From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.devel Subject: RE: The poor state of documentation of pcase like things. Date: Thu, 17 Dec 2015 13:56:06 -0800 (PST) Message-ID: <0e515b9f-c244-4e48-a711-bfc3e0a2405a@default> References: <20151216202605.GA3752@acm.fritz.box> <87fuz0ydvb.fsf@russet.org.uk> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1450389396 21251 80.91.229.3 (17 Dec 2015 21:56:36 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 17 Dec 2015 21:56:36 +0000 (UTC) Cc: Alan Mackenzie , Emacs developers To: phillip.lord@russet.org.uk, Kaushal Modi Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Dec 17 22:56:21 2015 Return-path: Envelope-to: ged-emacs-devel@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 1a9gX7-0004a3-5A for ged-emacs-devel@m.gmane.org; Thu, 17 Dec 2015 22:56:21 +0100 Original-Received: from localhost ([::1]:57373 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a9gX6-0006Sr-NC for ged-emacs-devel@m.gmane.org; Thu, 17 Dec 2015 16:56:20 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34660) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a9gX3-0006Sj-HZ for emacs-devel@gnu.org; Thu, 17 Dec 2015 16:56:18 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a9gX0-00025L-98 for emacs-devel@gnu.org; Thu, 17 Dec 2015 16:56:17 -0500 Original-Received: from aserp1040.oracle.com ([141.146.126.69]:33491) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a9gX0-000256-3T for emacs-devel@gnu.org; Thu, 17 Dec 2015 16:56:14 -0500 Original-Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tBHLuALB012629 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 17 Dec 2015 21:56:10 GMT Original-Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tBHLuAtc017965 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Thu, 17 Dec 2015 21:56:10 GMT Original-Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tBHLu8fk004206; Thu, 17 Dec 2015 21:56:09 GMT In-Reply-To: <87fuz0ydvb.fsf@russet.org.uk> X-Priority: 3 X-Mailer: Oracle Beehive Extensions for Outlook 2.0.1.9 (901082) [OL 12.0.6691.5000 (x86)] X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 141.146.126.69 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:196435 Archived-At: > pattern match is really a form of control flow in its own right. OT, but no, pattern matching per se has nothing to do with control flow. You can *combine* pattern matching with control flow (as `pcase' does, testing the results of pattern-match binding to control the flow). But pattern matching itself does not imply any effect on control flow.