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 under the
8 # terms of the GNU General Public License as published by the Free Software
9 # Foundation; either version 2 of the License, or (at your option) any later
12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14 # A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License along
17 # with Koha; if not, write to the Free Software Foundation, Inc.,
18 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 use Algorithm::CheckDigits;
28 use vars qw($VERSION @ISA);
29 use vars qw($debug $cgi_debug); # from C4::Debug, of course
33 @ISA = qw(C4::Barcodes);
38 my $barcode = (@_) ? shift : $self->value;
39 my $ean = CheckDigits('ean');
40 if ( $ean->is_valid($barcode) ) {
41 return ( '', $ean->basenumber($barcode), $ean->checkdigit($barcode) );
43 die "$barcode not valid EAN-13 barcode";
48 my ( $self,$tail,$whole,$specific ) = @_;
49 my $ean = CheckDigits('ean');
50 my $full = $ean->complete($whole);
51 my $chk = $ean->checkdigit($full);
52 $debug && warn "# process_tail $tail -> $chk [$whole -> $full] $specific";