          # File lib/rake.rb, line 2121
    2121:     def display_tasks_and_comments
    2122:       displayable_tasks = tasks.select { |t|
    2123:         t.comment && t.name =~ options.show_task_pattern
    2124:       }
    2125:       if options.full_description
    2126:         displayable_tasks.each do |t|
    2127:           puts "#{name} #{t.name_with_args}"
    2128:           t.full_comment.split("\n").each do |line|
    2129:             puts "    #{line}"
    2130:           end
    2131:           puts
    2132:         end
    2133:       else
    2134:         width = displayable_tasks.collect { |t| t.name_with_args.length }.max || 10
    2135:         max_column = truncate_output? ? terminal_width - name.size - width - 7 : nil
    2136:         displayable_tasks.each do |t|
    2137:           printf "#{name} %-#{width}s  # %s\n",
    2138:             t.name_with_args, max_column ? truncate(t.comment, max_column) : t.comment
    2139:         end
    2140:       end
    2141:     end