From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.help Subject: Re: Adding functionality to a minor mode Date: Mon, 07 Feb 2022 19:05:53 +0100 Message-ID: <87k0e6zh4u.fsf@web.de> References: <8735kvtdvh.fsf@ericabrahamsen.net> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30373"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:jEdaVThjKnrh7sLmsTOTfBQQMI8= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Mon Feb 07 19:33:24 2022 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nH8pI-0007ih-K5 for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 07 Feb 2022 19:33:24 +0100 Original-Received: from localhost ([::1]:59438 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nH8pH-0004rE-De for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 07 Feb 2022 13:33:23 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:54082) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nH8P6-0006FT-Jl for help-gnu-emacs@gnu.org; Mon, 07 Feb 2022 13:06:21 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:36642) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nH8Oq-0005Ad-7Q for help-gnu-emacs@gnu.org; Mon, 07 Feb 2022 13:06:09 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1nH8Om-00035N-On for help-gnu-emacs@gnu.org; Mon, 07 Feb 2022 19:06:00 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -13 X-Spam_score: -1.4 X-Spam_bar: - X-Spam_report: (-1.4 / 5.0 requ) BAYES_00=-1.9, FREEMAIL_FORGED_FROMDOMAIN=0.248, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 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-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:135800 Archived-At: goncholden writes: > I am also struck about what happens when "(define-minor-mode > rich-minor-mode" is used to disable the mode. I suppose that "(when > richerenkov-minor-mode" would evaluate to false, but the other parts > would evaluate. Yes. Whenever you turn the mode on or off, the complete body is evaluated normally, with the mode variable bound to a non-nil value when the mode has been enabled and nil else. M-: (macroexpand-1 '(define-minor-mode rich-minor-mode ...)) RET to see the macroexpanded code of your definition - helps in understanding. Michael.