iTextSharp.text.pdf.BarcodeDatamatrix.AsciiEncodation C# (CSharp) Метод

        private static int AsciiEncodation(byte[] text, int textOffset, int textLength, byte[] data, int dataOffset, int dataLength) {
            int ptrIn, ptrOut, c;
            ptrIn = textOffset;
            ptrOut = dataOffset;
            textLength += textOffset;
            dataLength += dataOffset;
            while (ptrIn < textLength) {
                if (ptrOut >= dataLength)
                    return -1;
                c = text[ptrIn++] & 0xff;
                if (IsDigit(c) && ptrIn < textLength && IsDigit(text[ptrIn] & 0xff)) {
                    data[ptrOut++] = (byte)((c - '0') * 10 + (text[ptrIn++] & 0xff) - '0' + 130);
                }
                else if (c > 127) {
                    if (ptrOut + 1 >= dataLength)
                        return -1;
                    data[ptrOut++] = (byte)235;
                    data[ptrOut++] = (byte)(c - 128 + 1);
                }
                else {
                    data[ptrOut++] = (byte)(c + 1);
                }
            }
            return ptrOut - dataOffset;
        }