# File lib/rbreadline.rb, line 1440
  def rl_emacs_editing_mode(count, key)
    @rl_editing_mode = @emacs_mode
    _rl_set_insert_mode(RL_IM_INSERT, 1) # emacs mode default is insert mode
    @_rl_keymap = @emacs_standard_keymap
    0
  end