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harfbuzz/src/hb-ot-shape-complex-arabic.cc

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/*
* Copyright (C) 2010 Google, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* Google Author(s): Behdad Esfahbod
*/
#include "hb-ot-shape-complex-private.hh"
HB_BEGIN_DECLS
/*
* Bits used in the joining tables
*/
enum {
JOINING_TYPE_U = 0,
JOINING_TYPE_R = 1,
JOINING_TYPE_D = 2,
JOINING_TYPE_C = JOINING_TYPE_D,
JOINING_GROUP_ALAPH = 3,
JOINING_GROUP_DALATH_RISH = 4,
NUM_STATE_MACHINE_COLS = 5,
/* We deliberately don't have a JOINING_TYPE_L since that's unused in Unicode. */
JOINING_TYPE_T = 6,
JOINING_TYPE_X = 7, /* means: use general-category to choose between U or T. */
};
/*
* Joining types:
*/
/*
* Main joining-type table, covering U+0600..U+07FF.
* Includes Arabic, Syriac, and N'ko.
*/
static const uint8_t arabic_syriac_nko_joining_types[0x0800 - 0x0600 + 1] =
{
/*
* The following table is generated by running:
*
* ./gen-arabic-joining-table.py < ArabicShaping.txt
*
* on the ArabicShaping.txt file with the header:
*
* # ArabicShaping-6.0.0.txt
* # Date: 2010-04-30, 13:47:00 PDT [KW]
*/
/* == Start of generated table == */
JOINING_TYPE_U, /* 0600; ARABIC NUMBER SIGN; U; No_Joining_Group */
JOINING_TYPE_U, /* 0601; ARABIC SIGN SANAH; U; No_Joining_Group */
JOINING_TYPE_U, /* 0602; ARABIC FOOTNOTE MARKER; U; No_Joining_Group */
JOINING_TYPE_U, /* 0603; ARABIC SIGN SAFHA; U; No_Joining_Group */
JOINING_TYPE_X, /* 0604 */
JOINING_TYPE_X, /* 0605 */
JOINING_TYPE_X, /* 0606 */
JOINING_TYPE_X, /* 0607 */
JOINING_TYPE_U, /* 0608; ARABIC RAY; U; No_Joining_Group */
JOINING_TYPE_X, /* 0609 */
JOINING_TYPE_X, /* 060A */
JOINING_TYPE_U, /* 060B; AFGHANI SIGN; U; No_Joining_Group */
JOINING_TYPE_X, /* 060C */
JOINING_TYPE_X, /* 060D */
JOINING_TYPE_X, /* 060E */
JOINING_TYPE_X, /* 060F */
JOINING_TYPE_X, /* 0610 */
JOINING_TYPE_X, /* 0611 */
JOINING_TYPE_X, /* 0612 */
JOINING_TYPE_X, /* 0613 */
JOINING_TYPE_X, /* 0614 */
JOINING_TYPE_X, /* 0615 */
JOINING_TYPE_X, /* 0616 */
JOINING_TYPE_X, /* 0617 */
JOINING_TYPE_X, /* 0618 */
JOINING_TYPE_X, /* 0619 */
JOINING_TYPE_X, /* 061A */
JOINING_TYPE_X, /* 061B */
JOINING_TYPE_X, /* 061C */
JOINING_TYPE_X, /* 061D */
JOINING_TYPE_X, /* 061E */
JOINING_TYPE_X, /* 061F */
JOINING_TYPE_D, /* 0620; YEH WITH RING; D; YEH */
JOINING_TYPE_U, /* 0621; HAMZA; U; No_Joining_Group */
JOINING_TYPE_R, /* 0622; MADDA ON ALEF; R; ALEF */
JOINING_TYPE_R, /* 0623; HAMZA ON ALEF; R; ALEF */
JOINING_TYPE_R, /* 0624; HAMZA ON WAW; R; WAW */
JOINING_TYPE_R, /* 0625; HAMZA UNDER ALEF; R; ALEF */
JOINING_TYPE_D, /* 0626; HAMZA ON YEH; D; YEH */
JOINING_TYPE_R, /* 0627; ALEF; R; ALEF */
JOINING_TYPE_D, /* 0628; BEH; D; BEH */
JOINING_TYPE_R, /* 0629; TEH MARBUTA; R; TEH MARBUTA */
JOINING_TYPE_D, /* 062A; TEH; D; BEH */
JOINING_TYPE_D, /* 062B; THEH; D; BEH */
JOINING_TYPE_D, /* 062C; JEEM; D; HAH */
JOINING_TYPE_D, /* 062D; HAH; D; HAH */
JOINING_TYPE_D, /* 062E; KHAH; D; HAH */
JOINING_TYPE_R, /* 062F; DAL; R; DAL */
JOINING_TYPE_R, /* 0630; THAL; R; DAL */
JOINING_TYPE_R, /* 0631; REH; R; REH */
JOINING_TYPE_R, /* 0632; ZAIN; R; REH */
JOINING_TYPE_D, /* 0633; SEEN; D; SEEN */
JOINING_TYPE_D, /* 0634; SHEEN; D; SEEN */
JOINING_TYPE_D, /* 0635; SAD; D; SAD */
JOINING_TYPE_D, /* 0636; DAD; D; SAD */
JOINING_TYPE_D, /* 0637; TAH; D; TAH */
JOINING_TYPE_D, /* 0638; ZAH; D; TAH */
