class Middleman::Renderers::RedcarpetTemplate

def covert_options_to_aliases!
  ALIASES.each do |aka, actual|
    options[actual] = options.delete(aka) if options.has_key? aka
  end
end

def generate_renderer
  return options.delete(:renderer) if options.has_key?(:renderer)
  covert_options_to_aliases!
  # Pick a renderer
  renderer = MiddlemanRedcarpetHTML
  # Support SmartyPants
  if options.delete(:smartypants)
    renderer = Class.new(renderer) do
      include ::Redcarpet::Render::SmartyPants
    end
  end
  # Renderer Options
  possible_render_opts = [:filter_html, :no_images, :no_links, :no_styles, :safe_links_only, :with_toc_data, :hard_wrap, :xhtml, :prettify, :link_attributes]
  render_options = possible_render_opts.inject({}) do |sum, opt|
    sum[opt] = options.delete(opt) if options.has_key?(opt)
    sum
  end
  renderer.new(render_options)
end