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# This file is part of the Mageia project                                                                                                                   
#
# Copyright (C) 2011 Damien Lallement <dams@mageia.org>                                                                                                   
#           (C) 2011 Romain d'Alverny <rda@mageia.org>                                                                                                    
#                                                                                                                                                         
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
# 
# This library 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
# Library General Public License for more details.
# 
# You should have received a copy of the GNU Library General Public License
# along with this library; see the file COPYING.LIB.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
#

=head1 NAME

    Isocheck - miscellaneous functions

=head1 SYNOPSIS

    use Isocheck;

=head1 EXPORTS

=over 

=item parse_image_file_name(STRING)

return a populated hash if param is a valid image file name
(see https://wiki.mageia.org/en/Product_naming ).

return empty hash if invalid.

=back

=cut

package Isocheck;

use strict;
use warnings;

our $VERSION = '0.2.0';

use base 'Exporter';

our @EXPORT = qw(parse_image_file_name);

sub parse_image_file_name {
    my ($name) = @_;

    return unless $name =~ m/^
        (
            (\w+)                                # name
            -
            (\d+)                                # version
            (?:-((?:nightly|alpha|beta|RC)\d*))? # release
            (?:-(.+))?                           # variant
            -
            (i586|x86_64|dual)                   # arch
            (?:-(CD|DVD|BR))?                    # medium
            (?:-(build_\w+))?                    # build
        )
        \.
        (\w+)                                    # extension
        $/x;

    my %info = (
        full    => $1,
        name    => $2,
        version => $3,
        defined $4 ? (release => $4) : (),
        defined $5 ? (variant => $5) : (),
        arch    => $6,
        defined $7 ? (medium  => $7) : (),
        defined $8 ? (build   => $8) : (),
        ext     => $9
    );

    return %info;
}

1;