ETHERTYPE_CABLETRON               = 0x7034
	ETHERTYPE_CHAOS                   = 0x804
	ETHERTYPE_COMDESIGN               = 0x806c
	ETHERTYPE_COMPUGRAPHIC            = 0x806d
	ETHERTYPE_COUNTERPOINT            = 0x8062
	ETHERTYPE_CRONUS                  = 0x8004
	ETHERTYPE_CRONUSVLN               = 0x8003
	ETHERTYPE_DCA                     = 0x1234
	ETHERTYPE_DDE                     = 0x807b

	{"%x", "a75\n", &uintVal, uint(0xa75)},
	{"%x", "A75\n", &uintVal, uint(0xa75)},
	{"%x", "A7_5\n", &uintVal, uint(0xa7)}, // only %v takes underscores
	{"%U", "U+1234\n", &intVal, int(0x1234)},
	{"%U", "U+4567\n", &uintVal, uint(0x4567)},

	{"%e", "2.3\n", &float64Val, 2.3},
	{"%E", "2.3e1\n", &float32Val, float32(2.3e1)},
	{"%f", "2.3e2\n", &float64Val, 2.3e2},
	{"%g", "2.3p2\n", &float64Val, 2.3 * 4},

off a boolean flag.

Flag parsing stops just before the first non-flag argument
("-" is a non-flag argument) or after the terminator "--".

Integer flags accept 1234, 0664, 0x1234 and may be negative.
Boolean flags may be:

	1, 0, t, f, T, F, true, false, TRUE, FALSE, True, False

Duration flags accept any input valid for time.ParseDuration.

	0x1280: 0x000c, 0x1281: 0x000c,
	0x12a2: 0x000c, 0x12a3: 0x000c,
	0x12a4: 0x000c, 0x12a5: 0x000c, 0x12a8: 0x000c, 0x12a9: 0x000c,
	0x12ab: 0x000c, 0x12ac: 0x000c, 0x12ad: 0x000c,
	// Block 0x4b, offset 0x12c0
	0x12e6: 0x000c, 0x12e8: 0x000c, 0x12e9: 0x000c,
	0x12ed: 0x000c, 0x12ef: 0x000c,
	0x12f0: 0x000c, 0x12f1: 0x000c,
	// Block 0x4c, offset 0x1300
	0x132c: 0x000c, 0x132d: 0x000c, 0x132e: 0x000c, 0x132f: 0x000c,

	0x1242: 0x000c,
	0x126b: 0x000c, 0x126c: 0x000c, 0x126d: 0x000c, 0x126e: 0x000c, 0x126f: 0x000c,
	0x1270: 0x000c, 0x1271: 0x000c, 0x1272: 0x000c, 0x1273: 0x000c,
	// Block 0x4a, offset 0x1280
	0x1280: 0x000c, 0x1281: 0x000c,
	0x12a2: 0x000c, 0x12a3: 0x000c,
	0x12a4: 0x000c, 0x12a5: 0x000c, 0x12a8: 0x000c, 0x12a9: 0x000c,
	0x12ab: 0x000c, 0x12ac: 0x000c, 0x12ad: 0x000c,
	// Block 0x4b, offset 0x12c0

	0x121e: 0xe00d, 0x121f: 0x0008, 0x1220: 0xe00d, 0x1221: 0x0008, 0x1222: 0xe00d, 0x1223: 0x0008,
	0x1224: 0xe00d, 0x1225: 0x0008, 0x1226: 0xe00d, 0x1227: 0x0008, 0x1228: 0xe00d, 0x1229: 0x0008,
	0x122a: 0x6e29, 0x122b: 0x1029, 0x122c: 0x11c1, 0x122d: 0x6e41, 0x122e: 0x1221, 0x122f: 0x0008,
	0x1230: 0x6e59, 0x1231: 0x6e71, 0x1232: 0x1239, 0x1233: 0x444d, 0x1234: 0xe00d, 0x1235: 0x0008,

    assertThat(
      mergeAdjacentRanges(
        listOf(
          Mapping(0x0232, 0x0232, TYPE_MAPPED, "a".encodeUtf8()),
          Mapping(0x0233, 0x0233, TYPE_VALID, ByteString.EMPTY),
          Mapping(0x0234, 0x0236, TYPE_VALID, ByteString.EMPTY),
          Mapping(0x0237, 0x0239, TYPE_VALID, ByteString.EMPTY),
          Mapping(0x023a, 0x023a, TYPE_MAPPED, "b".encodeUtf8()),
        ),
      ),
    ).containsExactly(

	0x121e: 0xe00d, 0x121f: 0x0008, 0x1220: 0xe00d, 0x1221: 0x0008, 0x1222: 0xe00d, 0x1223: 0x0008,
	0x1224: 0xe00d, 0x1225: 0x0008, 0x1226: 0xe00d, 0x1227: 0x0008, 0x1228: 0xe00d, 0x1229: 0x0008,
	0x122a: 0x6e29, 0x122b: 0x1029, 0x122c: 0x11c1, 0x122d: 0x6e41, 0x122e: 0x1221, 0x122f: 0x0040,
	0x1230: 0x6e59, 0x1231: 0x6e71, 0x1232: 0x1239, 0x1233: 0x444d, 0x1234: 0xe00d, 0x1235: 0x0008,

	0x121e: 0x67f5, 0x121f: 0x0008, 0x1220: 0x6815, 0x1221: 0x0008, 0x1222: 0x6835, 0x1223: 0x0008,
	0x1224: 0x0008, 0x1225: 0x6855, 0x1226: 0x6875, 0x1227: 0x0008, 0x1228: 0x0008, 0x1229: 0x0008,
	0x122a: 0x6895, 0x122b: 0x68b5, 0x122c: 0x68d5, 0x122d: 0x68f5, 0x122e: 0x6915, 0x122f: 0x6935,
	0x1230: 0x6955, 0x1231: 0x6975, 0x1232: 0x6995, 0x1233: 0x69b5, 0x1234: 0x69d5, 0x1235: 0x69f5,

	0x1259, 0x125b, 0x125d, 0x125f, 0x1263, 0x1267, 0x126b, 0x126f,
	0x1270, 0x1271, 0x1272, 0x1273, 0x1274, 0x1275, 0x1277, 0x1279,
	// Entry 440 - 47F
	0x127b, 0x127d, 0x127f, 0x1287, 0x128f, 0x129b, 0x12a7, 0x12b3,
	0x12bf, 0x12cb, 0x12d3, 0x12db, 0x12e7, 0x12f3, 0x12ff, 0x130b,
	0x130d, 0x130f, 0x1311, 0x1313, 0x1315, 0x1317, 0x1319, 0x131b,
	0x131d, 0x131f, 0x1321, 0x1323, 0x1325, 0x1327, 0x1329, 0x132b,