iTextSharp.text.factories.RomanNumberFactory.GetString C# (CSharp) Метод

        public static String GetString(int index)
        {
            StringBuilder buf = new StringBuilder();

            // lower than 0 ? Add minus
            if (index < 0) {
                buf.Append('-');
                index = -index;
            }

            // greater than 3000
            if (index > 3000) {
                buf.Append('|');
                buf.Append(GetString(index / 1000));
                buf.Append('|');
                // remainder
                index = index - (index / 1000) * 1000;
            }

            // number between 1 and 3000
            int pos = 0;
            while (true) {
                // loop over the array with values for m-d-c-l-x-v-i
                RomanDigit dig = roman[pos];
                // adding as many digits as we can
                while (index >= dig.value) {
                    buf.Append(dig.digit);
                    index -= dig.value;
                }
                // we have the complete number
                if (index <= 0) {
                    break;
                }
                // look for the next digit that can be used in a special way
                int j = pos;
                while (!roman[++j].pre);

                // does the special notation apply?
                if (index + roman[j].value >= dig.value) {
                    buf.Append(roman[j].digit).Append(dig.digit);
                    index -= dig.value - roman[j].value;
                }
                pos++;
            }
            return buf.ToString();
        }