From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=) Newsgroups: gmane.lisp.guile.devel Subject: Re: Shorter lambda expressions Date: Fri, 24 Jan 2014 11:54:11 +0100 Message-ID: <87iot9lkfg.fsf@gnu.org> References: <87ppnjl2rd.fsf@netris.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1390560882 23704 80.91.229.3 (24 Jan 2014 10:54:42 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 24 Jan 2014 10:54:42 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Fri Jan 24 11:54:49 2014 Return-path: Envelope-to: guile-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 1W6ePR-0004Vt-6f for guile-devel@m.gmane.org; Fri, 24 Jan 2014 11:54:49 +0100 Original-Received: from localhost ([::1]:45604 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W6ePQ-0004hf-Qj for guile-devel@m.gmane.org; Fri, 24 Jan 2014 05:54:48 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40365) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W6ePF-0004h8-Av for guile-devel@gnu.org; Fri, 24 Jan 2014 05:54:44 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W6eP4-00065q-9E for guile-devel@gnu.org; Fri, 24 Jan 2014 05:54:37 -0500 Original-Received: from plane.gmane.org ([80.91.229.3]:40809) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W6eP4-00065f-2j for guile-devel@gnu.org; Fri, 24 Jan 2014 05:54:26 -0500 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1W6eP1-0004K6-PR for guile-devel@gnu.org; Fri, 24 Jan 2014 11:54:23 +0100 Original-Received: from pluto.bordeaux.inria.fr ([193.50.110.57]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 24 Jan 2014 11:54:23 +0100 Original-Received: from ludo by pluto.bordeaux.inria.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 24 Jan 2014 11:54:23 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 19 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: pluto.bordeaux.inria.fr X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 5 =?utf-8?Q?Pluvi=C3=B4se?= an 222 de la =?utf-8?Q?R?= =?utf-8?Q?=C3=A9volution?= X-PGP-Key-ID: 0xEA52ECF4 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 83C4 F8E5 10A3 3B4C 5BEA D15D 77DD 95E2 EA52 ECF4 X-OS: x86_64-unknown-linux-gnu User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3 (gnu/linux) Cancel-Lock: sha1:suBuM9axeyxGTlM2wdw8XRZsiqw= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 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:16841 Archived-At: Panicz Maciej Godek skribis: > I think it would be best to extend SRFI-26 with the option of using > <1>, <2>, ... placeholders, where the resulting lambda would get the > arity indicated by the highest placeholder. Also, it should support > nested expressions. > Personally, I'd prefer it over the Gauche-style extension. I think I’d prefer this too, but actually I’m mostly satisfied with SRFI-26. One related thing I sometimes lack is: (define-syntax-rule (thunk exp ...) (lambda () exp ...)) (Found in Racket, notably.) Ludo’.