From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Miles Bader Newsgroups: gmane.emacs.devel Subject: Re: datatypes in Elisp Info: mention "things" for which there is no "thing" datatype - e.g. faces Date: Sat, 25 Jun 2005 07:16:37 +0900 Message-ID: References: <200506241841.j5OIfXp09629@raven.dms.auburn.edu> Reply-To: snogglethorpe@gmail.com, miles@gnu.org NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: sea.gmane.org 1119651895 4002 80.91.229.2 (24 Jun 2005 22:24:55 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 24 Jun 2005 22:24:55 +0000 (UTC) Cc: emacs-devel@gnu.org, drew.adams@oracle.com, miles@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jun 25 00:24:46 2005 Return-path: Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1DlwYR-0002D5-Th for ged-emacs-devel@m.gmane.org; Sat, 25 Jun 2005 00:21:44 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1DlwfY-0005Te-Pk for ged-emacs-devel@m.gmane.org; Fri, 24 Jun 2005 18:29:04 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Dlwd3-0004JU-Pw for emacs-devel@gnu.org; Fri, 24 Jun 2005 18:26:30 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Dlwd0-0004Hg-77 for emacs-devel@gnu.org; Fri, 24 Jun 2005 18:26:27 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Dlwcz-0004EZ-5A for emacs-devel@gnu.org; Fri, 24 Jun 2005 18:26:25 -0400 Original-Received: from [64.233.184.200] (helo=wproxy.gmail.com) by monty-python.gnu.org with esmtp (Exim 4.34) id 1DlwX9-0000MP-9g for emacs-devel@gnu.org; Fri, 24 Jun 2005 18:20:23 -0400 Original-Received: by wproxy.gmail.com with SMTP id 40so162922wri for ; Fri, 24 Jun 2005 15:16:38 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=rKzvnjI9cRmuafKTMQUtG7LpOO6wpgj0OzoYruQIvMavXsDgqt3ozdcpyLofd3xNiwqnoac3SuIpHYuQJOGnNbsUrlfOMG0Mx0+d7+e6XHK3TVhxc9zsHw/5cTOqlRnqf5F9wUuQkjm9iVJoFc65aDXTOCmWX/FJaURK+VhEtek= Original-Received: by 10.54.59.32 with SMTP id h32mr40400wra; Fri, 24 Jun 2005 15:16:37 -0700 (PDT) Original-Received: by 10.54.19.31 with HTTP; Fri, 24 Jun 2005 15:16:37 -0700 (PDT) Original-To: Luc Teirlinck In-Reply-To: <200506241841.j5OIfXp09629@raven.dms.auburn.edu> Content-Disposition: inline X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:39463 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:39463 On 6/25/05, Luc Teirlinck wrote: > I tend to think of datatypes in lisp as being disjoint categories of > values; a value can only every have one datatype. >=20 > It can only have one _primitive_ data type (returned by type-of), but > it can have tons of data types. See `(elisp)Lisp Data Types' and > `(elisp)Type Predicates'. Man, did any of you guys read past the 1st paragraph of my message...? The most important of a datatype, I think, is that it's a property of the _value_, which is not really true of faces etc. -Miles --=20 Do not taunt Happy Fun Ball.