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#17509: 23.4; bug with regexp in java-mode Date: Fri, 16 May 2014 17:48:18 -0400 Message-ID: References: <87lhu1g66g.fsf@tucano.isti.cnr.it> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1400276969 13983 80.91.229.3 (16 May 2014 21:49:29 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 16 May 2014 21:49:29 +0000 (UTC) Cc: 17509@debbugs.gnu.org To: Francesco =?UTF-8?Q?Potort=C3=AC?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri May 16 23:49:22 2014 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 1WlQ0F-00069E-Mh for geb-bug-gnu-emacs@m.gmane.org; Fri, 16 May 2014 23:49:19 +0200 Original-Received: from localhost ([::1]:37959 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WlQ0F-0003xe-Ct for geb-bug-gnu-emacs@m.gmane.org; Fri, 16 May 2014 17:49:19 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57041) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WlQ05-0003xX-PE for bug-gnu-emacs@gnu.org; Fri, 16 May 2014 17:49:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WlPzy-0006iN-8b for bug-gnu-emacs@gnu.org; Fri, 16 May 2014 17:49:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:44676) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WlPzy-0006iJ-5I for bug-gnu-emacs@gnu.org; Fri, 16 May 2014 17:49:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WlPzx-0000qR-MN for bug-gnu-emacs@gnu.org; Fri, 16 May 2014 17:49:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 16 May 2014 21:49:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17509 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17509-submit@debbugs.gnu.org id=B17509.14002769043158 (code B ref 17509); Fri, 16 May 2014 21:49:01 +0000 Original-Received: (at 17509) by debbugs.gnu.org; 16 May 2014 21:48:24 +0000 Original-Received: from localhost ([127.0.0.1]:37739 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WlPzL-0000or-A8 for submit@debbugs.gnu.org; Fri, 16 May 2014 17:48:23 -0400 Original-Received: from chene.dit.umontreal.ca ([132.204.246.20]:59837) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WlPzI-0000oe-IH for 17509@debbugs.gnu.org; Fri, 16 May 2014 17:48:21 -0400 Original-Received: from pastel.home (lechon.iro.umontreal.ca [132.204.27.242]) by chene.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id s4GLmIuu029422; Fri, 16 May 2014 17:48:18 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id 3DFA2601AD; Fri, 16 May 2014 17:48:18 -0400 (EDT) In-Reply-To: ("Francesco =?UTF-8?Q?Potort=C3=AC?="'s message of "Fri, 16 May 2014 18:22:16 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV4944=0 X-NAI-Spam-Version: 2.3.0.9378 : core <4944> : inlines <881> : streams <1184866> : uri <1758852> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.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:89179 Archived-At: >>> (setq defun-prompt-regexp "\\(class\\|/\\*\\*\\)[^{]*") >> Why is this an Emacs bug, and not user error? > Because I suppose that Emacs should never hang... FWIW, the exponential blowup that can happen in regexp matching is indeed a misfeature of Emacs's current regexp matcher. But it's been that way "for ever" and there's no promising sign of an upcoming fix for it. Stefan