class Rocco

so we'll fall back on a webservice to highlight the code if it isn't available.
Pygments is not one of those things that's trivial for a ruby user to install,

def highlight_webservice(code)
  Net::HTTP.post_form(
    URI.parse('http://pygments.appspot.com/'),
    {'lang' => @options[:language], 'code' => code}
  ).body
end