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.