Start work on an evaluator. For now it knows how to unify but doesn't know how to handle builtin predicates or how to backtrack
Understand :-initialization(Goal) directive
Make parse return a list of clauses. Also pretty print the entire list of clauses.
Parse terms in parenthesis correctly
Parse lists and {a,b,c} syntax (What is this even called?)
Parse , and make xfy do what it should
Fix some parser errors, and accept clauses without a body
Initial commit. Start working on a new prolog implementation for 9front, now that I at least have a better understanding of what goes into a compiler :)