writeUtf8(if (alreadyEncoded) "+" else "%2B")
    } else if (codePoint < 0x20 ||
      codePoint == 0x7f ||
      codePoint >= 0x80 &&
      !unicodeAllowed ||
      codePoint.toChar() in encodeSet ||
      codePoint == '%'.code &&
      (!alreadyEncoded || strict && !input.isPercentEncoded(i, limit))
    ) {
      // Percent encode this character.
      if (encodedCharBuffer == null) {

      buildString {
        val buffer = Buffer().writeUtf8(s)
        while (!buffer.exhausted()) {
          val c = buffer.readUtf8CodePoint()
          if (c != '\\'.code) {
            append(c.toChar())
            continue
          }
          when (buffer.readUtf8CodePoint()) {
            '\\'.code -> append('\\')
            '#'.code -> append('#')
            'n'.code -> append('\n')

  private fun largeHeaders(): List<Header> {
    val nameValues = arrayOfNulls<String>(32)
    val chars = CharArray(512)
    var i = 0
    while (i < nameValues.size) {
      Arrays.fill(chars, i.toChar())
      val string = String(chars)
      nameValues[i++] = string
      nameValues[i++] = string
    }
    return headerEntries(*nameValues)
  }

  private fun writeMedium(
    sink: BufferedSink,

        .body("ABCD")
        .build(),
    )
    val call = client.newCall(newRequest("/"))
    val response = call.execute()
    val inputStream = response.body.byteStream()
    assertThat(inputStream.read().toChar()).isEqualTo('A')
    call.cancel()
    assertFailsWith<IOException> {
      // Reading 'B' may succeed if it's buffered.
      inputStream.read()

    // Exercise non-ASCII digit test cases and the like.
    char[] tmp = new char[2];
    for (int i = Character.MIN_CODE_POINT; i < Character.MAX_CODE_POINT; i++) {
      Character.toChars(i, tmp, 0);
      checkTryParse(String.copyValueOf(tmp, 0, Character.charCount(i)));
    }
  }

  @GwtIncompatible // Doubles.tryParse
  public void testTryParseOfToStringIsOriginal() {

0181          ; mapped                 ; 0253          # 1.1  LATIN CAPITAL LETTER B WITH HOOK
0182          ; mapped                 ; 0183          # 1.1  LATIN CAPITAL LETTER B WITH TOPBAR
0183          ; valid                                  # 1.1  LATIN SMALL LETTER B WITH TOPBAR
0184          ; mapped                 ; 0185          # 1.1  LATIN CAPITAL LETTER TONE SIX
0185          ; valid                                  # 1.1  LATIN SMALL LETTER TONE SIX

        },
        "irish_lowercase": {
          "type":       "lowercase",
          "language":   "irish"

B,GAAOskB,MAAMxJ,QAASpc,GAAS,CAG9BunB,MAAO,WAEN,IAAImE,EAOJ,GAFA5F,GAAgBznB,KAAM2B,GAAM,IAEvB/B,EAASutB,aAcb,OAAO,GARPE,EAAW5L,EAASzd,IAAKhE,KAAM6nB,KAE9B7nB,KAAKuP,iBAAkBsY,EAAcqF,GAEtCzL,EAASJ,IAAKrhB,KAAM6nB,GAAgBwF,GAAY,GAAM,IAOxDpF,QAAS,WAMR,OAHAR,GAAgBznB,KAAM2B,IAGf,GAGR0nB,SAAU,WACT,IAAIgE,EAEJ,IAAKztB,EAASutB,aAWb,OAAO,GAVPE,EAAW5L,EAASzd,IAAKhE,KAAM6nB,GAAiB,GAK/CpG,EAASJ,IAAKrhB,KAAM6nB,EAAcwF,IAHlCrtB,KAAK4f,oBAAqBiI,EAAcqF,GACxCzL,EAASlF,OAAQvc,KAAM6nB,KAa1BlC,SAAU,SAAU4B,GACnB,OAAO...