From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs,gmane.emacs.pretest.bugs Subject: bug#3001: 23.0.92; doc for regexp construct (?: Date: Wed, 15 Apr 2009 09:32:05 -0400 Message-ID: References: <006801c9bd95$41e3e180$0200a8c0@us.oracle.com> Reply-To: Stefan Monnier , 3001@emacsbugs.donarmstrong.com NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1239803065 19321 80.91.229.12 (15 Apr 2009 13:44:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 15 Apr 2009 13:44:25 +0000 (UTC) Cc: emacs-pretest-bug@gnu.org, 3001@emacsbugs.donarmstrong.com To: Drew Adams Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Apr 15 15:45:44 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 1Lu5Qp-0005yZ-Aj for geb-bug-gnu-emacs@m.gmane.org; Wed, 15 Apr 2009 15:45:42 +0200 Original-Received: from localhost ([127.0.0.1]:39720 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Lu5PP-0006iO-H3 for geb-bug-gnu-emacs@m.gmane.org; Wed, 15 Apr 2009 09:44:11 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Lu5PG-0006gb-3E for bug-gnu-emacs@gnu.org; Wed, 15 Apr 2009 09:44:02 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Lu5PB-0006cz-6X for bug-gnu-emacs@gnu.org; Wed, 15 Apr 2009 09:44:01 -0400 Original-Received: from [199.232.76.173] (port=40418 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Lu5PA-0006cY-Ud for bug-gnu-emacs@gnu.org; Wed, 15 Apr 2009 09:43:56 -0400 Original-Received: from rzlab.ucr.edu ([138.23.92.77]:57260) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Lu5P9-0007ef-65 for bug-gnu-emacs@gnu.org; Wed, 15 Apr 2009 09:43:55 -0400 Original-Received: from rzlab.ucr.edu (rzlab.ucr.edu [127.0.0.1]) by rzlab.ucr.edu (8.13.8/8.13.8/Debian-3) with ESMTP id n3FDhoEv020317; Wed, 15 Apr 2009 06:43:51 -0700 Original-Received: (from debbugs@localhost) by rzlab.ucr.edu (8.13.8/8.13.8/Submit) id n3FDe6KW019405; Wed, 15 Apr 2009 06:40:06 -0700 X-Loop: owner@emacsbugs.donarmstrong.com Resent-From: Stefan Monnier Resent-To: bug-submit-list@donarmstrong.com Resent-CC: Emacs Bugs Resent-Date: Wed, 15 Apr 2009 13:40:05 +0000 Resent-Message-ID: Resent-Sender: owner@emacsbugs.donarmstrong.com X-Emacs-PR-Message: followup 3001 X-Emacs-PR-Package: emacs X-Emacs-PR-Keywords: Original-Received: via spool by 3001-submit@emacsbugs.donarmstrong.com id=B3001.123980233517873 (code B ref 3001); Wed, 15 Apr 2009 13:40:05 +0000 Original-Received: (at 3001) by emacsbugs.donarmstrong.com; 15 Apr 2009 13:32:15 +0000 X-Spam-Bayes: score:0.5 Bayes not run. spammytokens:Tokens not available. hammytokens:Tokens not available. Original-Received: from ironport2-out.teksavvy.com (ironport2-out.teksavvy.com [206.248.154.182]) by rzlab.ucr.edu (8.13.8/8.13.8/Debian-3) with ESMTP id n3FDWBCW017859 for <3001@emacsbugs.donarmstrong.com>; Wed, 15 Apr 2009 06:32:13 -0700 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtIEAOt+5UlLd+7D/2dsb2JhbACBUtFJg34GhSA X-IronPort-AV: E=Sophos;i="4.40,192,1238990400"; d="scan'208";a="37105012" Original-Received: from 75-119-238-195.dsl.teksavvy.com (HELO pastel.home) ([75.119.238.195]) by ironport2-out.teksavvy.com with ESMTP; 15 Apr 2009 09:32:05 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id B91467EF6; Wed, 15 Apr 2009 09:32:05 -0400 (EDT) In-Reply-To: <006801c9bd95$41e3e180$0200a8c0@us.oracle.com> (Drew Adams's message of "Tue, 14 Apr 2009 23:41:48 -0700") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.92 (gnu/linux) X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 3) Resent-Date: Wed, 15 Apr 2009 09:44:01 -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:27197 gmane.emacs.pretest.bugs:24282 Archived-At: > Emacs calls regexp groups that use the grouping construct "(?:" "shy > groups". I don't get the impression that that is a common term for > this construct, outside Emacs. IIRC I did not invent the term, instead I took it from Perl. But I must admit that I cannot find that term in "man perlre", so I'm not sure where precisely I found it. It's just the name had'd heard used to describe this feature of Perl. Maybe XEmacs's use of the term was an influence as well. > Googling "shy group" shows only Emacs hits. Indeed, it does, yet http://en.wikipedia.org/wiki/Comparison_of_regular_expression_engines has "shy groups" in its chart. Indeed googling =AB "shy groups" perl =BB should more than 500 hits, whereas =AB "shy groups" emacs =BB shows less than 200. Stefan