scr, err := ParseScript(s)
	if err != nil {
		panic(err)
	}
	return scr
}

// MustParseRegion is like ParseRegion, but panics if the given region cannot be
// parsed. It simplifies safe initialization of Region values.
func MustParseRegion(s string) Region {
	r, err := ParseRegion(s)
	if err != nil {
		panic(err)
	}
	return r
}

// Und is the root language.

	scr, err := ParseScript(s)
	if err != nil {
		panic(err)
	}
	return scr
}

// MustParseRegion is like ParseRegion, but panics if the given region cannot be
// parsed. It simplifies safe initialization of Region values.
func MustParseRegion(s string) Region {
	r, err := ParseRegion(s)
	if err != nil {
		panic(err)
	}
	return r
}

var (
	und = Tag{}

	Und Tag = Tag{}

}

// Make a compact Tag from a fully specified internal language Tag.
func Make(t language.Tag) (tag Tag) {
	if region := t.TypeForKey("rg"); len(region) == 6 && region[2:] == "zzzz" {
		if r, err := language.ParseRegion(region[:2]); err == nil {
			tFull := t
			t, _ = t.SetTypeForKey("rg", "")
			// TODO: should we not consider "va" for the language tag?
			var exact1, exact2 bool
			tag.language, exact1 = FromTag(t)
			t.RegionID = r