# File lib/map/params.rb, line 2
  def param_for(*args, &block)
    options = Map.options_for!(args)

    prefix = options[:prefix] || 'map'

    src_key = args.flatten.map{|arg| Map.alphanumeric_key_for(arg)}

    dst_key = src_key.map{|k| k.is_a?(Numeric) ? 0 : k}

    src = self
    dst = Map.new

    value =
      if options.has_key?(:value)
        options[:value]
      else
        src.get(src_key).to_s
      end

    dst.set(dst_key, value)

    Param.param_for(dst, prefix)
  end