// an unambiguous script.
					if goodScript {
						t.ScriptID = tt.ScriptID
					}
				}
			}
		}
	} else {
		// Search matches for und-script.
		if t.ScriptID != 0 {
			x := likelyScript[t.ScriptID]
			if x.region != 0 {
				t.setUndefinedRegion(Region(x.region))
				t.setUndefinedLang(Language(x.lang))
				return t, nil
			}
		}

	// designed to recognize similar tags that would be the same if
	// they were canonicalized using All.
	Default = Deprecated | Legacy

	canonLang = DeprecatedBase | Legacy | Macro

	// TODO: LikelyScript, LikelyRegion: suppress similar to ICU.
)

// canonicalize returns the canonicalized equivalent of the tag and
// whether there was any change.
func canonicalize(c CanonType, t language.Tag) (language.Tag, bool) {

const nRegionGroups = 33

type likelyLangRegion struct {
	lang   uint16
	region uint16
}

// likelyScript is a lookup table, indexed by scriptID, for the most likely
// languages and regions given a script.
// Size: 1052 bytes, 263 elements
var likelyScript = [263]likelyLangRegion{
	1:   {lang: 0x14e, region: 0x85},
	3:   {lang: 0x2a2, region: 0x107},
	4:   {lang: 0x1f, region: 0x9a},