var end = 1
        while (this[mid + end] != '\n'.code.toByte()) {
          end++
        }
        val publicSuffixLength = mid + end - mid

        // Compare the bytes. Note that the file stores UTF-8 encoded bytes, so we must compare the
        // unsigned bytes.
        var compareResult: Int
        var currentLabelIndex = labelIndex
        var currentLabelByteIndex = 0
        var publicSuffixByteIndex = 0