JOINING_TYPE_D, /* 0639; AIN; D; AIN */
JOINING_TYPE_D, /* 063A; GHAIN; D; AIN */
JOINING_TYPE_D, /* 063B; KEHEH WITH 2 DOTS ABOVE; D; GAF */
JOINING_TYPE_D, /* 063C; KEHEH WITH 3 DOTS BELOW; D; GAF */
JOINING_TYPE_D, /* 063D; FARSI YEH WITH INVERTED V; D; FARSI YEH */
JOINING_TYPE_D, /* 063E; FARSI YEH WITH 2 DOTS ABOVE; D; FARSI YEH */
JOINING_TYPE_D, /* 063F; FARSI YEH WITH 3 DOTS ABOVE; D; FARSI YEH */
JOINING_TYPE_C, /* 0640; TATWEEL; C; No_Joining_Group */
JOINING_TYPE_D, /* 0641; FEH; D; FEH */
JOINING_TYPE_D, /* 0642; QAF; D; QAF */
JOINING_TYPE_D, /* 0643; KAF; D; KAF */
JOINING_TYPE_D, /* 0644; LAM; D; LAM */
JOINING_TYPE_D, /* 0645; MEEM; D; MEEM */
JOINING_TYPE_D, /* 0646; NOON; D; NOON */
JOINING_TYPE_D, /* 0647; HEH; D; HEH */
JOINING_TYPE_R, /* 0648; WAW; R; WAW */
JOINING_TYPE_D, /* 0649; ALEF MAKSURA; D; YEH */
JOINING_TYPE_D, /* 064A; YEH; D; YEH */
JOINING_TYPE_X, /* 064B */
JOINING_TYPE_X, /* 064C */
JOINING_TYPE_X, /* 064D */
JOINING_TYPE_X, /* 064E */
JOINING_TYPE_X, /* 064F */
JOINING_TYPE_X, /* 0650 */
JOINING_TYPE_X, /* 0651 */
JOINING_TYPE_X, /* 0652 */
JOINING_TYPE_X, /* 0653 */
JOINING_TYPE_X, /* 0654 */
JOINING_TYPE_X, /* 0655 */
JOINING_TYPE_X, /* 0656 */
JOINING_TYPE_X, /* 0657 */
JOINING_TYPE_X, /* 0658 */
JOINING_TYPE_X, /* 0659 */
JOINING_TYPE_X, /* 065A */
JOINING_TYPE_X, /* 065B */
JOINING_TYPE_X, /* 065C */
JOINING_TYPE_X, /* 065D */
JOINING_TYPE_X, /* 065E */
JOINING_TYPE_X, /* 065F */
JOINING_TYPE_X, /* 0660 */
JOINING_TYPE_X, /* 0661 */
JOINING_TYPE_X, /* 0662 */
JOINING_TYPE_X, /* 0663 */
JOINING_TYPE_X, /* 0664 */
JOINING_TYPE_X, /* 0665 */
JOINING_TYPE_X, /* 0666 */
JOINING_TYPE_X, /* 0667 */
JOINING_TYPE_X, /* 0668 */
JOINING_TYPE_X, /* 0669 */
JOINING_TYPE_X, /* 066A */
JOINING_TYPE_X, /* 066B */
JOINING_TYPE_X, /* 066C */
JOINING_TYPE_X, /* 066D */
JOINING_TYPE_D, /* 066E; DOTLESS BEH; D; BEH */
JOINING_TYPE_D, /* 066F; DOTLESS QAF; D; QAF */
JOINING_TYPE_X, /* 0670 */
JOINING_TYPE_R, /* 0671; HAMZAT WASL ON ALEF; R; ALEF */
JOINING_TYPE_R, /* 0672; WAVY HAMZA ON ALEF; R; ALEF */
JOINING_TYPE_R, /* 0673; WAVY HAMZA UNDER ALEF; R; ALEF */
JOINING_TYPE_U, /* 0674; HIGH HAMZA; U; No_Joining_Group */
JOINING_TYPE_R, /* 0675; HIGH HAMZA ALEF; R; ALEF */
JOINING_TYPE_R, /* 0676; HIGH HAMZA WAW; R; WAW */
JOINING_TYPE_R, /* 0677; HIGH HAMZA WAW WITH DAMMA; R; WAW */
JOINING_TYPE_D, /* 0678; HIGH HAMZA YEH; D; YEH */
JOINING_TYPE_D, /* 0679; TEH WITH SMALL TAH; D; BEH */
JOINING_TYPE_D, /* 067A; TEH WITH 2 DOTS VERTICAL ABOVE; D; BEH */
JOINING_TYPE_D, /* 067B; BEH WITH 2 DOTS VERTICAL BELOW; D; BEH */
JOINING_TYPE_D, /* 067C; TEH WITH RING; D; BEH */
JOINING_TYPE_D, /* 067D; TEH WITH 3 DOTS ABOVE DOWNWARD; D; BEH */
JOINING_TYPE_D, /* 067E; TEH WITH 3 DOTS BELOW; D; BEH */
JOINING_TYPE_D, /* 067F; TEH WITH 4 DOTS ABOVE; D; BEH */
JOINING_TYPE_D, /* 0680; BEH WITH 4 DOTS BELOW; D; BEH */
JOINING_TYPE_D, /* 0681; HAMZA ON HAH; D; HAH */
JOINING_TYPE_D, /* 0682; HAH WITH 2 DOTS VERTICAL ABOVE; D; HAH */
JOINING_TYPE_D, /* 0683; HAH WITH MIDDLE 2 DOTS; D; HAH */
JOINING_TYPE_D, /* 0684; HAH WITH MIDDLE 2 DOTS VERTICAL; D; HAH */
JOINING_TYPE_D, /* 0685; HAH WITH 3 DOTS ABOVE; D; HAH */
JOINING_TYPE_D, /* 0686; HAH WITH MIDDLE 3 DOTS DOWNWARD; D; HAH */
JOINING_TYPE_D, /* 0687; HAH WITH MIDDLE 4 DOTS; D; HAH */
JOINING_TYPE_R, /* 0688; DAL WITH SMALL TAH; R; DAL */
JOINING_TYPE_R, /* 0689; DAL WITH RING; R; DAL */
