From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Dima Kogan Newsgroups: gmane.emacs.bugs Subject: bug#13713: Root cause Date: Sun, 17 Feb 2013 00:06:49 -0800 Message-ID: <20130217000649.602fe891@shorty.local> References: <87sj4znuhk.fsf@secretsauce.net> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1361096736 20363 80.91.229.3 (17 Feb 2013 10:25:36 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 17 Feb 2013 10:25:36 +0000 (UTC) To: 13713@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Feb 17 11:25:58 2013 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 1U71RU-0006Yk-7x for geb-bug-gnu-emacs@m.gmane.org; Sun, 17 Feb 2013 11:25:56 +0100 Original-Received: from localhost ([::1]:34419 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1U71RA-0008PR-1x for geb-bug-gnu-emacs@m.gmane.org; Sun, 17 Feb 2013 05:25:36 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:49266) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1U71R6-0008PA-7t for bug-gnu-emacs@gnu.org; Sun, 17 Feb 2013 05:25:34 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1U71R3-000725-2X for bug-gnu-emacs@gnu.org; Sun, 17 Feb 2013 05:25:32 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:54506) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1U6zHC-0008W6-ET; Sun, 17 Feb 2013 03:07:10 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1U6zI2-0005kD-H2; Sun, 17 Feb 2013 03:08:02 -0500 X-Loop: help-debbugs@gnu.org In-Reply-To: <87sj4znuhk.fsf@secretsauce.net> Resent-From: Dima Kogan Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org, bug-cc-mode@gnu.org Resent-Date: Sun, 17 Feb 2013 08:08:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 13713 X-GNU-PR-Package: emacs,cc-mode X-GNU-PR-Keywords: Original-Received: via spool by 13713-submit@debbugs.gnu.org id=B13713.136108846822061 (code B ref 13713); Sun, 17 Feb 2013 08:08:02 +0000 Original-Received: (at 13713) by debbugs.gnu.org; 17 Feb 2013 08:07:48 +0000 Original-Received: from localhost ([127.0.0.1]:59970 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1U6zHn-0005jl-MA for submit@debbugs.gnu.org; Sun, 17 Feb 2013 03:07:47 -0500 Original-Received: from out1-smtp.messagingengine.com ([66.111.4.25]:51900) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1U6zHl-0005je-DY for 13713@debbugs.gnu.org; Sun, 17 Feb 2013 03:07:46 -0500 Original-Received: from compute5.internal (compute5.nyi.mail.srv.osa [10.202.2.45]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id EA3222071E for <13713@debbugs.gnu.org>; Sun, 17 Feb 2013 03:06:51 -0500 (EST) Original-Received: from frontend2.nyi.mail.srv.osa ([10.202.2.161]) by compute5.internal (MEProxy); Sun, 17 Feb 2013 03:06:51 -0500 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=secretsauce.net; h=date:from:to:subject:message-id:mime-version:content-type :content-transfer-encoding; s=mesmtp; bh=X2HaiiLAoMIqlTDyS8hfJXt ejYs=; b=SwKNQeO/c89STcd6wCZmwBH6OkiHReR0kfpo5zetDCwMRbJmDsdXuAg 2EWIdKDUzyk2O7J91T3b12uGg81oeAt/gGVWORshVzvd8uihMted5SqdrZTM4s7J dXCfxWHH8S1y4amTsbGxYKn1YnN14mqnUaWLAIYPPJDwCxTQLkTM= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:subject:message-id :mime-version:content-type:content-transfer-encoding; s=smtpout; bh=X2HaiiLAoMIqlTDyS8hfJXtejYs=; b=bwK0BXdNLRWR3o3X8cWi+NEb/4zJ 2XogfvqFA8ccfbW6+U5ol3ityEJgkmq54IR8wbQYi7P/DKF5IB4NM6yIFaELjzDO Zqrp4B1AmDceZfNJICScfVQg5euZm3YtfPObPfG9YqavOAVLS8uR/U523hG/OMcG IJ6DiG1OFNSU9Jo= X-Sasl-enc: fxV/y+/I2jl4XP+VZ6Yhy1Z1Sk0gTQrpHXNyPwTLyr1f 1361088411 Original-Received: from shorty.local (unknown [76.169.247.77]) by mail.messagingengine.com (Postfix) with ESMTPA id 628CF4824A9 for <13713@debbugs.gnu.org>; Sun, 17 Feb 2013 03:06:51 -0500 (EST) X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.10; x86_64-pc-linux-gnu) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:71434 Archived-At: I looked at it some more, and it's pretty clear what's happening. The indentation command calls (c-determine-limit), which in turn calls (parse-partial-sexp) in many places. (parse-partial-sexp) fails if asked to look at the buffer outside of the narrowed region. Thus one way to fix this is to wrap the definition of c-determine-limit in (save-restriction (widen) ... ). This is a construct that already appears in many places in cc-engine.el, so maybe it's appropriate here. This advice makes it work: (defadvice c-determine-limit (around c-determine-limit-works-with-narrowing (how-far-back &optional start try-size) activate) "I lift the restriction around this function to get around emacs bug 13713" (save-restriction (widen) ad-do-it)) I don't know enough about the internal design of cc-engine.el to know if this is an appropriate place to lift the restriction, or if lifting it is the way to go at all. Thanks