From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: Fixing ill-conditioned regular expressions. Proof of concept. Date: Mon, 23 Feb 2015 11:55:24 -0800 Organization: UCLA Computer Science Department Message-ID: <54EB85AC.1030800@cs.ucla.edu> References: <20150223181205.GA2861@acm.fritz.box> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1424721361 10795 80.91.229.3 (23 Feb 2015 19:56:01 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 23 Feb 2015 19:56:01 +0000 (UTC) To: Alan Mackenzie , emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Feb 23 20:55:55 2015 Return-path: Envelope-to: ged-emacs-devel@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 1YPz6g-0001um-59 for ged-emacs-devel@m.gmane.org; Mon, 23 Feb 2015 20:55:54 +0100 Original-Received: from localhost ([::1]:45234 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YPz6f-0002Ph-PV for ged-emacs-devel@m.gmane.org; Mon, 23 Feb 2015 14:55:53 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35954) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YPz6I-0002Pc-KL for emacs-devel@gnu.org; Mon, 23 Feb 2015 14:55:31 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YPz6F-0003Wt-3r for emacs-devel@gnu.org; Mon, 23 Feb 2015 14:55:30 -0500 Original-Received: from smtp.cs.ucla.edu ([131.179.128.62]:60193) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YPz6E-0003Wl-Uz for emacs-devel@gnu.org; Mon, 23 Feb 2015 14:55:27 -0500 Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id 9D20439E8019; Mon, 23 Feb 2015 11:55:24 -0800 (PST) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Original-Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id alrlApaiGoiN; Mon, 23 Feb 2015 11:55:24 -0800 (PST) Original-Received: from Penguin.CS.UCLA.EDU (Penguin.CS.UCLA.EDU [131.179.64.200]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id 65ED839E8013; Mon, 23 Feb 2015 11:55:24 -0800 (PST) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 In-Reply-To: <20150223181205.GA2861@acm.fritz.box> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 131.179.128.62 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:183427 Archived-At: Would it be possible to fix the regular expression engine, so that programs don't have to worry about parsing and reformulating regexps so that they're "nice"?