From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: lee Newsgroups: gmane.emacs.bugs Subject: bug#17023: 24.3.50; font-lock-add-keywords creates duplicates Date: Mon, 17 Mar 2014 11:48:24 +0100 Message-ID: <87ha6xhzif.fsf@yun.yagibdah.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1395053519 19418 80.91.229.3 (17 Mar 2014 10:51:59 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 17 Mar 2014 10:51:59 +0000 (UTC) To: 17023@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Mar 17 11:52:08 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 1WPV9L-0003te-P2 for geb-bug-gnu-emacs@m.gmane.org; Mon, 17 Mar 2014 11:52:07 +0100 Original-Received: from localhost ([::1]:56625 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPV9L-0001R0-Fn for geb-bug-gnu-emacs@m.gmane.org; Mon, 17 Mar 2014 06:52:07 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55215) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPV8P-0007wB-Hp for bug-gnu-emacs@gnu.org; Mon, 17 Mar 2014 06:51:15 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WPV8J-0004l6-N5 for bug-gnu-emacs@gnu.org; Mon, 17 Mar 2014 06:51:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:37452) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPV8J-0004ky-3y for bug-gnu-emacs@gnu.org; Mon, 17 Mar 2014 06:51:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WPV8I-0002r2-KI for bug-gnu-emacs@gnu.org; Mon, 17 Mar 2014 06:51:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: lee Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 17 Mar 2014 10:51:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 17023 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.139505343110913 (code B ref -1); Mon, 17 Mar 2014 10:51:02 +0000 Original-Received: (at submit) by debbugs.gnu.org; 17 Mar 2014 10:50:31 +0000 Original-Received: from localhost ([127.0.0.1]:38634 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WPV7m-0002pw-VK for submit@debbugs.gnu.org; Mon, 17 Mar 2014 06:50:31 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:53330) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WPV7k-0002po-E7 for submit@debbugs.gnu.org; Mon, 17 Mar 2014 06:50:28 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WPV7e-0004dP-Cz for submit@debbugs.gnu.org; Mon, 17 Mar 2014 06:50:28 -0400 Original-Received: from lists.gnu.org ([2001:4830:134:3::11]:51006) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPV7e-0004dJ-AU for submit@debbugs.gnu.org; Mon, 17 Mar 2014 06:50:22 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55020) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPV7Z-0006py-2y for bug-gnu-emacs@gnu.org; Mon, 17 Mar 2014 06:50:22 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WPV7R-0004ZI-FR for bug-gnu-emacs@gnu.org; Mon, 17 Mar 2014 06:50:17 -0400 Original-Received: from client-194-42-186-216.muenet.net ([194.42.186.216]:37316 helo=yun.yagibdah.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPV7R-0004Yt-5z for bug-gnu-emacs@gnu.org; Mon, 17 Mar 2014 06:50:09 -0400 Original-Received: from lee by yun.yagibdah.de with local (Exim 4.80.1) (envelope-from ) id 1WPV7Q-0006qY-7k for bug-gnu-emacs@gnu.org; Mon, 17 Mar 2014 11:50:08 +0100 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). 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:86905 Archived-At: To reproduce: emacs -q C-x b test ;; switch to an arbitrary buffer M-x describe-variable font-lock-keywords ;; The value of `font-lock-keywords' should be nil. foobar (font-lock-add-keywords nil '(("\\_" (0 'hi-yellow prepend)))) C-x e ;; to evaluate above expression --- "foobar" is being highlighted M-x describe-variable font-lock-keywords ;; The value of `font-lock-keywords' is now: font-lock-keywords is a variable defined in `font-lock.el'. Its value is (t (("\\_" (0 'hi-yellow prepend))) ("\\_" (0 'hi-yellow prepend))) The 'hi-yellow face is defined in hi-lock.el. The `font-lock-add-keywords' function even removes keywords before adding them to avoid duplicates. Yet it seems to create duplicates itself. In GNU Emacs 24.3.50.2 (x86_64-unknown-linux-gnu, X toolkit) of 2014-03-17 on yun.yagibdah.de Windowing system distributor `Fedora Project', version 11.0.11404000 Configured using: `configure --without-gpm --without-toolkit-scroll-bars --with-x-toolkit=lucid --enable-link-time-optimization' -- Knowledge is volatile and fluid. Software is power.