/usr/share/perl5/Regexp/Common/CC.pm is in libregexp-common-perl 2011121001-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | package Regexp::Common::CC;
use Regexp::Common qw /pattern clean no_defaults/;
use Regexp::Common::_support qw /luhn/;
use strict;
use warnings;
use vars qw /$VERSION/;
$VERSION = '2010010201';
my @cards = (
# Name Prefix Length mod 10
[Mastercard => '5[1-5]', 16, 1],
[Visa => '4', [13, 16], 1],
[Amex => '3[47]', 15, 1],
# Carte Blanche
['Diners Club' => '3(?:0[0-5]|[68])', 14, 1],
[Discover => '6011', 16, 1],
[enRoute => '2(?:014|149)', 15, 0],
[JCB => [['3', 16, 1],
['2131|1800', 15, 1]]],
);
foreach my $card (@cards) {
my ($name, $prefix, $length, $mod) = @$card;
# Skip the harder ones for now.
next if ref $prefix || ref $length;
next unless $mod;
my $times = $length + $mod;
pattern name => [CC => $name],
version => 5.006,
create => sub {
use re 'eval';
qr <((?=($prefix))[0-9]{$length})
(?(?{Regexp::Common::_support::luhn $1})|(?!))>x
}
;
}
1;
__END__
=pod
=head1 NAME
Regexp::Common::CC -- provide patterns for credit card numbers.
=head1 SYNOPSIS
use Regexp::Common qw /CC/;
while (<>) {
/^$RE{CC}{Mastercard}$/ and print "Mastercard card number\n";
}
=head1 DESCRIPTION
Please consult the manual of L<Regexp::Common> for a general description
of the works of this interface.
Do not use this module directly, but load it via I<Regexp::Common>.
This module offers patterns for credit card numbers of several major
credit card types. Currently, the supported cards are: I<Mastercard>,
I<Amex>, I<Diners Club>, and I<Discover>.
=head1 SEE ALSO
L<Regexp::Common> for a general description of how to use this interface.
=over 4
=item L<http://www.beachnet.com/~hstiles/cardtype.html>
Credit Card Validation - Check Digits
=item L<http://euro.ecom.cmu.edu/resources/elibrary/everycc.htm>
Everything you ever wanted to know about CC's
=item L<http://www.webopedia.com/TERM/L/Luhn_formula.html>
Luhn formula
=back
=head1 AUTHORS
Damian Conway S<(I<damian@conway.org>)> and
Abigail S<(I<regexp-common@abigail.be>)>.
=head1 MAINTAINANCE
This package is maintained by Abigail S<(I<regexp-common@abigail.be>)>.
=head1 BUGS AND IRRITATIONS
Bound to be plenty. Send them in to S<I<regexp-common@abigail.be>>.
=head1 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.
=cut
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