gistfile1.rb

  def parse_command(command_id, data)
    command = find_command(command_id)
    parsed = {name: command[:name]}.with_indifferent_access
    return parsed unless command[:bytes] # Return if no parsable data

    # Detect Expected Size
    expected_length = 0
    command[:bytes].each do |byte_range, value_id|
      value = data[byte_range]

      # Should have expected size
      return unless value.length == [*byte_range].size
      expected_length+=value.length

      # Detect values that are integers
      value = value.to_i if value.match(/^\d+$/)

      # See if the value is a key (e.g. error_id has error_ids)
      key = value_id.pluralize
      parsed[value_id] = value
      if command.has_key? key
        value_key = key.split('_')[0] # Key is error if error_code
        value_result = command[key][value]
        parsed[value_key] = value_result
      elsif value_id == "partition_id" and not [*1..8].include? value
        return # Partition is out of range
      elsif value_id == "zone_id" and not [*1..64].include? value
        return # Zone is out of range
      elsif value_id == "command_id" # Get command name
        @dsc_app.each do |app_cmd_name, app_cmd|
          parsed[:command] = app_cmd_name if app_cmd[:command] == value
        end
      elsif value_id == "dsc_date" # Parse DSC date to time object
        parsed[:time] = Time.strptime("%010d" % value, '%H%M%m%d%y')
      end

    end

    if expected_length == data.length
      parsed[:description] = command[:description] % parsed
      parsed
    end
  end