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package Algorithm::CheckDigits::M10_002; |
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use 5.006; |
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1
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use strict; |
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5
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use warnings; |
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2
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1
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46
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6
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1
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1
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use integer; |
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1
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1
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1
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use version; our $VERSION = 'v1.3.5'; |
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our @ISA = qw(Algorithm::CheckDigits); |
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sub new { |
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0
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my $proto = shift; |
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2
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my $type = shift; |
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2
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12
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my $class = ref($proto) || $proto; |
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2
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my $self = bless({}, $class); |
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2
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$self->{type} = lc($type); |
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2
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return $self; |
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} # new() |
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sub is_valid { |
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1
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my ($self,$number) = @_; |
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4
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50
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if ($number =~ /^([0-9 ]*)([0-9])$/) { |
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4
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return $2 == $self->_compute_checkdigit($1); |
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} |
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0
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0
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return '' |
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} # is_valid() |
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sub complete { |
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2
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1
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189
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my ($self,$number) = @_; |
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2
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50
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if ($number =~ /^[0-9 ]*$/) { |
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2
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return $number . $self->_compute_checkdigit($number); |
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} |
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0
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0
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return ''; |
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} # complete() |
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sub basenumber { |
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2
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2
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1
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my ($self,$number) = @_; |
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2
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50
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13
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if ($number =~ /^([0-9 ]*)([0-9])$/) { |
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2
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50
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return $1 if ($2 == $self->_compute_checkdigit($1)); |
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} |
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0
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0
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return ''; |
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} # basenumber() |
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45
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sub checkdigit { |
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2
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2
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1
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6
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my ($self,$number) = @_; |
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2
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50
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13
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if ($number =~ /^([0-9 ]*)([0-9])$/) { |
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2
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50
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6
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return $2 if ($2 == $self->_compute_checkdigit($1)); |
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} |
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0
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0
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return ''; |
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} # checkdigit() |
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53
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sub _compute_checkdigit { |
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10
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10
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my $self = shift; |
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10
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24
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my $number = shift; |
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10
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34
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$number =~ s/\s//g; |
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10
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50
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33
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if ($number =~ /^([0-9]*)$/) { |
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10
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46
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my @digits = split(//,$number); |
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10
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16
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my $even = 1; |
60
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10
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15
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my $sum = 0; |
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10
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27
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for (my $i = $#digits; $i >= 0; $i--) { |
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105
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100
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157
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if ($even) { |
63
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55
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89
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my $tmp = 2 * $digits[$i]; |
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55
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81
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$sum += $tmp / 10 + $tmp % 10; |
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} else { |
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50
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73
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$sum += $digits[$i]; |
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} |
68
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105
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193
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$even = not $even; |
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} |
70
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10
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68
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return (10 - $sum % 10) % 10; |
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} |
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0
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return -1; |
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} # _compute_checkdigit() |
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75
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# Preloaded methods go here. |
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77
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1; |
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__END__ |