arrays.rb

class MyItems
   # This will read in only 3 ints
   array :fixed_length_array, :initial_length => 3 do
     uint8
   end

   # This will read in each unit and pass it to the lambda until its value is 5
   array :variable_length_array, :read_until => lambda { element != 5 } do
     uint8
   end
end