From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Marcin Borkowski Newsgroups: gmane.emacs.help Subject: Re: Why call font-lock-add-keywords in a mode hook? Date: Tue, 26 Jan 2016 09:51:04 +0100 Message-ID: <87fuxkbu6f.fsf@mbork.pl> References: <878u3ec6xk.fsf@mbork.pl> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1453798289 2495 80.91.229.3 (26 Jan 2016 08:51:29 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 26 Jan 2016 08:51:29 +0000 (UTC) Cc: help-gnu-emacs@gnu.org To: Stefan Monnier Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Jan 26 09:51:28 2016 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 1aNzLU-0003iY-1z for geh-help-gnu-emacs@m.gmane.org; Tue, 26 Jan 2016 09:51:28 +0100 Original-Received: from localhost ([::1]:42431 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aNzLT-0000ag-3L for geh-help-gnu-emacs@m.gmane.org; Tue, 26 Jan 2016 03:51:27 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40456) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aNzLH-0000aO-LB for help-gnu-emacs@gnu.org; Tue, 26 Jan 2016 03:51:16 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aNzLG-0001Xm-FP for help-gnu-emacs@gnu.org; Tue, 26 Jan 2016 03:51:15 -0500 Original-Received: from mail.mojserwer.eu ([2a01:5e00:2:52::8]:47620) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aNzLG-0001Xe-7F for help-gnu-emacs@gnu.org; Tue, 26 Jan 2016 03:51:14 -0500 Original-Received: from localhost (localhost [127.0.0.1]) by mail.mojserwer.eu (Postfix) with ESMTP id EC47F8F201C; Tue, 26 Jan 2016 09:51:08 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at mail.mojserwer.eu Original-Received: from mail.mojserwer.eu ([127.0.0.1]) by localhost (mail.mojserwer.eu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wk6c37swufxC; Tue, 26 Jan 2016 09:51:05 +0100 (CET) Original-Received: from localhost (unknown [IPv6:2001:808:114:6:a288:b4ff:fe90:5e24]) by mail.mojserwer.eu (Postfix) with ESMTPSA id 7E6D18F2016; Tue, 26 Jan 2016 09:51:05 +0100 (CET) User-agent: mu4e 0.9.13; emacs 25.1.50.1 In-reply-to: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 2a01:5e00:2:52::8 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:108863 Archived-At: On 2016-01-26, at 05:14, Stefan Monnier wrote: >> My question: why would I want to call this function in a hook if I can >> specify the mode in its invocation? > > Because the other use is fundamentally unclean, requiring > a re-implementation of major-mode's inheritance, whereas you get it for > free if you use nil for `mode' and call it from the mode's hook instead. Ah, so that means that if I use a non-nil value for the `mode' argument, say x-mode, and launch a buffer in y-mode, which derives from x-mode, then I won't have my keywords there? > Stefan Best, -- Marcin Borkowski http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski Faculty of Mathematics and Computer Science Adam Mickiewicz University