1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
|
"""
Mappings from VT100 (ANSI) escape sequences to the corresponding prompt_toolkit
keys.
We are not using the terminfo/termcap databases to detect the ANSI escape
sequences for the input. Instead, we recognize 99% of the most common
sequences. This works well, because in practice, every modern terminal is
mostly Xterm compatible.
Some useful docs:
- Mintty: https://github.com/mintty/mintty/blob/master/wiki/Keycodes.md
"""
from typing import Dict, Tuple, Union
from ..keys import Keys
__all__ = [
"ANSI_SEQUENCES",
"REVERSE_ANSI_SEQUENCES",
]
# Mapping of vt100 escape codes to Keys.
ANSI_SEQUENCES: Dict[str, Union[Keys, Tuple[Keys, ...]]] = {
# Control keys.
"\x00": Keys.ControlAt, # Control-At (Also for Ctrl-Space)
"\x01": Keys.ControlA, # Control-A (home)
"\x02": Keys.ControlB, # Control-B (emacs cursor left)
"\x03": Keys.ControlC, # Control-C (interrupt)
"\x04": Keys.ControlD, # Control-D (exit)
"\x05": Keys.ControlE, # Control-E (end)
"\x06": Keys.ControlF, # Control-F (cursor forward)
"\x07": Keys.ControlG, # Control-G
"\x08": Keys.ControlH, # Control-H (8) (Identical to '\b')
"\x09": Keys.ControlI, # Control-I (9) (Identical to '\t')
"\x0a": Keys.ControlJ, # Control-J (10) (Identical to '\n')
"\x0b": Keys.ControlK, # Control-K (delete until end of line; vertical tab)
"\x0c": Keys.ControlL, # Control-L (clear; form feed)
"\x0d": Keys.ControlM, # Control-M (13) (Identical to '\r')
"\x0e": Keys.ControlN, # Control-N (14) (history forward)
"\x0f": Keys.ControlO, # Control-O (15)
"\x10": Keys.ControlP, # Control-P (16) (history back)
"\x11": Keys.ControlQ, # Control-Q
"\x12": Keys.ControlR, # Control-R (18) (reverse search)
"\x13": Keys.ControlS, # Control-S (19) (forward search)
"\x14": Keys.ControlT, # Control-T
"\x15": Keys.ControlU, # Control-U
"\x16": Keys.ControlV, # Control-V
"\x17": Keys.ControlW, # Control-W
"\x18": Keys.ControlX, # Control-X
"\x19": Keys.ControlY, # Control-Y (25)
"\x1a": Keys.ControlZ, # Control-Z
"\x1b": Keys.Escape, # Also Control-[
"\x9b": Keys.ShiftEscape,
"\x1c": Keys.ControlBackslash, # Both Control-\ (also Ctrl-| )
"\x1d": Keys.ControlSquareClose, # Control-]
"\x1e": Keys.ControlCircumflex, # Control-^
"\x1f": Keys.ControlUnderscore, # Control-underscore (Also for Ctrl-hyphen.)
# ASCII Delete (0x7f)
# Vt220 (and Linux terminal) send this when pressing backspace. We map this
# to ControlH, because that will make it easier to create key bindings that
# work everywhere, with the trade-off that it's no longer possible to
# handle backspace and control-h individually for the few terminals that
# support it. (Most terminals send ControlH when backspace is pressed.)
# See: http://www.ibb.net/~anne/keyboard.html
"\x7f": Keys.ControlH,
# --
# Various
"\x1b[1~": Keys.Home, # tmux
"\x1b[2~": Keys.Insert,
"\x1b[3~": Keys.Delete,
"\x1b[4~": Keys.End, # tmux
"\x1b[5~": Keys.PageUp,
"\x1b[6~": Keys.PageDown,
"\x1b[7~": Keys.Home, # xrvt
"\x1b[8~": Keys.End, # xrvt
"\x1b[Z": Keys.BackTab, # shift + tab
"\x1b\x09": Keys.BackTab, # Linux console
"\x1b[~": Keys.BackTab, # Windows console
# --
# Function keys.
"\x1bOP": Keys.F1,
"\x1bOQ": Keys.F2,
"\x1bOR": Keys.F3,
"\x1bOS": Keys.F4,
"\x1b[[A": Keys.F1, # Linux console.
"\x1b[[B": Keys.F2, # Linux console.
"\x1b[[C": Keys.F3, # Linux console.
"\x1b[[D": Keys.F4, # Linux console.
"\x1b[[E": Keys.F5, # Linux console.
