Path: utzoo!attcan!uunet!dino!ux1.cso.uiuc.edu!iuvax!mailrus!cs.utexas.edu!bradley
From: bradley@cs.utexas.edu (Bradley L. Richards)
Newsgroups: comp.lang.prolog
Subject: Re: (free) Prolog interpreter/compiler with sources needed
Message-ID: <148@qt.cs.utexas.edu>
Date: 14 Feb 90 17:16:10 GMT
References: <1837@bruce.OZ>
Organization: U. Texas CS Dept., Austin, Texas
Lines: 9

I don't know what you mean by "tractible" but I can provide the source code
to Fuzzy Prolog, which is an operational (but not production quality)
Prolog interpreter implementing uncertainly.  It is approximately 5500
lines of Ada, so it's not a toy but may be larger than you're looking
for.  Of course, a lot of the length is the lexical analyzer and parser,
and the interpreter core is probably around 1500 lines.

Bradley
(bradley@cs.utexas.edu)