From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Stephen J. Turnbull" Newsgroups: gmane.emacs.devel Subject: Global match data considered harmful Date: Tue, 11 May 2010 11:09:25 +0900 Message-ID: <87y6frqje2.fsf@uwakimon.sk.tsukuba.ac.jp> References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1273545768 31722 80.91.229.12 (11 May 2010 02:42:48 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 11 May 2010 02:42:48 +0000 (UTC) Cc: Juanma Barranquero , Lennart Borgman , Emacs-Devel devel To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue May 11 04:42:46 2010 connect(): No such file or directory Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1OBfQh-0000m6-2m for ged-emacs-devel@m.gmane.org; Tue, 11 May 2010 04:42:43 +0200 Original-Received: from localhost ([127.0.0.1]:45212 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OBfQg-00028h-Io for ged-emacs-devel@m.gmane.org; Mon, 10 May 2010 22:42:42 -0400 Original-Received: from [140.186.70.92] (port=40137 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OBfQa-00028V-72 for emacs-devel@gnu.org; Mon, 10 May 2010 22:42:37 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OBfQY-0008QL-RI for emacs-devel@gnu.org; Mon, 10 May 2010 22:42:36 -0400 Original-Received: from mtps01.sk.tsukuba.ac.jp ([130.158.97.223]:38290) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OBfQY-0008Oh-0R for emacs-devel@gnu.org; Mon, 10 May 2010 22:42:34 -0400 Original-Received: from uwakimon.sk.tsukuba.ac.jp (uwakimon.sk.tsukuba.ac.jp [130.158.99.156]) by mtps01.sk.tsukuba.ac.jp (Postfix) with ESMTP id B177B1535AE; Tue, 11 May 2010 11:11:11 +0900 (JST) Original-Received: by uwakimon.sk.tsukuba.ac.jp (Postfix, from userid 1000) id ECB301A3628; Tue, 11 May 2010 11:09:25 +0900 (JST) In-Reply-To: X-Mailer: VM 8.0.12-devo-585 under 21.5 (beta29) "garbanzo" a03421eb562b XEmacs Lucid (x86_64-unknown-linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:124691 Archived-At: Stefan Monnier writes: > The rule for where to place a save-match-data is: > > around the code run between "looking-at" and > "match-string-no-properties". *snort* I'm with Juanma. This is just so wrong, you know. Not returning the match data, instead storing it in a global object, is arguably the worst design decision in all of Emacs.