Path: utzoo!mnetor!uunet!husc6!bbn!rochester!PT.CS.CMU.EDU!CIVE.RI.CMU.EDU!jwb
From: jwb@CIVE.RI.CMU.EDU (John Baugh)
Newsgroups: comp.lang.lisp
Subject: Looking for YAPS
Message-ID: <1214@PT.CS.CMU.EDU>
Date: 24 Mar 88 18:23:56 GMT
Sender: netnews@PT.CS.CMU.EDU
Distribution: comp.lang.lisp
Organization: Carnegie-Mellon University, CS/RI
Lines: 19
Keywords: YAPS Production Systems Common Lisp

Does anyone know how of a version of YAPS (Yet Another Production 
System) that runs in Common Lisp (and how I might obtain it)?

Failing that, what I'd like to find is:

   a production system written in Common Lisp that:
      - is similar to YAPS in expressiveness (i.e., allows
          testing of arbitrary lisp expressions on the LHS,
	  and lisp code on the RHS)
      - has an efficient pattern matcher (like Rete)
      - has a reasonable conflict resolution strategy (like 
          OPS or YAPS)
      - has some modularity (i.e., localized rule-sets)
      - is, of course, public domain

Thanks in advance,

John Baugh   (jwb@cive.ri.cmu.edu)
Carnegie Mellon University