def joint(*parsers):
    '''Joint two or more parsers, implements the operator of `(+)`.'''
    @Parser
    def joint_parser(text, index):
        values = []
        prev_v = None
        for p in parsers:
            if prev_v:
                index = prev_v.index
            prev_v = v = p(text, index)
            if not v.status:
                return v
            values.append(v)
        return Value.combinate(values)
    return joint_parser
Joint two or more parsers, implements the operator of `(+)`.