public static bool IsValid_SGTIN_96(string hex_SGTIN_96, bool checkHeader = false, bool checkPartition = false)
{
if (!Regex.IsMatch(hex_SGTIN_96, @"\A\b[0-9a-fA-F]+\b\Z") || hex_SGTIN_96.Length != 24)
{
return(false);
}
var ranges = new SGTIN_96_Ranges();
var binaryString = string.Join(string.Empty,
hex_SGTIN_96.Select(c => Convert.ToString(Convert.ToInt32(c.ToString(), 16), 2).PadLeft(4, '0')));
if (checkHeader)
{
var headerBinary = binaryString.Substring(ranges.HeaderStart, ranges.HeaderLength);
var headerInt = Convert.ToInt32(headerBinary, 2);
if (headerInt != 48)
{
return(false);
}
}
if (checkPartition)
{
var partitionBinary = binaryString.Substring(ranges.PartitionStart, ranges.PartitionLength);
var partitionInt = Convert.ToInt16(partitionBinary, 2);
if (partitionInt > 6)
{
return(false);
}
}
return(true);
}
public static SGTIN_96 Decode_SGTIN_96(string EPC_tag)
{
// result of SGTIN-96 object
var result = new SGTIN_96();
result.HexValue = EPC_tag;
//check if EPC_tag is valid SGTIN-96 tag
if (!Validator.IsValid_SGTIN_96(EPC_tag, true, true))
{
result.IsProperlyEncoded = false;
result.ItemReference = 0;
return(result);
}
result.IsProperlyEncoded = true;
// object for SGTIN-96 ranges
var ranges = new SGTIN_96_Ranges();
//converting SGTIN-96 to binary string
string binaryString = "";
//binaryString = Convert.ToString(Convert.ToInt32(EPC_tag, 16), 2);
binaryString = string.Join(
string.Empty,
EPC_tag.Select(c => Convert.ToString(Convert.ToInt32(c.ToString(), 16), 2).PadLeft(4, '0')));
//separating and decoding binary string
var headerBinary = binaryString.Substring(ranges.HeaderStart, ranges.HeaderLength);
result.Header = Convert.ToInt32(headerBinary, 2);
var filterBinary = binaryString.Substring(ranges.FilterStart, ranges.FilterLength);
result.Filter = Convert.ToInt16(filterBinary, 2);
var partitionBinary = binaryString.Substring(ranges.PartitionStart, ranges.PartitionLength);
result.Partition = Convert.ToInt16(partitionBinary, 2);
var partitionResult = PartitionResolveHelper.GetCompanyPrefixAndItemReference(result.Partition);
var companyPrefixBinary = binaryString.Substring(ranges.CompanyPrefixStart, partitionResult.CompanyPrefixBitsCount);
result.CompanyPrefix = Convert.ToInt64(companyPrefixBinary, 2);
var itemReferenceBinary = binaryString.Substring(ranges.CompanyPrefixStart + partitionResult.CompanyPrefixBitsCount, partitionResult.ItemReferenceBitsCount);
result.ItemReference = Convert.ToInt32(itemReferenceBinary, 2);
result.SerialNumber = string.Concat(binaryString.TakeLast(ranges.SerialNumberLength));
return(result);
}
