429 lines
12 KiB
C++
429 lines
12 KiB
C++
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#line 1 "hb-ot-shaper-khmer-machine.rl"
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/*
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* Copyright © 2011,2012 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#ifndef HB_OT_SHAPER_KHMER_MACHINE_HH
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#define HB_OT_SHAPER_KHMER_MACHINE_HH
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#include "hb.hh"
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#include "hb-ot-layout.hh"
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#include "hb-ot-shaper-indic.hh"
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/* buffer var allocations */
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#define khmer_category() ot_shaper_var_u8_category() /* khmer_category_t */
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using khmer_category_t = unsigned;
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#define K_Cat(Cat) khmer_syllable_machine_ex_##Cat
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enum khmer_syllable_type_t {
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khmer_consonant_syllable,
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khmer_broken_cluster,
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khmer_non_khmer_cluster,
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};
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#line 49 "hb-ot-shaper-khmer-machine.hh"
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#define khmer_syllable_machine_ex_C 1u
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#define khmer_syllable_machine_ex_DOTTEDCIRCLE 11u
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#define khmer_syllable_machine_ex_H 4u
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#define khmer_syllable_machine_ex_PLACEHOLDER 10u
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#define khmer_syllable_machine_ex_Ra 15u
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#define khmer_syllable_machine_ex_Robatic 25u
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#define khmer_syllable_machine_ex_V 2u
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#define khmer_syllable_machine_ex_VAbv 20u
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#define khmer_syllable_machine_ex_VBlw 21u
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#define khmer_syllable_machine_ex_VPre 22u
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#define khmer_syllable_machine_ex_VPst 23u
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#define khmer_syllable_machine_ex_Xgroup 26u
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#define khmer_syllable_machine_ex_Ygroup 27u
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#define khmer_syllable_machine_ex_ZWJ 6u
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#define khmer_syllable_machine_ex_ZWNJ 5u
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#line 65 "hb-ot-shaper-khmer-machine.hh"
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static const unsigned char _khmer_syllable_machine_trans_keys[] = {
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5u, 26u, 5u, 26u, 1u, 15u, 5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u,
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5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 1u, 15u, 5u, 26u, 5u, 26u,
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5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 5u, 26u, 1u, 27u, 4u, 27u, 1u, 15u,
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4u, 27u, 4u, 27u, 27u, 27u, 4u, 27u, 4u, 27u, 4u, 27u, 4u, 27u, 4u, 27u,
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4u, 27u, 1u, 15u, 4u, 27u, 4u, 27u, 27u, 27u, 4u, 27u, 4u, 27u, 4u, 27u,
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4u, 27u, 4u, 27u, 5u, 26u, 0
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};
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static const char _khmer_syllable_machine_key_spans[] = {
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22, 22, 15, 22, 22, 22, 22, 22,
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22, 22, 22, 22, 22, 15, 22, 22,
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22, 22, 22, 22, 22, 27, 24, 15,
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24, 24, 1, 24, 24, 24, 24, 24,
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24, 15, 24, 24, 1, 24, 24, 24,
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24, 24, 22
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};
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static const short _khmer_syllable_machine_index_offsets[] = {
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0, 23, 46, 62, 85, 108, 131, 154,
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177, 200, 223, 246, 269, 292, 308, 331,
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354, 377, 400, 423, 446, 469, 497, 522,
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538, 563, 588, 590, 615, 640, 665, 690,
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715, 740, 756, 781, 806, 808, 833, 858,
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883, 908, 933
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};
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static const char _khmer_syllable_machine_indicies[] = {
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1, 1, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 2,
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0, 0, 0, 0, 3, 4, 0, 1,
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1, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 4, 0, 5, 5,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 5, 0, 1, 1,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 2, 0, 0,
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0, 0, 0, 4, 0, 6, 6, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 2, 0, 7, 7, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 8, 0, 9, 9, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 2, 0, 0, 0, 0, 0,
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10, 0, 9, 9, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 10,
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0, 11, 11, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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2, 0, 0, 0, 0, 0, 12, 0,
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11, 11, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 12, 0, 1,
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1, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 2, 0,
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0, 0, 0, 13, 4, 0, 15, 15,
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14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 16, 14, 14,
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14, 14, 17, 18, 14, 15, 15, 19,
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19, 19, 19, 19, 19, 19, 19, 19,
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19, 19, 19, 19, 19, 19, 19, 19,
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19, 19, 18, 19, 20, 20, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 20, 14, 15, 15, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 16, 14, 14, 14, 14,
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14, 18, 14, 21, 21, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14,
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16, 14, 22, 22, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 23,
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14, 24, 24, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14,
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16, 14, 14, 14, 14, 14, 25, 14,
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24, 24, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 25, 14, 26,
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26, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 16, 14,
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14, 14, 14, 14, 27, 14, 26, 26,
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14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 14, 14, 14, 14, 14,
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14, 14, 14, 27, 14, 29, 29, 28,
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30, 31, 31, 28, 28, 28, 13, 13,
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28, 28, 28, 29, 28, 28, 28, 28,
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16, 25, 27, 23, 28, 17, 18, 20,
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28, 33, 34, 34, 32, 32, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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32, 2, 10, 12, 8, 32, 13, 4,
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5, 32, 35, 35, 32, 32, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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35, 32, 33, 36, 36, 32, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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32, 32, 2, 10, 12, 8, 32, 3,
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4, 5, 32, 37, 38, 38, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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32, 32, 32, 2, 10, 12, 8, 32,
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32, 4, 5, 32, 5, 32, 37, 6,
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6, 32, 32, 32, 32, 32, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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32, 8, 32, 32, 2, 5, 32, 37,