"\x1b[11~": Keys.F1, # rxvt-unicode
"\x1b[12~": Keys.F2, # rxvt-unicode
"\x1b[13~": Keys.F3, # rxvt-unicode
"\x1b[14~": Keys.F4, # rxvt-unicode
"\x1b[15~": Keys.F5,
"\x1b[17~": Keys.F6,
"\x1b[18~": Keys.F7,
"\x1b[19~": Keys.F8,
"\x1b[20~": Keys.F9,
"\x1b[21~": Keys.F10,
"\x1b[23~": Keys.F11,
"\x1b[24~": Keys.F12,
"\x1b[25~": Keys.F13,
"\x1b[26~": Keys.F14,
"\x1b[28~": Keys.F15,
"\x1b[29~": Keys.F16,
"\x1b[31~": Keys.F17,
"\x1b[32~": Keys.F18,
"\x1b[33~": Keys.F19,
"\x1b[34~": Keys.F20,
# Xterm
"\x1b[1;2P": Keys.F13,
"\x1b[1;2Q": Keys.F14,
# '\x1b[1;2R': Keys.F15, # Conflicts with CPR response.
"\x1b[1;2S": Keys.F16,
"\x1b[15;2~": Keys.F17,
"\x1b[17;2~": Keys.F18,
"\x1b[18;2~": Keys.F19,
"\x1b[19;2~": Keys.F20,
"\x1b[20;2~": Keys.F21,
"\x1b[21;2~": Keys.F22,
"\x1b[23;2~": Keys.F23,
"\x1b[24;2~": Keys.F24,
# --
# CSI 27 disambiguated modified "other" keys (xterm)
# Ref: https://invisible-island.net/xterm/modified-keys.html
# These are currently unsupported, so just re-map some common ones to the
# unmodified versions
"\x1b[27;2;13~": Keys.ControlM, # Shift + Enter
"\x1b[27;5;13~": Keys.ControlM, # Ctrl + Enter
"\x1b[27;6;13~": Keys.ControlM, # Ctrl + Shift + Enter
# --
# Control + function keys.
"\x1b[1;5P": Keys.ControlF1,
"\x1b[1;5Q": Keys.ControlF2,
# "\x1b[1;5R": Keys.ControlF3, # Conflicts with CPR response.
"\x1b[1;5S": Keys.ControlF4,
"\x1b[15;5~": Keys.ControlF5,
"\x1b[17;5~": Keys.ControlF6,
"\x1b[18;5~": Keys.ControlF7,
"\x1b[19;5~": Keys.ControlF8,
"\x1b[20;5~": Keys.ControlF9,
"\x1b[21;5~": Keys.ControlF10,
"\x1b[23;5~": Keys.ControlF11,
"\x1b[24;5~": Keys.ControlF12,
"\x1b[1;6P": Keys.ControlF13,
"\x1b[1;6Q": Keys.ControlF14,
# "\x1b[1;6R": Keys.ControlF15, # Conflicts with CPR response.
"\x1b[1;6S": Keys.ControlF16,
"\x1b[15;6~": Keys.ControlF17,
"\x1b[17;6~": Keys.ControlF18,
"\x1b[18;6~": Keys.ControlF19,
"\x1b[19;6~": Keys.ControlF20,
"\x1b[20;6~": Keys.ControlF21,
"\x1b[21;6~": Keys.ControlF22,
"\x1b[23;6~": Keys.ControlF23,
"\x1b[24;6~": Keys.ControlF24,
# --
# Tmux (Win32 subsystem) sends the following scroll events.
"\x1b[62~": Keys.ScrollUp,
"\x1b[63~": Keys.ScrollDown,
"\x1b[200~": Keys.BracketedPaste, # Start of bracketed paste.
# --
# Sequences generated by numpad 5. Not sure what it means. (It doesn't
# appear in 'infocmp'. Just ignore.
"\x1b[E": Keys.Ignore, # Xterm.
"\x1b[G": Keys.Ignore, # Linux console.
# --
# Meta/control/escape + pageup/pagedown/insert/delete.
"\x1b[3;2~": Keys.ShiftDelete, # xterm, gnome-terminal.
"\x1b[5;2~": Keys.ShiftPageUp,
"\x1b[6;2~": Keys.ShiftPageDown,
"\x1b[2;3~": (Keys.Escape, Keys.Insert),
"\x1b[3;3~": (Keys.Escape, Keys.Delete),
"\x1b[5;3~": (Keys.Escape, Keys.PageUp),
"\x1b[6;3~": (Keys.Escape, Keys.PageDown),
"\x1b[2;4~": (Keys.Escape, Keys.ShiftInsert),
"\x1b[3;4~": (Keys.Escape, Keys.ShiftDelete),
"\x1b[5;4~": (Keys.Escape, Keys.ShiftPageUp),
"\x1b[6;4~": (Keys.Escape, Keys.ShiftPageDown),
"\x1b[3;5~": Keys.ControlDelete, # xterm, gnome-terminal.
