interpolater.rb

class	Interpolater

	attr_accessor :data, :template

	def initialize(template, data)
		@template = template
		@data = data

		replace_bracketed_words
	end

	def replace_bracketed_words
		data.map do |pair| 
			template.gsub!(("{" + pair.first.to_s + "}"), pair.last)
		end
	end

end