>> Crack::JSON.parse(structure = {"one" => [{"two" => {"three" => "four", "value
" => "4130-02"}}]}.to_json)
=> {"one"=>[{"two"=>{"three"=>"four", "value"=>"4130-02"}}]}

>> Crack::JSON.parse(structure = {"one" => [{"two" => {"three" => "four", "value
" => "4130-02-"}}]}.to_json)
=> {"one"=>[{"two"=>{"three"=>"four", "value"=>"4130-02-"}}]}

>> Crack::JSON.parse(structure = {"one" => [{"two" => {"three" => "four", "value
" => "4130-02-0"}}]}.to_json)
=> {"one"=>[{"two"=>{"three"=>"four", "value"=>"4130-02-0"}}]}

>> Crack::JSON.parse(structure = {"one" => [{"two" => {"three" => "four", "value
" => "4130-02-00"}}]}.to_json)
Crack::ParseError: Invalid JSON string
        from E:/projects/dot-media/giddi/trunk/vendor/gems/crack-0.1.4/lib/crack
/json.rb:14:in `parse'
        from (irb):26