From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Pascal J. Bourguignon" Newsgroups: gmane.emacs.devel Subject: Re: Quoted lambda expressions Date: Sat, 17 Aug 2013 11:24:00 +0200 Organization: Informatimago Message-ID: <87d2pcllfz.fsf@informatimago.com> References: 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 1376731498 18054 80.91.229.3 (17 Aug 2013 09:24:58 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 17 Aug 2013 09:24:58 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Aug 17 11:25:01 2013 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 1VAckn-0003zG-AW for ged-emacs-devel@m.gmane.org; Sat, 17 Aug 2013 11:25:01 +0200 Original-Received: from localhost ([::1]:35075 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VAckm-0001Nj-U4 for ged-emacs-devel@m.gmane.org; Sat, 17 Aug 2013 05:25:00 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48297) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VAcke-0001Na-CO for emacs-devel@gnu.org; Sat, 17 Aug 2013 05:24:58 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VAckX-0001Es-L2 for emacs-devel@gnu.org; Sat, 17 Aug 2013 05:24:52 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:47899) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VAckX-0001Ed-Ey for emacs-devel@gnu.org; Sat, 17 Aug 2013 05:24:45 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1VAckT-0003kN-UA for emacs-devel@gnu.org; Sat, 17 Aug 2013 11:24:41 +0200 Original-Received: from amontsouris-651-1-54-119.w90-24.abo.wanadoo.fr ([90.24.133.119]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 17 Aug 2013 11:24:41 +0200 Original-Received: from pjb by amontsouris-651-1-54-119.w90-24.abo.wanadoo.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 17 Aug 2013 11:24:41 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 22 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: amontsouris-651-1-54-119.w90-24.abo.wanadoo.fr Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2 (gnu/linux) Cancel-Lock: sha1:MTUwOTZjNDg0NmQyNDY5MzUwMTdhZmVkOTE5NmZiM2QzZmM4Y2ZmZg== X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 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:162838 Archived-At: Xue Fuqiao writes: > AFAIK "(function (lambda ...))" and "#'(lambda ...)" are the same as > "(lambda ...)", because in subr.el: > > (defmacro lambda (&rest cdr) > [...] > (list 'function (cons 'lambda cdr))) > > But the first two forms are used 600+ times in lisp/ and 13 times in > doc/. Does it make sense to do some cleanup? > > (And some of them should not be changed, such as the one in "(elisp) > Anonymous Functions".) That lambda macro was a late addition in the standardization of Common Lisp. I assume it was similarly late in emacs lisp. That's the reason why some lisp programmers use #'(lambda …) instead of (lambda …). -- __Pascal Bourguignon__ http://www.informatimago.com/