// Tell if the bank account is valid
func (e Exception5Checker) IsValid(b m.BankAccount, sc m.SortCodeData, attempt int) bool {
if !e.Handles(b, sc, attempt) {
panic("Should be exception of type 5")
}
if substitution, hasKey := e.Substitutions[b.SortCode]; hasKey {
b.SortCode = substitution
}
// First attempt
if attempt == 1 {
checkDigit := b.NumberAtPosition("g")
remainder := GeneralChecker{}.RemainderFromRegularCheck(b, sc)
if remainder == 0 && checkDigit == 0 {
return true
}
if remainder == 1 {
return false
}
return (11 - remainder) == checkDigit
}
// Second attempt
checkDigit := b.NumberAtPosition("h")
remainder := GeneralChecker{}.RemainderFromRegularCheck(b, sc)
if remainder == 0 && checkDigit == 0 {
return true
}
return (10 - remainder) == checkDigit
}
// Tell if the bank account is valid
func (e Exception9Checker) IsValid(b m.BankAccount, sc m.SortCodeData, attempt int) bool {
if !e.Handles(b, sc, attempt) {
panic("Should be exception of type 9")
}
sc.Weights = WeightsForException2Or9(b, sc)
if (GeneralChecker{}.IsValid(b, sc, attempt)) {
return true
}
// Try to replace the sort code
b.SortCode = "309634"
return GeneralChecker{}.IsValid(b, e.Weights[b.SortCode], attempt)
}
