~mdw / profile / blame
| Commit | Line | Data |
|---|---|---|
| bff12eb1 MW |
1 | ### -*-python -*- |
| 2 | ||
| 3 | import IPython as IPY | |
| 4 | import prompt_toolkit as PTK | |
| 5 | ||
| 6 | def ding(): | |
| 7 | with open('/dev/tty', 'w') as f: f.write('\a') | |
| 8 | ||
| 9 | ## Key bindings. Alas, IPython's attempt at Emacs keybindings is abysmal. | |
| 10 | K = PTK.keys.Keys | |
| 11 | F = PTK.filters | |
| 12 | BUF = PTK.enums.DEFAULT_BUFFER | |
| 13 | ipy = IPY.get_ipython() | |
| 14 | try: pt = ipy.pt_cli | |
| 15 | except AttributeError: pass | |
| 16 | else: | |
| 17 | reg = pt.application.key_bindings_registry | |
| 18 | bind = PTK.key_binding.bindings.utils.create_handle_decorator(reg) | |
| 19 | ||
| 20 | def inhibit_history_search(buf, fn): | |
| 21 | searchp, searchtext = buf.enable_history_search, buf.history_search_text | |
| 22 | buf.enable_history_search = F.Never() | |
| 23 | try: | |
| 24 | fn() | |
| 25 | finally: | |
| 26 | buf.enable_history_search, buf.history_search_text = searchp, searchtext | |
| 27 | @bind(K.ControlP) | |
| 28 | def prev_line(ev): | |
| 29 | buf = ev.current_buffer | |
| 30 | if buf.document.cursor_position_row > 0: | |
| 31 | buf.cursor_up() | |
| 32 | elif not buf.selection_state: | |
| 33 | inhibit_history_search(buf, lambda: buf.history_backward()) | |
| 34 | @bind(K.ControlN) | |
| 35 | def next_line(ev): | |
| 36 | buf = ev.current_buffer | |
| 37 | if buf.document.cursor_position_row < buf.document.line_count - 1: | |
| 38 | buf.cursor_down() | |
| 39 | elif not buf.selection_state: | |
| 40 | inhibit_history_search(buf, lambda: buf.history_forward()) | |
| 41 | ||
| 42 | bind(K.Escape, u'p')(lambda ev: ev.current_buffer.history_backward()) | |
| 43 | bind(K.Escape, u'n')(lambda ev: ev.current_buffer.history_forward()) |