parser.py 文件源码

def __init__(self, **kwargs):
        if kwargs.pop('silent', False):
            kwargs['errorlog'] = yacc.NullLogger()

        kwargs.setdefault('debug', False)
        kwargs.setdefault('write_tables', False)
        self._parser = yacc.yacc(module=self, **kwargs)
        self._lexer = Lexer()