UK postcode validation

[Mike P]

Can anybody tell me what are the valid formats for UK postcodes? As far
as I am aware postcodes can be 6-7 characters long (excluding spaces)
and the first part of the postcode can be 3-4 chars long and the second
part can only be 3 chars long. Am I missing any other valid formats?

 

[Peter Bradley]

How's this:

http://regexlib.com/REDetails.aspx?regexp_id=260


Peter

 

[Dylan Parry]

Can anybody tell me what are the valid formats for UK postcodes? As far
as I am aware postcodes can be 6-7 characters long (excluding spaces)
and the first part of the postcode can be 3-4 chars long and the second
part can only be 3 chars long. Am I missing any other valid formats?

A basic regular expression for UK postcodes would be something like:

/^[A-Z]{1,2}[1-9][0-9A-Z]? [0-9][A-Z]{2}$/

If that's of any help? It's certainly simpler than trying to explain the
ways in which they can be formatted!

Either way, it will handle codes like:

LL31 9XX
L66 2XU
WC1B 4BB

All of which are valid formats.

--
Dylan Parry
http://electricfreedom.org | http://webpageworkshop.co.uk

The opinions stated above are not necessarily representative of
those of my cats. All opinions expressed are entirely your own.

 

[Matt Lacey]

Can anybody tell me what are the valid formats for UK postcodes? As far
as I am aware postcodes can be 6-7 characters long (excluding spaces)
and the first part of the postcode can be 3-4 chars long and the second
part can only be 3 chars long. Am I missing any other valid formats?

*** Sent via Developersdexhttp://www.developersdex.com***

There is a good coverage of this on wikipedia: http://en.wikipedia.org/wiki/UK_postcodes
This entry on the Royal Mail site also explains what area, district,
sector and unit mean so you can get a better idea of the format:
http://www.royalmail.com/portal/rm/...eyname=postcodefinder&catId=28400668#14800240