class Rouge::Formatters::HTML

def stream(tokens, &b)
  yield "<pre class=#{@css_class.inspect}>"
  tokens.each do |tok, val|
    # TODO: properly html-encode val
    val = CGI.escape_html(val)
    case tok.shortname
    when ''
      yield val
    when nil
      raise "unknown token: #{tok.inspect}"
    else
      yield '<span class='
      yield tok.shortname.inspect
      yield '>'
      yield val
      yield '</span>'
    end
  end
  yield '</pre>'
end