JOINING_TYPE_R, /* 068A; DAL WITH DOT BELOW; R; DAL */
JOINING_TYPE_R, /* 068B; DAL WITH DOT BELOW AND SMALL TAH; R; DAL */
JOINING_TYPE_R, /* 068C; DAL WITH 2 DOTS ABOVE; R; DAL */
JOINING_TYPE_R, /* 068D; DAL WITH 2 DOTS BELOW; R; DAL */
JOINING_TYPE_R, /* 068E; DAL WITH 3 DOTS ABOVE; R; DAL */
JOINING_TYPE_R, /* 068F; DAL WITH 3 DOTS ABOVE DOWNWARD; R; DAL */
JOINING_TYPE_R, /* 0690; DAL WITH 4 DOTS ABOVE; R; DAL */
JOINING_TYPE_R, /* 0691; REH WITH SMALL TAH; R; REH */
JOINING_TYPE_R, /* 0692; REH WITH SMALL V; R; REH */
JOINING_TYPE_R, /* 0693; REH WITH RING; R; REH */
JOINING_TYPE_R, /* 0694; REH WITH DOT BELOW; R; REH */
JOINING_TYPE_R, /* 0695; REH WITH SMALL V BELOW; R; REH */
JOINING_TYPE_R, /* 0696; REH WITH DOT BELOW AND DOT ABOVE; R; REH */
JOINING_TYPE_R, /* 0697; REH WITH 2 DOTS ABOVE; R; REH */
JOINING_TYPE_R, /* 0698; REH WITH 3 DOTS ABOVE; R; REH */
JOINING_TYPE_R, /* 0699; REH WITH 4 DOTS ABOVE; R; REH */
JOINING_TYPE_D, /* 069A; SEEN WITH DOT BELOW AND DOT ABOVE; D; SEEN */
JOINING_TYPE_D, /* 069B; SEEN WITH 3 DOTS BELOW; D; SEEN */
JOINING_TYPE_D, /* 069C; SEEN WITH 3 DOTS BELOW AND 3 DOTS ABOVE; D; SEEN */
JOINING_TYPE_D, /* 069D; SAD WITH 2 DOTS BELOW; D; SAD */
JOINING_TYPE_D, /* 069E; SAD WITH 3 DOTS ABOVE; D; SAD */
JOINING_TYPE_D, /* 069F; TAH WITH 3 DOTS ABOVE; D; TAH */
JOINING_TYPE_D, /* 06A0; AIN WITH 3 DOTS ABOVE; D; AIN */
JOINING_TYPE_D, /* 06A1; DOTLESS FEH; D; FEH */
JOINING_TYPE_D, /* 06A2; FEH WITH DOT MOVED BELOW; D; FEH */
JOINING_TYPE_D, /* 06A3; FEH WITH DOT BELOW; D; FEH */
JOINING_TYPE_D, /* 06A4; FEH WITH 3 DOTS ABOVE; D; FEH */
JOINING_TYPE_D, /* 06A5; FEH WITH 3 DOTS BELOW; D; FEH */
JOINING_TYPE_D, /* 06A6; FEH WITH 4 DOTS ABOVE; D; FEH */
JOINING_TYPE_D, /* 06A7; QAF WITH DOT ABOVE; D; QAF */
JOINING_TYPE_D, /* 06A8; QAF WITH 3 DOTS ABOVE; D; QAF */
JOINING_TYPE_D, /* 06A9; KEHEH; D; GAF */
JOINING_TYPE_D, /* 06AA; SWASH KAF; D; SWASH KAF */
JOINING_TYPE_D, /* 06AB; KAF WITH RING; D; GAF */
JOINING_TYPE_D, /* 06AC; KAF WITH DOT ABOVE; D; KAF */
JOINING_TYPE_D, /* 06AD; KAF WITH 3 DOTS ABOVE; D; KAF */
JOINING_TYPE_D, /* 06AE; KAF WITH 3 DOTS BELOW; D; KAF */
JOINING_TYPE_D, /* 06AF; GAF; D; GAF */
JOINING_TYPE_D, /* 06B0; GAF WITH RING; D; GAF */
JOINING_TYPE_D, /* 06B1; GAF WITH 2 DOTS ABOVE; D; GAF */
JOINING_TYPE_D, /* 06B2; GAF WITH 2 DOTS BELOW; D; GAF */
JOINING_TYPE_D, /* 06B3; GAF WITH 2 DOTS VERTICAL BELOW; D; GAF */
JOINING_TYPE_D, /* 06B4; GAF WITH 3 DOTS ABOVE; D; GAF */
JOINING_TYPE_D, /* 06B5; LAM WITH SMALL V; D; LAM */
JOINING_TYPE_D, /* 06B6; LAM WITH DOT ABOVE; D; LAM */
JOINING_TYPE_D, /* 06B7; LAM WITH 3 DOTS ABOVE; D; LAM */
JOINING_TYPE_D, /* 06B8; LAM WITH 3 DOTS BELOW; D; LAM */
JOINING_TYPE_D, /* 06B9; NOON WITH DOT BELOW; D; NOON */
JOINING_TYPE_D, /* 06BA; DOTLESS NOON; D; NOON */
JOINING_TYPE_D, /* 06BB; DOTLESS NOON WITH SMALL TAH; D; NOON */
JOINING_TYPE_D, /* 06BC; NOON WITH RING; D; NOON */
JOINING_TYPE_D, /* 06BD; NYA; D; NYA */
JOINING_TYPE_D, /* 06BE; KNOTTED HEH; D; KNOTTED HEH */
JOINING_TYPE_D, /* 06BF; HAH WITH MIDDLE 3 DOTS DOWNWARD AND DOT ABOVE; D; HAH */
JOINING_TYPE_R, /* 06C0; HAMZA ON HEH; R; TEH MARBUTA */
JOINING_TYPE_D, /* 06C1; HEH GOAL; D; HEH GOAL */
JOINING_TYPE_D, /* 06C2; HAMZA ON HEH GOAL; D; HEH GOAL */
JOINING_TYPE_R, /* 06C3; TEH MARBUTA GOAL; R; TEH MARBUTA GOAL */
JOINING_TYPE_R, /* 06C4; WAW WITH RING; R; WAW */
