Koha/C4/Barcodes/EAN13.pm
Jonathan Druart a6c9bd0eb5 Bug 9978: Replace license header with the correct license (GPLv3+)
Signed-off-by: Chris Nighswonger <cnighswonger@foundations.edu>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>

http://bugs.koha-community.org/show_bug.cgi?id=9987

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
2015-04-20 09:59:38 -03:00

59 lines
1.6 KiB
Perl

package C4::Barcodes::EAN13;
# Copyright 2012 Koha Development team
#
# This file is part of Koha.
#
# Koha is 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.
#
# Koha 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 Koha; if not, see <http://www.gnu.org/licenses>.
use strict;
use warnings;
use C4::Context;
use C4::Debug;
use Algorithm::CheckDigits;
use Carp;
use vars qw($VERSION @ISA);
use vars qw($debug $cgi_debug); # from C4::Debug, of course
BEGIN {
$VERSION = 0.01;
@ISA = qw(C4::Barcodes);
}
sub parse {
my $self = shift;
my $barcode = (@_) ? shift : $self->value;
my $ean = CheckDigits('ean');
if ( $ean->is_valid($barcode) ) {
return ( '', $ean->basenumber($barcode), $ean->checkdigit($barcode) );
} else {
carp "$barcode not valid EAN-13 barcode";
return ( '', $barcode, '' );
}
}
sub process_tail {
my ( $self,$tail,$whole,$specific ) = @_;
my $ean = CheckDigits('ean');
my $full = $ean->complete($whole);
my $chk = $ean->checkdigit($full);
$debug && warn "# process_tail $tail -> $chk [$whole -> $full] $specific";
return $chk;
}
1;
__END__