Regexp::Common::CC -- provide patterns for credit card numbers.

       Damian Conway (damian@conway.org) and Abigail (regexp-common@abigail.freedom.nl).

       Bound to be plenty. Send them in to regexp-common@abigail.freedom.nl.

       Please consult the manual of Regexp::Common for a general description of the works of this interface.

       Do not use this module directly, but load it via Regexp::Common.

       This module offers patterns for credit card numbers of several major credit card types. Currently, the
       supported cards are: Mastercard, Amex, DinersClub, and Discover.

       This software is Copyright (c) 2001 - 2024, 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 License.               See the file COPYRIGHT.BSD.
        4) The MIT License.               See the file COPYRIGHT.MIT.

perl v5.38.2                                       2024-08-10                            Regexp::Common::CC(3pm)

       This package is maintained by Abigail (regexp-common@abigail.freedom.nl).

       Regexp::Common::CC -- provide patterns for credit card numbers.

       Regexp::Common for a general description of how to use this interface.

       <http://www.freedom.nlachnet.com/~hstiles/cardtype.html>
           Credit Card Validation - Check Digits

       <http://euro.ecom.cmu.edu/resources/elibrary/everycc.htm>
           Everything you ever wanted to know about CC's

       <http://www.webopedia.com/TERM/L/Luhn_formula.html>
           Luhn formula

           use Regexp::Common qw /CC/;

           while (<>) {
               /^$RE{CC}{Mastercard}$/   and  print "Mastercard card number\n";
           }