harfrust 0.5.2

A complete HarfBuzz shaping algorithm port to Rust.
Documentation 
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/* == Start of generated table == */
/*
 * The following table is generated by running:
 *
 *   ./gen-arabic-table.py --rust ArabicShaping.txt UnicodeData.txt Blocks.txt
 *
 * on files with these headers:
 *
 * # ArabicShaping-17.0.0.txt
 * # Date: 2025-08-14
 * # Blocks-17.0.0.txt
 * # Date: 2025-08-01
 * UnicodeData.txt does not have a header.
 */

#![allow(unused_parens)]
#![allow(clippy::unnecessary_cast, clippy::unreadable_literal, clippy::double_parens)]

use crate::hb::unicode::Codepoint;

use super::ot_shaper_arabic::hb_arabic_joining_type_t::{self, D, GroupAlaph, GroupDalathRish, L, R, T, U, X};

pub(crate) static _hb_arabic_joining_u8: [u8; 737]=
[
    0, 16,  2,  0,  0,  0,  3,  0,  4,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  5,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0, 96,135,  9,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 10,  0,  0,  0,  0,  0,
    0,  0,  0,  8, 16, 24, 32, 40, 48,  0, 56,  0, 64, 72, 80,  0,
    0,  0,  0, 88, 96,104,  0,  0,  0,  0,  0,112,120,  0,  0,  0,
    0,  0,  0,  0,128,  0,  0,  0,  0,  0,  0,  0,  0,  0,136,  0,
    0,144,  0,  0,  0,  0,  0,152,  0,  0,  0,  0,  0,  0,160,168,
  176,184,192,  0,  0,200,208,  0,  0,  0,  0,  0,  0,  0,  0,216,
  224,  0,  0,  0,  0,  0,  0,  0,  0,  8,  9,  0,  0, 10, 11, 12,
    1,  1, 13,  0,  0,  0, 14, 15,  1,  1,  2,  2,  4,  1,  1,  1,
    1, 16, 17, 18,  3,  0, 19,  0, 20,  0, 21, 22, 23,  1, 24,  0,
    0,  0, 25,  1, 26,  1, 27, 28,  4,  0, 29,  1,  1,  1, 30,  0,
   31, 32,  5, 33, 34, 35, 36,  2,  2, 37, 38,  6,  0,  1, 39, 40,
    5,  1,  7,  0,  0, 41,  0,  0,  0, 42, 43,  0,  0,  1,  1,  1,
    1,  1,  1,  1,  1,  1,  1,  1,  7, 44,  1,  1,  1,  1, 45,  0,
    0,  0, 46,  0,  0,  0, 47,  0,  0,  0,  0,  0,  0, 48,  6,  0,
    0,  1,  1,  1,  1,  1,  1, 49,  0, 50, 51, 52, 53, 54, 55,  0,
    0, 56, 57, 58,  0,  0, 59,  0,  0, 60,  1,  1,  1, 61,  0,  0,
    0, 62,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 63,
    1, 64,  0, 65,  0,  0,  0, 66,  1, 67,  0,  0,  0,  0,  0, 68,
   69, 70, 71,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    3,  0,  3,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  1,
    1, 72, 73,  0,  0,  0,  0,  0,  0,119,119,119,119, 51, 51, 51,
   51, 34, 34, 34, 34,119,119,  7,119, 34, 51, 51, 51, 35, 51, 51,
   51,  0,119,119,119,115,119,119,119,  0,  0,  0,119,112,  7,119,
  119,  3, 34, 34, 35, 35, 51, 51, 35, 34, 50, 51, 51, 50,115,119,
  119,119,119,119, 51, 39, 34, 32, 34, 50, 35, 34, 34, 34, 34, 35,
   35, 51, 34, 39,119,119,119,119, 34,119, 51,115, 55,119,119,119,
  103,116, 51, 83, 37, 34, 51, 51, 50, 50, 53, 50, 83,119,119, 39,
   51, 35, 34, 51, 51, 51, 35, 50, 51, 35, 35, 50, 51,119, 51, 51,
   51, 51,115,119,119,119,115,119,119, 50, 51, 51, 34, 51, 51, 50,
   34,114,119,119,119,  3, 51, 51, 32, 35,114,119,119, 34, 50, 51,
    3, 48, 51, 51, 50, 51, 34,  2, 50, 35, 50, 51, 51,119,112,119,
  119,119,119,119, 48,119,115,119,112,  0,  0, 96, 54,115,115,119,
  119,119,119, 48,119,119,119,119,  7,119,119,119,  0, 51,  1,119,
  119, 51, 51, 35, 32, 32,  2, 16, 34, 34, 50, 51, 19, 51, 51, 35,
   51, 35,  0,114,119,119, 55, 51, 35, 35, 35, 34, 51, 35, 51, 50,
   34, 35,119,119,119, 39, 34, 50,  3, 49, 51, 51, 51, 51, 50,119,
  119,119, 50,115, 51, 51, 35, 51, 51, 51, 51,  3,119, 55, 51,114,
  119, 51, 51, 34, 51, 51,119,119,119,  3, 51, 34,  2, 35, 50, 35,
   51, 48, 34,  3,  0, 32, 19,119,119, 51, 51,119,119,119,103,119,
  119,
];

#[inline(always)]
fn _hb_arabic_joining_b4 (a: &[u8], i: usize) -> u8
{
  (a[i>>1]>>((i&1)<<2))&15
}
#[inline]
pub(crate) fn _hb_arabic_joining_joining_type_u8 (u: usize) -> u8
{
  /* packtab: [2^4,2^3,2^3,2^3] */
  if u<125260usize { (_hb_arabic_joining_b4(&_hb_arabic_joining_u8[441usize..],(((_hb_arabic_joining_u8[209usize+(((_hb_arabic_joining_u8[123usize+((((_hb_arabic_joining_b4(&_hb_arabic_joining_u8,(((((((u)>>3))>>3))>>3) as usize) as usize)) as usize)<<3) as usize+((((((u)>>3))>>3))&7) as usize) as usize]) as usize) as usize+((((u)>>3))&7) as usize) as usize]) as usize)<<3) as usize+((u)&7) as usize)) as u8 } else { 7 }
}

#[inline]
pub(crate) fn joining_type (u: Codepoint) -> hb_arabic_joining_type_t
{
  match _hb_arabic_joining_joining_type_u8 (u as usize) {
    0 => U,
    1 => L,
    2 => R,
    3 => D,
    4 => GroupAlaph,
    5 => GroupDalathRish,
    6 => T,
    7 => X,
    _ => unreachable! (),
  }
}


/* == End of generated table == */