1 package C4::Barcodes::EAN13;
3 # Copyright 2012 Koha Development team
5 # This file is part of Koha.
7 # Koha is free software; you can redistribute it and/or modify it
8 # under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
12 # Koha is distributed in the hope that it will be useful, but
13 # WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
25 use Algorithm::CheckDigits qw( CheckDigits );
31 @ISA = qw(C4::Barcodes);
36 my $barcode = (@_) ? shift : $self->value;
37 my $ean = CheckDigits('ean');
38 if ( $ean->is_valid($barcode) ) {
39 return ( '', $ean->basenumber($barcode), $ean->checkdigit($barcode) );
41 carp "$barcode not valid EAN-13 barcode";
42 return ( '', $barcode, '' );
47 my ( $self,$tail,$whole,$specific ) = @_;
48 my $ean = CheckDigits('ean');
49 my $full = $ean->complete($whole);
50 my $chk = $ean->checkdigit($full);