FWIW, Joy (http://www.latrobe.edu.au/philosophy/phimvt/joy.html) is quite simple, like Forth. I wrote an interpreter in Prolog in about an hour last weekend.
http://functionaljava.org/
http://commons.apache.org/sandbox/functor/
FWIW, Joy (http://www.latrobe.edu.au/philosophy/phimvt/joy.html) is quite simple, like Forth. I wrote an interpreter in Prolog in about an hour last weekend.