-#!/usr/bin/env python
-
+#!/usr/bin/env python3
from __future__ import print_function
import re
import os
+from pathlib import Path
+
+# 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 keysym guarded by #ifndef
+keysym_ifndef_pattern = re.compile(r"^#ifndef\s+(?P<prefix>\w*)XK_(?P<name>\w+)\s*$")
+
+# 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_name(m: re.Match[str]) -> str:
+ return m.group("prefix") + m.group("name")
+
+
+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')
-if not prefix:
- 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',
-]
+prefix = Path(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
+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 */
-''')
+"""
+)
+
+keysyms: set[str] = set()
for path in HEADERS:
- with open(path) as header:
+ pending_guarded_keysym: str | None = None
+ with path.open("rt", encoding="utf-8") as header:
for line in header:
- if '#ifdef' in line or '#ifndef' in line or '#endif' in line:
+ # Duplicate keysym name guard
+ if m := keysym_ifndef_pattern.match(line):
+ if pending_guarded_keysym:
+ raise ValueError(f"Nested #ifndef {pending_guarded_keysym}")
+ pending_guarded_keysym = make_keysym_name(m)
continue
- # Remove #define _OSF_Keysyms and such.
- if '#define _' in line:
+ # Ignore C macro #ifdef/#ifndef
+ elif line.startswith("#ifdef") or line.startswith("#ifndef"):
+ if pending_guarded_keysym:
+ raise ValueError(f"Nested C macro {pending_guarded_keysym}")
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:
+ # Ignore C macro #endif and check end of keysym name guard
+ elif line.startswith("#endif"):
+ if pending_guarded_keysym:
+ pending_guarded_keysym = None
continue
- line = re.sub(r'#define\s*(\w*)XK_', r'#define XKB_KEY_\1', line)
+ # Remove #define _OSF_Keysyms and such.
+ elif line.startswith("#define _"):
+ continue
+
+ # Keysym entry: proceed various tests
+ if line.startswith("#") and (m := keysym_entry_pattern.match(line)):
+ name = make_keysym_name(m)
+ # Check expected guarded keysym, if relevant
+ if pending_guarded_keysym and name != pending_guarded_keysym:
+ raise ValueError(f"{path}: Malformed keysym name guard: {line}")
+ # Check if name already defined
+ elif name in keysyms:
+ if pending_guarded_keysym:
+ # Ignore guarded keysym
+ continue
+ else:
+ raise ValueError(f"{path}: Unguarded redefinition: {line}")
+ else:
+ keysyms.add(name)
+
+ # 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')
+ print(line, end="")
+print("\n\n#endif")