convert.py

import sys
import re

# key code -> USB HID scancode
usb_map = [
      0,   0,   0,   0,  30,  48,  46,  32,  18,  33,  34,  35,  23,  36,  37,  38,
     50,  49,  24,  25,  16,  19,  31,  20,  22,  47,  17,  45,  21,  44,   2,   3,
      4,   5,   6,   7,   8,   9,  10,  11,  28,   1,  14,  15,  57,  12,  13,  26,
     27,  43,  43,  39,  40,  41,  51,  52,  53,  58,  59,  60,  61,  62,  63,  64,
     65,  66,  67,  68,  87,  88,  99,  70, 119, 110, 102, 104, 111, 107, 109, 106,
    105, 108, 103,  69,  98,  55,  74,  78,  96,  79,  80,  81,  75,  76,  77,  71,
     72,  73,  82,  83,  86, 127, 116, 117, 183, 184, 185, 186, 187, 188, 189, 190,
    191, 192, 193, 194, 134, 138, 130, 132, 128, 129, 131, 137, 133, 135, 136, 113,
    115, 114,   0,   0,   0, 121,   0,  89,  93, 124,  92,  94,  95,   0,   0,   0,
    122, 123,  90,  91,  85,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
      0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
     29,  42,  56, 125,  97,  54, 100, 126, 164, 166, 165, 163, 161, 115, 114, 113,
    150, 158, 159, 128, 136, 177, 178, 176, 142, 152, 173, 140
]

if sys.stdin.isatty():
    print('Usage: loadkeys -m <keymap> | %s' % sys.argv[0], file=sys.stderr)

source = sys.stdin.read()
maps = {name: [int(val, 16) for val in vals.split(',') if val.strip()] for name, vals in re.findall(
    r'unsigned short ((?:plain|shift)_map)\[NR_KEYS] = \{([^}]+)};',
    source,
    re.MULTILINE
)}

KT_LATIN = 0
KT_LETTER = 11
KT_SPEC = 2
K_ENTER = (KT_SPEC << 8) | 1

chr_to_usb = {}

for map_name, map_vals in maps.items():
    for n, key in enumerate(map_vals):
        try:
            scan = usb_map.index(n)
        except ValueError:
            continue
        key &= 0xfff
        typ = key >> 8

        if key == K_ENTER:
            char = '\n'
        elif typ in (KT_LATIN, KT_LETTER):
            char = chr(key & 0xff)
            if char == '\x1b':
                continue
        else:
            continue

        if map_name == 'shift_map':
            scan |= 0x80

        if char not in chr_to_usb:
            chr_to_usb[char] = scan

for k in sorted(chr_to_usb):
    shift = ''
    if chr_to_usb[k] & 0x80:
        shift = ' | SHIFT'
    print('keyMap[%#.2x] = %#.2x%s; /* %r */' % (
        ord(k), chr_to_usb[k] & ~0x80, shift, k))