Maybe it's just me, but I like to have validation routines that go with the modules which actually deal with the data type at hand. For example, Business::CreditCard has a validate function. The documentation of URI shows the "official" regex to match an URI. Date::Calc functions will return an error when fed an invalid date.

The terms strong cohesion and loose coupling spring to mind. Functions for validating data should be part of the module processing that data. Having a separate module with all kinds of unrelated validation routines increases the risk of (possibly) not keeping up with changes in the format, and I don't really need credit card number validation routines in my logfile processing script which extracts IP addresses.

Arjen

In reply to Re: Data Validation Tests by Aragorn
in thread Data Validation Tests by Flame

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