{"DateTime", DateTime, "2009-02-04 21:00:57"},
	{"DateOnly", DateOnly, "2009-02-04"},
	{"TimeOnly", TimeOnly, "21:00:57"},
	{"YearDay", "Jan  2 002 __2 2", "Feb  4 035  35 4"},
	{"Year", "2006 6 06 _6 __6 ___6", "2009 6 09 _6 __6 ___6"},
	{"Month", "Jan January 1 01 _1", "Feb February 2 02 _2"},
	{"DayOfMonth", "2 02 _2 __2", "4 04  4  35"},
	{"DayOfWeek", "Mon Monday", "Wed Wednesday"},
	{"Hour", "15 3 03 _3", "21 9 09 _9"},

func ToAST(name string, options ...Option) (AST, error) {
	if strings.HasPrefix(name, "_Z") {
		a, err := doDemangle(name[2:], options...)
		return a, adjustErr(err, 2)
	}

	if strings.HasPrefix(name, "___Z") {
		// clang extensions
		block := strings.LastIndex(name, "_block_invoke")
		if block == -1 {
			return nil, ErrNotMangledName
		}
		a, err := doDemangle(name[4:block], options...)
		if err != nil {