def tree_builder(tokens):
parse = parser([grammar[t] for t in tokens] + [grammar.eof])
right_parse = tuple(reversed(parse))
print(right_parse)
return build_derivation_tree(right_parse, is_right_parse=True)
def tree_builder(tokens):
parse = parser(tokens)
right_parse = reversed(parse)
return build_derivation_tree(right_parse, is_right_parse=True)
def tree_builder(tokens):
left_parse = parser([grammar[t] for t in tokens] + [grammar.eof])
return build_derivation_tree(left_parse)