dITO IBAN validator, stand and deliver
Author: email@example.com (ulrich-merkel)
this idea was sparked by Theo Neeskens Blog about IBAN at http://theunifaceuniverse.blogspot.de/2012/06/new-millenium-problem.html
and pubished it on the linkedin uniface group as
Have you started your IBAN project already?
The idea is not HOW to implement an IBAN validation, which is pretty simple,
but provide and maintain validation against a complete set of IBAN specifications, even for "rarely used" countries.
So beside the checkdigit, we can implement a couple of other checks, where the length test is only the most prominent one.
It's an international standard, so it is best suited for an overall routine shared by all uniface users instead of doing the same job 1000 times locally, isn't it?