JOINING_TYPE_R, /* 06C5; WAW WITH BAR; R; WAW */
JOINING_TYPE_R, /* 06C6; WAW WITH SMALL V; R; WAW */
JOINING_TYPE_R, /* 06C7; WAW WITH DAMMA; R; WAW */
JOINING_TYPE_R, /* 06C8; WAW WITH ALEF ABOVE; R; WAW */
JOINING_TYPE_R, /* 06C9; WAW WITH INVERTED SMALL V; R; WAW */
JOINING_TYPE_R, /* 06CA; WAW WITH 2 DOTS ABOVE; R; WAW */
JOINING_TYPE_R, /* 06CB; WAW WITH 3 DOTS ABOVE; R; WAW */
JOINING_TYPE_D, /* 06CC; FARSI YEH; D; FARSI YEH */
JOINING_TYPE_R, /* 06CD; YEH WITH TAIL; R; YEH WITH TAIL */
JOINING_TYPE_D, /* 06CE; FARSI YEH WITH SMALL V; D; FARSI YEH */
JOINING_TYPE_R, /* 06CF; WAW WITH DOT ABOVE; R; WAW */
JOINING_TYPE_D, /* 06D0; YEH WITH 2 DOTS VERTICAL BELOW; D; YEH */
JOINING_TYPE_D, /* 06D1; YEH WITH 3 DOTS BELOW; D; YEH */
JOINING_TYPE_R, /* 06D2; YEH BARREE; R; YEH BARREE */
JOINING_TYPE_R, /* 06D3; HAMZA ON YEH BARREE; R; YEH BARREE */
JOINING_TYPE_X, /* 06D4 */
JOINING_TYPE_R, /* 06D5; AE; R; TEH MARBUTA */
JOINING_TYPE_X, /* 06D6 */
JOINING_TYPE_X, /* 06D7 */
JOINING_TYPE_X, /* 06D8 */
JOINING_TYPE_X, /* 06D9 */
JOINING_TYPE_X, /* 06DA */
JOINING_TYPE_X, /* 06DB */
JOINING_TYPE_X, /* 06DC */
JOINING_TYPE_U, /* 06DD; ARABIC END OF AYAH; U; No_Joining_Group */
JOINING_TYPE_X, /* 06DE */
JOINING_TYPE_X, /* 06DF */
JOINING_TYPE_X, /* 06E0 */
JOINING_TYPE_X, /* 06E1 */
JOINING_TYPE_X, /* 06E2 */
JOINING_TYPE_X, /* 06E3 */
JOINING_TYPE_X, /* 06E4 */
JOINING_TYPE_X, /* 06E5 */
JOINING_TYPE_X, /* 06E6 */
JOINING_TYPE_X, /* 06E7 */
JOINING_TYPE_X, /* 06E8 */
JOINING_TYPE_X, /* 06E9 */
JOINING_TYPE_X, /* 06EA */
JOINING_TYPE_X, /* 06EB */
JOINING_TYPE_X, /* 06EC */
JOINING_TYPE_X, /* 06ED */
JOINING_TYPE_R, /* 06EE; DAL WITH INVERTED V; R; DAL */
JOINING_TYPE_R, /* 06EF; REH WITH INVERTED V; R; REH */
JOINING_TYPE_X, /* 06F0 */
JOINING_TYPE_X, /* 06F1 */
JOINING_TYPE_X, /* 06F2 */
JOINING_TYPE_X, /* 06F3 */
JOINING_TYPE_X, /* 06F4 */
JOINING_TYPE_X, /* 06F5 */
JOINING_TYPE_X, /* 06F6 */
JOINING_TYPE_X, /* 06F7 */
JOINING_TYPE_X, /* 06F8 */
JOINING_TYPE_X, /* 06F9 */
JOINING_TYPE_D, /* 06FA; SEEN WITH DOT BELOW AND 3 DOTS ABOVE; D; SEEN */
JOINING_TYPE_D, /* 06FB; DAD WITH DOT BELOW; D; SAD */
JOINING_TYPE_D, /* 06FC; GHAIN WITH DOT BELOW; D; AIN */
JOINING_TYPE_X, /* 06FD */
JOINING_TYPE_X, /* 06FE */
JOINING_TYPE_D, /* 06FF; HEH WITH INVERTED V; D; KNOTTED HEH */
JOINING_TYPE_X, /* 0700 */
JOINING_TYPE_X, /* 0701 */
JOINING_TYPE_X, /* 0702 */
JOINING_TYPE_X, /* 0703 */
JOINING_TYPE_X, /* 0704 */
JOINING_TYPE_X, /* 0705 */
JOINING_TYPE_X, /* 0706 */
JOINING_TYPE_X, /* 0707 */
JOINING_TYPE_X, /* 0708 */
JOINING_TYPE_X, /* 0709 */
JOINING_TYPE_X, /* 070A */
JOINING_TYPE_X, /* 070B */
JOINING_TYPE_X, /* 070C */
JOINING_TYPE_X, /* 070D */
JOINING_TYPE_X, /* 070E */
JOINING_TYPE_X, /* 070F */
JOINING_GROUP_ALAPH, /* 0710; ALAPH; R; ALAPH */
JOINING_TYPE_X, /* 0711 */
JOINING_TYPE_D, /* 0712; BETH; D; BETH */
JOINING_TYPE_D, /* 0713; GAMAL; D; GAMAL */
JOINING_TYPE_D, /* 0714; GAMAL GARSHUNI; D; GAMAL */
JOINING_GROUP_DALATH_RISH, /* 0715; DALATH; R; DALATH RISH */
JOINING_GROUP_DALATH_RISH, /* 0716; DOTLESS DALATH RISH; R; DALATH RISH */
JOINING_TYPE_R, /* 0717; HE; R; HE */
JOINING_TYPE_R, /* 0718; WAW; R; SYRIAC WAW */
JOINING_TYPE_R, /* 0719; ZAIN; R; ZAIN */
JOINING_TYPE_D, /* 071A; HETH; D; HETH */
JOINING_TYPE_D, /* 071B; TETH; D; TETH */
JOINING_TYPE_D, /* 071C; TETH GARSHUNI; D; TETH */
JOINING_TYPE_D, /* 071D; YUDH; D; YUDH */
