kc3-lang/libxkbcommon/scripts/makeheader

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• Hash : 3852106a
  Author :
  Date : 2021-02-17T09:06:57
  

  scripts: update makeheader script for the _EVDEVK keysym defines As of xorgproto commit 5dbb5b76597f [1], the 0x10081XXX keycode range is defined for direct evdev kernel keycode mapping. For example, KEY_MACRO1 (0x290) is mapped to 0x10081290. The format of the #define lines for these keys is stable to allow for parsing: #define XF86XK_FooBar _EVDEVK(0x123) /* optional comment */ Update our script so we detect these new lines. Our keysym generation is a two-step process: makeheader and then makekeys. Replacing the key with its full value in the makeheader script means we don't have to update makekeys to handle the _EVDEVK macro and our header file is fully resolved. [1] https://gitlab.freedesktop.org/xorg/proto/xorgproto/-/merge_requests/23 Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

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• scripts/makeheader

• #!/usr/bin/env python
  from __future__ import print_function
  import re
  import os
  
  # expected format:
  # #define XF86XK_FooBar _EVDEVK(0x123) /* some optional comment */
  evdev_pattern = re.compile(r'^#define\s+XF86XK_(?P<name>\w+)\s+_EVDEVK\((?P<value>0x[0-9A-Fa-f]+)\)')
  
  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. */
  
  #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
  
              # 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.
              match = re.match(evdev_pattern, line)
              if match:
                  value = 0x10081000 + int(match.group('value'), 16)
                  line = re.sub(r'_EVDEVK\(0x([0-9A-Fa-f]+)\)', '{:#x}'.format(value), line)
  
              line = re.sub(r'#define\s*(\w*)XK_', r'#define XKB_KEY_\1', line)
  
              print(line, end='')
  print('\n\n#endif')
  

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