From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Stephen Leake Newsgroups: gmane.emacs.devel Subject: Re: Using incremental parsing in Emacs Date: Fri, 03 Jan 2020 15:53:45 -0800 Message-ID: <86v9psgkqe.fsf@stephe-leake.org> References: <83blrkj1o1.fsf@gnu.org> <86zhf4gwhl.fsf@stephe-leake.org> <83tv5cgvar.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="221351"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (windows-nt) To: emacs-devel Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jan 04 00:54:03 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 1inWlW-000vQ3-Ug for ged-emacs-devel@m.gmane.org; Sat, 04 Jan 2020 00:54:03 +0100 Original-Received: from localhost ([::1]:58026 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1inWlV-0004ux-Fb for ged-emacs-devel@m.gmane.org; Fri, 03 Jan 2020 18:54:01 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46560) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1inWlO-0004ue-HH for emacs-devel@gnu.org; Fri, 03 Jan 2020 18:53:55 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1inWlM-0001bF-SY for emacs-devel@gnu.org; Fri, 03 Jan 2020 18:53:53 -0500 Original-Received: from gateway33.websitewelcome.com ([192.185.145.87]:35619) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1inWlM-0001Vr-KH for emacs-devel@gnu.org; Fri, 03 Jan 2020 18:53:52 -0500 Original-Received: from cm16.websitewelcome.com (cm16.websitewelcome.com [100.42.49.19]) by gateway33.websitewelcome.com (Postfix) with ESMTP id 43EB0E556 for ; Fri, 3 Jan 2020 17:53:51 -0600 (CST) Original-Received: from host2007.hostmonster.com ([67.20.76.71]) by cmsmtp with SMTP id nWlKiZAjGOdBHnWlLidpw8; Fri, 03 Jan 2020 17:53:51 -0600 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-Type:MIME-Version:Message-ID: In-Reply-To:Date:References:Subject:To:From:Sender:Reply-To:Cc: Content-Transfer-Encoding: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=Pn6n9vae2ukZJFDioFAWdxUJoWgft5BBzPRHEGXrKH0=; b=k5nsX+0vJebeH4/rGnWh7oJnk KsR808rukc6FtyS+rfquKSI/a+kxfgCwNYpo0IWrLvoNe9z04RFVq81kcTmDgCIDl6AUcoqa5e3oH mgTMhVhAqEDoMica52YW1vOepqi0AIbhkIX5oeXvNiwqp/DAohfVQCbZRc/gs7XxSxf/hZHBWr/Oe HRSW7e+dKPuhG0s1Xl49Vu0LF0o9GibzsiOUJ+2s8XJoOClIwSsC8yynGPsNkmKAUK+byu3/bcmBj fAAhfuLugbaonejrP4ClYw/hUgfHInl+DUgqNYXl9e6/f/wtJpu+cOzjOfv+KS3f4yga2tjwy/gVI O4qdZMRXg==; Original-Received: from [76.77.182.20] (port=55588 helo=Takver4) by host2007.hostmonster.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1inWlK-002va7-Mq for emacs-devel@gnu.org; Fri, 03 Jan 2020 16:53:50 -0700 In-Reply-To: <83tv5cgvar.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 03 Jan 2020 22:05:32 +0200") 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: 1inWlK-002va7-Mq X-Source-Sender: (Takver4) [76.77.182.20]:55588 X-Source-Auth: stephen_leake@stephe-leake.org X-Email-Count: 1 X-Source-Cap: c3RlcGhlbGU7c3RlcGhlbGU7aG9zdDIwMDcuaG9zdG1vbnN0ZXIuY29t X-Local-Domain: yes X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 192.185.145.87 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:243902 Archived-At: Eli Zaretskii writes: > 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. The interface should look like LSP; it aims to support everything an IDE needs from a "language server" (ie parser), and allows for custom extensions where it falls short. LSP language servers are implemented in some compiled language, not elisp; eglot/lsp-mode is just the elisp side of the protocol. The elisp sends edits and info requests (ie, "insert/delete this text at this point", "fontify/format this range") to the server, and handles the responses. ada-mode works in a similar way, but LSP is an industry standard, so it is a better choice. If Emacs has a mode that conforms to the editor side of the LSP protocol, it can use _any_ LSP language server; they do not have to be provided by Emacs. For example, Debian could provide some language servers as packages (I assume it does now, but I have not checked), and Emacs could just use them. -- -- Stephe