parser.py 文件源码

def __init__(self, filename):
        self.filename = filename
        self.tokens = [ r.upper() for r in self.reserved ] + [ a[2:] for a in dir(self) if a[:2] == 't_' and a[2:].isupper() ]
        self.lexer = lex.lex(module=self, debug=False)
        self.parser = yacc.yacc(
            module=self,
            debug=False,
            write_tables=False,
            picklefile=os.path.splitext(
                sys.modules[self.__class__.__module__].__file__
                )[0]+'.parsetab')