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Regexp::Common::_support(3)          User Contributed Perl Documentation         Regexp::Common::_support(3)



NAME
       Regexp::Common::support -- Support functions for Regexp::Common.

SYNOPSIS
           use Regexp::Common::_support qw /luhn/;

           luhn ($number)    # Returns true/false.

DESCRIPTION
       This module contains some subroutines to be used by other "Regexp::Common" modules. It's not intended
       to be used directly. Subroutines from the module may disappear without any notice, or their meaning
       or interface may change without notice.

       luhn
           This subroutine returns true if its argument passes the luhn checksum test.

SEE ALSO
       <http://www.webopedia.com/TERM/L/Luhn_formula.html>.

AUTHOR
       Abigail (regexp-common@abigail.be).

BUGS AND IRRITATIONS
       Bound to be plenty.

LICENSE and COPYRIGHT
       This software is Copyright (c) 2001 - 2009, Damian Conway and Abigail.

       This module is free software, and maybe used under any of the following licenses:

        1) The Perl Artistic License.     See the file COPYRIGHT.AL.
        2) The Perl Artistic License 2.0. See the file COPYRIGHT.AL2.
        3) The BSD Licence.               See the file COPYRIGHT.BSD.
        4) The MIT Licence.               See the file COPYRIGHT.MIT.



perl v5.12.5                                     2010-02-23                      Regexp::Common::_support(3)