// could be multiple alternative scripts. This does not occur in practice.
	altScript language.Script

	// nextMax is the index of the next haveTag with the same maximized tags.
	nextMax uint16
}

func makeHaveTag(tag language.Tag, index int) (haveTag, language.Language) {
	max := tag
	if tag.LangID != 0 || tag.RegionID != 0 || tag.ScriptID != 0 {
		max, _ = canonicalize(All, max)
		max, _ = max.Maximize()
		max.RemakeString()