From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: phillip.lord@newcastle.ac.uk (Phillip Lord) Newsgroups: gmane.emacs.help Subject: Re: Why is it not possible to use "nil" any more in init files ? Date: Wed, 26 Nov 2014 14:18:42 +0000 Message-ID: <87d28a3v0d.fsf@newcastle.ac.uk> References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1417011559 21862 80.91.229.3 (26 Nov 2014 14:19:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 26 Nov 2014 14:19:19 +0000 (UTC) Cc: help-gnu-emacs@gnu.org To: Alexandre Oberlin Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Nov 26 15:19:11 2014 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 1XtdR1-0007Xb-4d for geh-help-gnu-emacs@m.gmane.org; Wed, 26 Nov 2014 15:19:11 +0100 Original-Received: from localhost ([::1]:34109 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XtdR0-00043i-Le for geh-help-gnu-emacs@m.gmane.org; Wed, 26 Nov 2014 09:19:10 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:47932) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XtdQe-0003xE-Rj for help-gnu-emacs@gnu.org; Wed, 26 Nov 2014 09:18:54 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XtdQZ-0002HQ-P7 for help-gnu-emacs@gnu.org; Wed, 26 Nov 2014 09:18:48 -0500 Original-Received: from cheviot22.ncl.ac.uk ([128.240.234.22]:58737) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XtdQZ-0002HM-Ih for help-gnu-emacs@gnu.org; Wed, 26 Nov 2014 09:18:43 -0500 Original-Received: from smtpauth-vm.ncl.ac.uk ([10.8.233.129] helo=smtpauth.ncl.ac.uk) by cheviot22.ncl.ac.uk with esmtp (Exim 4.63) (envelope-from ) id 1XtdQZ-00048i-D3; Wed, 26 Nov 2014 14:18:43 +0000 Original-Received: from jangai.ncl.ac.uk ([10.66.67.223] helo=localhost) by smtpauth.ncl.ac.uk with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.63) (envelope-from ) id 1XtdQY-0007Lg-Vr; Wed, 26 Nov 2014 14:18:42 +0000 In-Reply-To: (Alexandre Oberlin's message of "Tue, 25 Nov 2014 17:10:21 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 128.240.234.22 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:101222 Archived-At: Alexandre Oberlin writes: > On top of that, not having the explicit arguments work as once expected d= oes > not help. Really, ain=E2=80=99t it a bit confusing to have > (cua-mode -1) > return nil and > (cua-mode nil) > return t ? Only if you actually do this. For instance, (cua-mode -1) (cua-mode 1) works just fine and as expected. Or even=20 (cua-mode 0) (cua-mode 1) Bottom line is that nil in lisp is overloaded. In this case, it means both "explicit false" and "no argument supplied". Life is a compromise, nil double so. Phil