From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Barry Margolin Newsgroups: gmane.emacs.help Subject: Re: using setq to create lists based on other lists... Date: Tue, 04 Dec 2018 04:04:52 -0500 Organization: A noiseless patient Spider Message-ID: References: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 X-Trace: blaine.gmane.org 1543914216 1457 195.159.176.226 (4 Dec 2018 09:03:36 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 4 Dec 2018 09:03:36 +0000 (UTC) User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Dec 04 10:03:32 2018 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gU6c8-0000Gy-Ky for geh-help-gnu-emacs@m.gmane.org; Tue, 04 Dec 2018 10:03:32 +0100 Original-Received: from localhost ([::1]:54666 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gU6eF-0000Al-BO for geh-help-gnu-emacs@m.gmane.org; Tue, 04 Dec 2018 04:05:43 -0500 X-Received: by 2002:a1c:9cc3:: with SMTP id f186mr2097799wme.11.1543914296156; Tue, 04 Dec 2018 01:04:56 -0800 (PST) Original-Path: usenet.stanford.edu!r78no429505wmg.0!news-out.google.com!p18ni1845wmc.0!nntp.google.com!proxad.net!feeder1-2.proxad.net!feeder.erje.net!2.eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!reader01.eternal-september.org!barmar.motzarella.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 15 Original-Injection-Info: barmar.motzarella.org; posting-host="f7ee4e2e01e774dd371d52ce6edcb0c7"; logging-data="28831"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX184x8seNopTvWAaQl5FOLWH" Cancel-Lock: sha1:WxSj1uBHWA6AaqC8bwtFM0nf99U= Original-Xref: usenet.stanford.edu gnu.emacs.help:224718 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.help:118846 Archived-At: In article , Robert Thorpe wrote: > I've seen lots of beginners write programs that setq undefined symbols > and now I know why. There's nothing wrong with it in Emacs Lisp and a number of other Lisp dialects. I think Common Lisp was the first specification that made it questionable, but it was commonplace in the days of Maclisp, which is the dialect that Emacs Lisp is most directly descended from. -- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me ***