class Array
  # Formats an array into a string suitable for a CAP message.
  #
  # @return [String]
  # @example
  #   [ "one", "two words", "three" ].to_s_for_cap # => "one \"two words\" three"
  # @see String#unpack_cap_list
  def to_s_for_cap
    self.map{ |element| element.to_s.for_cap_list }.join( ' ' )
  end
end