underscore.js like template class in ruby

simple_template.rb

class SimpleTemplate
  class Renderer < OpenStruct
    def render(template)
      template.result(binding)
    end
  end

  def initialize(html)
    @template = ERB.new(html)
  end

  def render(params)
    Renderer.new(params).render(@template)
  end

  class << self
    def template?(body)
      body[/<%.*%>/].present?
    end
  end
end