# File lib/rbreadline.rb, line 7892 def rl_modifying(start, _end) if (start > _end) start,_end = _end,start end if (start != _end) temp = rl_copy_text(start, _end) rl_begin_undo_group() rl_add_undo(UNDO_DELETE, start, _end, temp) rl_add_undo(UNDO_INSERT, start, _end, nil) rl_end_undo_group() end 0 end