From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ralph Schleicher Newsgroups: gmane.emacs.bugs Subject: bug#2951: Suggestion: self-evaluating-p function Date: Tue, 14 Apr 2009 18:53:45 +0200 Organization: Ralph Schleicher, Freelance Engineer Message-ID: <877i1n18iu.fsf@echo.mueller-schleicher.i> References: <87myaogpr8.fsf@echo.mueller-schleicher.i> <87r5zy7u2f.fsf@echo.mueller-schleicher.i> <87ab6k6z9k.fsf@echo.mueller-schleicher.i> Reply-To: Ralph Schleicher , 2951@emacsbugs.donarmstrong.com NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1239728753 16090 80.91.229.12 (14 Apr 2009 17:05:53 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 14 Apr 2009 17:05:53 +0000 (UTC) Cc: 2951@emacsbugs.donarmstrong.com To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Apr 14 19:07:12 2009 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1Ltm5h-0003Ky-MU for geb-bug-gnu-emacs@m.gmane.org; Tue, 14 Apr 2009 19:06:34 +0200 Original-Received: from localhost ([127.0.0.1]:35027 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Ltm4J-0004rd-7K for geb-bug-gnu-emacs@m.gmane.org; Tue, 14 Apr 2009 13:05:07 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Ltm3E-0004ie-Tf for bug-gnu-emacs@gnu.org; Tue, 14 Apr 2009 13:04:00 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Ltm39-0004g4-AL for bug-gnu-emacs@gnu.org; Tue, 14 Apr 2009 13:03:59 -0400 Original-Received: from [199.232.76.173] (port=48544 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Ltm38-0004fl-Vc for bug-gnu-emacs@gnu.org; Tue, 14 Apr 2009 13:03:55 -0400 Original-Received: from rzlab.ucr.edu ([138.23.92.77]:51841) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Ltm37-0004Jx-Tu for bug-gnu-emacs@gnu.org; Tue, 14 Apr 2009 13:03:54 -0400 Original-Received: from rzlab.ucr.edu (rzlab.ucr.edu [127.0.0.1]) by rzlab.ucr.edu (8.13.8/8.13.8/Debian-3) with ESMTP id n3EH3oJh028644; Tue, 14 Apr 2009 10:03:51 -0700 Original-Received: (from debbugs@localhost) by rzlab.ucr.edu (8.13.8/8.13.8/Submit) id n3EH03eH027372; Tue, 14 Apr 2009 10:00:03 -0700 X-Loop: owner@emacsbugs.donarmstrong.com Resent-From: Ralph Schleicher Resent-To: bug-submit-list@donarmstrong.com Resent-CC: Emacs Bugs Resent-Date: Tue, 14 Apr 2009 17:00:03 +0000 Resent-Message-ID: Resent-Sender: owner@emacsbugs.donarmstrong.com X-Emacs-PR-Message: followup 2951 X-Emacs-PR-Package: emacs X-Emacs-PR-Keywords: Original-Received: via spool by 2951-submit@emacsbugs.donarmstrong.com id=B2951.123972803125768 (code B ref 2951); Tue, 14 Apr 2009 17:00:03 +0000 Original-Received: (at 2951) by emacsbugs.donarmstrong.com; 14 Apr 2009 16:53:51 +0000 X-Spam-Bayes: score:0.5 Bayes not run. spammytokens:Tokens not available. hammytokens:Tokens not available. Original-Received: from nsi67.de (nsi67.de [85.31.187.140]) by rzlab.ucr.edu (8.13.8/8.13.8/Debian-3) with ESMTP id n3EGrlDI025756 for <2951@emacsbugs.donarmstrong.com>; Tue, 14 Apr 2009 09:53:48 -0700 Original-Received: from bravo.mueller-schleicher.i (p57ADC12A.dip.t-dialin.net [87.173.193.42]) by nsi67.de (Postfix) with ESMTP id 06C7A780602; Tue, 14 Apr 2009 18:53:49 +0200 (CEST) Original-Received: from echo.mueller-schleicher.i (echo [192.168.178.5]) by bravo.mueller-schleicher.i (Postfix) with ESMTP id B52D1FC7E9; Tue, 14 Apr 2009 18:53:45 +0200 (CEST) Original-Received: by echo.mueller-schleicher.i (Postfix, from userid 1000) id 914374B00C3; Tue, 14 Apr 2009 18:53:45 +0200 (CEST) In-Reply-To: (Stefan Monnier's message of "Mon\, 13 Apr 2009 22\:06\:20 -0400") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.3 (gnu/linux) X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 3) Resent-Date: Tue, 14 Apr 2009 13:03:59 -0400 X-BeenThere: bug-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:27176 Archived-At: Stefan Monnier writes: >>>> (list symbol (if (self-evaluating-p value) >>>> value >>>> (list 'quote value)))) >>> >>> Why not just (list symbol (list 'quote value))) ? > >> Yes, this was my first attempt, too. But I got puzzled whether >> or not the extra quote matters in any way, especiall with lambda >> expressions. Since I couldn't find a satisfactory answer in the >> Elisp reference manual, I decided to get rid of it just to be save. > >> So, If you tell me that the quote does no harm no matter what Lisp >> object is quoted, I can live without a self-evaluating-p function. > > By definition (self-evaluating-p VALUE) tests whether evaluating VALUE > or evaluating (quote VALUE) will return the same thing. > I.e. the quote does no harm. Okay, thank you for your patience. -- Ralph