windows_874.rs

// AUTOGENERATED FROM index-windows-874.txt, ORIGINAL COMMENT FOLLOWS:
//
// Any copyright is dedicated to the Public Domain.
// https://creativecommons.org/publicdomain/zero/1.0/
//
// For details on index index-windows-874.txt see the Encoding Standard
// https://encoding.spec.whatwg.org/
//
// Identifier: b416583ce125e38474381b31b401a98b19ecf2e57e0998e78a1e18b14894905d
// Date: 2016-01-20

#[allow(dead_code)] const X: u16 = 0xffff;

const FORWARD_TABLE: &'static [u16] = &[
    8364, 129, 130, 131, 132, 8230, 134, 135, 136, 137, 138, 139, 140, 141,
    142, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 152, 153, 154,
    155, 156, 157, 158, 159, 160, 3585, 3586, 3587, 3588, 3589, 3590, 3591,
    3592, 3593, 3594, 3595, 3596, 3597, 3598, 3599, 3600, 3601, 3602, 3603,
    3604, 3605, 3606, 3607, 3608, 3609, 3610, 3611, 3612, 3613, 3614, 3615,
    3616, 3617, 3618, 3619, 3620, 3621, 3622, 3623, 3624, 3625, 3626, 3627,
    3628, 3629, 3630, 3631, 3632, 3633, 3634, 3635, 3636, 3637, 3638, 3639,
    3640, 3641, 3642, X, X, X, X, 3647, 3648, 3649, 3650, 3651, 3652, 3653,
    3654, 3655, 3656, 3657, 3658, 3659, 3660, 3661, 3662, 3663, 3664, 3665,
    3666, 3667, 3668, 3669, 3670, 3671, 3672, 3673, 3674, 3675, X, X, X, X,
]; // 128 entries

/// Returns the index code point for pointer `code` in this index.
#[inline]
pub fn forward(code: u8) -> u16 {
    FORWARD_TABLE[(code - 0x80) as usize]
}

#[cfg(not(feature = "no-optimized-legacy-encoding"))]
const 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, 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, 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, 251, 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, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 129, 130, 131, 132, 0, 134, 135, 136, 137, 138, 139, 140, 141, 142,
    143, 144, 0, 0, 0, 0, 0, 0, 0, 152, 153, 154, 155, 156, 157, 158, 159, 160,
    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, 150, 151, 0, 0, 0, 145, 146, 0, 0, 147, 148, 0, 0, 0, 0,
    149, 0, 0, 0, 133, 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, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171,
    172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186,
    187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201,
    202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216,
    217, 218, 0, 0, 0, 0, 223,
]; // 327 entries

#[cfg(not(feature = "no-optimized-legacy-encoding"))]
const BACKWARD_TABLE_UPPER: &'static [u16] = &[
    0, 0, 155, 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, 263, 64, 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, 200, 0, 92,
]; // 131 entries

/// Returns the index pointer for code point `code` in this index.
#[inline]
#[cfg(not(feature = "no-optimized-legacy-encoding"))]
pub fn backward(code: u32) -> u8 {
    let offset = (code >> 6) as usize;
    let offset = if offset < 131 {BACKWARD_TABLE_UPPER[offset] as usize} else {0};
    BACKWARD_TABLE_LOWER[offset + ((code & 63) as usize)]
}

/// Returns the index pointer for code point `code` in this index.
#[cfg(feature = "no-optimized-legacy-encoding")]
pub fn backward(code: u32) -> u8 {
    if code > 8364 || ((0x10081u32 >> (code >> 9)) & 1) == 0 { return 0; }
    let code = code as u16;
    for i in 0..0x80 {
        if FORWARD_TABLE[i as usize] == code { return 0x80 + i; }
    }
    0
}

#[cfg(test)]
single_byte_tests! {
}