format string (postcode) in ruby

Posted by noddy on Stack Overflow See other posts from Stack Overflow or by noddy
Published on 2010-04-08T09:06:37Z Indexed on 2010/04/08 9:13 UTC
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Filed under:

ruby

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regex

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postcode

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UK

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gsub

I need to re-format a list of UK postcodes and have started with the following to strip whitespace and capitalize:

postcode.upcase.gsub(/\s/,'')

I now need to change the postcode so the new postcode will be in a format that will match the following regexp:

^([A-PR-UWYZ0-9][A-HK-Y0-9][AEHMNPRTVXY0-9]?[ABEHMNPRVWXY0-9]? {1,2}[0-9][ABD-HJLN-UW-Z]{2}|GIR 0AA)$

I would be grateful of any assistance.

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