func LoadFromEmbeddedTZData(zone string) (string, error) {
	return loadFromEmbeddedTZData(zone)
}

type RuleKind int

const (
	RuleJulian       = RuleKind(ruleJulian)
	RuleDOY          = RuleKind(ruleDOY)
	RuleMonthWeekDay = RuleKind(ruleMonthWeekDay)
	UnixToInternal   = unixToInternal
)

type Rule struct {
	Kind RuleKind
	Day  int
	Week int
	Mon  int
	Time int
}

func TzsetRule(s string) (Rule, string, bool) {

	off += secs

	if neg {
		off = -off
	}
	return off, s, true
}

// ruleKind is the kinds of rules that can be seen in a tzset string.
type ruleKind int

const (
	ruleJulian ruleKind = iota
	ruleDOY
	ruleMonthWeekDay
)

// rule is a rule read from a tzset string.
type rule struct {
	kind ruleKind
	day  int
	week int
	mon  int
	time int // transition time
}