NAME
    Exporter::Constants - Declare constants and export it.

SYNOPSIS
        package My::Constants;
        # declare constants and push to @EXPORT
        use parent qw/Exporter/;
        our @EXPORT;
        our @EXPORT_OK;

        use Exporter::Constants (
            \@EXPORT => {
                'TYPE_A' => 4649,
                'TYPE_B' => 5963
            },
            \@EXPORT_OK => {
                'TYPE_C' => 1919,
                'TYPE_D' => 0721
            }
        );

        package main;
        use My::Constants;

        # constants are exported.
        print TYPE_A, "\n";

DESCRIPTION
    This module help to declare & export constants.

MOTIVATION
    I want to declare My::Own::Constants package when writing applications.
    These class declares constants and export to other application classes.

    I can do this task by Exporter.pm and constants.pm. But I want to do it
    at once.

AUTHOR
    Tokuhiro Matsuno <tokuhirom AAJKLFJEF@ GMAIL COM>

LICENSE
    Copyright (C) Tokuhiro Matsuno

    This library is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself.