not perfect but better than anything I could find.

Check validity of monero addresses

Check validity of ethereum address

Check validity of ripple address

Inspired by Micheal Musson entry Wich was hard to use in regex flavours that don't support recursion (C# engine doesn't) i've build my own simpler version wich matches what i would accept as validation entry

Test on the most basic possible form of credit card numbers.

Separation of bank statement description``

ul li discovered

Saudi Postal Code has five digits, if you would to have more information check the below: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ First Digit (Postal Regions): "The postal region number is represented by the first digit of the postal code" ...

Regular expression for phone numbers validation that formatted with mukeshsoni/country-telephone-data