}

var errNoTLD = errors.New("language: region is not a valid ccTLD")

// TLD returns the country code top-level domain (ccTLD). UK is returned for GB.
// In all other cases it returns either the region itself or an error.
//
// This method may return an error for a region for which there exists a
// canonical form with a ccTLD. To get that ccTLD canonicalize r first. The

	return r.regionID.Contains(c.regionID)
}

// TLD returns the country code top-level domain (ccTLD). UK is returned for GB.
// In all other cases it returns either the region itself or an error.
//
// This method may return an error for a region for which there exists a
// canonical form with a ccTLD. To get that ccTLD canonicalize r first. The
// region will already be canonicalized it was obtained from a Tag that was

		return m[i].From >= uint16(r)
	})
	if k < len(m) && m[k].From == uint16(r) {
		return Region(m[k].To)
	}
	return 0
}

const (
	iso3166UserAssigned = 1 << iota
	ccTLD
	bcp47Region
)

func (r Region) typ() byte {
	return regionTypes[r]
}

// String returns the BCP 47 representation for the region.
// It returns "ZZ" for an unspecified region.

tm.ro
www.ro

// rs : https://www.rnids.rs/en/domains/national-domains
rs
ac.rs
co.rs
edu.rs
gov.rs
in.rs
org.rs

// ru : https://cctld.ru/files/pdf/docs/en/rules_ru-rf.pdf
// Submitted by George Georgievsky <gug@cctld.ru>
ru

// rw : https://www.ricta.org.rw/sites/default/files/resources/registry_registrar_contract_0.pdf
rw
ac.rw
co.rw
coop.rw
gov.rw
mil.rw