CGI::Untaint::uk_postcode - validate a UK postcode
use CGI::Untaint; my $handler = CGI::Untaint->new($q->Vars); my $url = $handler->extract( -as_uk_postcode => 'postcode' );
This CGI::Untaint input handler verifies that it is dealing with a reasonably plausible UK postcode, according to some checks by the Royal Mail.
Due to the complexities of the UK postal code system it is impossible to accurately check if the postcode is real, or even if it is of a completely valid format. As such there may be false positives. There should not, however, be any false negatives, so if you find any valid postcodes that this rejects, PLEASE let me know.
Tony Bowden. Based on original regular expression by Craig Berry.
Please direct all correspondence regarding this module to: bug-CGI-Untaintfirstname.lastname@example.org
Copyright (C) 2001-2005 Tony Bowden. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.