JOINING_TYPE_R, /* 071E; YUDH HE; R; YUDH HE */
JOINING_TYPE_D, /* 071F; KAPH; D; KAPH */
JOINING_TYPE_D, /* 0720; LAMADH; D; LAMADH */
JOINING_TYPE_D, /* 0721; MIM; D; MIM */
JOINING_TYPE_D, /* 0722; NUN; D; NUN */
JOINING_TYPE_D, /* 0723; SEMKATH; D; SEMKATH */
JOINING_TYPE_D, /* 0724; FINAL SEMKATH; D; FINAL SEMKATH */
JOINING_TYPE_D, /* 0725; E; D; E */
JOINING_TYPE_D, /* 0726; PE; D; PE */
JOINING_TYPE_D, /* 0727; REVERSED PE; D; REVERSED PE */
JOINING_TYPE_R, /* 0728; SADHE; R; SADHE */
JOINING_TYPE_D, /* 0729; QAPH; D; QAPH */
JOINING_GROUP_DALATH_RISH, /* 072A; RISH; R; DALATH RISH */
JOINING_TYPE_D, /* 072B; SHIN; D; SHIN */
JOINING_TYPE_R, /* 072C; TAW; R; TAW */
JOINING_TYPE_D, /* 072D; PERSIAN BHETH; D; BETH */
JOINING_TYPE_D, /* 072E; PERSIAN GHAMAL; D; GAMAL */
JOINING_GROUP_DALATH_RISH, /* 072F; PERSIAN DHALATH; R; DALATH RISH */
JOINING_TYPE_X, /* 0730 */
JOINING_TYPE_X, /* 0731 */
JOINING_TYPE_X, /* 0732 */
JOINING_TYPE_X, /* 0733 */
JOINING_TYPE_X, /* 0734 */
JOINING_TYPE_X, /* 0735 */
JOINING_TYPE_X, /* 0736 */
JOINING_TYPE_X, /* 0737 */
JOINING_TYPE_X, /* 0738 */
JOINING_TYPE_X, /* 0739 */
JOINING_TYPE_X, /* 073A */
JOINING_TYPE_X, /* 073B */
JOINING_TYPE_X, /* 073C */
JOINING_TYPE_X, /* 073D */
JOINING_TYPE_X, /* 073E */
JOINING_TYPE_X, /* 073F */
JOINING_TYPE_X, /* 0740 */
JOINING_TYPE_X, /* 0741 */
JOINING_TYPE_X, /* 0742 */
JOINING_TYPE_X, /* 0743 */
JOINING_TYPE_X, /* 0744 */
JOINING_TYPE_X, /* 0745 */
JOINING_TYPE_X, /* 0746 */
JOINING_TYPE_X, /* 0747 */
JOINING_TYPE_X, /* 0748 */
JOINING_TYPE_X, /* 0749 */
JOINING_TYPE_X, /* 074A */
JOINING_TYPE_X, /* 074B */
JOINING_TYPE_X, /* 074C */
JOINING_TYPE_R, /* 074D; SOGDIAN ZHAIN; R; ZHAIN */
JOINING_TYPE_D, /* 074E; SOGDIAN KHAPH; D; KHAPH */
JOINING_TYPE_D, /* 074F; SOGDIAN FE; D; FE */
JOINING_TYPE_D, /* 0750; BEH WITH 3 DOTS HORIZONTALLY BELOW; D; BEH */
JOINING_TYPE_D, /* 0751; BEH WITH DOT BELOW AND 3 DOTS ABOVE; D; BEH */
JOINING_TYPE_D, /* 0752; BEH WITH 3 DOTS POINTING UPWARDS BELOW; D; BEH */
JOINING_TYPE_D, /* 0753; BEH WITH 3 DOTS POINTING UPWARDS BELOW AND 2 DOTS ABOVE; D; BEH */
JOINING_TYPE_D, /* 0754; BEH WITH 2 DOTS BELOW AND DOT ABOVE; D; BEH */
JOINING_TYPE_D, /* 0755; BEH WITH INVERTED SMALL V BELOW; D; BEH */
JOINING_TYPE_D, /* 0756; BEH WITH SMALL V; D; BEH */
JOINING_TYPE_D, /* 0757; HAH WITH 2 DOTS ABOVE; D; HAH */
JOINING_TYPE_D, /* 0758; HAH WITH 3 DOTS POINTING UPWARDS BELOW; D; HAH */
JOINING_TYPE_R, /* 0759; DAL WITH 2 DOTS VERTICALLY BELOW AND SMALL TAH; R; DAL */
JOINING_TYPE_R, /* 075A; DAL WITH INVERTED SMALL V BELOW; R; DAL */
JOINING_TYPE_R, /* 075B; REH WITH STROKE; R; REH */
JOINING_TYPE_D, /* 075C; SEEN WITH 4 DOTS ABOVE; D; SEEN */
JOINING_TYPE_D, /* 075D; AIN WITH 2 DOTS ABOVE; D; AIN */
JOINING_TYPE_D, /* 075E; AIN WITH 3 DOTS POINTING DOWNWARDS ABOVE; D; AIN */
JOINING_TYPE_D, /* 075F; AIN WITH 2 DOTS VERTICALLY ABOVE; D; AIN */
JOINING_TYPE_D, /* 0760; FEH WITH 2 DOTS BELOW; D; FEH */
JOINING_TYPE_D, /* 0761; FEH WITH 3 DOTS POINTING UPWARDS BELOW; D; FEH */
JOINING_TYPE_D, /* 0762; KEHEH WITH DOT ABOVE; D; GAF */
JOINING_TYPE_D, /* 0763; KEHEH WITH 3 DOTS ABOVE; D; GAF */
JOINING_TYPE_D, /* 0764; KEHEH WITH 3 DOTS POINTING UPWARDS BELOW; D; GAF */
JOINING_TYPE_D, /* 0765; MEEM WITH DOT ABOVE; D; MEEM */
JOINING_TYPE_D, /* 0766; MEEM WITH DOT BELOW; D; MEEM */
JOINING_TYPE_D, /* 0767; NOON WITH 2 DOTS BELOW; D; NOON */
