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#!/usr/bin/env python3
# ========================================================================== #
# #
# KVMD - The main Pi-KVM daemon. #
# #
# Copyright (C) 2018 Maxim Devaev <[email protected]> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
import sys
import textwrap
import dataclasses
from typing import Set
from typing import List
import Xlib.keysymdef.latin1
import Xlib.keysymdef.miscellany
import mako.template
# =====
@dataclasses.dataclass(frozen=True)
class _OtgKey:
code: int
is_modifier: bool
@dataclasses.dataclass(frozen=True)
class _X11Key:
name: str
code: int
shift: bool
@dataclasses.dataclass(frozen=True)
class _KeyMapping:
web_name: str
serial_code: int
arduino_name: str
otg_key: _OtgKey
at1_code: int
x11_keys: Set[_X11Key]
def _resolve_keysym(name: str) -> int:
code = getattr(Xlib.keysymdef.latin1, name, None)
if code is None:
code = getattr(Xlib.keysymdef.miscellany, name, None)
assert code is not None, name
return code
def _read_keymap_in(path: str) -> List[_KeyMapping]:
keymap: List[_KeyMapping] = []
with open(path) as keymap_file:
for line in keymap_file:
line = line.strip()
if len(line) > 0 and not line.startswith("#"):
parts = list(map(str.strip, line.split()))
if len(parts) >= 6:
otg_is_modifier = parts[3].startswith("^")
otg_code = int((parts[3][1:] if otg_is_modifier else parts[3]), 16)
x11_keys: Set[_X11Key] = set()
for x11_name in parts[5].split(","):
x11_shift = x11_name.startswith("^")
x11_name = (x11_name[1:] if x11_shift else x11_name)
x11_code = _resolve_keysym(x11_name)
x11_keys.add(_X11Key(x11_name, x11_code, x11_shift))
keymap.append(_KeyMapping(
web_name=parts[0],
serial_code=int(parts[1]),
arduino_name=parts[2],
otg_key=_OtgKey(otg_code, otg_is_modifier),
at1_code=int(parts[4], 16),
x11_keys=x11_keys,
))
return keymap
def _render_keymap(keymap: List[_KeyMapping], template_path: str, out_path: str) -> None:
with open(template_path) as template_file:
with open(out_path, "w") as out_file:
template = textwrap.dedent(template_file.read())
rendered = mako.template.Template(template).render(keymap=keymap)
out_file.write(rendered)
# =====
def main() -> None:
assert len(sys.argv) == 4, f"{sys.argv[0]} <keymap.in> <template> <out>"
keymap = _read_keymap_in(sys.argv[1])
_render_keymap(keymap, sys.argv[2], sys.argv[3])
# =====
if __name__ == "__main__":
main()
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