private static BitList EncodeEan13(string content)
{
var result = new BitList();
result.AddBit(true, false, true);
bool[] firstNum = null;
var cpos = 0;
foreach (var r in content)
{
Constants.EncodedNumber num = Constants.EncodingTable[r];
if (firstNum == null)
{
firstNum = num.Checksum;
cpos++;
continue;
}
bool[] data = cpos < 7 ? firstNum[cpos - 1] ? num.LeftEven : num.LeftOdd : num.Right;
if (cpos == 7)
{
result.AddBit(false, true, false, true, false);
}
result.AddBit(data);
cpos++;
}
result.AddBit(true, false, true);
return(result);
}
private static BitList EncodeUpcA(string content)
{
var result = new BitList();
// Start bars
result.AddBit(true, false, true);
var cpos = 0;
foreach (var r in content)
{
Constants.EncodedNumber num = Constants.EncodingTable[r];
bool[] data = cpos < 6 ? num.Left : num.Right;
// Middle bars
if (cpos == 6)
{
result.AddBit(false, true, false, true, false);
}
result.AddBit(data);
cpos++;
}
// Stop bars
result.AddBit(true, false, true);
return(result);
}
public static IBarcode Encode(string content)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
if (!Regex.IsMatch(content, @"^[ABCD][0-9\-\$\:/\.\+]*[ABCD]$"))
{
throw new InvalidOperationException($"{content} could not be encoded");
}
var resBits = new BitList();
var i = 0;
foreach (var r in content)
{
if (i++ > 0)
{
resBits.AddBit(false);
}
resBits.AddBit(Constants.EncodingTable[r]);
}
return(new Base1DCode(resBits, BarcodeType.Codabar, content, Constants.Margin));
}
public static IBarcodeIntCS Encode(string content, bool includeChecksum = true, bool gs1ModeEnabled = false)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
if (gs1ModeEnabled)
{
content = Gs1Encoder.Encode(content, Constants.FNC1);
}
char[] contentChars = content.ToCharArray();
if (contentChars.Length <= 0 || contentChars.Length > 80)
{
throw new ArgumentException($"Content length should be between 1 and 80 but got {contentChars.Length}", nameof(content));
}
BitList?idxList = GetCodeIndexList(contentChars);
if (!idxList.HasValue)
{
throw new InvalidOperationException($"{content} could not be encoded");
}
var result = new BitList();
var sum = 0;
var i = 0;
foreach (var idx in idxList.Value.GetBytes())
{
if (i == 0)
{
sum = idx;
}
else
{
sum += i * idx;
}
result.AddBit(Constants.EncodingTable[idx]);
i++;
}
sum = sum % 103;
if (includeChecksum)
{
result.AddBit(Constants.EncodingTable[sum]);
}
result.AddBit(Constants.EncodingTable[Constants.StopSymbol]);
return(new Base1DCodeIntCS(result, BarcodeType.Code128, content, sum, Constants.Margin));
}
public static IBarcodeIntCS Encode(string content, bool includeChecksum, bool fullAsciiMode)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
if (fullAsciiMode)
{
content = Prepare(content);
}
else if (content.Contains("*"))
{
throw new InvalidOperationException("Invalid data! Try full ASCII mode");
}
char checksum = GetChecksum(content);
var data = new StringBuilder("*");
data.Append(content);
if (includeChecksum)
{
data.Append(checksum);
}
data.Append("*");
var result = new BitList();
var i = 0;
foreach (char r in data.ToString())
{
if (i++ != 0)
{
result.AddBit(false);
}
if (!Constants.EncodingTable.TryGetValue(r, out (int value, bool[] data)info))
{
throw new InvalidOperationException("Invalid data! Try full ASCII mode");
}
result.AddBit(info.data);
}
return(new Base1DCodeIntCS(result, BarcodeType.Code39, content, checksum, Constants.Margin));
}
protected void AddPaddingAndTerminator(ref BitList bits, VersionInfo versionInfo)
{
int totalDataBits = versionInfo.TotalDataBytes() * 8;
for (int i = 0; i < 4 && bits.Length < totalDataBits; i++)
{
bits.AddBit(false);
}
while (bits.Length % 8 != 0)
{
bits.AddBit(false);
}
for (int i = 0; bits.Length < totalDataBits; i++)
{
bits.AddByte((i % 2) == 0 ? (byte)236 : (byte)17);
}
}
private static BitList EncodeEan8(string content)
{
var result = new BitList();
result.AddBit(true, false, true);
var cpos = 0;
foreach (var r in content)
{
Constants.EncodedNumber num = Constants.EncodingTable[r];
bool[] data = cpos < 4 ? num.LeftOdd : num.Right;
if (cpos == 4)
{
result.AddBit(false, true, false, true, false);
}
result.AddBit(data);
cpos++;
}
result.AddBit(true, false, true);
return(result);
}
private static BitList EncodeUpcE(string content, UpcENumberSystem numberSystem)
{
var result = new BitList();
// Find the correct parity pattern
// To find it we need the check digit of the UPC-A for which this UPC-E barcode encodes
var upcA = GetUpcAFromUpcE(content, numberSystem);
var upcACheckDigit = upcA.Last();
Constants.ParityPatterns parityPatternTable = Constants.ParityPatternTable[upcACheckDigit];
Constants.Parity[] parityPattern = numberSystem == UpcENumberSystem.Zero ?
