File Coverage

blib/lib/Algorithm/CheckDigits/MBase_002.pm

Criterion	Covered	Total	%
statement	43	48	89.5
branch	7	14	50.0
condition	3	5	60.0
subroutine	11	11	100.0
pod	4	5	80.0
total	68	83	81.9

package Algorithm::CheckDigits::MBase_002;

use 5.006;
use strict;
use warnings;
use integer;

use version; our $VERSION = 'v1.3.4';

our @ISA = qw(Algorithm::CheckDigits);

sub new {
	my $proto = shift;
	my $type  = shift;
	my $class = ref($proto) || $proto;
	my $self  = bless({}, $class);
	$self->{type} = lc($type);
	return $self;
} # new()

sub is_valid {
	my ($self,$number) = @_;
	if ($number =~ /^(.+)(.)$/) {
		return uc($2) eq $self->_compute_checkdigit($1);
	}
	return ''
} # is_valid()

sub complete {
	my ($self,$number) = @_;
	if ($number =~ /^[ 0-9]+$/) {
		return  $number . $self->_compute_checkdigit($number);
	}
	return '';
} # complete()

sub basenumber {
	my ($self,$number) = @_;
	if ($number =~ /^(.+)(.)$/) {
		return $1 if (uc($2) eq $self->_compute_checkdigit($1));
	}
	return '';
} # basenumber()

sub checkdigit {
	my ($self,$number) = @_;
	if ($number =~ /^(.+)(.)$/) {
		return $2 if (uc($2) eq $self->_compute_checkdigit($1));
	}
	return '';
} # checkdigit()

sub _compute_checkdigit {
	my $self   = shift;
	my $number = shift;

	if ($number =~ /^[ 0-9]+$/) {

		$number =~ s/ //g;
		my @digits = split(//,$number);
		my $sum    = 0;
		my $prod   = 10;

		for (my $i = 0; $i <= $#digits; $i++) {

			$sum  = (($prod + $digits[$i]) % 10) || 10;
			$prod = (2 * $sum) % 11;

		}
		return (11 - $prod) % 10;
	}
	return -1;
} # _compute_checkdigit()

# Preloaded methods go here.

1;
__END__