Tau-Prolog Doge demo

This is a port of the Tau-Prolog Doge demo to the SWI-Prolog WASM version. The only change to the port is downloading and initializing Prolog. The Prolog script itself runs unmodified.

w
a
s
d
p (poop)

Tau-Prolog and its examples are covered by the BSD-3 license. This demo is written by José Antonio Riaza Valverde and ported to SWI-Prolog by Jan Wielemaker.