private void IntellgentMail()
{
int index;
int value;
string zip = String.Empty;
string tracker = String.Empty;
BitVector zipAdder = new BitVector();
short[] accumulator = new short[112];
short[] xRegister = new short[112];
short[] yRegister = new short[112];
byte[] byteData = new byte[13];
uint uspsCRC;
int[] codeword = new int[10];
uint[] characters = new uint[10];
int[] barMap = new int[130];
StringBuilder barPattern = new StringBuilder();
int inputLength = barcodeData.Length;
if (inputLength > 31)
{
throw new InvalidDataLengthException("USPS: Input data too long.");
}
if (inputLength < 20)
{
throw new InvalidDataLengthException("USPS: Invalid tracking code length.");
}
// Separate the tracking code from the routing code.
tracker = new string(barcodeData, 0, 20);
if (inputLength > 20)
{
zip = new string(barcodeData, 20, inputLength - tracker.Length);
}
if (zip.Length != 11 && zip.Length != 9 && zip.Length != 5 && zip.Length != 0)
{
throw new InvalidDataException("USPS: Invalid ZIP code.");
}
Array.Clear(accumulator, 0, 112);
for (index = 0; index < zip.Length; index++)
{
BinaryMath.BinaryMultiply(accumulator, "10");
BinaryMath.BinaryLoad(xRegister, "0");
for (int i = 0; i < 4; i++)
{
value = zip[index] - '0';
if ((value & (0x01 << i)) > 0)
{
xRegister[i] = 1;
}
}
BinaryMath.BinaryAdd(accumulator, xRegister);
}
// Add weight to routing code.
Array.Copy(accumulator, xRegister, 112);
if (zip.Length > 9)
{
zipAdder.AppendBits(545, 10); // 1000100001
}
else
{
if (zip.Length > 5)
{
zipAdder.AppendBits(33, 6); // 100001
}
else
{
if (zip.Length > 0)
{
zipAdder.AppendBit(1); // 1
}
else
{
zipAdder.AppendBit(0); // 0
}
}
}
Array.Clear(accumulator, 0, 112);
for (index = 0; index < zipAdder.SizeInBits; index++)
{
BinaryMath.BinaryMultiply(accumulator, "10");
BinaryMath.BinaryLoad(yRegister, "0");
for (int i = 0; i < 4; i++)
{
value = zipAdder[index] - '0';
if ((value & (0x01 << i)) > 0)
{
yRegister[i] = 1;
}
}
BinaryMath.BinaryAdd(accumulator, yRegister);
}
BinaryMath.BinaryAdd(accumulator, xRegister);
// Tracking code.
// Multiply by 10.
BinaryMath.BinaryMultiply(accumulator, "10");
BinaryMath.BinaryLoad(yRegister, "0");
for (int i = 0; i < 4; i++)
{
value = tracker[0] - '0';
if ((value & (0x01 << i)) > 0)
{
yRegister[i] = 1;
}
}
BinaryMath.BinaryAdd(accumulator, yRegister);
// Multiply by 5.
BinaryMath.BinaryMultiply(accumulator, "5");
BinaryMath.BinaryLoad(yRegister, "0");
// Add second digit.
for (int i = 0; i < 4; i++)
{
value = tracker[1] - '0';
if ((value & (0x01 << i)) > 0)
{
yRegister[i] = 1;
}
}
BinaryMath.BinaryAdd(accumulator, yRegister);
// And then the rest.
for (index = 2; index < tracker.Length; index++)
{
BinaryMath.BinaryMultiply(accumulator, "10");
BinaryMath.BinaryLoad(yRegister, "0");
for (int i = 0; i < 4; i++)
{
value = tracker[index] - '0';
if ((value & (0x01 << i)) > 0)
{
yRegister[i] = 1;
}
}
BinaryMath.BinaryAdd(accumulator, yRegister);
}
// Step 2 - Generation of 11-bit CRC on Binary Data.
accumulator[103] = 0;
accumulator[102] = 0;
for (int i = 0; i < 13; i++)
{
int j = 96 - (8 * i);
byteData[i] = 0;
byteData[i] += (byte)accumulator[j];
byteData[i] += (byte)(2 * accumulator[j + 1]);
byteData[i] += (byte)(4 * accumulator[j + 2]);
byteData[i] += (byte)(8 * accumulator[j + 3]);
byteData[i] += (byte)(16 * accumulator[j + 4]);
byteData[i] += (byte)(32 * accumulator[j + 5]);
byteData[i] += (byte)(64 * accumulator[j + 6]);
byteData[i] += (byte)(128 * accumulator[j + 7]);
}
uspsCRC = CRC11GenerateFrameCheckSequence(byteData);
// Step 3 - Conversion from Binary Data to Codewords.
