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lib/Algorithm/CheckDigits/M23_001.pm  view on Meta::CPAN

package Algorithm::CheckDigits::M23_001;

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

use version; our $VERSION = 'v1.3.6';

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

my @keytable = (
	'T', 'R', 'W', 'A', 'G', 'M', 'Y', 'F',
	'P', 'D', 'X', 'B', 'N', 'J', 'Z', 'S',
	'Q', 'V', 'H', 'L', 'C', 'K', 'E',
);

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 ($number =~ /^(\d{8})-?([A-HJ-NP-TV-Z])$/i) {
		return $2 eq $self->_compute_checkdigit($1);
	}
	return ''
} # is_valid()

sub complete {
	my ($self,$number) = @_;
	if ($number =~ /^(\d{8})-?$/i) {
		return $number . $self->_compute_checkdigit($1);
	}
	return '';
} # complete()

sub basenumber {
	my ($self,$number) = @_;
	if ($number =~ /^(\d{8}-?)([A-HJ-NP-TV-Z])$/i) {
		return $1 if (uc($2) eq $self->_compute_checkdigit($1));
	}
	return '';
} # basenumber()

sub checkdigit {
	my ($self,$number) = @_;
	if ($number =~ /^(\d{8})-?([A-HJ-NP-TV-Z])$/i) {
		return $2 if (uc($2) eq $self->_compute_checkdigit($1));
	}
	return '';
} # checkdigit()

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

	$number =~ s/-//g;
	if ($number =~ /^\d{8}$/i) {
		return $keytable[($number % 23)];
	}
	return -1;
} # _compute_checkdigit()

# Preloaded methods go here.

1;
__END__

=head1 NAME

CheckDigits::M23_001 - compute check digits for DNI (ES)

=head1 SYNOPSIS

  use Algorithm::CheckDigits;