require 'rubygems' require 'sinatra/base' require 'sinatra/static_assets' module Sinatra class XHTML < Sinatra::Base register Sinatra::StaticAssets enable :xhtml get '/image_tag' do content_type "text/plain" "#{image_tag("/images/foo.jpg")}" end get '/link_tag' do content_type "text/plain" "#{stylesheet_link_tag("/stylesheets/winter.css")}" end end end