Regexp::Common::_support
Section: User Contributed Perl Documentation (3)
Updated: 2021-01-27
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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 - 2017, 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.