result.write(this, i)
      // Consume '"'.
      readByte()
      return result.readUtf8()
    }

    if (size == i + 1L) return null // Dangling escape.
    result.write(this, i)
    // Consume '\'.
    readByte()
    result.write(this, 1L) // The escaped character.
  }
}

/**
 * Consumes and returns a non-empty token, terminating at special characters in

      if (pos == value.length || value[pos] == ',' || value[pos] == ';') {
        pos++ // Consume ',' or ';' (if necessary).
        parameter = null
      } else {
        pos++ // Consume '='.
        pos = value.indexOfNonWhitespace(pos)

        if (pos < value.length && value[pos] == '\"') {
          // Quoted string.
          pos++ // Consume '"' open quote.
          val parameterStart = pos

    // Note that this may be be an encoded "end of data" header.
    return DerHeader(tagClass, tag, constructed, length)
  }

  /**
   * Consume a header and execute [block], which should consume the entire value described by the
   * header. It is an error to not consume a full value in [block].
   */
  internal inline fun <T> read(
    name: String?,
    block: (DerHeader) -> T,
  ): T {

  fun matches(header: DerHeader): Boolean

  /**
   * Returns a value from this adapter.
   *
   * This must always return a value, though it doesn't necessarily need to consume data from
   * [reader]. For example, if the reader's peeked tag isn't readable by this adapter, it may return
   * a default value.
   *

      // Read a boundary, skipping the remainder of the preceding part as necessary.
      if (partCount == 0 && source.rangeEquals(0L, dashDashBoundary)) {
        // This is the first part. Consume "--" followed by the boundary.
        source.skip(dashDashBoundary.size.toLong())
      } else {
        // This is a subsequent part or a preamble. Skip until "\r\n--" followed by the boundary.
        while (true) {

    @Min(-1)
    @Max(1000)
    @ValidateTypeFailure
    public Integer dayForCleanup;

    /**
     * Number of threads to use for crawling operations.
     * Higher values increase crawling speed but consume more resources.
     */
    @Required
    @Min(0)
    @Max(100)
    @ValidateTypeFailure
    public Integer crawlingThreadCount;

    /**
     * Enable or disable search query logging.

   * or all lines have been read and returning the result produced by the processor. Does not close
   * {@code readable}. Note that this method may not fully consume the contents of {@code readable}
   * if the processor stops processing early.
   *
   * @throws IOException if an I/O error occurs
   * @since 14.0
   */

    delayBeforeTrailers(Protocol.HTTP_1_1)
  }

  @Test
  fun delayBeforeTrailersHttp2() {
    trailers(Protocol.HTTP_2)
  }

  /** Confirm the client will block if necessary to consume trailers. */
  private fun delayBeforeTrailers(protocol: Protocol) {
    enableProtocol(protocol)

    server.enqueue(
      MockResponse
        .Builder()
        .trailers(headersOf("t1", "v2"))

    timeout.setDelegate(Timeout.NONE)
    oldDelegate.clearDeadline()
    oldDelegate.clearTimeout()
  }

  /**
   * The response body from a CONNECT should be empty, but if it is not then we should consume it
   * before proceeding.
   */
  fun skipConnectBody(response: Response) {
    val contentLength = response.headersContentLength()
    if (contentLength == -1L) return

   * @since 33.4.0 (but since 22.0 in the JRE flavor)
   */
  /*
   * We have to rely on users not to call this without library desugaring, as NewApi won't flag
   * Consumer creation.
   */
  @IgnoreJRERequirement
  public void forEachLine(Consumer<? super String> action) throws IOException {
    try (Stream<String> lines = lines()) {
      // The lines should be ordered regardless in most cases, but use forEachOrdered to be sure