File Coverage

blib/lib/Algorithm/CheckDigits/MXX_002.pm

Criterion	Covered	Total	%
statement	42	45	93.3
branch	8	14	57.1
condition	1	3	33.3
subroutine	11	11	100.0
pod	4	5	80.0
total	66	78	84.6

# vim: set ts=4 sw=4 tw=78 et si:
package Algorithm::CheckDigits::MXX_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 ( $number =~ /^(\d{1,7}-?\d{2}-?)(\d)$/ ) {
        return 1 if ( $2 == $self->_compute_checkdigit($1) );
    }
    return '';
}    # is_valid()

sub complete {
    my ( $self, $number ) = @_;
    if ( $number =~ /^\d{1,7}-?\d{2}-?$/ ) {
        return $number . $self->_compute_checkdigit($number);
    }
    return '';
}    # complete()

sub basenumber {
    my ( $self, $number ) = @_;
    if ( $number =~ /^(\d{1,7}-?\d{2}-?)(\d)$/ ) {
        return $1 if ( $2 == $self->_compute_checkdigit($1) );
    }
    return '';
}    # basenumber()

sub checkdigit {
    my ( $self, $number ) = @_;
    if ( $number =~ /^(\d{1,7}-?\d{2}-?)(\d)$/ ) {
        return $2 if ( $2 == $self->_compute_checkdigit($1) );
    }
    return '';
}    # checkdigit()

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

    $number =~ s/-//g;
    my @digits = split( //, $number );
    my $weight = 1;
    my $sum    = 0;

    for ( my $i = $#digits; $i >= 0; $i-- ) {
        $sum += $digits[$i] * $weight++;
    }

    return $sum % 10;
}    # _compute_checkdigit()

# Preloaded methods go here.

1;
__END__