def emit_classes (self):
code_list = ["#! /usr/bin/env python",
"class AST (object):",
["pass"],
"",
]
class_names = self.classes.keys()
class_names.sort()
for class_name in class_names:
code_list += ["class %s (AST):" % class_name,
self.classes[class_name], ""]
return "\n".join(pgen2LL1.gen_code_lines(code_list))
def main (*args):
# Parse the input pgen file.
fe = PgenFrontEnd()
fe.handle_args(*args)
cpt = fe.get_concrete_parse()
rules = process_rules(cpt)
# For each nonterminal, create a handler method.
methods = {}
rule_names = [rule_name for rule_name in rules.keys()
if rule_name[0] != "_"]
for rule_name in rule_names:
methods["handle_%s" % rule_name] = [
"child_results = self.handle_children(node)",
"return child_results"]
# Anything else? (Overloading needed traversal methods?)
klass = make_class(methods, fe.klass_name, fe.start)
code_lines = gen_code_lines(klass)
fe.output_text("\n".join(code_lines))