Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!pasteur!agate!violet.berkeley.edu!ed298-ak
From: ed298-ak@violet.berkeley.edu (Edouard Lagache)
Newsgroups: comp.lang.prolog
Subject: Re: Prolog Grammar Rules (a question on interpreters)
Message-ID: <7173@agate.BERKELEY.EDU>
Date: 25 Feb 88 04:53:57 GMT
References: <646@cresswell.quintus.UUCP> <489@ashton.UUCP> <667@cresswell.quintus.UUCP> <204@gould.doc.ic.ac.uk>
Sender: usenet@agate.BERKELEY.EDU
Reply-To: lagache@violet.berkeley.edu.UUCP (Edouard Lagache)
Organization: University of California, Berkeley
Lines: 13
Keywords: DCGs tutorial, Problems with implementing the example code.


	I greatly admired Richard O'Keefe's use of grammer rules, and I 
	have almost convinced myself that I understand what is going on.
	However, my PROLOG interpreter doesn't understand - it crashes!
	Now my interpreter is very good at crashing so that doesn't mean
	much (yes I know, I need a new interpreter, computer, production
	rule system ..........), but I was curious, has anyone else had
	problems running Richard O'Keefe's examples.  I have a feeling
	that a number of PROLOG systems may have taken Clocksin and 
	Mellish too seriously as the definitive characterization of the
	language.

					Edouard Lagache
					lagache@violet.berkeley.edu