JOINING_TYPE_D, /* 0768; NOON WITH SMALL TAH; D; NOON */
JOINING_TYPE_D, /* 0769; NOON WITH SMALL V; D; NOON */
JOINING_TYPE_D, /* 076A; LAM WITH BAR; D; LAM */
JOINING_TYPE_R, /* 076B; REH WITH 2 DOTS VERTICALLY ABOVE; R; REH */
JOINING_TYPE_R, /* 076C; REH WITH HAMZA ABOVE; R; REH */
JOINING_TYPE_D, /* 076D; SEEN WITH 2 DOTS VERTICALLY ABOVE; D; SEEN */
JOINING_TYPE_D, /* 076E; HAH WITH SMALL TAH BELOW; D; HAH */
JOINING_TYPE_D, /* 076F; HAH WITH SMALL TAH AND 2 DOTS; D; HAH */
JOINING_TYPE_D, /* 0770; SEEN WITH SMALL TAH AND 2 DOTS; D; SEEN */
JOINING_TYPE_R, /* 0771; REH WITH SMALL TAH AND 2 DOTS; R; REH */
JOINING_TYPE_D, /* 0772; HAH WITH SMALL TAH ABOVE; D; HAH */
JOINING_TYPE_R, /* 0773; ALEF WITH DIGIT TWO ABOVE; R; ALEF */
JOINING_TYPE_R, /* 0774; ALEF WITH DIGIT THREE ABOVE; R; ALEF */
JOINING_TYPE_D, /* 0775; FARSI YEH WITH DIGIT TWO ABOVE; D; FARSI YEH */
JOINING_TYPE_D, /* 0776; FARSI YEH WITH DIGIT THREE ABOVE; D; FARSI YEH */
JOINING_TYPE_D, /* 0777; YEH WITH DIGIT FOUR BELOW; D; YEH */
JOINING_TYPE_R, /* 0778; WAW WITH DIGIT TWO ABOVE; R; WAW */
JOINING_TYPE_R, /* 0779; WAW WITH DIGIT THREE ABOVE; R; WAW */
JOINING_TYPE_D, /* 077A; YEH BARREE WITH DIGIT TWO ABOVE; D; BURUSHASKI YEH BARREE */
JOINING_TYPE_D, /* 077B; YEH BARREE WITH DIGIT THREE ABOVE; D; BURUSHASKI YEH BARREE */
JOINING_TYPE_D, /* 077C; HAH WITH DIGIT FOUR BELOW; D; HAH */
JOINING_TYPE_D, /* 077D; SEEN WITH DIGIT FOUR ABOVE; D; SEEN */
JOINING_TYPE_D, /* 077E; SEEN WITH INVERTED V; D; SEEN */
JOINING_TYPE_D, /* 077F; KAF WITH 2 DOTS ABOVE; D; KAF */
JOINING_TYPE_X, /* 0780 */
JOINING_TYPE_X, /* 0781 */
JOINING_TYPE_X, /* 0782 */
JOINING_TYPE_X, /* 0783 */
JOINING_TYPE_X, /* 0784 */
JOINING_TYPE_X, /* 0785 */
JOINING_TYPE_X, /* 0786 */
JOINING_TYPE_X, /* 0787 */
JOINING_TYPE_X, /* 0788 */
JOINING_TYPE_X, /* 0789 */
JOINING_TYPE_X, /* 078A */
JOINING_TYPE_X, /* 078B */
JOINING_TYPE_X, /* 078C */
JOINING_TYPE_X, /* 078D */
JOINING_TYPE_X, /* 078E */
JOINING_TYPE_X, /* 078F */
JOINING_TYPE_X, /* 0790 */
JOINING_TYPE_X, /* 0791 */
JOINING_TYPE_X, /* 0792 */
JOINING_TYPE_X, /* 0793 */
JOINING_TYPE_X, /* 0794 */
JOINING_TYPE_X, /* 0795 */
JOINING_TYPE_X, /* 0796 */
JOINING_TYPE_X, /* 0797 */
JOINING_TYPE_X, /* 0798 */
JOINING_TYPE_X, /* 0799 */
JOINING_TYPE_X, /* 079A */
JOINING_TYPE_X, /* 079B */
JOINING_TYPE_X, /* 079C */
JOINING_TYPE_X, /* 079D */
JOINING_TYPE_X, /* 079E */
JOINING_TYPE_X, /* 079F */
JOINING_TYPE_X, /* 07A0 */
JOINING_TYPE_X, /* 07A1 */
JOINING_TYPE_X, /* 07A2 */
JOINING_TYPE_X, /* 07A3 */
JOINING_TYPE_X, /* 07A4 */
JOINING_TYPE_X, /* 07A5 */
JOINING_TYPE_X, /* 07A6 */
JOINING_TYPE_X, /* 07A7 */
JOINING_TYPE_X, /* 07A8 */
JOINING_TYPE_X, /* 07A9 */
JOINING_TYPE_X, /* 07AA */
JOINING_TYPE_X, /* 07AB */
JOINING_TYPE_X, /* 07AC */
JOINING_TYPE_X, /* 07AD */
JOINING_TYPE_X, /* 07AE */
JOINING_TYPE_X, /* 07AF */
JOINING_TYPE_X, /* 07B0 */
JOINING_TYPE_X, /* 07B1 */
JOINING_TYPE_X, /* 07B2 */
JOINING_TYPE_X, /* 07B3 */
JOINING_TYPE_X, /* 07B4 */
JOINING_TYPE_X, /* 07B5 */
JOINING_TYPE_X, /* 07B6 */
JOINING_TYPE_X, /* 07B7 */
JOINING_TYPE_X, /* 07B8 */
JOINING_TYPE_X, /* 07B9 */
JOINING_TYPE_X, /* 07BA */
JOINING_TYPE_X, /* 07BB */
JOINING_TYPE_X, /* 07BC */
JOINING_TYPE_X, /* 07BD */
JOINING_TYPE_X, /* 07BE */
JOINING_TYPE_X, /* 07BF */
JOINING_TYPE_X, /* 07C0 */
JOINING_TYPE_X, /* 07C1 */
JOINING_TYPE_X, /* 07C2 */
JOINING_TYPE_X, /* 07C3 */
JOINING_TYPE_X, /* 07C4 */
