Similar to parse but returns a list of Options objects instead
        of the dictionary format.

def parse_options(cls, line, ns={}):
        """
        Similar to parse but returns a list of Options objects instead
        of the dictionary format.
        """
        parsed = cls.parse(line, ns=ns)
        options_list = []
        for spec in sorted(parsed.keys()):
            options = parsed[spec]
            merged = {}
            for group in options.values():
                merged = dict(group.kwargs, **merged)
            options_list.append(Options(spec, **merged))
        return options_list