From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.help Subject: Re: How to add syntax-highlighting to a Help buffer? Date: Sat, 04 Jul 2015 17:25:07 +0200 Message-ID: <878uawlzcc.fsf@web.de> References: <87si94x1vk.fsf@web.de> <878uaw3qpc.fsf@nl106-137-147.student.uu.se> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1436023554 17978 80.91.229.3 (4 Jul 2015 15:25:54 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 4 Jul 2015 15:25:54 +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 Jul 04 17:25:47 2015 Return-path: Envelope-to: geh-help-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 1ZBPK6-0006Jh-FC for geh-help-gnu-emacs@m.gmane.org; Sat, 04 Jul 2015 17:25:46 +0200 Original-Received: from localhost ([::1]:44627 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZBPK5-0005C2-Uo for geh-help-gnu-emacs@m.gmane.org; Sat, 04 Jul 2015 11:25:45 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44085) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZBPJl-0005Br-Pd for help-gnu-emacs@gnu.org; Sat, 04 Jul 2015 11:25:26 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZBPJi-0002An-Cf for help-gnu-emacs@gnu.org; Sat, 04 Jul 2015 11:25:25 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:52793) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZBPJi-0002Af-6S for help-gnu-emacs@gnu.org; Sat, 04 Jul 2015 11:25:22 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ZBPJe-000651-G1 for help-gnu-emacs@gnu.org; Sat, 04 Jul 2015 17:25:18 +0200 Original-Received: from ip-2-207-71-9.web.vodafone.de ([2.207.71.9]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 04 Jul 2015 17:25:18 +0200 Original-Received: from michael_heerdegen by ip-2-207-71-9.web.vodafone.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 04 Jul 2015 17:25:18 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 17 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: ip-2-207-71-9.web.vodafone.de User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) Cancel-Lock: sha1:mZaMD/6W6uP29Er7YxBAOtSQHo8= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:105429 Archived-At: Emanuel Berg writes: > One question is, why doesn't help-mode do this the > customary way? `font-lock-mode' is not so useful for the fontification of Help buffers, so it makes sense not to use it. For highlighting regexps, as in your examples, hi-lock is just fine. *Help* is mostly text, not code. OTOH the code could be easily rewritten to use font-lock-mode and propertize via the font-lock-face text property. I guess the reason for that this is not the case is just that *Help* is much older than font-lock-face, and nobody yet wanted/needed/requested to use font-lock-mode in *Help*. Michael.