bufferHelper("\n\n", "\n", "\n");
    bufferHelper("\r\n\r\n", "\r\n", "\r\n");
    bufferHelper("\r\r", "\r", "\r");
    bufferHelper("\ra\r\n\n\r\r", "\r", "a\r\n", "\n", "\r", "\r");
    bufferHelper("no newlines at all", "no newlines at all");
    bufferHelper("two lines\nbut no newline at end", "two lines\n", "but no newline at end");
    bufferHelper(
        "\nempty first line\nno newline at end", "\n", "empty first line\n", "no newline at end");

    bufferHelper("\n\n", "\n", "\n");
    bufferHelper("\r\n\r\n", "\r\n", "\r\n");
    bufferHelper("\r\r", "\r", "\r");
    bufferHelper("\ra\r\n\n\r\r", "\r", "a\r\n", "\n", "\r", "\r");
    bufferHelper("no newlines at all", "no newlines at all");
    bufferHelper("two lines\nbut no newline at end", "two lines\n", "but no newline at end");
    bufferHelper(
        "\nempty first line\nno newline at end", "\n", "empty first line\n", "no newline at end");

          if (lineEnd != -1L) {
            // Skip the line and newline
            source.skip(lineEnd)
            source.select(options)
          } else {
            return false // No more newlines.
          }
        }

        else -> throw AssertionError()
      }
    }
  }

  @Throws(IOException::class)
  private fun completeEvent(
    id: String?,
    type: String?,

     * with Chrome's behavior (which also experimentally seems to match what IE does), but if you
     * actually want to have a good chance of things working, please avoid double-quotes, newlines,
     * percent signs, and the like in your field names.
     */
    internal fun StringBuilder.appendQuotedString(key: String) {
      append('"')
      for (i in 0 until key.length) {

    }
    i += Character.charCount(codePoint)
  }
}

/**
 * Returns a substring of `input` on the range `[pos..limit)` with the following
 * transformations:
 *
 *  * Tabs, newlines, form feeds and carriage returns are skipped.
 *
 *  * In queries, ' ' is encoded to '+' and '+' is encoded to "%2B".
 *
 *  * Characters in `encodeSet` are percent-encoded.
 *

			}
		}
		if string(tmp[:]) != "\n\r\n" {
			if cr.debug {
				fmt.Printf("signature, want %q, got %q", "\n\r\n", string(tmp[:]))
			}
			return errMalformedEncoding
		}
		// No need to write final newlines to buffer.
		break
	}

	// Verify signature.
	sig := signatureBuffer.Bytes()
	if !bytes.HasPrefix(sig, []byte("x-amz-trailer-signature:")) {
		if cr.debug {