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examples/sudoku/SudokuFormat.pm  view on Meta::CPAN

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package SudokuFormat;
 
use strict;
use warnings;
use Carp qw(croak);
use List::Util qw(first);
use Scalar::Util qw(weaken);
 
sub new {
    my ($class, $type_or_format, $input) = @_;
    my $self = {};
     
    if ($input && !ref($input)) {
       $self->{template} = $input;
    }
 
    if (ref($type_or_format) eq 'SudokuType') {

examples/sudoku/SudokuFormat.pm  view on Meta::CPAN

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sub compact {
    my ($class, $type) = @_;
 
    my $line = '.' x $type->n() . "\n";
    my $result = '';
    for (my $y = 0; $y < $type->n(); ++$y) {
        $result .= $line;
    }
     
    my $self = { type => $type, template => $result, labels => choose_labels($result) };
    weaken($self->{type});
 
    return bless $self, $class;
}
 
sub oneline {
    my ($class, $type) = @_;
 
    my $result = '.' x $type->size() . "\n";
    my $self = { type => $type, template => $result, labels => choose_labels($result) };
    weaken($self->{type});
 
    return bless $self, $class;
}
 
sub with_labels {
    my ($self, $str) = @_;
    my @labels = choose_labels_n($str, scalar split //, $self->{type}->n());
     
    my %new_self = %{$self};
    @new_self{qw(labels)} = @labels;