class RDoc::Stats::Normal

def begin_adding # :nodoc:
  puts "Parsing sources..."
end

def done_adding # :nodoc:
  puts
end

def print_file(files_so_far, filename)
  progress_bar = sprintf("%3d%% [%2d/%2d]  ",
                         100 * (files_so_far + 1) / @total_files,
                         files_so_far + 1,
                         @total_files)
  if $stdout.tty?
    # Print a progress bar, but make sure it fits on a single line. Filename
    # will be truncated if necessary.
    terminal_width = (ENV['COLUMNS'] || 80).to_i
    max_filename_size = terminal_width - progress_bar.size
    if filename.size > max_filename_size
      # Turn "some_long_filename.rb" to "...ong_filename.rb"
      filename = filename[(filename.size - max_filename_size) .. -1]
      filename[0..2] = "..."
    end
    # Pad the line with whitespaces so that leftover output from the
    # previous line doesn't show up.
    line = "#{progress_bar}#{filename}"
    padding = terminal_width - line.size
    line << (" " * padding) if padding > 0
    $stdout.print("#{line}\r")
  else
    $stdout.puts "#{progress_bar} #{filename}"
  end
  $stdout.flush
end