// contain non-decimal characters.
    int length = end - start;
    if (length <= 0 || length > 3) {
      throw new NumberFormatException();
    }
    // Disallow leading zeroes, because no clear standard exists on
    // whether these should be interpreted as decimal or octal.
    if (length > 1 && ipString.charAt(start) == '0') {
      throw new NumberFormatException();
    }

    var value = 0
    val groupOffset = i
    while (i < limit) {
      val c = input[i]
      if (c < '0' || c > '9') break
      if (value == 0 && groupOffset != i) return false // Reject unnecessary leading '0's.
      value = value * 10 + c.code - '0'.code
      if (value > 255) return false // Value out of range.
      i++
    }
    val groupLength = i - groupOffset

        throw new IOException("Unable to delete " + from);
      }
    }
  }

  /**
   * Reads the first line from a file. The line does not include line-termination characters, but
   * does include other leading and trailing whitespace.
   *
   * @param file the file to read from
   * @param charset the charset used to decode the input stream; see {@link StandardCharsets} for
   *     helpful predefined constants

    assertThat(cookie.matches("http://www.example.com".toHttpUrl())).isFalse()
    assertThat(cookie.matches("http://square.com".toHttpUrl())).isFalse()
  }

  /** Ignore an optional leading `.` in the domain.  */
  @Test fun domainMatchesIgnoresLeadingDot() {
    val cookie = parse(url, "a=b; domain=.example.com")
    assertThat(cookie!!.matches("http://example.com".toHttpUrl())).isTrue()

    replaceWith = ReplaceWith(expression = "secure"),
    level = DeprecationLevel.ERROR,
  )
  fun secure(): Boolean = secure

  /**
   * @param forObsoleteRfc2965 true to include a leading `.` on the domain pattern. This is
   *     necessary for `example.com` to match `www.example.com` under RFC 2965. This extra dot is
   *     ignored by more recent specifications.
   */

      assertThat(header.constructed).isFalse()
      assertThat(header.length).isEqualTo(201)
    }

    assertThat(derReader.hasNext()).isFalse()
  }

  @Test fun `decode length encoded with leading zero byte`() {
    val buffer =
      Buffer()
        .writeByte(0b00000010)
        .writeByte(0b10000010)
        .writeByte(0b00000000)
        .writeByte(0b01111111)

    val derReader = DerReader(buffer)

    ImmutableList<String> ancestorParts = parts.subList(levels, parts.size());

    // levels equals the number of dots that are getting clipped away, then add the length of each
    // clipped part to get the length of the leading substring that is being removed.
    int substringFrom = levels;
    for (int i = 0; i < levels; i++) {
      substringFrom += parts.get(i).length();
    }
    String ancestorName = name.substring(substringFrom);

    // contain non-decimal characters.
    int length = end - start;
    if (length <= 0 || length > 3) {
      throw new NumberFormatException();
    }
    // Disallow leading zeroes, because no clear standard exists on
    // whether these should be interpreted as decimal or octal.
    if (length > 1 && ipString.charAt(start) == '0') {
      throw new NumberFormatException();
    }

      if (exceptionMessage != null) {
        assertThat(iae).hasMessage(exceptionMessage)
      }
    }
  }

  @Test
  fun parseTrimsAsciiWhitespace() {
    val expected = parse("http://host/")
    // Leading.
    assertThat(parse("http://host/\u000c\n\t \r")).isEqualTo(expected)
    // Trailing.
    assertThat(parse("\r\n\u000c \thttp://host/")).isEqualTo(expected)
    // Both.

// such as ".." and "."
func hasBadPathComponent(path string) bool {
	n := len(path)
	if n > 32<<10 {
		// At 32K we are beyond reasonable.
		return true
	}
	i := 0
	// Skip leading slashes (for sake of Windows \ is included as well)
	for i < n && (path[i] == SlashSeparatorChar || path[i] == '\\') {
		i++
	}

	for i < n {
		// Find the next segment
		start := i