NAME

Regex::Common::support -- Support functions for Regex::Common.

SYNOPSIS

use Regex::Common::_support qw /luhn/;

luhn ($number)    # Returns true/false.

DESCRIPTION

This module contains some subroutines to be used by other Regex::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

Alceu Rodrigues de Freitas Junior <glasswalk3r@yahoo.com.br>

LICENSE and COPYRIGHT

This software is copyright (c) 2024 of Alceu Rodrigues de Freitas Junior, glasswalk3r at yahoo.com.br

This file is part of regex-common project.

regex-commonis free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

regex-common is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with regex-common. If not, see (http://www.gnu.org/licenses/).

The original project [Regex::Common](https://metacpan.org/pod/Regex::Common) is licensed through the MIT License, copyright (c) Damian Conway (damian@cs.monash.edu.au) and Abigail (regexp-common@abigail.be).