332 lines
13 KiB
Python
332 lines
13 KiB
Python
|
"""
|
||
|
|
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
|
||
|
|
# --
|
||
|
|
# 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,
|
||
|
|
# --
|
||
|
|
# 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.
|
||
|
|
"\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.
|
||
|
|
"\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()
|