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: Re: How to flatten a one-level-deep list? Date: Fri, 20 May 2016 19:20:32 +0200 Message-ID: <87bn40prxb.fsf@mbork.pl> References: <877fes54pz.fsf@mbork.pl> <20160518082123.GB4640@tuxteam.de> <87lh37vh9q.fsf@mbork.pl> <86mvnnaxcm.fsf@student.uu.se> <87d1ogixj0.fsf@web.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1463764875 27745 80.91.229.3 (20 May 2016 17:21:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 20 May 2016 17:21:15 +0000 (UTC) Cc: help-gnu-emacs@gnu.org To: Michael Heerdegen Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri May 20 19:21:08 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 1b3o6k-0008EK-Tl for geh-help-gnu-emacs@m.gmane.org; Fri, 20 May 2016 19:21:07 +0200 Original-Received: from localhost ([::1]:55713 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b3o6k-0003a7-7I for geh-help-gnu-emacs@m.gmane.org; Fri, 20 May 2016 13:21:06 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:51795) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b3o6M-0003Zn-2s for help-gnu-emacs@gnu.org; Fri, 20 May 2016 13:20:43 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b3o6H-0000Ov-S0 for help-gnu-emacs@gnu.org; Fri, 20 May 2016 13:20:41 -0400 Original-Received: from mail.mojserwer.eu ([2a01:5e00:2:52::8]:51201) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b3o6H-0000Oi-Gg for help-gnu-emacs@gnu.org; Fri, 20 May 2016 13:20:37 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by mail.mojserwer.eu (Postfix) with ESMTP id BDAC6B9033F; Fri, 20 May 2016 19:20:35 +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 xHysrNrsmJ8J; Fri, 20 May 2016 19:20:33 +0200 (CEST) Original-Received: from localhost (98-171.echostar.pl [213.156.98.171]) by mail.mojserwer.eu (Postfix) with ESMTPSA id 5C5A3B9033E; Fri, 20 May 2016 19:20:33 +0200 (CEST) User-agent: mu4e 0.9.16; emacs 25.1.50.1 In-reply-to: <87d1ogixj0.fsf@web.de> 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:110076 Archived-At: On 2016-05-20, at 17:01, Michael Heerdegen wrote: > How would you call the proposed functionality then? > > I'm asking because I incidentally need a name for the analog stream > operation I want to add to stream.el: > > #+begin_src emacs-lisp > (defun stream-??? (stream-of-streams) > "Concatenate all streams in STREAM-OF-STREAMS an return the result. > All elements in STREAM-OF-STREAMS must be streams. The result is > always a stream." > (stream-reduce #'stream-append (stream-empty) stream-of-streams)) > #+end_src Concatenate? ;-) > Thanks, > > Michael. Best, -- Marcin Borkowski http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski Faculty of Mathematics and Computer Science Adam Mickiewicz University