rangesBuffer.writeByte(range.b3)
        }
        is MappedRange.External -> {
          // Write the mapping.
          val mappingOffset: Int
          val mappedTo = range.mappedTo.utf8()
          val mappingIndex = mappingsBuffer.indexOf(mappedTo)
          if (mappingIndex == -1) {
            mappingOffset = mappingsBuffer.length
            mappingsBuffer.append(mappedTo)
          } else {

	}
}

func errInvalidTextEncodingError() *s3Error {
	return &s3Error{
		code:       "InvalidTextEncoding",
		message:    "UTF-8 encoding is required.",
		statusCode: 400,
		cause:      errors.New("invalid utf8 encoding"),
	}

		//
		// Forbid 0x7e and 0x5c since EUC-KR and Shift-JIS replace those
		// characters with localized currency and overline characters.
		if r < 0x20 || r > 0x7d || r == 0x5c {
			if !utf8.ValidRune(r) || (r == utf8.RuneError && size == 1) {
				return false, false
			}
			require = true
		}
	}
	return true, require
}

// prepare performs the bookkeeping operations required at the start of

    assertThat(recordedRequest1.method).isEqualTo("POST")
    assertThat(recordedRequest1.body?.utf8()).isEqualTo(body)
    assertThat(recordedRequest1.headers["Authorization"]).isNull()
    val recordedRequest2 = server.takeRequest()
    assertThat(recordedRequest2.method).isEqualTo("POST")
    assertThat(recordedRequest2.body?.utf8()).isEqualTo(body)
    assertThat(recordedRequest2.headers["Authorization"]).isEqualTo(credential)
  }

  return millis.toInt()
}

internal fun List<Header>.toHeaders(): Headers {
  val builder = Headers.Builder()
  for ((name, value) in this) {
    builder.addLenient(name.utf8(), value.utf8())
  }
  return builder.build()
}

internal fun Headers.toHeaderList(): List<Header> =
  (0 until size).map {
    Header(name(it), value(it))
  }

			o += copy(buf[o:], uchars)
		}

		// Make space for the needle rune at the end of buf.
		m := utf8.RuneLen(needle)
		for o := m; o > 0; {
			_, sz := utf8.DecodeLastRune(buf)
			copy(buf[len(buf)-sz:], "\x00\x00\x00\x00")
			buf = buf[:len(buf)-sz]
			o -= sz
		}
		buf = utf8.AppendRune(buf[:n-m], needle)

		n -= m // adjust for rune len
		for i := 0; i < b.N; i++ {

          // otherwise try to presize a StringBuilder
          // it is kind of lame that we need to construct a decoder to access this value.
          // if this is a concern we could add special cases for some known charsets (like utf8)
          // or we could avoid inputstreamreader and use the decoder api directly
          // TODO(lukes): in a real implementation we would need to handle overflow conditions

     */
    public static String toExternalForm(final URL url) {
        assertArgumentNotNull("url", url);

        final String s = url.toExternalForm();
        return URLUtil.decode(s, "UTF8");
    }

    /**
     * Returns the file name of the resource.
     *
     * @param url
     *            The resource URL. Must not be {@literal null}.
     * @return The file name.
     */

    val reader = BufferedReader(InputStreamReader(inputStream, UTF_8))
    assertThat(reader.readLine()).isEqualTo("response")
    val request = server.takeRequest()
    assertThat(request.body?.utf8()).isEqualTo("request")
  }

  @Test
  fun http100ContinueChunkedStreaming() {
    server.enqueue(
      MockResponse
        .Builder()
        .body("response")
        .add100Continue()

  integrity sha512-m7a0FhE67DQXgouf1tbN5XQcdWoNgaAuoULHIfGFIEVKA6tu/edls6XnIlkmS6FrXAquJRPni3ZZKjw6FSPjPQ==
  dependencies:
    "@xtuc/long" "4.2.2"

"@webassemblyjs/utf8@1.11.6":
  version "1.11.6"
  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.11.6.tgz#90f8bc34c561595fe156603be7253cdbcd0fab5a"
  integrity sha512-vtXf2wTQ3+up9Zsg8sa2yWiQpzSsMyXj0qViVP6xKGCUT8p8YJ6HqI7l5eCnWx1T/FYdsv07HQs2wTFbbof/RA==