v *= base
		v += uint(s[i] - 'a')
	}
	return v
}

// converts the given integer to the original ASCII string passed to strToInt.
// len(s) must match the number of characters obtained.
func intToStr(v uint, s []byte) {
	for i := len(s) - 1; i >= 0; i-- {
		s[i] = byte(v%base) + 'a'
		v /= base
	}
}

// getLangISO3 returns the langID for the given 3-letter ISO language code