sink.write(mapping.mappedTo)
      }

      TYPE_DEVIATION, TYPE_DISALLOWED_STD3_VALID, TYPE_VALID -> {
        sink.writeUtf8CodePoint(codePoint)
      }

      TYPE_DISALLOWED -> {
        sink.writeUtf8CodePoint(codePoint)
        result = false
      }
    }

    return result
  }
}

private val optionsDelimiter =
  Options.of(
    // 0.

      // Percent encode this character.
      if (encodedCharBuffer == null) {
        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()) {

        sink.writeUtf8CodePoint(codePoint - codepointDelta)
      }
      in 80..95 -> {
        // Mapped inline as codePoint delta to add
        val b2 = ranges[rangesIndex + 2].code
        val b3 = ranges[rangesIndex + 3].code

        val codepointDelta = (b1 and 0xF shl 14) or (b2 shl 7) or b3
        sink.writeUtf8CodePoint(codePoint + codepointDelta)
      }
      119 -> {

    setLevel(Level.BODY)
    val buffer = Buffer()
    buffer.writeUtf8CodePoint(0x89)
    buffer.writeUtf8CodePoint(0x50)
    buffer.writeUtf8CodePoint(0x4e)
    buffer.writeUtf8CodePoint(0x47)
    buffer.writeUtf8CodePoint(0x0d)
    buffer.writeUtf8CodePoint(0x0a)
    buffer.writeUtf8CodePoint(0x1a)
    buffer.writeUtf8CodePoint(0x0a)
    server.enqueue(
      MockResponse.Builder()
        .body(buffer)

import okio.Path.Companion.toPath

val okHttpRoot: Path
  get() = getEnv("OKHTTP_ROOT")!!.toPath()

fun String(vararg codePoints: Int): String {
  val buffer = Buffer()
  for (codePoint in codePoints) {
    buffer.writeUtf8CodePoint(codePoint)
  }
  return buffer.readUtf8()

      sourceCodePoint0 = sourceCodePoint0,
      sourceCodePoint1 = sourceCodePoint1,
      type = TYPE_MAPPED,
      mappedTo =
        Buffer().also {
          for (cp in mappedToCodePoints) {
            it.writeUtf8CodePoint(cp)
          }
        }.readByteString(),
    )

      if (n > 0x10ffff) return false // Not a valid code point.

      codePoints.add(i, n)

      i++
    }

    for (codePoint in codePoints) {
      result.writeUtf8CodePoint(codePoint)
    }

    return true
  }

  /** Returns a new bias. */
  private fun adapt(
    delta: Int,
    numpoints: Int,
    first: Boolean,
  ): Int {
    var delta =