From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Oleksandr Gavenko Newsgroups: gmane.emacs.help Subject: Re: Own programming language mode - syntax highlighting Date: Tue, 14 Sep 2010 14:43:15 +0300 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1284464628 24862 80.91.229.12 (14 Sep 2010 11:43:48 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 14 Sep 2010 11:43:48 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Sep 14 13:43:47 2010 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 4.69) (envelope-from ) id 1OvTvO-0002DJ-OA for geh-help-gnu-emacs@m.gmane.org; Tue, 14 Sep 2010 13:43:47 +0200 Original-Received: from localhost ([127.0.0.1]:56449 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OvTvN-0002H6-Il for geh-help-gnu-emacs@m.gmane.org; Tue, 14 Sep 2010 07:43:45 -0400 Original-Received: from [140.186.70.92] (port=56538 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OvTut-0002Gy-Qz for help-gnu-emacs@gnu.org; Tue, 14 Sep 2010 07:43:16 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OvTus-0004RI-Kd for help-gnu-emacs@gnu.org; Tue, 14 Sep 2010 07:43:15 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:36245) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OvTus-0004R7-DI for help-gnu-emacs@gnu.org; Tue, 14 Sep 2010 07:43:14 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OvTuo-0001xb-5y for help-gnu-emacs@gnu.org; Tue, 14 Sep 2010 13:43:10 +0200 Original-Received: from 91.193.68.214 ([91.193.68.214]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 14 Sep 2010 13:43:10 +0200 Original-Received: from gavenko by 91.193.68.214 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 14 Sep 2010 13:43:10 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 32 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: 91.193.68.214 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.9) Gecko/20100825 Thunderbird/3.1.3 In-Reply-To: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) 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:74959 Archived-At: On 14.09.2010 14:15, Deniz Dogan wrote: > 2010/9/14 Gary: >> Following Xah Lee's excellent tutorial, I have been able to get the >> basics done - syntax highlighting, indentation, and so on. What I am >> missing is a small part of the syntax highlighting related to variables. >> >> Declarations work fine - for example >> int x = 0 >> is correctly highlighted. What I can't work out how to do is to >> highlight declared variables in the rest of the code, for example when I >> later use x such as >> x = x+1 >> >> Does anyone have any ideas? Ideally I'd like to only highlight those >> variables I have really declared, not something that just looks like it >> *might* be a variable, so I can see immediately if I've made a mistake >> in my coding or typing. >> > > To do this in a sensible way you need a real parser, which can be > implemented using e.g. Semantic[1]. Simple regular expressions and > such cannot be used for this purpose in a sensible way. Really by '(define-generic-mode ...)' you usually specify regex. There are possibility use functions for MATCHER (see doc for 'font-lock-keywords'). You can implement rudimental parser by that way, but you must carefully wrote it for performance reason. Is there any good example of use function for MATCHER?