module Cucumber

def self.initializer(*attributes)
  Module.new do
    attr_reader(*attributes)
    private(*attributes)
    define_method(:initialize) do |*arguments|
      if attributes.size != arguments.size
        raise ArgumentError, "wrong number of arguments (#{arguments.size} for #{attributes.size})"
      end
      attributes.zip(arguments) do |attribute, argument|
        instance_variable_set("@#{attribute}", argument)
      end
    end
  end
end

def file_mode(m, encoding="UTF-8")
  "#{m}:#{encoding}"
end