package Business::CreditCard;
-# Business::CreditCard.pm
-#
# Jon Orwant, <orwant@media.mit.edu>
#
-# 12 Jul 96 - created
-# 17 Jan 97 - 0.21 released.
-# short numbers and numbers with letters are no longer kosher.
-# 1 Feb 2001 - 0.22 released, new maintainer, MakeMaker installation
-# 3 May 2001 - 0.23 released, silly bug in test.pl
-#
# Copyright 1995,1996,1997 Jon Orwant. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
-#
-# Version 0.23. Module list status is "Rdpf."
+#
+# Current maintainer is Ivan Kohler <ivan-business-creditcard@420.am>.
+# Please don't bother Jon with emails about this module.
require 5;
@ISA = qw( Exporter );
-$VERSION = "0.23";
+$VERSION = "0.28";
=head1 NAME
the checksum test, and 0 otherwise.
The cardtype() subroutine returns a string containing the type of
-card: "MasterCard", "VISA", and so on. My list is not complete;
-I welcome additions.
+card. My list is not complete; I welcome additions.
+
+Possible return values are:
+
+ VISA card
+ MasterCard
+ Discover card
+ American Express card
+ Diner's Club/Carte Blanche
+ enRoute
+ JCB
+ BankCard
+ Switch
+ Solo
+ Unknown
+
+"Not a credit card" is returned on obviously invalid
+data values.
The generate_last_digit() subroutine computes and returns the last
digit of the card given the preceding digits. With a 16-digit card,
Current maintainer is Ivan Kohler <ivan-business-creditcard@420.am>.
Please don't bother Jon with emails about this module.
+Lee Lawrence <LeeL@aspin.co.uk>, Neale Banks <neale@lowendale.com.au> and
+Max Becker <Max.Becker@firstgate.com> contributed support for additional card
+types. Lee also contributed a working test.pl.
+
=cut
@EXPORT = qw(cardtype validate generate_last_digit);
return "Not a credit card" unless length($number) >= 13 && 0+$number;
- return "VISA card" if substr($number,0,1) == "4";
- return "MasterCard" if substr($number,0,1) == "5";
- return "Discover card" if substr($number,0,1) == "6";
- return "American Express card" if substr($number,0,2) == "37";
- return "Diner's Club, Transmedia, or other dining/entertainment card" if substr($number,0,1) == "3";
+ return "VISA card" if $number =~ /^4\d{12}(\d{3})?$/o;
+ return "MasterCard" if $number =~ /^5[1-5]\d{14}$/o;
+ return "Discover card" if $number =~ /^6011\d{12}$/o;
+ return "American Express card" if $number =~ /^3[47]\d{13}$/o;
+ return "Diner's Club/Carte Blanche"
+ if $number =~ /^3(0[0-5]|[68]\d)\d{11}$/o;
+ return "enRoute" if $number =~ /^2(014|149)\d{11}$/o;
+ return "JCB" if $number =~ /^(3\d{4}|2131|1800)\d{11}$/o;
+ return "BankCard" if $number =~ /^56(10\d\d|022[1-5])\d{10}$/o;
+ return "Switch"
+ if $number =~ /^49(03(0[2-9]|3[5-9])|11(0[1-2]|7[4-9]|8[1-2])|36[0-9]{2})\d{10}(\d{2,3})?$/o
+ || $number =~ /^564182\d{10}(\d{2,3})?$/o
+ || $number =~ /^6(3(33[0-4][0-9])|759[0-9]{2})\d{10}(\d{2,3})?$/o;
+ return "Solo"
+ if $number =~ /^6(3(34[5-9][0-9])|767[0-9]{2})\d{10}(\d{2,3})?$/o;
return "Unknown";
}
+# from http://perl.about.com/compute/perl/library/nosearch/P073000.htm
+# verified by http://www.beachnet.com/~hstiles/cardtype.html
+# Card Type Prefix Length
+# MasterCard 51-55 16
+# VISA 4 13, 16
+# American Express (AMEX) 34, 37 15
+# Diners Club/Carte Blanche 300-305, 36, 38 14
+# enRoute 2014, 2149 15
+# Discover 6011 16
+# JCB 3 16
+# JCB 2131, 1800 15
+#
+# from Neale Banks <neale@lowendale.com.au>
+# According to a booklet I have from Westpac (an Aussie bank), a card number
+# starting with 5610 or 56022[1-5] is a BankCard
+# BankCards have exactly 16 digits.
+#
+# from "Becker, Max" <Max.Becker@firstgate.com>
+# It's mostly used in the UK and is either alled "Switch" or "Solo".
+# Card Type Prefix Length
+# Switch various 16,18,19
+# Solo 63, 6767 16,18,19
+
sub generate_last_digit {
my ($number) = @_;
my ($i, $sum, $weight);