static const uint32_t to_ucs4[256] = {
  [0x01] = 0x0001,
  [0x02] = 0x0002,
  [0x03] = 0x0003,
  [0x04] = 0x0004,
  [0x05] = 0x0005,
  [0x06] = 0x0006,
  [0x07] = 0x0007,
  [0x08] = 0x0008,
  [0x09] = 0x0009,
  [0x0a] = 0x000A,
  [0x0b] = 0x000B,
  [0x0c] = 0x000C,
  [0x0d] = 0x000D,
  [0x0e] = 0x000E,
  [0x0f] = 0x000F,
  [0x10] = 0x0010,
  [0x11] = 0x0011,
  [0x12] = 0x0012,
  [0x13] = 0x0013,
  [0x14] = 0x0014,
  [0x15] = 0x0015,
  [0x16] = 0x0016,
  [0x17] = 0x0017,
  [0x18] = 0x0018,
  [0x19] = 0x0019,
  [0x1a] = 0x001A,
  [0x1b] = 0x001B,
  [0x1c] = 0x001C,
  [0x1d] = 0x001D,
  [0x1e] = 0x001E,
  [0x1f] = 0x001F,
  [0x20] = 0x2800,
  [0x21] = 0x282E,
  [0x22] = 0x2810,
  [0x23] = 0x283C,
  [0x24] = 0x282B,
  [0x25] = 0x2829,
  [0x26] = 0x282F,
  [0x27] = 0x2804,
  [0x28] = 0x2837,
  [0x29] = 0x283E,
  [0x2a] = 0x2821,
  [0x2b] = 0x282C,
  [0x2c] = 0x2820,
  [0x2d] = 0x2824,
  [0x2e] = 0x2828,
  [0x2f] = 0x280C,
  [0x30] = 0x2834,
  [0x31] = 0x2802,
  [0x32] = 0x2806,
  [0x33] = 0x2812,
  [0x34] = 0x2832,
  [0x35] = 0x2822,
  [0x36] = 0x2816,
  [0x37] = 0x2836,
  [0x38] = 0x2826,
  [0x39] = 0x2814,
  [0x3a] = 0x2831,
  [0x3b] = 0x2830,
  [0x3c] = 0x2823,
  [0x3d] = 0x283F,
  [0x3e] = 0x281C,
  [0x3f] = 0x2839,
  [0x40] = 0x2808,
  [0x41] = 0x2801,
  [0x42] = 0x2803,
  [0x43] = 0x2809,
  [0x44] = 0x2819,
  [0x45] = 0x2811,
  [0x46] = 0x280B,
  [0x47] = 0x281B,
  [0x48] = 0x2813,
  [0x49] = 0x280A,
  [0x4a] = 0x281A,
  [0x4b] = 0x2805,
  [0x4c] = 0x2807,
  [0x4d] = 0x280D,
  [0x4e] = 0x281D,
  [0x4f] = 0x2815,
  [0x50] = 0x280F,
  [0x51] = 0x281F,
  [0x52] = 0x2817,
  [0x53] = 0x280E,
  [0x54] = 0x281E,
  [0x55] = 0x2825,
  [0x56] = 0x2827,
  [0x57] = 0x283A,
  [0x58] = 0x282D,
  [0x59] = 0x283D,
  [0x5a] = 0x2835,
  [0x5b] = 0x282A,
  [0x5c] = 0x2833,
  [0x5d] = 0x283B,
  [0x5e] = 0x2818,
  [0x5f] = 0x2838,
};
static const struct gap from_idx[] = {
  { .start = 0x0000, .end = 0x001f, .idx =     0 },
  { .start = 0x2800, .end = 0x283f, .idx = -10208 },
  { .start = 0xffff, .end = 0xffff, .idx =     0 }
};
static const char from_ucs4[] = {

  '\x00', '\x01', '\x02', '\x03', '\x04', '\x05', '\x06', '\x07',
  '\x08', '\x09', '\x0a', '\x0b', '\x0c', '\x0d', '\x0e', '\x0f',
  '\x10', '\x11', '\x12', '\x13', '\x14', '\x15', '\x16', '\x17',
  '\x18', '\x19', '\x1a', '\x1b', '\x1c', '\x1d', '\x1e', '\x1f',
  '\x20', '\x41', '\x31', '\x42', '\x27', '\x4b', '\x32', '\x4c',
  '\x40', '\x43', '\x49', '\x46', '\x2f', '\x4d', '\x53', '\x50',
  '\x22', '\x45', '\x33', '\x48', '\x39', '\x4f', '\x36', '\x52',
  '\x5e', '\x44', '\x4a', '\x47', '\x3e', '\x4e', '\x54', '\x51',
  '\x2c', '\x2a', '\x35', '\x3c', '\x2d', '\x55', '\x38', '\x56',
  '\x2e', '\x25', '\x5b', '\x24', '\x2b', '\x58', '\x21', '\x26',
  '\x3b', '\x3a', '\x34', '\x5c', '\x30', '\x5a', '\x37', '\x28',
  '\x5f', '\x3f', '\x57', '\x5d', '\x23', '\x59', '\x29', '\x3d',
};