UKPostCode
UKPostCode validates a UK postcode. UK postcodes are a complicated combination of letters and numbers. However, regular expression validation is perfect for this kind of task. This preset does not verify that the postcode is valid - merely that the format is correct. The primary components of this preset are a regular expression to validate the postcode, and a custom error message. Example valid postcodes are: A1 2BD, A12 3BC, AB12 3CD, AB1C 2DE .
