From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Neil Jerram Newsgroups: gmane.lisp.guile.devel Subject: Re: Dotted pair call argument Date: Tue, 21 Feb 2012 20:31:05 +0000 Message-ID: <87ehtoc4ja.fsf@neil-laptop.ossau.uklinux.net> References: <8762f09tc1.fsf@fencepost.gnu.org> <87d39819mp.fsf@netris.org> <87vcn0ch49.fsf@fencepost.gnu.org> <8762f014ob.fsf@netris.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1329856314 9962 80.91.229.3 (21 Feb 2012 20:31:54 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 21 Feb 2012 20:31:54 +0000 (UTC) Cc: David Kastrup , guile-devel@gnu.org To: Mark H Weaver Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Tue Feb 21 21:31:52 2012 Return-path: Envelope-to: guile-devel@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RzwNL-0006mL-8s for guile-devel@m.gmane.org; Tue, 21 Feb 2012 21:31:51 +0100 Original-Received: from localhost ([::1]:53144 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RzwNK-0002i6-R7 for guile-devel@m.gmane.org; Tue, 21 Feb 2012 15:31:50 -0500 Original-Received: from eggs.gnu.org ([140.186.70.92]:41189) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RzwNE-0002WK-R1 for guile-devel@gnu.org; Tue, 21 Feb 2012 15:31:48 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RzwNA-0000kj-M3 for guile-devel@gnu.org; Tue, 21 Feb 2012 15:31:44 -0500 Original-Received: from out1.ip02ir2.opaltelecom.net ([62.24.128.238]:41015) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RzwN5-0000jh-Cu; Tue, 21 Feb 2012 15:31:35 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av0EAKT+Q09OlcyG/2dsb2JhbABDskKBCIFzAQEEATocIwULCAMhJQ8BBCUkE4gAA7hRjCoWAQkCEwMBAgKDXwIBg3YEqCU X-IronPort-AV: E=Sophos;i="4.73,459,1325462400"; d="scan'208";a="385955176" Original-Received: from host-78-149-204-134.as13285.net (HELO arudy) ([78.149.204.134]) by out1.ip02ir2.opaltelecom.net with ESMTP; 21 Feb 2012 20:31:32 +0000 Original-Received: from neil-laptop.ossau.uklinux.net.ossau.homelinux.net (host-78-149-204-134.as13285.net [78.149.204.134]) by arudy (Postfix) with ESMTPA id 330E938037; Tue, 21 Feb 2012 20:31:06 +0000 (GMT) In-Reply-To: <8762f014ob.fsf@netris.org> (Mark H. Weaver's message of "Tue, 21 Feb 2012 12:23:32 -0500") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 62.24.128.238 X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Original-Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.devel:13916 Archived-At: Mark H Weaver writes: > However, (f . (g x y)) is read as (f g x y), so it's impossible for > 'eval' to distinguish these two cases. Unfortunately, (f g x y) has a > very different meaning than (apply f (g x y)). The first means to apply > 'f' to three arguments. The second means to apply 'g' to two arguments, > and then apply 'f' to the list of arguments resulting from (g x y). Thanks, Mark. I've often wondered the same thing as David, so I appreciate your explanation. Neil