8f2dcc6741
This is consistent with implementation of other barcode types which all carp instead of die on invalid barcodes.
59 lines
1.6 KiB
Perl
59 lines
1.6 KiB
Perl
package C4::Barcodes::EAN13;
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# Copyright 2012 Koha Development team
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with Koha; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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use strict;
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use warnings;
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use C4::Context;
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use C4::Debug;
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use Algorithm::CheckDigits;
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use Carp;
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use vars qw($VERSION @ISA);
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use vars qw($debug $cgi_debug); # from C4::Debug, of course
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BEGIN {
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$VERSION = 0.01;
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@ISA = qw(C4::Barcodes);
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}
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sub parse {
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my $self = shift;
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my $barcode = (@_) ? shift : $self->value;
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my $ean = CheckDigits('ean');
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if ( $ean->is_valid($barcode) ) {
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return ( '', $ean->basenumber($barcode), $ean->checkdigit($barcode) );
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} else {
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carp "$barcode not valid EAN-13 barcode";
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return ( '', $barcode, '' );
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}
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}
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sub process_tail {
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my ( $self,$tail,$whole,$specific ) = @_;
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my $ean = CheckDigits('ean');
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my $full = $ean->complete($whole);
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my $chk = $ean->checkdigit($full);
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$debug && warn "# process_tail $tail -> $chk [$whole -> $full] $specific";
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return $chk;
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}
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1;
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__END__
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