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Regular Expression Details

Title Test Find UK Postcode Sector (Loose Match)
Expression
[A-Za-z]{1,2}[\d]{1,2}[A-Za-z]{0,1}\s*[\d]
Description
The postcode sector is the first block (the postcode district) of a UK postcode plus the first number of the second block. For example with DN55 1PT it would match DN55 1. Its a loose match as it only ensures that the format is correct, it doesn't validate the letters and numbers. It doesn't let in the non-geographic codes postcodes SAN TA1 and GIR 0AA. It will pull out the first block & the sector code of any of the matching examples below. Examples of the names of the different parts of a UK postcode can be found here: http://en.wikipedia.org/wiki/Postcodes_in_the_United_Kingdom#Life-cycle_of_post_codes
Matches
AA9A 9AA | A9A 9AA | A9 9AA | A99 9AA | AA9 9AA | AA99 9AA | EC1A 1BB | W1A 1HQ | M1 1AA | B33 8TH | CR2 6XH | DN55 1PT | AA9A9AA | A9A9AA | A99AA | A999AA | AA99AA | AA999AA
Non-Matches
SAN TA1 | GIR 0AA
Author Rating: Not yet rated. Matthew Harris
Source
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