class Ronn::RoffFilter

def initialize(html, name, section, tagline, manual=nil, version=nil, date=nil)

Convert Ronn HTML to roff. 
def initialize(html, name, section, tagline, manual=nil, version=nil, date=nil)
  @buf = []
  title_heading name, section, tagline, manual, version, date
  doc = Hpricot(html)
  remove_extraneous_elements! doc
  normalize_whitespace! doc
  block_filter doc
  write "\n"
end