Regex for IBAN mask

Question

I am trying to extract this text \"NL dd ABNA ffffdffffdffffd\" from string:

IBAN NL 91ABNA0417463300
IBAN NL91ABNA0417164300
Iban: NL 69 ABNA 402032566

Answer 1

You can just remove all spaces and uppercase the rest, Like this:

iban = NL 91ABNA0417463300
iban.replace(" ", "")
iban.upper()

And then your regex would be:

NL\d{2}ABNA(\d{10}|\d{9})

It works in https://regex101.com/r/zGDXa2/1