From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Marcin Borkowski Newsgroups: gmane.emacs.help Subject: How to flatten a one-level-deep list? Date: Wed, 18 May 2016 07:12:56 +0200 Message-ID: <877fes54pz.fsf@mbork.pl> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1463548431 21230 80.91.229.3 (18 May 2016 05:13:51 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 18 May 2016 05:13:51 +0000 (UTC) To: Help Gnu Emacs mailing list Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed May 18 07:13:44 2016 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 1b2tni-0005zu-Gc for geh-help-gnu-emacs@m.gmane.org; Wed, 18 May 2016 07:13:42 +0200 Original-Received: from localhost ([::1]:42996 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2tne-0003ln-GH for geh-help-gnu-emacs@m.gmane.org; Wed, 18 May 2016 01:13:38 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:53835) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2tnH-0003lc-6R for help-gnu-emacs@gnu.org; Wed, 18 May 2016 01:13:16 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b2tnB-00067K-6z for help-gnu-emacs@gnu.org; Wed, 18 May 2016 01:13:14 -0400 Original-Received: from mail.mojserwer.eu ([2a01:5e00:2:52::8]:37859) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2tnA-000661-Sa for help-gnu-emacs@gnu.org; Wed, 18 May 2016 01:13:09 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by mail.mojserwer.eu (Postfix) with ESMTP id 99330B846B3 for ; Wed, 18 May 2016 07:13:03 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mail.mojserwer.eu Original-Received: from mail.mojserwer.eu ([127.0.0.1]) by localhost (mail.mojserwer.eu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DcKY3qj-rJ4I for ; Wed, 18 May 2016 07:13:01 +0200 (CEST) Original-Received: from localhost (98-171.echostar.pl [213.156.98.171]) by mail.mojserwer.eu (Postfix) with ESMTPSA id 49B21B846B0 for ; Wed, 18 May 2016 07:13:01 +0200 (CEST) User-agent: mu4e 0.9.16; emacs 25.1.50.1 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 2a01:5e00:2:52::8 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:110040 Archived-At: Hi, I have a list of lists of atoms, and I want to have a flat list containing these atoms. I could use -flatten from dash.el, but I'd prefer not to introduce such a dependency for this one function alone. Is there anything *in core Emacs* to do it, or should I just write my own version? TIA, -- Marcin Borkowski http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski Faculty of Mathematics and Computer Science Adam Mickiewicz University