ACM> <jwvczsubx6f.fsf-monnier+emacs@gnu.org>
 <179f4b9f450.2816.cc5b3318d7e9908e2c46732289705cb0@dancol.org>
Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214";
	logging-data="14077"; mail-complaints-to="usenet@ciao.gmane.io"
Cc: acm@muc.de, emacs-devel@gnu.org, monnier@iro.umontreal.ca, rms@gnu.org,
 rudalics@gmx.at
To: Daniel Colascione <dancol@dancol.org>
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Jun 10 09:22:45 2021
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>
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 <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>)
	id 1lrF1X-0003Tc-JL
	for ged-emacs-devel@m.gmane-mx.org; Thu, 10 Jun 2021 09:22:43 +0200
Original-Received: from localhost ([::1]:46958 helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>)
	id 1lrF1W-0006jh-Iy
	for ged-emacs-devel@m.gmane-mx.org; Thu, 10 Jun 2021 03:22:42 -0400
Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:34742)
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>) id 1lrF0T-0005tX-Na
 for emacs-devel@gnu.org; Thu, 10 Jun 2021 03:21:37 -0400
Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:39216)
 by eggs.gnu.org with esmtp (Exim 4.90_1)
 (envelope-from <eliz@gnu.org>)
 id 1lrF0S-0006V7-62; Thu, 10 Jun 2021 03:21:36 -0400
Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:1859
 helo=home-c4e4a596f7)
 by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>)
 id 1lrF0M-00048f-2h; Thu, 10 Jun 2021 03:21:30 -0400
In-Reply-To: <179f4b9f450.2816.cc5b3318d7e9908e2c46732289705cb0@dancol.org>
 (message from Daniel Colascione on Thu, 10 Jun 2021 00:01:38 -0700)
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-devel>,
 <mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-devel>,
 <mailto:emacs-devel-request@gnu.org?subject=subscribe>
Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org
Original-Sender: "Emacs-devel"
 <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>
Xref: news.gmane.io gmane.emacs.devel:270634
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/270634>

> From: Daniel Colascione <dancol@dancol.org>
> Date: Thu, 10 Jun 2021 00:01:38 -0700
> Cc: rudalics@gmx.at, Eli Zaretskii <eliz@gnu.org>, rms@gnu.org,
>  emacs-devel@gnu.org
> 
> The model I've had in mind for dealing with parse ambiguity is an 
> incremental GLR parser generating a parse forest, pruning the forest by 
> constraint solving on ad-hoc language specific constraints, then picking 
> one of the remaining parse trees incrementally to fontify.

I'm not an expert in this area: is this different from what
tree-sitter does?  If so, what are the main differences?