JOINING_TYPE_X, /* 07C5 */
JOINING_TYPE_X, /* 07C6 */
JOINING_TYPE_X, /* 07C7 */
JOINING_TYPE_X, /* 07C8 */
JOINING_TYPE_X, /* 07C9 */
JOINING_TYPE_D, /* 07CA; NKO A; D; No_Joining_Group */
JOINING_TYPE_D, /* 07CB; NKO EE; D; No_Joining_Group */
JOINING_TYPE_D, /* 07CC; NKO I; D; No_Joining_Group */
JOINING_TYPE_D, /* 07CD; NKO E; D; No_Joining_Group */
JOINING_TYPE_D, /* 07CE; NKO U; D; No_Joining_Group */
JOINING_TYPE_D, /* 07CF; NKO OO; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D0; NKO O; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D1; NKO DAGBASINNA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D2; NKO N; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D3; NKO BA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D4; NKO PA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D5; NKO TA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D6; NKO JA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D7; NKO CHA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D8; NKO DA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07D9; NKO RA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07DA; NKO RRA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07DB; NKO SA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07DC; NKO GBA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07DD; NKO FA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07DE; NKO KA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07DF; NKO LA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E0; NKO NA WOLOSO; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E1; NKO MA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E2; NKO NYA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E3; NKO NA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E4; NKO HA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E5; NKO WA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E6; NKO YA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E7; NKO NYA WOLOSO; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E8; NKO JONA JA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07E9; NKO JONA CHA; D; No_Joining_Group */
JOINING_TYPE_D, /* 07EA; NKO JONA RA; D; No_Joining_Group */
JOINING_TYPE_X, /* 07EB */
JOINING_TYPE_X, /* 07EC */
JOINING_TYPE_X, /* 07ED */
JOINING_TYPE_X, /* 07EE */
JOINING_TYPE_X, /* 07EF */
JOINING_TYPE_X, /* 07F0 */
JOINING_TYPE_X, /* 07F1 */
JOINING_TYPE_X, /* 07F2 */
JOINING_TYPE_X, /* 07F3 */
JOINING_TYPE_X, /* 07F4 */
JOINING_TYPE_X, /* 07F5 */
JOINING_TYPE_X, /* 07F6 */
JOINING_TYPE_X, /* 07F7 */
JOINING_TYPE_X, /* 07F8 */
JOINING_TYPE_X, /* 07F9 */
JOINING_TYPE_C, /* 07FA; NKO LAJANYALAN; C; No_Joining_Group */
JOINING_TYPE_X, /* 07FB */
JOINING_TYPE_X, /* 07FC */
JOINING_TYPE_X, /* 07FD */
JOINING_TYPE_X, /* 07FE */
JOINING_TYPE_X, /* 07FF */
/* == End of generated table == */
JOINING_TYPE_X
};
static unsigned int get_joining_type (hb_codepoint_t u, hb_category_t gen_cat)
{
/* TODO Macroize the magic bit operations */
if (likely ((u & ~(0x0600^0x07FF)) == 0x0600)) {
unsigned int j_type = arabic_syriac_nko_joining_types[u - 0x0600];
if (likely (j_type != JOINING_TYPE_X))
return j_type;
}
if (unlikely ((u & ~(0x200C^0x200D)) == 0x200C)) {
return u == 0x200C ? JOINING_TYPE_U : JOINING_TYPE_C;
}
return ((1<<gen_cat) & ((1<<HB_CATEGORY_NON_SPACING_MARK)|(1<<HB_CATEGORY_ENCLOSING_MARK)|(1<<HB_CATEGORY_FORMAT))) ?
