paper.rb

class Paper
	def intialize(&block)
		yield self if block_given?
	end

	def set_variable
		return Proc.new do |kind, val|
			[kind, val].join(": ")
		end
	end

	def title(value)
		@title = set_variable.call "TITLE", value
	end

	def heading(value)
		@heading = set_variable.call "HEADING", value
	end

	def body(value)
		@body = set_variable.call "BODY", value
	end

	def display
		puts @title
		puts "----------------------"
		puts @heading
		puts "----------------------"
		puts @body
		puts "----------------------"
	end
end

paper = Paper.new do |p|
	p.title("My awesome paper")
	p.heading("This is my paper")
	p.body("The entire content of my paper goes here.")
end

paper.display