Re: Storing data and code in a Db with LISP-like interface

From: mAsterdam <mAsterdam_at_vrijdag.org>
Date: Wed, 26 Apr 2006 01:01:05 +0200
Message-ID: <444eaa0f$0$31647$e4fe514c@news.xs4all.nl>

You really should play a little with prolog:

program (neof.pro):

---

person(john).

judge(john).
fruit(apple1).
fruit(tomato1).

vegetable(tomato1).
vegetable(broccoli1).

likes(john, leftover1).
likes(john, apple1).
likes(john, tomato1).

thing(X):-vegetable(X).

thing(X):-fruit(X).

---

Queries:
Welcome to SWI-Prolog (Multi-threaded, Version 5.4.7) Copyright (c) 1990-2003 University of Amsterdam. SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions. Please visit http://www.swi-prolog.org for details.

For help, use ?- help(Topic). or ?- apropos(Word).

1 ?- chdir('H:/src/prolog').

Yes
2 ?- consult('H:/src/prolog/neof.pro').
% H:/src/prolog/neof.pro compiled 0.00 sec, 1,996 bytes

Yes
3 ?- likes(john, What).

What = leftover1 ;

What = apple1 ;

What = tomato1 ;

No
4 ?- vegetable(tomato1).

Yes
5 ?- fruit(tomato1).

Yes
6 ?- thing(tomato1).

Yes
7 ?- person(tomato1).

No Received on Tue Apr 25 2006 - 18:01:05 CDT