parityPatternTable.NumberSystemZero : parityPatternTable.NumberSystemOne;
// Start bars
result.AddBit(true, false, true);
// Data bars
for (int i = 0; i < content.Length; i++)
{
char c = content[i];
Constants.EncodedNumber num = Constants.EncodingTable[c];
Constants.Parity parity = parityPattern[i];
if (parity == Constants.Parity.Even)
{
result.AddBit(num.Even);
}
else
{
result.AddBit(num.Odd);
}
}
// Stop bars
result.AddBit(false, true, false, true, false, true);
return(result);
}
public static IBarcode Encode(string content, bool includeChecksum, bool fullAsciiMode)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
if (fullAsciiMode)
{
content = Prepare(content);
}
else if (content.Contains("*"))
{
throw new InvalidOperationException("Invalid data! Try full ASCII mode");
}
var data = content;
if (includeChecksum)
{
data += GetChecksum(content, 20);
data += GetChecksum(data, 15);
}
data = "*" + data + "*";
var result = new BitList();
foreach (var r in data)
{
if (!Code93Constants.EncodingTable.TryGetValue(r, out (int value, uint data)info))
{
throw new InvalidOperationException("Invalid data");
}
result.AddBits(info.data, 9);
}
result.AddBit(true);
return(new Base1DCode(result, BarcodeType.Code93, content, Code93Constants.Margin));
}
public static IBarcodeIntCS Encode(string content, bool interleaved, bool includeChecksum)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
if (!Regex.IsMatch(content, @"^[0-9]*$"))
{
throw new InvalidOperationException("Can only encode numerical digits (0-9)");
}
char checksum = GetChecksum(content);
if (includeChecksum)
{
content = content + checksum;
}
if (interleaved && (content.Length % 2) == 1)
{
throw new InvalidOperationException("Can only encode an even number of digits in interleaved mode");
}
Constants.EncodeInfo mode = Constants.Modes[interleaved];
var resBits = new BitList();
resBits.AddBit(mode.Start);
char?lastChar = null;
foreach (var r in content)
{
bool[] a, b;
if (interleaved)
{
if (!lastChar.HasValue)
{
lastChar = r;
continue;
}
else
{
a = Constants.EncodingTable[lastChar.Value];
b = Constants.EncodingTable[r];
lastChar = null;
}
}
else
{
a = Constants.EncodingTable[r];
b = Constants.NonInterleavedSpace;
}
for (var i = 0; i < Constants.PatternWidth; i++)
{
for (var x = 0; x < mode.Widths[a[i]]; x++)
{
resBits.AddBit(true);
}
for (var x = 0; x < mode.Widths[b[i]]; x++)
{
resBits.AddBit(false);
}
}
}
resBits.AddBit(mode.End);
return(new Base1DCodeIntCS(resBits, interleaved ? BarcodeType.TwoOfFiveInterleaved : BarcodeType.TwoOfFive, content, checksum, Constants.Margin));
}
