From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#4030: forward-sexp parses character literal ?; as comment Date: Sat, 18 Jun 2016 00:31:39 -0400 Message-ID: References: <1249387642.18128.1328220453@webmail.messagingengine.com> <4A782D00.4040808@gmx.at> <1249460270.18460.1328376993@webmail.messagingengine.com> <4A799766.9050304@gmx.at> <4A7C25A7.6000900@gmx.at> <4A813736.8030403@gmx.at> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1466224286 31925 80.91.229.3 (18 Jun 2016 04:31:26 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 18 Jun 2016 04:31:26 +0000 (UTC) Cc: 4030@debbugs.gnu.org, era+emacsbugs@iki.fi To: Andrew Hyatt Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Jun 18 06:31:16 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1bE7ud-0001R4-9E for geb-bug-gnu-emacs@m.gmane.org; Sat, 18 Jun 2016 06:31:15 +0200 Original-Received: from localhost ([::1]:33079 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bE7uc-0006h0-5D for geb-bug-gnu-emacs@m.gmane.org; Sat, 18 Jun 2016 00:31:14 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49646) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bE7uW-0006ft-F0 for bug-gnu-emacs@gnu.org; Sat, 18 Jun 2016 00:31:09 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bE7uQ-0001Y1-Cd for bug-gnu-emacs@gnu.org; Sat, 18 Jun 2016 00:31:07 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:60565) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bE7uQ-0001Xx-8z for bug-gnu-emacs@gnu.org; Sat, 18 Jun 2016 00:31:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1bE7uQ-00033f-1R for bug-gnu-emacs@gnu.org; Sat, 18 Jun 2016 00:31:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 18 Jun 2016 04:31:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 4030 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 4030-submit@debbugs.gnu.org id=B4030.146622420811692 (code B ref 4030); Sat, 18 Jun 2016 04:31:01 +0000 Original-Received: (at 4030) by debbugs.gnu.org; 18 Jun 2016 04:30:08 +0000 Original-Received: from localhost ([127.0.0.1]:44669 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bE7tX-00032V-W0 for submit@debbugs.gnu.org; Sat, 18 Jun 2016 00:30:08 -0400 Original-Received: from pruche.dit.umontreal.ca ([132.204.246.22]:56537) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bE7tV-00031Y-KT for 4030@debbugs.gnu.org; Sat, 18 Jun 2016 00:30:06 -0400 Original-Received: from ceviche.home (lechon.iro.umontreal.ca [132.204.27.242]) by pruche.dit.umontreal.ca (8.14.7/8.14.1) with ESMTP id u5I4U32M021829; Sat, 18 Jun 2016 00:30:03 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id 33532661DE; Sat, 18 Jun 2016 00:31:39 -0400 (EDT) In-Reply-To: (Andrew Hyatt's message of "Fri, 17 Jun 2016 23:47:07 -0400") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV5709=0 X-NAI-Spam-Version: 2.3.0.9418 : core <5709> : inlines <4940> : streams <1653775> : uri <2233211> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:119712 Archived-At: > Does anyone have any further thoughts? It wasn't clear to me from this > discussion whether there was any consensus that this was actually a bug > or not. With the support for syntax-fontification "on-the-fly" within forward-sexp, we could actually make forward-sexp handle those cases correctly nowadays. So we can either: - make it work with a syntax-propertize-function. Not sure it's worth the cost. - deprecate ?; and friends, probably adding font-lock highlights to help spot the problematic cases, and maybe changing the Lisp reader code to warn about those things as well (with intention to remove support for them). - keep on living with this occasional problem. Stefan