func golang.org/x/text/internal/language.getLangID

4 uses

	golang.org/x/text/internal/language (current package)
		language.go#L483: 	return getLangID(buf[:copy(buf[:], s)])
		lookup.go#L39: func getLangID(s []byte) (Language, error) {
		parse.go#L303: 	t.LangID, e = getLangID(scan.token)
		parse.go#L312: 			lang, e := getLangID(scan.token)