Path: utzoo!utgpu!attcan!uunet!seismo!sundc!pitstop!sun!decwrl!labrea!rutgers!apple!dan From: dan@Apple.COM (Dan Allen) Newsgroups: comp.sys.mac.hypercard Subject: Re: Help wanted on HyperCard and Expert Systems Message-ID: <17871@apple.Apple.COM> Date: 27 Sep 88 23:17:27 GMT References: <670002@otter.hple.hp.com> Reply-To: dan@apple.com.UUCP (Dan Allen) Organization: Apple Computer Inc, Cupertino, CA Lines: 15 Yes, HyperCard COULD be a good front end for an expert system, although I do not know of anyone doing this yet. Yes, XCMDs can send messages to HyperCard and writing a small Prolog compiler/interpreter as an XCMD is feasible. (The whole Pascal compiler portion of Turbo Pascal, for example, is only 24K, but it was written in assembly, not C.) The other option proposed would be to pass Prolog requests to an already existing Prolog compiler running simultaneously under MultiFinder. This would probably require some sort of IPC which is not strictly supported in the current versions of MultiFinder, although you could probably do something by passing info back and forth through files written to the disk, but that is kind of messy and slow. Dan Allen Apple Computer