checkArgument(
          !portString.startsWith("+") && CharMatcher.ascii().matchesAllOf(portString),
          "Unparseable port number: %s",
          hostPortString);
      try {
        port = Integer.parseInt(portString);
      } catch (NumberFormatException e) {
        throw new IllegalArgumentException("Unparseable port number: " + hostPortString);
      }

		return
	}
	volume := r.Form.Get(storageRESTVolume)
	filePath := r.Form.Get(storageRESTFilePath)
	offset, err := strconv.ParseInt(r.Form.Get(storageRESTOffset), 10, 64)
	if err != nil {
		s.writeErrorResponse(w, err)
		return
	}
	length, err := strconv.ParseInt(r.Form.Get(storageRESTLength), 10, 64)
	if err != nil {
		s.writeErrorResponse(w, err)
		return
	}

            Matcher matcher = HEADER_PATTERN.matcher(element);
            if (!matcher.matches()) {
                return false;
            }
            int depth = Integer.parseInt(matcher.group(1));
            if (sectionDepth == 0) {
                sectionDepth = depth - 1;
            }
            while (sectionDepth >= depth) {
                nodes.pop();

                /*
                 * Get ASCII hex value and convert to platform dependent
                 * encoding like EBCDIC perhaps
                 */
                b[ 0 ] = (byte) ( Integer.parseInt(str.substring(i, i + 2), 16) & 0xFF );
                out[ j++ ] = ( new String(b, 0, 1, "ASCII") ).charAt(0);
                i++;
                state = 0;
            }
        }

// ExpToInt64 - convert input interface value to int64.
func ExpToInt64(expI interface{}) (expAt int64, err error) {
	switch exp := expI.(type) {
	case string:
		expAt, err = strconv.ParseInt(exp, 10, 64)
	case float64:
		expAt, err = int64(exp), nil
	case int64:
		expAt, err = exp, nil
	case int:
		expAt, err = int64(exp), nil
	case uint64:
		expAt, err = int64(exp), nil
	case uint:

            int dayForCleanup = -1;
            if (StringUtil.isNotBlank(options.expires)) {
                dayForCleanupStr = options.expires;
                try {
                    dayForCleanup = Integer.parseInt(dayForCleanupStr);
                } catch (final NumberFormatException e) {}
            } else {
                dayForCleanup = ComponentUtil.getFessConfig().getDayForCleanup();
            }

                    Snapshot snapshot = new Snapshot();
                    snapshot.setTimestamp(matcher.group(2));
                    try {
                        snapshot.setBuildNumber(Integer.parseInt(matcher.group(3)));
                        artifact.addMetadata(new SnapshotArtifactRepositoryMetadata(artifact, snapshot));
                    } catch (NumberFormatException e) {

   * {@code null} if non-ASCII digits are present in the string.
   *
   * <p>Note that strings prefixed with ASCII {@code '+'} are rejected, even though {@link
   * Integer#parseInt(String)} accepts them.
   *
   * @param string the string representation of a long value
   * @return the long value represented by {@code string}, or {@code null} if {@code string} has a

   * {@code null} if non-ASCII digits are present in the string.
   *
   * <p>Note that strings prefixed with ASCII {@code '+'} are rejected, even though {@link
   * Integer#parseInt(String)} accepts them.
   *
   * @param string the string representation of a long value
   * @return the long value represented by {@code string}, or {@code null} if {@code string} has a

	}
}

func intCast(v *Value) (int64, error) {
	// This conversion truncates floating point numbers to
	// integer.
	strToInt := func(s string) (int64, bool) {
		i, errI := strconv.ParseInt(s, 10, 64)
		if errI == nil {
			return i, true
		}
		f, errF := strconv.ParseFloat(s, 64)
		if errF == nil {
			return int64(f), true
		}
		return 0, false
	}