libxkbcommon/scripts/makeheader

96 lines
3.1 KiB
Python
Executable File

#!/usr/bin/env python
from __future__ import print_function
import re
import os
# Expected format:
# #define XF86XK_FooBar 0x1234 /* some optional comment */
# or:
# #define XF86XK_FooBar _EVDEVK(0x123) /* some optional comment */
# We also need to match commented evdev entries:
# /* Use: XF86XK_FooBar _EVDEVK(0x123) some optional comment */
keysym_entry_pattern = re.compile(
r"""^
(?P<define>\#define|/\*\s+Use:)\s+
(?P<prefix>\w*)XK_(?P<name>\w+)(?P<spacing>\s+)
(?P<evdev>_EVDEVK\()?(?P<value>0x[0-9A-Fa-f]+)(?(evdev)\))
""",
re.VERBOSE,
)
# Match remaining XK_ references in the comments, e.g we will replace:
# XF86XK_CamelCaseKernelName _EVDEVK(kernel value)
# #define XKB_KEY_SunCompose 0x0000FF20 /* Same as XK_Multi_key */
# with:
# XKB_KEY_XF86CamelCaseKernelName _EVDEVK(kernel value)
# #define XKB_KEY_SunCompose 0x0000FF20 /* Same as XKB_KEY_Multi_key */
xorgproto_keysym_prefix_pattern = re.compile(r"\b(?P<prefix>\w*)XK_(?!KOREAN\b)")
def make_keysym_entry(m: re.Match[str]) -> str:
"""
Perform the substitutions
"""
if m.group("evdev"):
if m.group("define").startswith("#"):
# Replace the xorgproto _EVDEVK macro with the actual value:
# 0x10081000 is the base, the evdev hex code is added to that.
# We replace to make parsing of the keys later easier.
value = 0x10081000 + int(m.group("value"), 16)
value_str = f"{value:#x} "
else:
value_str = f"""_EVDEVK({m.group('value')})"""
else:
value_str = m.group("value")
define = m.group("define")
prefix = m.group("prefix") or ""
name = m.group("name")
spacing = m.group("spacing")
return f"""{define} XKB_KEY_{prefix}{name}{spacing}{value_str}"""
prefix = os.environ.get("X11_HEADERS_PREFIX", "/usr")
HEADERS = [
prefix + "/include/X11/keysymdef.h",
prefix + "/include/X11/XF86keysym.h",
prefix + "/include/X11/Sunkeysym.h",
prefix + "/include/X11/DECkeysym.h",
prefix + "/include/X11/HPkeysym.h",
]
print(
"""#ifndef _XKBCOMMON_KEYSYMS_H
#define _XKBCOMMON_KEYSYMS_H
/* This file is autogenerated; please do not commit directly. */
/**
* @file
* Key symbols (keysyms) definitions.
*/
#define XKB_KEY_NoSymbol 0x000000 /* Special KeySym */
"""
)
for path in HEADERS:
with open(path) as header:
for line in header:
if "#ifdef" in line or "#ifndef" in line or "#endif" in line:
continue
# Remove #define _OSF_Keysyms and such.
if "#define _" in line:
continue
# Handle a duplicate definition in HPkeysyms.h which kicks in if
# it's not already defined.
if "XK_Ydiaeresis" in line and "0x100000ee" in line:
continue
# Perform _EVDEV and XK_ substitutions
line = keysym_entry_pattern.sub(make_keysym_entry, line)
line = xorgproto_keysym_prefix_pattern.sub(r"XKB_KEY_\1", line)
print(line, end="")
print("\n\n#endif")