Implementation
static const Map<int, int> code128B = <int, int>{
0x20: 0x0,
0x21: 0x1,
0x22: 0x2,
0x23: 0x3,
0x24: 0x4,
0x25: 0x5,
0x26: 0x6,
0x27: 0x7,
0x28: 0x8,
0x29: 0x9,
0x2a: 0xa,
0x2b: 0xb,
0x2c: 0xc,
0x2d: 0xd,
0x2e: 0xe,
0x2f: 0xf,
0x30: 0x10,
0x31: 0x11,
0x32: 0x12,
0x33: 0x13,
0x34: 0x14,
0x35: 0x15,
0x36: 0x16,
0x37: 0x17,
0x38: 0x18,
0x39: 0x19,
0x3a: 0x1a,
0x3b: 0x1b,
0x3c: 0x1c,
0x3d: 0x1d,
0x3e: 0x1e,
0x3f: 0x1f,
0x40: 0x20,
0x41: 0x21,
0x42: 0x22,
0x43: 0x23,
0x44: 0x24,
0x45: 0x25,
0x46: 0x26,
0x47: 0x27,
0x48: 0x28,
0x49: 0x29,
0x4a: 0x2a,
0x4b: 0x2b,
0x4c: 0x2c,
0x4d: 0x2d,
0x4e: 0x2e,
0x4f: 0x2f,
0x50: 0x30,
0x51: 0x31,
0x52: 0x32,
0x53: 0x33,
0x54: 0x34,
0x55: 0x35,
0x56: 0x36,
0x57: 0x37,
0x58: 0x38,
0x59: 0x39,
0x5a: 0x3a,
0x5b: 0x3b,
0x5c: 0x3c,
0x5d: 0x3d,
0x5e: 0x3e,
0x5f: 0x3f,
0x60: 0x40,
0x61: 0x41,
0x62: 0x42,
0x63: 0x43,
0x64: 0x44,
0x65: 0x45,
0x66: 0x46,
0x67: 0x47,
0x68: 0x48,
0x69: 0x49,
0x6a: 0x4a,
0x6b: 0x4b,
0x6c: 0x4c,
0x6d: 0x4d,
0x6e: 0x4e,
0x6f: 0x4f,
0x70: 0x50,
0x71: 0x51,
0x72: 0x52,
0x73: 0x53,
0x74: 0x54,
0x75: 0x55,
0x76: 0x56,
0x77: 0x57,
0x78: 0x58,
0x79: 0x59,
0x7a: 0x5a,
0x7b: 0x5b,
0x7c: 0x5c,
0x7d: 0x5d,
0x7e: 0x5e,
0x7f: 0x5f,
code128FNC3: 0x60,
code128FNC2: 0x61,
code128ShiftA: 0x62,
code128CodeC: 0x63,
code128FNC4: 0x64,
code128CodeA: 0x65,
code128FNC1: 0x66,
};