From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: era+emacsbugs@iki.fi Newsgroups: gmane.emacs.bugs Subject: bug#4030: forward-sexp parses character literal ?; as comment Date: Tue, 04 Aug 2009 15:07:22 +0300 Message-ID: <1249387642.18128.1328220453@webmail.messagingengine.com> Reply-To: era+emacsbugs@iki.fi, 4030@emacsbugs.donarmstrong.com NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1249388835 13466 80.91.229.12 (4 Aug 2009 12:27:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 4 Aug 2009 12:27:15 +0000 (UTC) To: submit@emacsbugs.donarmstrong.com Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Aug 04 14:27:08 2009 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1MYJ6d-0000b6-T6 for geb-bug-gnu-emacs@m.gmane.org; Tue, 04 Aug 2009 14:27:04 +0200 Original-Received: from localhost ([127.0.0.1]:58688 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MYJ6c-0002iK-11 for geb-bug-gnu-emacs@m.gmane.org; Tue, 04 Aug 2009 08:27:02 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MYJ6W-0002i6-4x for bug-gnu-emacs@gnu.org; Tue, 04 Aug 2009 08:26:56 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MYJ6Q-0002gp-C9 for bug-gnu-emacs@gnu.org; Tue, 04 Aug 2009 08:26:54 -0400 Original-Received: from [199.232.76.173] (port=40900 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MYJ6Q-0002gm-5W for bug-gnu-emacs@gnu.org; Tue, 04 Aug 2009 08:26:50 -0400 Original-Received: from rzlab.ucr.edu ([138.23.92.77]:48198) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1MYJ6P-0004Vc-7i for bug-gnu-emacs@gnu.org; Tue, 04 Aug 2009 08:26:50 -0400 Original-Received: from rzlab.ucr.edu (rzlab.ucr.edu [127.0.0.1]) by rzlab.ucr.edu (8.14.3/8.14.3/Debian-5) with ESMTP id n74CQlEG002323; Tue, 4 Aug 2009 05:26:47 -0700 Original-Received: (from debbugs@localhost) by rzlab.ucr.edu (8.14.3/8.14.3/Submit) id n74CF4K6001128; Tue, 4 Aug 2009 05:15:04 -0700 X-Loop: owner@emacsbugs.donarmstrong.com Resent-From: era+emacsbugs@iki.fi Resent-To: bug-submit-list@donarmstrong.com Resent-CC: era+emacsbugs@iki.fi, Emacs Bugs Resent-Date: Tue, 04 Aug 2009 12:15:04 +0000 Resent-Message-ID: Resent-Sender: owner@emacsbugs.donarmstrong.com X-Emacs-PR-Message: report 4030 X-Emacs-PR-Package: emacs X-Emacs-PR-Keywords: Original-Received: via spool by submit@emacsbugs.donarmstrong.com id=B.1249387648576 (code B ref -1); Tue, 04 Aug 2009 12:15:04 +0000 Original-Received: (at submit) by emacsbugs.donarmstrong.com; 4 Aug 2009 12:07:28 +0000 X-Spam-Bayes: score:0.5 Bayes not run. spammytokens:Tokens not available. hammytokens:Tokens not available. Original-Received: from out1.smtp.messagingengine.com (out1.smtp.messagingengine.com [66.111.4.25]) by rzlab.ucr.edu (8.14.3/8.14.3/Debian-5) with ESMTP id n74C7NDA000571 for ; Tue, 4 Aug 2009 05:07:24 -0700 Original-Received: from compute1.internal (compute1.internal [10.202.2.41]) by out1.messagingengine.com (Postfix) with ESMTP id 84CB03BDFFB for ; Tue, 4 Aug 2009 08:07:22 -0400 (EDT) Original-Received: from web7.messagingengine.com ([10.202.2.216]) by compute1.internal (MEProxy); Tue, 04 Aug 2009 08:07:23 -0400 Original-Received: by web7.messagingengine.com (Postfix, from userid 99) id 3BAE7DCE9; Tue, 4 Aug 2009 08:07:22 -0400 (EDT) X-Sasl-Enc: As1WZBomo/VHmoilSfMxSNKZpCs+RSjelWWwKpNx/gbI 1249387642 X-Mailer: MessagingEngine.com Webmail Interface X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 2) Resent-Date: Tue, 04 Aug 2009 08:26:54 -0400 X-BeenThere: bug-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:29850 Archived-At: Package: emacs Version: 23.1.50.1 Severity: normal X-Debbugs-Cc: era+emacsbugs@iki.fi This is a pared-down version of Ubuntu bug report #405498 https://bugs.launchpad.net/bugs/405498 -- please see the URL for the full bug report. It seems that forward-sexp (and its underlying C implementation) does not cope correctly with a character literal semicolon, seeing instead (effectively) end of line. In the *scratch* buffer if you write (insert ?;) you can evaluate this Lisp code and it behaves as intended (inserts a semicolon in the current buffer) but doing M-x forward-sexp just before the expression results in an "Unbalanced parentheses" error. This causes problems e.g. when Customize wants to edit an .emacs file which contains the character constant ?; anywhere in it, because Customize uses forward-sexp to parse the user's .emacs file. /* era */ -- If this were a real .signature, it would suck less. Well, maybe not. /* era */ -- If this were a real .signature, it would suck less. Well, maybe not.