REgular expression for validation

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Hi,

Any one please provide the regular expression for this validation

Canadian Postal Code can be shown as A1A 1A1 or A1A1A1 (where A can be any letter and 1 can be any number 0 to 9).

Posted 9-Jul-13 23:25pm

Ganesh_verma

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Thomas Daniels · Answer 1 · 2013-07-09T23:52:00

Hi,

Try this RegEx:

^[A-Z]\d[A-Z][ ]?\d[A-Z]\d$

But a warning: a regular expression to validate a postcode it's not sufficient to guarantee that the postcode really exists!
Please see: http://stackoverflow.com/a/11149740[^]

http://stackoverflow.com/a/11149740[^]
A regex approach can validate the format of a Canadian postcode, but it's not sufficient to guarantee that the postcode actually exists.

For example: A9A 0A0 looks like a valid Canadian postcode, but the forward sortation area A9A doesn't actually exist.

Are you sure you wouldn't rather do some kind of lookup against an official list of postcodes?