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package Set::Tiny; |
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1190
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use 5.004; |
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2
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87
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4
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2
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use strict; |
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2
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1377
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5
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6
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require Exporter; |
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@Set::Tiny::ISA = qw(Exporter); |
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@Set::Tiny::EXPORT_OK = qw(set); |
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10
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$Set::Tiny::VERSION = '0.02'; |
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12
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sub new { |
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40
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40
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1
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768
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my $class = shift; |
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40
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41
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my %self; |
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87
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@self{@_} = (); |
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132
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return bless \%self, $class; |
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} |
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sub set { |
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3
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100
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3
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1
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704
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if ( ref( $_[ 0 ] ) ne '' ) { |
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1
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1
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return Set::Tiny->new( @{ $_[ 0 ] } ); |
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4
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22
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} |
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else { |
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2
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return Set::Tiny->new(@_); |
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} |
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} |
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28
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93
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93
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1
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1761
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sub as_string { "(" . join(" ", sort keys %{$_[0]}) . ")" } |
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93
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980
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29
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1
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550
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sub size { scalar keys %{$_[0]} } |
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265
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3
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100
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3
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1
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536
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sub element { exists $_[0]->{$_[1]} ? $_[1] : () } |
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3
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sub elements { keys %{$_[0]} } |
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36
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sub contains { |
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1
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707
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my $self = shift; |
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100
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92
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exists $self->{$_} or return for @_; |
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return 1; |
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} |
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sub clone { |
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1
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my $class = ref $_[0]; |
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return $class->new( keys %{$_[0]} ); |
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106
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45
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} |
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47
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sub clear { |
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2
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2
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1
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4
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%{$_[0]} = (); |
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2
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8
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49
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2
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5
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return $_[0]; |
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} |
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52
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sub insert { |
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1
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1
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1
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3
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my $self = shift; |
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1
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2
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@{$self}{@_} = (); |
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1
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4
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55
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1
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3
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return $self; |
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} |
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58
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sub remove { |
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23
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23
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1
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my $self = shift; |
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23
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24
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delete @{$self}{@_}; |
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43
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61
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23
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75
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return $self; |
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} |
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64
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sub invert { |
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3
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3
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1
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6
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my $self = shift; |
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3
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100
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27
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exists $self->{$_} ? delete $self->{$_} : ($self->{$_} = undef) for @_; |
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3
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9
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return $self; |
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} |
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70
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3
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3
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1
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1226
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sub is_null { ! %{$_[0]} } |
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3
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16
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71
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72
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15
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15
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1
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29
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sub is_subset { $_[1]->contains( keys %{$_[0]} ) } |
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15
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50
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73
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74
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4
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100
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4
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1
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15
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sub is_proper_subset { $_[0]->size < $_[1]->size && $_[0]->is_subset($_[1]) } |
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76
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4
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4
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1
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854
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sub is_superset { $_[1]->is_subset($_[0]) } |
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78
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4
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100
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4
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1
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15
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sub is_proper_superset { $_[0]->size > $_[1]->size && $_[1]->is_subset($_[0]) } |
79
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80
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3
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100
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3
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1
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12
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sub is_equal { $_[1]->is_subset($_[0]) && $_[0]->is_subset($_[1]) } |
81
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82
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7
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7
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1
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1103
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sub is_disjoint { ! $_[0]->intersection($_[1])->size } |
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84
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sub is_properly_intersecting { |
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4
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100
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100
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4
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1
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505
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! $_[0]->is_disjoint($_[1]) |
86
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&& $_[0]->difference($_[1])->size |
87
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&& $_[1]->difference($_[0])->size |
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} |
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90
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21
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21
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1
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44
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sub difference { $_[0]->clone->remove(keys %{$_[1]}) } |
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21
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60
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91
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92
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sub union { |
93
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1
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1
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1
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3
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my $class = ref $_[0]; |
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1
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2
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return $class->new( keys %{$_[0]}, keys %{$_[1]} ); |
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1
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5
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1
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6
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95
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} |
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97
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8
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8
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1
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24
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sub intersection { $_[0]->difference( $_[0]->clone->difference($_[1]) ) } |
98
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99
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2
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2
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1
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13
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sub symmetric_difference { $_[0]->clone->invert(keys %{$_[1]}) } |
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2
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10
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100
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101
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{ |
102
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*copy = \&clone; |
103
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*has = \&contains; |
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*member = \&element; |
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*members = \&elements; |
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*delete = \&remove; |
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*is_empty = \&is_null; |
108
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*unique = \&symmetric_difference; |
109
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} |
110
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111
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1; |
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113
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__END__ |