// Start with codeword J which is base 636
Array.Clear(xRegister, 0, 112);
Array.Clear(yRegister, 0, 112);
xRegister[101] = 1;
xRegister[98] = 1;
xRegister[97] = 1;
xRegister[96] = 1;
xRegister[95] = 1;
xRegister[94] = 1;
for (int i = 92; i >= 0; i--)
{
yRegister[i] = BinaryMath.IsLarger(accumulator, xRegister);
if (yRegister[i] == 1)
{
BinaryMath.BinarySubtract(accumulator, xRegister);
}
BinaryMath.ShiftDown(xRegister);
}
codeword[9] = (accumulator[9] * 512) + (accumulator[8] * 256) + (accumulator[7] * 128) + (accumulator[6] * 64) +
(accumulator[5] * 32) + (accumulator[4] * 16) + (accumulator[3] * 8) + (accumulator[2] * 4) +
(accumulator[1] * 2) + accumulator[0];
// Then codewords I to B with base 1365.
for (int j = 8; j > 0; j--)
{
for (int i = 0; i < 112; i++)
{
accumulator[i] = yRegister[i];
yRegister[i] = 0;
xRegister[i] = 0;
}
xRegister[101] = 1;
xRegister[99] = 1;
xRegister[97] = 1;
xRegister[95] = 1;
xRegister[93] = 1;
xRegister[91] = 1;
for (int i = 91; i >= 0; i--)
{
yRegister[i] = BinaryMath.IsLarger(accumulator, xRegister);
if (yRegister[i] == 1)
{
BinaryMath.BinarySubtract(accumulator, xRegister);
}
BinaryMath.ShiftDown(xRegister);
}
codeword[j] = (accumulator[10] * 1024) + (accumulator[9] * 512) + (accumulator[8] * 256) +
(accumulator[7] * 128) + (accumulator[6] * 64) + (accumulator[5] * 32) +
(accumulator[4] * 16) + (accumulator[3] * 8) + (accumulator[2] * 4) +
(accumulator[1] * 2) + accumulator[0];
}
codeword[0] = (yRegister[10] * 1024) + (yRegister[9] * 512) + (yRegister[8] * 256) +
(yRegister[7] * 128) + (yRegister[6] * 64) + (yRegister[5] * 32) +
(yRegister[4] * 16) + (yRegister[3] * 8) + (yRegister[2] * 4) +
(yRegister[1] * 2) + yRegister[0];
for (int i = 0; i < 8; i++)
{
if (codeword[i] == 1365)
{
codeword[i] = 0;
codeword[i + 1]++;
}
}
// Step 4 - Inserting Additional Information into Codewords.
codeword[9] = codeword[9] * 2;
if (uspsCRC >= 1024)
{
codeword[0] += 659;
}
// Step 5 - Conversion from Codewords to Characters.
for (int i = 0; i < 10; i++)
{
if (codeword[i] < 1287)
{
characters[i] = AppendixD1[codeword[i]];
}
else
{
characters[i] = AppendixD2[codeword[i] - 1287];
}
}
for (int i = 0; i < 10; i++)
{
if ((uspsCRC & (1 << i)) > 0)
{
characters[i] = 0x1FFF - characters[i];
}
}
// Step 6 - Conversion from Characters to the Intelligent Mail Barcode.
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 13; j++)
{
if ((characters[i] & (1 << j)) > 0)
{
barMap[AppendixD4[(13 * i) + j] - 1] = 1;
}
else
{
barMap[AppendixD4[(13 * i) + j] - 1] = 0;
}
}
}
for (int i = 0; i < 65; i++)
{
int j = 0;
if (barMap[i] == 0)
{
j += 1;
}
if (barMap[i + 65] == 0)
{
j += 2;
}
barPattern.Append(j);
}
SymbolBuilder.BuildFourStateSymbol(Symbol, barPattern);
// Format the barcodes text.
barcodeText = new string(barcodeData);
if (zip.Length > 0)
{
if (zip.Length == 11)
{
barcodeText = barcodeText.Insert(29, " ");
}
if (zip.Length >= 9)
{
barcodeText = barcodeText.Insert(25, " ");
}
if (zip.Length >= 5)
{
barcodeText = barcodeText.Insert(20, " ");
}
}
if (tracker[5] < '9')
{
barcodeText = barcodeText.Insert(11, " ");
}
else
{
barcodeText = barcodeText.Insert(14, " ");
}
barcodeText = barcodeText.Insert(5, " ");
barcodeText = barcodeText.Insert(2, " ");
}