Hmmm... Regex:
>
> This is a first stab at one...
>
> RegEx = ^[a-zA-Z]{1,2}[1-9]{1,2}[ ]{1}[1-9]{1,2}[a-zA-Z]{1,2}&
Wouldn't work for something like
SW1P
Which is a Westminster postcode
Adding this in it is slightly more complicated (and therefore more easy to
hack), Postcodes are always upper case too:
RegEx = ^[A-Z]{1,2}[1-9][0-9A-Z]?[ ]{1}[1-9]{1,2}[A-Z]{1,2}&
Unfortunately, this also equals:
XX1X which is definitely not a postcode
Goes back to my original statement that you need to actually have a list of
postcodes to test against, which means buying the postcode database from the
Royal Mail.
The only way to really make a postcode that isn't going to be hackable is to
have all of the postcodes! It's not a string that can be simply tested with
a regular expression (although it can be verified as a POSSIBLE postcode)
Paul
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