encodedCharBuffer = Buffer()
      }

      if (charset == null || charset == Charsets.UTF_8) {
        encodedCharBuffer.writeUtf8CodePoint(codePoint)
      } else {
        encodedCharBuffer.writeString(input, i, i + Character.charCount(codePoint), charset)
      }

      while (!encodedCharBuffer.exhausted()) {
        val b = encodedCharBuffer.readByte().toInt() and 0xff
        writeByte('%'.code)