Iban

An IBAN (ISO 13616) in its electronic form, upper case with no spaces, its mod-97 check digits passing: GB29NWBK60161331926819. Shown to people in fours.

Money and banking; not ordered; personal data (financial); since Jadpo 0.1.0.

Make one

Build one from its text, Iban("GB29NWBK60161331926819"), which checks it: text that isn't one breaks format.

text.parse(raw, as: Iban) reads one from its text; text that isn't one at all fails malformed, such as GB29NWBK60161331926818, GB29 NWBK 6016 1331 9268 19 or gb29nwbk60161331926819.

Text, JSON and storage

text.from writes its canonical text, the one form text.parse reads back. JSON sends its canonical text as a string.

It is stored in one column named for the field, of type text. FR1420041010050500013M02606 is stored as 'FR1420041010050500013M02606'.

Shown to people

text.format(value, locale:) shows it to people in their locale.

With locale: Locale.en_gb:

Operations

It has the contract's own operations: text.parse, text.from, text.format, json.read, json.write and ==. It isn't ordered, so < and sorting don't take it. Every standard type meets one contract says how they work.