class Asciidoctor::Timings

def print_report to = $stdout, subject = nil
  to.puts %(Input file: #{subject}) if subject
  to.puts %(  Time to read and parse source: #{'%05.5f' % read_parse.to_f})
  to.puts %(  Time to convert document: #{'%05.5f' % convert.to_f})
  to.puts %(  Total time (read, parse and convert): #{'%05.5f' % read_parse_convert.to_f})
end