c_parser.py 文件源码

def _maybe_attributes(self):
        """Possibly match some attributes.

        The syntax of attributes is described here:
        https://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html
        """
        return pyparsing.Group(
            pyparsing.ZeroOrMore(
                _ATTRIBUTE
                + _DOUBLE_OPEN_PARENTHESIS
                + pyparsing.delimitedList(
                    pyparsing.Group(
                        self._identifier()("name")
                        + pyparsing.Optional(
                            _OPEN_PARENTHESIS
                            + parsers.anything_beetween("()")("args")
                            + _CLOSE_PARENTHESIS
                        )
                    )
                )
                + _DOUBLE_CLOSE_PARENTHESIS
            ).setParseAction(self._make_attribute)
        )("attributes")