y|Y|yes|Yes|YES|n|N|no|No|NO
|true|True|TRUE|false|False|FALSE
|on|On|ON|off|Off|OFF

##</code><code>##

-
  name: Bob Johnson
  active: true
  happy: false
-
  name: Bill Johnson
  active: true
  happy: true
-
  name: Frank Johnson
  active: false
  happy: false
-
  name: George Johnson
  active: false
  happy: true

##</code><code>##

#!/usr/bin/env perl          
use strict;                  
use warnings;                
use YAML::XS qw(LoadFile);                                
use Data::Dumper;            
                             
my $data = LoadFile('/tmp/test.yaml');
print Dumper($data);

##</code><code>##

$VAR1 = [
          {
            'name' => 'Bob Johnson',
            'active' => 1,
            'happy' => ''
          },
          {
            'happy' => ${\$VAR1->[0]{'active'}},
            'active' => ${\$VAR1->[0]{'active'}},
            'name' => 'Bill Johnson'
          },
          {
            'name' => 'Frank Johnson',
            'active' => ${\$VAR1->[0]{'happy'}},
            'happy' => ${\$VAR1->[0]{'happy'}}
          },
          {
            'active' => ${\$VAR1->[0]{'happy'}},
            'name' => 'George Johnson',
            'happy' => ${\$VAR1->[0]{'active'}}
          }
        ];

##</code><code>##

$VAR1 = [
          {
            'active' => 'true',
            'happy' => 'false',
            'name' => 'Bob Johnson'
          },
          {
            'name' => 'Bill Johnson',
            'happy' => 'true',
            'active' => 'true'
          },
          {
            'active' => 'false',
            'happy' => 'false',
            'name' => 'Frank Johnson'
          },
          {
            'name' => 'George Johnson',
            'happy' => 'true',
            'active' => 'false'
          }
        ];