"\x1b[5;5~": Keys.ControlPageUp,
"\x1b[6;5~": Keys.ControlPageDown,
"\x1b[3;6~": Keys.ControlShiftDelete,
"\x1b[5;6~": Keys.ControlShiftPageUp,
"\x1b[6;6~": Keys.ControlShiftPageDown,
"\x1b[2;7~": (Keys.Escape, Keys.ControlInsert),
"\x1b[5;7~": (Keys.Escape, Keys.ControlPageDown),
"\x1b[6;7~": (Keys.Escape, Keys.ControlPageDown),
"\x1b[2;8~": (Keys.Escape, Keys.ControlShiftInsert),
"\x1b[5;8~": (Keys.Escape, Keys.ControlShiftPageDown),
"\x1b[6;8~": (Keys.Escape, Keys.ControlShiftPageDown),
# --
# Arrows.
# (Normal cursor mode).
"\x1b[A": Keys.Up,
"\x1b[B": Keys.Down,
"\x1b[C": Keys.Right,
"\x1b[D": Keys.Left,
"\x1b[H": Keys.Home,
"\x1b[F": Keys.End,
# Tmux sends following keystrokes when control+arrow is pressed, but for
# Emacs ansi-term sends the same sequences for normal arrow keys. Consider
# it a normal arrow press, because that's more important.
# (Application cursor mode).
"\x1bOA": Keys.Up,
"\x1bOB": Keys.Down,
"\x1bOC": Keys.Right,
"\x1bOD": Keys.Left,
"\x1bOF": Keys.End,
"\x1bOH": Keys.Home,
# Shift + arrows.
"\x1b[1;2A": Keys.ShiftUp,
"\x1b[1;2B": Keys.ShiftDown,
"\x1b[1;2C": Keys.ShiftRight,
"\x1b[1;2D": Keys.ShiftLeft,
"\x1b[1;2F": Keys.ShiftEnd,
"\x1b[1;2H": Keys.ShiftHome,
# Meta + arrow keys. Several terminals handle this differently.
# The following sequences are for xterm and gnome-terminal.
# (Iterm sends ESC followed by the normal arrow_up/down/left/right
# sequences, and the OSX Terminal sends ESCb and ESCf for "alt
# arrow_left" and "alt arrow_right." We don't handle these
# explicitly, in here, because would could not distinguish between
# pressing ESC (to go to Vi navigation mode), followed by just the
# 'b' or 'f' key. These combinations are handled in
# the input processor.)
"\x1b[1;3A": (Keys.Escape, Keys.Up),
"\x1b[1;3B": (Keys.Escape, Keys.Down),
"\x1b[1;3C": (Keys.Escape, Keys.Right),
"\x1b[1;3D": (Keys.Escape, Keys.Left),
"\x1b[1;3F": (Keys.Escape, Keys.End),
"\x1b[1;3H": (Keys.Escape, Keys.Home),
# Alt+shift+number.
"\x1b[1;4A": (Keys.Escape, Keys.ShiftDown),
"\x1b[1;4B": (Keys.Escape, Keys.ShiftUp),
"\x1b[1;4C": (Keys.Escape, Keys.ShiftRight),
"\x1b[1;4D": (Keys.Escape, Keys.ShiftLeft),
"\x1b[1;4F": (Keys.Escape, Keys.ShiftEnd),
"\x1b[1;4H": (Keys.Escape, Keys.ShiftHome),
# Control + arrows.
"\x1b[1;5A": Keys.ControlUp, # Cursor Mode
"\x1b[1;5B": Keys.ControlDown, # Cursor Mode
"\x1b[1;5C": Keys.ControlRight, # Cursor Mode
"\x1b[1;5D": Keys.ControlLeft, # Cursor Mode
"\x1b[1;5F": Keys.ControlEnd,
"\x1b[1;5H": Keys.ControlHome,
# Tmux sends following keystrokes when control+arrow is pressed, but for
# Emacs ansi-term sends the same sequences for normal arrow keys. Consider
# it a normal arrow press, because that's more important.
"\x1b[5A": Keys.ControlUp,
"\x1b[5B": Keys.ControlDown,
"\x1b[5C": Keys.ControlRight,
"\x1b[5D": Keys.ControlLeft,
"\x1bOc": Keys.ControlRight, # rxvt
"\x1bOd": Keys.ControlLeft, # rxvt
# Control + shift + arrows.
"\x1b[1;6A": Keys.ControlShiftDown,
"\x1b[1;6B": Keys.ControlShiftUp,
