From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.help Subject: Re: What is a "superior mode"? Date: Wed, 10 Mar 2021 05:26:53 +0200 Message-ID: <83h7ljpu2q.fsf@gnu.org> References: <878s6xhqp6.fsf@mbork.pl> <874khkyqgs.fsf@mbork.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="22986"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Mar 10 04:27:15 2021 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 1lJpVC-0005rv-Cr for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 10 Mar 2021 04:27:14 +0100 Original-Received: from localhost ([::1]:40262 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lJpVB-0007EI-ES for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 09 Mar 2021 22:27:13 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41144) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lJpUt-0007Cm-Mm for help-gnu-emacs@gnu.org; Tue, 09 Mar 2021 22:26:55 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:54054) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lJpUt-0005Eb-G0 for help-gnu-emacs@gnu.org; Tue, 09 Mar 2021 22:26:55 -0500 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:1541 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lJpUs-0005fX-Rz for help-gnu-emacs@gnu.org; Tue, 09 Mar 2021 22:26:55 -0500 In-Reply-To: <874khkyqgs.fsf@mbork.pl> (message from Marcin Borkowski on Tue, 09 Mar 2021 22:20:03 +0100) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 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:128382 Archived-At: > From: Marcin Borkowski > Date: Tue, 09 Mar 2021 22:20:03 +0100 > Cc: Help Gnu Emacs mailing list > > >> -- Function: prog-first-column > >> Call this function instead of using a literal value (usually, zero) > >> of the column number for indenting top-level program constructs. > >> The function’s value is the column number to use for top-level > >> constructs. When no superior mode is in effect, this function > >> returns zero. > >> What is a "superior mode" (and a "sub-mode", for that matter)? > > > > It refers to a "multiple major modes" situation. Like Python embedded > > in HTML, that sort of thing. Or C inside Latex. > > Yeah, I know now. But: are "multiple modes" supported by core Emacs? Those facilities are some simple infrastructure in support of such modes.