From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Sebastian Tennant Newsgroups: gmane.emacs.help Subject: Re: Macro used for dynamic setting of font-lock-keywords Date: Sat, 26 May 2007 13:40:34 +0300 Message-ID: <87646fuau5.fsf@moley.org> References: <874pm0573o.fsf@lion.rapttech.com.au> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1180175956 22609 80.91.229.12 (26 May 2007 10:39:16 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Sat, 26 May 2007 10:39:16 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sat May 26 12:39:14 2007 Return-path: Envelope-to: geh-help-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 1Hrtg1-0007Sd-Dv for geh-help-gnu-emacs@m.gmane.org; Sat, 26 May 2007 12:39:13 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Hrtg0-0003XY-Sb for geh-help-gnu-emacs@m.gmane.org; Sat, 26 May 2007 06:39:12 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Hrtfo-0003Uw-Kf for help-gnu-emacs@gnu.org; Sat, 26 May 2007 06:39:00 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Hrtfn-0003SI-4g for help-gnu-emacs@gnu.org; Sat, 26 May 2007 06:39:00 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Hrtfm-0003Rv-Ss for help-gnu-emacs@gnu.org; Sat, 26 May 2007 06:38:58 -0400 Original-Received: from main.gmane.org ([80.91.229.2] helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Hrtfm-0007RZ-I5 for help-gnu-emacs@gnu.org; Sat, 26 May 2007 06:38:58 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1Hrtfa-0000l1-F6 for help-gnu-emacs@gnu.org; Sat, 26 May 2007 12:38:46 +0200 Original-Received: from 85.105.17.65 ([85.105.17.65]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 26 May 2007 12:38:46 +0200 Original-Received: from sebyte by 85.105.17.65 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 26 May 2007 12:38:46 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 48 Original-X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 85.105.17.65 User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.95 (gnu/linux) Cancel-Lock: sha1:llmalN2YVJr750EBaDvxphV47jk= X-detected-kernel: Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:44452 Archived-At: Quoth Tim X : >> (defun foo (word) >> (display-buffer (set-buffer (get-buffer-create "*bar*"))) >> (insert (format "baz\n")) >> (unless (fboundp 'foo-dynamic-add-keyword) ;only define it once >> (defmacro foo-dynamic-add-keyword () >> `(font-lock-add-keywords nil '((,word . font-lock-warning-face)) 'set))) >> (foo-dynamic-add-keyword) ;call the macro >> (font-lock-mode 1)) >> >> (foo "baz") >> >> in that the string argument to foo is added to the buffer's >> font-lock-keywords and the string is highlighted wherever it occurs, >> but it seems like something of a kludge to me. >> >> Just out of interest really, is there a better way of passing the >> value of a variable as an argument to the function >> font-lock-add-keywords? > > I must be missing something - I don't understand why you are using a macro or > what the issue is with passing an argument. Doesn't something like (not tested) > (defun my-add-keyword (word) (font-lock-add-keywords nil '((word . font-lock-warning-face)) 'set)) [C-x C-e] my-add-keyword (my-add-keyword "keyword") [C-x C-e] (t ((word . font-lock-warning-face)) (word (0 font-lock-warning-face))) ^ | This doesn't do the job ---------------+ As you can see, passing arguments that make it into font-lock-keywords is not so straightforward as you think. > (add-hook xxx-mode-hook > (lambda () > .... ; various mode specific struff > (font-lock-add-keywords nil > '(("\\<\\(FIXME\\):" 1 font-lock-warning-face prepend))))) Of course this works. The pattern you want to match is being added directly to the list. Sebastian