if !defined?(ActionView)
  raise "All of this only makes sense within rails"
end

require "erb"
require "rdiscount"

class ActionView::MdownHandler < ActionView::TemplateHandler
  def render(template, local_assigns)
    txt = ERB.new(template.source).result(@view.send(:binding))
    RDiscount.new(txt).to_html
  end
end

ActionView::Template.register_template_handler :mdown, ActionView::MdownHandler