From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Using incremental parsing in Emacs Date: Fri, 03 Jan 2020 22:05:32 +0200 Message-ID: <83tv5cgvar.fsf@gnu.org> References: <83blrkj1o1.fsf@gnu.org> <86zhf4gwhl.fsf@stephe-leake.org> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="65322"; mail-complaints-to="usenet@blaine.gmane.org" Cc: emacs-devel@gnu.org To: Stephen Leake Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Jan 03 21:06:45 2020 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1inTDZ-000Gof-9a for ged-emacs-devel@m.gmane.org; Fri, 03 Jan 2020 21:06:45 +0100 Original-Received: from localhost ([::1]:56488 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1inTDY-00048W-4n for ged-emacs-devel@m.gmane.org; Fri, 03 Jan 2020 15:06:44 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49999) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1inTD1-00038R-2d for emacs-devel@gnu.org; Fri, 03 Jan 2020 15:06:11 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:37809) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1inTCy-0003E2-QI; Fri, 03 Jan 2020 15:06:08 -0500 Original-Received: from [176.228.60.248] (port=3330 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1inTCP-00013q-Ab; Fri, 03 Jan 2020 15:05:49 -0500 In-reply-to: <86zhf4gwhl.fsf@stephe-leake.org> (message from Stephen Leake on Fri, 03 Jan 2020 11:39:50 -0800) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:243899 Archived-At: > From: Stephen Leake > Date: Fri, 03 Jan 2020 11:39:50 -0800 > > Whether the language server is implemented as an external process, or as > a loadable module, is an implementation detail. That detail can be very important, though. E.g., direct access to buffer text is not possible from external programs, and likely will not be possible, at least not conveniently so, from modules. So I still think we should first consider how the interfaces supporting the various features should look, and only after that look around for packages that perhaps are already doing that. In general, with all due respect, I don't expect the existing packages to teach us TRT, because they are doing stuff in Lisp alone, and that is inherently limited and likely sub-optimal. But that's just MO; I started this thread to maybe inspire someone to have a second look on the related features and propose ways of improving what we do today, both feature-wise and speed-wise, as I see quite a few complaints about lack of features and slowness in stuff like font-lock. If people are happy with what we have, it's fine with me, even if I disagree with the approaches I see out there.