class RDoc::Stats::Normal

def begin_adding # :nodoc:
  puts "Parsing sources..."
  @last_width = 0
end

def done_adding # :nodoc:
  puts
end

def print_file files_so_far, filename
  progress_bar = sprintf("%3d%% [%2d/%2d]  ",
                         100 * files_so_far / @num_files,
                         files_so_far,
                         @num_files)
  if $stdout.tty?
    # Print a progress bar, but make sure it fits on a single line. Filename
    # will be truncated if necessary.
    size = IO.respond_to?(:console_size) ? IO.console_size : IO.console.winsize
    terminal_width = size[1].to_i.nonzero? || 80
    max_filename_size = (terminal_width - progress_bar.size) - 1
    if filename.size > max_filename_size then
      # Turn "some_long_filename.rb" to "...ong_filename.rb"
      filename = filename[(filename.size - max_filename_size) .. -1]
      filename[0..2] = "..."
    end
    # Clean the line with whitespaces so that leftover output from the
    # previous line doesn't show up.
    $stdout.print("\r\e[K") if @last_width && @last_width > 0
    @last_width = progress_bar.size + filename.size
    term = "\r"
  else
    term = "\n"
  end
  $stdout.print(progress_bar, filename, term)
  $stdout.flush
end