public bool IsExceptionThreeAndCanSkipSecondCheck()
{
return(WeightMappings.Second()
.Exception == 3 &&
(AccountNumber.IntegerAt(2) == 6 ||
AccountNumber.IntegerAt(2) == 9));
}
public int[] GetExceptionTwoAlternativeWeights(int[] originalWeights)
{
if (AccountNumber.IntegerAt(0) != 0)
{
return(AccountNumber.IntegerAt(6) == 9
? AisNotZeroAndGisNineWeights
: AisNotZeroAndGisNotNineWeights);
}
return(originalWeights);
}
private void ExceptionSevenPreprocessing()
{
if (WeightMappings.First().Exception != 7)
{
return;
}
if (AccountNumber.IntegerAt(6) != 9)
{
return;
}
ZeroiseUtoB(WeightMappings.First());
}
private IList <ModulusWeightMapping> ExceptionSevenPreprocessing(IList <ModulusWeightMapping> mappings)
{
if (mappings.First().Exception != 7)
{
return(mappings);
}
if (AccountNumber.IntegerAt(6) != 9)
{
return(mappings);
}
return(mappings.Select((m, index) => index == 0 ? ZeroiseUtoB(m) : m).ToList());
}
