Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!wuarchive!udel!burdvax!finin@prc.unisys.com
From: finin@prc.unisys.com (Tim Finin)
Newsgroups: comp.lang.lisp
Subject: Re: Looking for PD Frame system in LISP or Smalltalk
Message-ID: <12899@burdvax.PRC.Unisys.COM>
Date: 20 Feb 90 14:12:39 GMT
References: <16143@well.sf.ca.us>
Sender: news@PRC.Unisys.COM
Organization: Unisys Center for Advanced Information Technology
Lines: 24
In-reply-to: frobozz@well.sf.ca.us (Jordan Bortz)

In article <16143@well.sf.ca.us>, frobozz@well (Jordan Bortz) writes:
>
>Hi --- I'm looking for source code to a simple frame
>databse, ala Winston & Horn, in LISP, SCHEME, or Smalltalk.
>
>Any code or pointers would be greatly appreciated! Thanks,

You can ftp a simple frame system from ~ftp/pub/pfl on
linc.cis.upenn.edu.  This directory includes the source files as well
as two files which roll up the source -- a shar file (pflshar) and a
tar file (pfltar).  This simple pedagogical was descibed in:

	Finin, Tim, ``Understanding Frame Languages'', AI Expert,
	November, 1986.

	Finin, Tim, ``Implementing PFL'', AI Expert, December, 1986.

Tim



 Tim Finin                                   finin@prc.unisys.com
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