JOINING_TYPE_T : JOINING_TYPE_U;
}
static const hb_tag_t arabic_syriac_features[] =
{
HB_TAG('i','n','i','t'),
HB_TAG('m','e','d','i'),
HB_TAG('f','i','n','a'),
HB_TAG('i','s','o','l'),
/* Syriac */
HB_TAG('m','e','d','2'),
HB_TAG('f','i','n','2'),
HB_TAG('f','i','n','3'),
HB_TAG_NONE
};
/* Same order as the feature array */
enum {
INIT,
MEDI,
FINA,
ISOL,
/* Syriac */
MED2,
FIN2,
FIN3,
NONE,
COMMON_NUM_FEATURES = 4,
SYRIAC_NUM_FEATURES = 7,
TOTAL_NUM_FEATURES = NONE
};
static const struct arabic_state_table_entry {
uint8_t prev_action;
uint8_t curr_action;
uint8_t next_state;
uint8_t padding;
} arabic_state_table[][NUM_STATE_MACHINE_COLS] =
{
/* jt_U, jt_R, jt_D, jg_ALAPH, jg_DALATH_RISH */
/* State 0: prev was U, not willing to join. */
{ {NONE,NONE,0}, {NONE,ISOL,1}, {NONE,ISOL,2}, {NONE,ISOL,1}, {NONE,ISOL,6}, },
/* State 1: prev was R or ISOL/ALAPH, not willing to join. */
{ {NONE,NONE,0}, {NONE,ISOL,1}, {NONE,ISOL,2}, {NONE,FIN2,5}, {NONE,ISOL,6}, },
/* State 2: prev was D/ISOL, willing to join. */
{ {NONE,NONE,0}, {INIT,FINA,1}, {INIT,FINA,3}, {INIT,FINA,4}, {INIT,FINA,6}, },
/* State 3: prev was D/FINA, willing to join. */
{ {NONE,NONE,0}, {MEDI,FINA,1}, {MEDI,FINA,3}, {MEDI,FINA,4}, {MEDI,FINA,6}, },
/* State 4: prev was FINA ALAPH, not willing to join. */
{ {NONE,NONE,0}, {MED2,ISOL,1}, {MED2,ISOL,2}, {MED2,FIN2,5}, {MED2,ISOL,6}, },
/* State 5: prev was FIN2/FIN3 ALAPH, not willing to join. */
{ {NONE,NONE,0}, {ISOL,ISOL,1}, {ISOL,ISOL,2}, {ISOL,FIN2,5}, {ISOL,ISOL,6}, },
/* State 6: prev was DALATH/RISH, not willing to join. */
{ {NONE,NONE,0}, {NONE,ISOL,1}, {NONE,ISOL,2}, {NONE,FIN3,5}, {NONE,ISOL,6}, }
};
void
_hb_ot_shape_complex_collect_features_arabic (hb_ot_shape_plan_t *plan, const hb_segment_properties_t *props)
{
unsigned int num_features = props->script == HB_SCRIPT_SYRIAC ? SYRIAC_NUM_FEATURES : COMMON_NUM_FEATURES;
for (unsigned int i = 0; i < num_features; i++)
plan->map.add_bool_feature (arabic_syriac_features[i], false);
}
void
_hb_ot_shape_complex_setup_masks_arabic (hb_ot_shape_context_t *c)
{
unsigned int count = c->buffer->len;
unsigned int prev = 0, state = 0;
for (unsigned int i = 0; i < count; i++)
{
unsigned int this_type = get_joining_type (c->buffer->info[i].codepoint, c->buffer->unicode->v.get_general_category (c->buffer->info[i].codepoint));
if (unlikely (this_type == JOINING_TYPE_T))
continue;
const arabic_state_table_entry *entry = &arabic_state_table[state][this_type];
if (entry->prev_action != NONE)
c->buffer->info[prev].gproperty = entry->prev_action;
c->buffer->info[i].gproperty = entry->curr_action;
prev = i;
state = entry->next_state;
}
hb_mask_t mask_array[TOTAL_NUM_FEATURES + 1] = {0};
unsigned int num_masks = c->buffer->props.script == HB_SCRIPT_SYRIAC ? SYRIAC_NUM_FEATURES : COMMON_NUM_FEATURES;
for (unsigned int i = 0; i < num_masks; i++)
mask_array[i] = c->plan->map.get_mask (arabic_syriac_features[i]);
for (unsigned int i = 0; i < count; i++)
c->buffer->info[i].mask |= mask_array[c->buffer->info[i].gproperty];
}
HB_END_DECLS
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