From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.devel Subject: Re: Bug #25608 and the comment-cache branch Date: Mon, 6 Feb 2017 18:37:16 +0000 Message-ID: <20170206183716.GA3568@acm> References: <20170202202418.GA2505@acm> <83lgtouxpf.fsf@gnu.org> <20170202215154.GB2505@acm> <83h94bvhzw.fsf@gnu.org> <20170205220045.GB2294@acm> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: blaine.gmane.org 1486406297 19242 195.159.176.226 (6 Feb 2017 18:38:17 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 6 Feb 2017 18:38:17 +0000 (UTC) User-Agent: Mutt/1.7.2 (2016-11-26) Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Feb 06 19:38:12 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1caoAz-0004gj-Og for ged-emacs-devel@m.gmane.org; Mon, 06 Feb 2017 19:38:09 +0100 Original-Received: from localhost ([::1]:50194 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1caoB5-0001tL-4s for ged-emacs-devel@m.gmane.org; Mon, 06 Feb 2017 13:38:15 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35076) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1caoAX-0001tF-3R for emacs-devel@gnu.org; Mon, 06 Feb 2017 13:37:42 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1caoAU-0002dc-0T for emacs-devel@gnu.org; Mon, 06 Feb 2017 13:37:41 -0500 Original-Received: from ocolin.muc.de ([193.149.48.4]:11498 helo=mail.muc.de) by eggs.gnu.org with smtp (Exim 4.71) (envelope-from ) id 1caoAT-0002cT-R6 for emacs-devel@gnu.org; Mon, 06 Feb 2017 13:37:37 -0500 Original-Received: (qmail 88197 invoked by uid 3782); 6 Feb 2017 18:37:36 -0000 Original-Received: from acm.muc.de (p548C7532.dip0.t-ipconnect.de [84.140.117.50]) by colin.muc.de (tmda-ofmipd) with ESMTP; Mon, 06 Feb 2017 19:37:35 +0100 Original-Received: (qmail 3621 invoked by uid 1000); 6 Feb 2017 18:37:16 -0000 Content-Disposition: inline In-Reply-To: X-Delivery-Agent: TMDA/1.1.12 (Macallan) X-Primary-Address: acm@muc.de X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 193.149.48.4 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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:212056 Archived-At: Hello, Stefan. On Sun, Feb 05, 2017 at 20:12:13 -0500, Stefan Monnier wrote: > > | Speed Direction of scanning Correct parsing > > ------------------------------------------------------------------------ > > CC | OK forwards yes > > M-t | OK backwards no [1] > > M-nil | Slow backwards probably [2] > > AP | OK backwards no [3] > And its parsing is correct if you assume that syntax-ppss works > correctly .... syntax-ppss doesn't work correctly, as you know full well, having snipped the bug number (#22983) for the breakage from what you've cited. That bug has been open for almost a year, and there was a whole thread on emacs-devel about asking for it to be fixed back last summer. I've asked several times since then for it to be fixed, to no avail. > .... (and if it doesn't, it's something that needs to be fixed > anyway because it has much worse consequences than just messing > (forward-comment -1)). All the signs are that it will never be fixed. If I'm wrong here, set yourself a deadline for fixing it and let us know what that deadline is. > Stefan -- Alan Mackenzie (Nuremberg, Germany).