From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Vitalie Spinu Newsgroups: gmane.emacs.devel Subject: Re: A vision for multiple major modes [was: Re: [Emacs-diffs] widen-limits c331b66:] Date: Thu, 24 Mar 2016 21:43:56 +0100 Message-ID: <87oaa3fvxv.fsf@gmail.com> References: <8737riqouj.fsf@gmail.com> <221845e0-b194-433e-bfbc-105272ae5752@default> <87twjyp21k.fsf@gmail.com> <56F242E0.7060004@online.de> <877fgtpfrw.fsf@gmail.com> <20160323211605.GA5324@acm.fritz.box> <871t70onzf.fsf@gmail.com> <20160324174404.GA2721@acm.fritz.box> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1458852264 11252 80.91.229.3 (24 Mar 2016 20:44:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 24 Mar 2016 20:44:24 +0000 (UTC) Cc: Andreas =?utf-8?Q?R=C3=B6hler?= , emacs-devel@gnu.org, Stefan Monnier , Dmitry Gutov , Eli Zaretskii , Drew Adams To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Mar 24 21:44:19 2016 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ajC78-0000TJ-6M for ged-emacs-devel@m.gmane.org; Thu, 24 Mar 2016 21:44:18 +0100 Original-Received: from localhost ([::1]:52669 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ajC77-0004vm-AU for ged-emacs-devel@m.gmane.org; Thu, 24 Mar 2016 16:44:17 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58484) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ajC6u-0004uk-8q for emacs-devel@gnu.org; Thu, 24 Mar 2016 16:44:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ajC6r-0007VH-2w for emacs-devel@gnu.org; Thu, 24 Mar 2016 16:44:04 -0400 Original-Received: from mail-wm0-x22c.google.com ([2a00:1450:400c:c09::22c]:37694) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ajC6q-0007VC-RS; Thu, 24 Mar 2016 16:44:01 -0400 Original-Received: by mail-wm0-x22c.google.com with SMTP id p65so1628304wmp.0; Thu, 24 Mar 2016 13:44:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version; bh=Eha0rWj9Y8jZY/O5StkknYleZECo2JV8pW1FPoUEe08=; b=ff6iFOSsRlmeeYz2mYv9hTZrm52tnJI7+sgRHFAyNKrAYU0jnd/MzM1Q4NIzinrWrg AcSZq5ryHvLDuBL0irf02s8FkewXEMZG+SUs6sxGxLgDH/WVGstCRL9wcGdt3j1ddE4l Cj+M6tcWmTHyxmE/S5kq4bHBCBp3yPRGhKJO/dl6x/xD3uHzI5ZD+dZdDkvTV+YOBjui NvNgkKPhLsE4sR5H2rbNf95sRgUZhTJwXJZg2N8o/cKvB0At1RvCPhgahKzEnxmCZnvQ 2BEIV19eml2UQQhy7opi8HWZnXMhWtWNIu3nKEuzbvTuVaO/PvTEo+6MKiAhlXlt6NrU l6LQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version; bh=Eha0rWj9Y8jZY/O5StkknYleZECo2JV8pW1FPoUEe08=; b=YcWev8j+ka3SbflNNiehrVXy1CKFw7MZdyCXLRLTgVzdRJYL507+xzwl/e9YfTSPKE Spoq0e5/4MOJrTVomQ87EiM70SbPMzWC3yKQs1MW6k/MO2lFt+Fv+GbRHUZ+QKCbbBS3 uw+Ml7T5c6R/ckRTvZJ3s3T/YnCFKi+X/9jE5UQfTRXyr3+0qQxtcwFVlByGYpGeCm7i aesan7DM0Z5gqYT/RTAmV/kujpxhGhtDBGs98mkeoxvNOs9Ckonm+uIAIU83SjWSg6H6 YzrOIrrWXyUkepeq7VPBwWb/2CPR+b8L1aD1R7+mB1R2oVD6/Mgv41Os7rAg9QTCdeMT XKSw== X-Gm-Message-State: AD7BkJLsnEUW8nrWfOuzKCzHkaMsFtWphQXSei14G3CGq1mBG5JBswB8BkAE5b7rzJWBaw== X-Received: by 10.194.202.195 with SMTP id kk3mr11575442wjc.159.1458852240069; Thu, 24 Mar 2016 13:44:00 -0700 (PDT) Original-Received: from localhost (ma-130-115-183-228.mobile-devices.eur.nl. [130.115.183.228]) by smtp.gmail.com with ESMTPSA id w203sm161060wmg.14.2016.03.24.13.43.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 24 Mar 2016 13:43:58 -0700 (PDT) In-Reply-To: <20160324174404.GA2721@acm.fritz.box> (Alan Mackenzie's message of "Thu, 24 Mar 2016 17:44:04 +0000") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.92 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2a00:1450:400c:c09::22c X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:202197 Archived-At: >> On Thu, Mar 24 2016 17:44, Alan Mackenzie wrote: > I doubt that very much. syntax-ppss is just one of many ways of using > parse-partial-sexp. Most common one (or the only one) that might need across chunk parsing. Other uses might be behaving correctly within a narrowed span. The only adjustment of parse-partial-sexp that might be necessary with respect to hard narrowing is to start parsing from (max FROM hard-point-min). But that remains to be seen with concrete use cases. > But I'd love to see the code. Has it been committed, and if so, into which > branch? I have never needed that with polymode, so I don't have an example (this might change in the near future though). The implementation would flow as: parse one span with syntax-ppss, then go to next span, install syntax-ppss-last at the beggining of it and call syntax-ppss at the next desired point etc. Vitalie