"\x1b[1;6C": Keys.ControlShiftRight,
"\x1b[1;6D": Keys.ControlShiftLeft,
"\x1b[1;6F": Keys.ControlShiftEnd,
"\x1b[1;6H": Keys.ControlShiftHome,
# Control + Meta + arrows.
"\x1b[1;7A": (Keys.Escape, Keys.ControlDown),
"\x1b[1;7B": (Keys.Escape, Keys.ControlUp),
"\x1b[1;7C": (Keys.Escape, Keys.ControlRight),
"\x1b[1;7D": (Keys.Escape, Keys.ControlLeft),
"\x1b[1;7F": (Keys.Escape, Keys.ControlEnd),
"\x1b[1;7H": (Keys.Escape, Keys.ControlHome),
# Meta + Shift + arrows.
"\x1b[1;8A": (Keys.Escape, Keys.ControlShiftDown),
"\x1b[1;8B": (Keys.Escape, Keys.ControlShiftUp),
"\x1b[1;8C": (Keys.Escape, Keys.ControlShiftRight),
"\x1b[1;8D": (Keys.Escape, Keys.ControlShiftLeft),
"\x1b[1;8F": (Keys.Escape, Keys.ControlShiftEnd),
"\x1b[1;8H": (Keys.Escape, Keys.ControlShiftHome),
# Meta + arrow on (some?) Macs when using iTerm defaults (see issue #483).
"\x1b[1;9A": (Keys.Escape, Keys.Up),
"\x1b[1;9B": (Keys.Escape, Keys.Down),
"\x1b[1;9C": (Keys.Escape, Keys.Right),
"\x1b[1;9D": (Keys.Escape, Keys.Left),
# --
# Control/shift/meta + number in mintty.
# (c-2 will actually send c-@ and c-6 will send c-^.)
"\x1b[1;5p": Keys.Control0,
"\x1b[1;5q": Keys.Control1,
"\x1b[1;5r": Keys.Control2,
"\x1b[1;5s": Keys.Control3,
"\x1b[1;5t": Keys.Control4,
"\x1b[1;5u": Keys.Control5,
"\x1b[1;5v": Keys.Control6,
"\x1b[1;5w": Keys.Control7,
"\x1b[1;5x": Keys.Control8,
"\x1b[1;5y": Keys.Control9,
"\x1b[1;6p": Keys.ControlShift0,
"\x1b[1;6q": Keys.ControlShift1,
"\x1b[1;6r": Keys.ControlShift2,
"\x1b[1;6s": Keys.ControlShift3,
"\x1b[1;6t": Keys.ControlShift4,
"\x1b[1;6u": Keys.ControlShift5,
"\x1b[1;6v": Keys.ControlShift6,
"\x1b[1;6w": Keys.ControlShift7,
"\x1b[1;6x": Keys.ControlShift8,
"\x1b[1;6y": Keys.ControlShift9,
"\x1b[1;7p": (Keys.Escape, Keys.Control0),
"\x1b[1;7q": (Keys.Escape, Keys.Control1),
"\x1b[1;7r": (Keys.Escape, Keys.Control2),
"\x1b[1;7s": (Keys.Escape, Keys.Control3),
"\x1b[1;7t": (Keys.Escape, Keys.Control4),
"\x1b[1;7u": (Keys.Escape, Keys.Control5),
"\x1b[1;7v": (Keys.Escape, Keys.Control6),
"\x1b[1;7w": (Keys.Escape, Keys.Control7),
"\x1b[1;7x": (Keys.Escape, Keys.Control8),
"\x1b[1;7y": (Keys.Escape, Keys.Control9),
"\x1b[1;8p": (Keys.Escape, Keys.ControlShift0),
"\x1b[1;8q": (Keys.Escape, Keys.ControlShift1),
"\x1b[1;8r": (Keys.Escape, Keys.ControlShift2),
"\x1b[1;8s": (Keys.Escape, Keys.ControlShift3),
"\x1b[1;8t": (Keys.Escape, Keys.ControlShift4),
"\x1b[1;8u": (Keys.Escape, Keys.ControlShift5),
"\x1b[1;8v": (Keys.Escape, Keys.ControlShift6),
"\x1b[1;8w": (Keys.Escape, Keys.ControlShift7),
"\x1b[1;8x": (Keys.Escape, Keys.ControlShift8),
"\x1b[1;8y": (Keys.Escape, Keys.ControlShift9),
}
def _get_reverse_ansi_sequences() -> Dict[Keys, str]:
"""
Create a dictionary that maps prompt_toolkit keys back to the VT100 escape
sequences.
"""
result: Dict[Keys, str] = {}
for sequence, key in ANSI_SEQUENCES.items():
if not isinstance(key, tuple):
if key not in result:
result[key] = sequence
return result
REVERSE_ANSI_SEQUENCES = _get_reverse_ansi_sequences()
|
