From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: =?ISO-8859-1?Q?Andreas_R=F6hler?= Newsgroups: gmane.emacs.devel Subject: Re: proposal to make null string handling more emacs-y Date: Sun, 29 Apr 2012 19:29:16 +0200 Message-ID: <4F9D7A6C.9070806@online.de> References: <4F9D7399.4050703@online.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1335720576 14300 80.91.229.3 (29 Apr 2012 17:29:36 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 29 Apr 2012 17:29:36 +0000 (UTC) Cc: 'Steve Yegge' , 'Emacs developers' To: Drew Adams Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Apr 29 19:29:35 2012 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 1SOXwA-0004A8-Lj for ged-emacs-devel@m.gmane.org; Sun, 29 Apr 2012 19:29:30 +0200 Original-Received: from localhost ([::1]:48544 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SOXw9-0001NW-U5 for ged-emacs-devel@m.gmane.org; Sun, 29 Apr 2012 13:29:29 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:40053) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SOXw7-0001NI-9H for emacs-devel@gnu.org; Sun, 29 Apr 2012 13:29:28 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SOXw5-0003jQ-Jf for emacs-devel@gnu.org; Sun, 29 Apr 2012 13:29:26 -0400 Original-Received: from moutng.kundenserver.de ([212.227.126.186]:57391) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SOXw5-0003h0-AL for emacs-devel@gnu.org; Sun, 29 Apr 2012 13:29:25 -0400 Original-Received: from [192.168.178.27] (brln-4dbc4ac0.pool.mediaWays.net [77.188.74.192]) by mrelayeu.kundenserver.de (node=mrbap0) with ESMTP (Nemesis) id 0LdKy1-1Rxyfs3IA5-00iS17; Sun, 29 Apr 2012 19:29:18 +0200 User-Agent: Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9.2.28) Gecko/20120306 SUSE/3.1.20 Thunderbird/3.1.20 In-Reply-To: X-Provags-ID: V02:K0:kP3fpC1ShcMTzJAQ6KiAIqzlGCmLPp3uqoA5v9GTtrA dIWnAsV0rxrgSW26piOycPdcGSQ+uQQeMskpnvkeD0Cl+f+au6 x83TZbaGVJnRx5vc51FbfhM+Lajo49v7mxIIQdnUH8rAXtH5lp W0wbGB2zGrv92oixKxEWNGahnT4Qbpztycm0Nhg46of5t2CVty CAcbokqUclZNUd8DUtRUQZqigMJdgVRCh7C3EU7qm7GDvRUAFC 7/pf8QmAvHyuTiY+SjRjOJ6TxpmgJTBazryGteC/v7mIb95bY9 AS5w+SEJjSILTOhPAR7Hobjb6OgVoB1jxxcO0xWHbPq1cIJoc9 srTxgcqquMdpJiC+eEjRLg9rHQOtrMaNwUPh28EDL X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 212.227.126.186 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:150141 Archived-At: Am 29.04.2012 19:08, schrieb Drew Adams: >>> (string= nil "") >> >> (if "" >> (message "%s" "empty string proved true") >> (message "%s" "empty string proved false")) >> ==> "empty string proved true" > > "" is not equal or eq or eql to nil. > But "" is string= to nil. > > in other words said: if the empty list is nil, why the empty string should yield true? for me (equal nil "")==> t would be plausible