class Ronn::Document

defined in the document.
the source file path but falls back on the name and section
for the given file extension. Uses the name and section from
Generate a file basename of the form ".

."

def basename(type=nil)
  type = nil if ['', 'roff'].include?(type.to_s)
  [path_name || @name, path_section || @section, type].
  compact.join('.')
end