From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: Appending lists Date: Tue, 15 Jun 2021 02:56:16 +0200 Message-ID: <87v96g2bf3.fsf@zoho.eu> References: Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="22900"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:gCr1Oi4VV0KoXh3hFrnBlkWxWlM= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Jun 15 02:57:10 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 1lsxO9-0005dQ-By for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 15 Jun 2021 02:57:09 +0200 Original-Received: from localhost ([::1]:33146 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lsxO7-0004ds-FK for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 14 Jun 2021 20:57:07 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:34398) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lsxNT-0004U9-GW for help-gnu-emacs@gnu.org; Mon, 14 Jun 2021 20:56:29 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:56400) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lsxNR-0002T4-TO for help-gnu-emacs@gnu.org; Mon, 14 Jun 2021 20:56:27 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1lsxNQ-0004nW-5Y for help-gnu-emacs@gnu.org; Tue, 15 Jun 2021 02:56:24 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never 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: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action 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:130829 Archived-At: Pierpaolo Bernardi wrote: > (defvar newlist > (append city district)) Looks - bad. Forget about the initvalue, here people will have to agree to disagree tho. It makes development less "athletic" and fun, and more confusing when debugging/optimization and so re-eval start. Instead, use `defvar' to mute the byte-compiler then on the next line use `setq'. IOM! newlist - bad name > Il giorno 14 giugno 2021, alle ore 18:40, > henri-biard@francemel.fr ha scritto: > > I want to make a new list named newlist to be > > (append city district) > > and put the new list into a new list. There are many ways to do that. For example (setq list-one '(1 2)) ; (1 2) (setq list-one-two-times (list list-one list-one)) ; ((1 2) (1 2)) (setq list-one '(1 2 3)) ; (1 2 3) list-one-two-times ; ((1 2) (1 2)) <-- still -- underground experts united https://dataswamp.org/~incal