Sebb created VALIDATOR-414:
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Summary: Simplify CreditCard validation
Key: VALIDATOR-414
URL: https://issues.apache.org/jira/browse/VALIDATOR-414
Project: Commons Validator
Issue Type: Improvement
Components: CreditCard
Reporter: Sebb
It's tricky validating Credit card numbers using only regular expressions.
It would be a lot simpler to check the syntax (digits only) and length, and
then validate the IIN (initial 6 digits) separately using numeric ranges.
No need even to convert the strings to numbers, because string comparison would
work just as well.
Unfortunately CreditCardValidator uses the final class CodeValidator in its
public API, but the latter can accept a RegexValidator which can be subclassed
to provide the necessary functionality. This should be possible without further
exposing the internal workings.
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