encoding_index_singlebyte/
windows_1258.rs

1// AUTOGENERATED FROM index-windows-1258.txt, ORIGINAL COMMENT FOLLOWS:
2//
3// For details on index index-windows-1258.txt see the Encoding Standard
4// https://encoding.spec.whatwg.org/
5//
6// Identifier: 198bacedfcf24390e219240a7b776b6cec34cff070330b08a601a69c67f7eb24
7// Date: 2018-01-06
8
9#[allow(dead_code)] const X: u16 = 0xffff;
10
11const FORWARD_TABLE: &[u16] = &[
12    8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 138, 8249, 338, 141, 142, 143, 144,
13    8216, 8217, 8220, 8221, 8226, 8211, 8212, 732, 8482, 154, 8250, 339, 157, 158, 376, 160, 161,
14    162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180,
15    181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 258, 196, 197, 198, 199,
16    200, 201, 202, 203, 768, 205, 206, 207, 272, 209, 777, 211, 212, 416, 214, 215, 216, 217, 218,
17    219, 220, 431, 771, 223, 224, 225, 226, 259, 228, 229, 230, 231, 232, 233, 234, 235, 769, 237,
18    238, 239, 273, 241, 803, 243, 244, 417, 246, 247, 248, 249, 250, 251, 252, 432, 8363, 255,
19]; // 128 entries
20
21/// Returns the index code point for pointer `code` in this index.
22#[inline]
23pub fn forward(code: u8) -> u16 {
24    FORWARD_TABLE[(code - 0x80) as usize]
25}
26
27#[cfg(not(feature = "no-optimized-legacy-encoding"))]
28const BACKWARD_TABLE_LOWER: &[u8] = &[
29    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
30    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
31    204, 236, 0, 222, 0, 0, 0, 0, 0, 210, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
32    0, 0, 0, 0, 0, 0, 242, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
33    0, 0, 0, 0, 140, 156, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
34    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 159, 0, 0, 0, 0, 0, 0, 0, 195, 227, 0, 0, 0, 0, 0, 0, 0, 0,
35    0, 0, 0, 0, 208, 240, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
36    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 254, 128, 0, 0, 0, 0, 0, 0,
37    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, 213, 245, 0,
38    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 221, 253, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 136,
39    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,
40    0, 0, 0, 0, 0, 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,
41    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 150, 151, 0, 0, 0,
42    145, 146, 130, 0, 147, 148, 132, 0, 134, 135, 149, 0, 0, 0, 133, 0, 0, 0, 0, 0, 0, 0, 0, 0,
43    137, 0, 0, 0, 0, 0, 0, 0, 0, 139, 155, 0, 0, 0, 0, 0, 129, 0, 0, 0, 0, 0, 0, 0, 0, 138, 0, 0,
44    141, 142, 143, 144, 0, 0, 0, 0, 0, 0, 0, 0, 0, 154, 0, 0, 157, 158, 0, 160, 161, 162, 163, 164,
45    165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183,
46    184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 0, 196, 197, 198, 199, 200, 201, 202,
47    203, 0, 205, 206, 207, 0, 209, 0, 211, 212, 0, 214, 215, 216, 217, 218, 219, 220, 0, 0, 223,
48    224, 225, 226, 0, 228, 229, 230, 231, 232, 233, 234, 235, 0, 237, 238, 239, 0, 241, 0, 243,
49    244, 0, 246, 247, 248, 249, 250, 251, 252, 0, 0, 255,
50]; // 563 entries
51
52#[cfg(not(feature = "no-optimized-legacy-encoding"))]
53const BACKWARD_TABLE_UPPER: &[u16] = &[
54    0, 0, 435, 499, 172, 110, 239, 0, 0, 0, 0, 297, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
55    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
56    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
57    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
58    0, 0, 0, 0, 0, 372, 0, 193, 0, 327,
59]; // 133 entries
60
61/// Returns the index pointer for code point `code` in this index.
62#[inline]
63#[cfg(not(feature = "no-optimized-legacy-encoding"))]
64pub fn backward(code: u32) -> u8 {
65    let offset = (code >> 6) as usize;
66    let offset = if offset < 133 {BACKWARD_TABLE_UPPER[offset] as usize} else {0};
67    BACKWARD_TABLE_LOWER[offset + ((code & 63) as usize)]
68}
69
70/// Returns the index pointer for code point `code` in this index.
71#[cfg(feature = "no-optimized-legacy-encoding")]
72pub fn backward(code: u32) -> u8 {
73    if code > 8482 || ((0x10003u32 >> (code >> 9)) & 1) == 0 { return 0; }
74    let code = code as u16;
75    for i in 0..0x80 {
76        if FORWARD_TABLE[i as usize] == code { return 0x80 + i; }
77    }
78    0
79}
80
81#[cfg(test)]
82encoding_index_tests::single_byte_tests! {
83}
encoding_index_singlebyte/windows_1258.rs

encoding_index_singlebyte/
windows_1258.rs
