1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
static FORWARD_TABLE: &'static [u16] = &[
8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 138, 8249, 140,
141, 142, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 732, 8482,
154, 8250, 156, 157, 158, 159, 160, 161, 162, 163, 8362, 165, 166, 167,
168, 169, 215, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182,
183, 184, 185, 247, 187, 188, 189, 190, 191, 1456, 1457, 1458, 1459, 1460,
1461, 1462, 1463, 1464, 1465, 65535, 1467, 1468, 1469, 1470, 1471, 1472,
1473, 1474, 1475, 1520, 1521, 1522, 1523, 1524, 65535, 65535, 65535, 65535,
65535, 65535, 65535, 1488, 1489, 1490, 1491, 1492, 1493, 1494, 1495, 1496,
1497, 1498, 1499, 1500, 1501, 1502, 1503, 1504, 1505, 1506, 1507, 1508,
1509, 1510, 1511, 1512, 1513, 1514, 65535, 65535, 8206, 8207, 65535,
];
#[inline]
pub fn forward(code: u8) -> u16 {
FORWARD_TABLE[(code - 0x80) as usize]
}
static BACKWARD_TABLE_LOWER: &'static [u8] = &[
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, 129, 0, 0, 0, 0, 0, 0, 0, 0, 138, 0, 140, 141, 142,
143, 144, 0, 0, 0, 0, 0, 0, 0, 0, 0, 154, 0, 156, 157, 158, 159, 160, 161,
162, 163, 0, 165, 166, 167, 168, 169, 0, 171, 172, 173, 174, 175, 176, 177,
178, 179, 180, 181, 182, 183, 184, 185, 0, 187, 188, 189, 190, 191, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 170, 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, 186, 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, 131, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 136, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 152, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 192, 193,
194, 195, 196, 197, 198, 199, 200, 201, 0, 203, 204, 205, 206, 207, 208,
209, 210, 211, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 224, 225, 226, 227, 228,
229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243,
244, 245, 246, 247, 248, 249, 250, 0, 0, 0, 0, 0, 212, 213, 214, 215, 216,
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,
253, 254, 0, 0, 0, 150, 151, 0, 0, 0, 145, 146, 130, 0, 147, 148, 132, 0,
134, 135, 149, 0, 0, 0, 133, 0, 0, 0, 0, 0, 0, 0, 0, 0, 137, 0, 0, 0, 0, 0,
0, 0, 0, 139, 155, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 164, 0,
128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 153, 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,
];
static BACKWARD_TABLE_UPPER: &'static [u16] = &[
0, 0, 0, 0, 32, 64, 96, 128, 0, 0, 0, 0, 160, 0, 0, 0, 0, 0, 0, 0, 0, 0,
192, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 224,
256, 288, 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, 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, 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, 320, 352, 0, 0, 0, 384, 0, 0, 0, 416,
];
#[inline]
pub fn backward(code: u32) -> u8 {
let offset = (code >> 5) as usize;
let offset = if offset < 266 {BACKWARD_TABLE_UPPER[offset] as usize} else {0};
BACKWARD_TABLE_LOWER[offset + ((code & 31) as usize)]
}
#[cfg(test)]
single_byte_tests!(
mod = windows_1255
);