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7, 7, 32, 32, 32, 32, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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32, 32, 32, 32, 32, 8, 5, 32,
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37, 39, 39, 32, 32, 32, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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2, 32, 32, 8, 32, 32, 10, 5,
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32, 37, 40, 40, 32, 32, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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32, 2, 10, 32, 8, 32, 32, 12,
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5, 32, 33, 38, 38, 32, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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32, 32, 2, 10, 12, 8, 32, 32,
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4, 5, 32, 33, 38, 38, 32, 32,
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32, 32, 32, 32, 32, 32, 32, 32,
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32, 32, 32, 2, 10, 12, 8, 32,
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3, 4, 5, 32, 42, 42, 41, 41,
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41, 41, 41, 41, 41, 41, 41, 41,
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41, 41, 42, 41, 30, 43, 43, 41,
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41, 41, 41, 41, 41, 41, 41, 41,
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41, 41, 41, 41, 16, 25, 27, 23,
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41, 17, 18, 20, 41, 44, 45, 45,
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41, 41, 41, 41, 41, 41, 41, 41,
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41, 41, 41, 41, 41, 16, 25, 27,
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23, 41, 41, 18, 20, 41, 20, 41,
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44, 21, 21, 41, 41, 41, 41, 41,
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41, 41, 41, 41, 41, 41, 41, 41,
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41, 41, 41, 23, 41, 41, 16, 20,
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41, 44, 22, 22, 41, 41, 41, 41,
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41, 41, 41, 41, 41, 41, 41, 41,
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41, 41, 41, 41, 41, 41, 41, 23,
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20, 41, 44, 46, 46, 41, 41, 41,
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41, 41, 41, 41, 41, 41, 41, 41,
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41, 41, 16, 41, 41, 23, 41, 41,
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25, 20, 41, 44, 47, 47, 41, 41,
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41, 41, 41, 41, 41, 41, 41, 41,
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41, 41, 41, 16, 25, 41, 23, 41,
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41, 27, 20, 41, 30, 45, 45, 41,
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41, 41, 41, 41, 41, 41, 41, 41,
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41, 41, 41, 41, 16, 25, 27, 23,
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41, 41, 18, 20, 41, 15, 15, 48,
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48, 48, 48, 48, 48, 48, 48, 48,
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48, 48, 48, 48, 16, 48, 48, 48,
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48, 48, 18, 48, 0
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};
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static const char _khmer_syllable_machine_trans_targs[] = {
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21, 1, 27, 31, 25, 26, 4, 5,
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28, 7, 29, 9, 30, 32, 21, 12,
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37, 41, 35, 21, 36, 15, 16, 38,
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18, 39, 20, 40, 21, 22, 33, 42,
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21, 23, 10, 24, 0, 2, 3, 6,
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8, 21, 34, 11, 13, 14, 17, 19,
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21
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};
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static const char _khmer_syllable_machine_trans_actions[] = {
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1, 0, 2, 2, 2, 0, 0, 0,
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2, 0, 2, 0, 2, 2, 3, 0,
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2, 4, 4, 5, 0, 0, 0, 2,
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0, 2, 0, 2, 8, 2, 0, 9,
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10, 0, 0, 2, 0, 0, 0, 0,
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0, 11, 4, 0, 0, 0, 0, 0,
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12
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};
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static const char _khmer_syllable_machine_to_state_actions[] = {
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 6, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0
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};
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static const char _khmer_syllable_machine_from_state_actions[] = {
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 7, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0
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};
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static const short _khmer_syllable_machine_eof_trans[] = {
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1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 15, 20, 15, 15, 15,
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15, 15, 15, 15, 15, 0, 33, 33,
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33, 33, 33, 33, 33, 33, 33, 33,
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33, 42, 42, 42, 42, 42, 42, 42,
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42, 42, 49
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};
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static const int khmer_syllable_machine_start = 21;
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static const int khmer_syllable_machine_first_final = 21;
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static const int khmer_syllable_machine_error = -1;
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static const int khmer_syllable_machine_en_main = 21;
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#line 53 "hb-ot-shaper-khmer-machine.rl"
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#line 102 "hb-ot-shaper-khmer-machine.rl"
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#define found_syllable(syllable_type) \
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HB_STMT_START { \
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if (0) fprintf (stderr, "syllable %d..%d %s\n", ts, te, #syllable_type); \
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for (unsigned int i = ts; i < te; i++) \
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info[i].syllable() = (syllable_serial << 4) | syllable_type; \
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syllable_serial++; \
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if (unlikely (syllable_serial == 16)) syllable_serial = 1; \
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} HB_STMT_END
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inline void
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find_syllables_khmer (hb_buffer_t *buffer)
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{
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unsigned int p, pe, eof, ts, te, act HB_UNUSED;
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int cs;
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hb_glyph_info_t *info = buffer->info;
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#line 287 "hb-ot-shaper-khmer-machine.hh"
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{
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cs = khmer_syllable_machine_start;
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ts = 0;
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te = 0;
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act = 0;
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}
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#line 122 "hb-ot-shaper-khmer-machine.rl"
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p = 0;
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pe = eof = buffer->len;
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unsigned int syllable_serial = 1;
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#line 299 "hb-ot-shaper-khmer-machine.hh"
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{
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int _slen;
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int _trans;
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const unsigned char *_keys;
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const char *_inds;
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if ( p == pe )
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goto _test_eof;
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_resume:
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switch ( _khmer_syllable_machine_from_state_actions[cs] ) {
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case 7:
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#line 1 "NONE"
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{ts = p;}
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break;
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#line 311 "hb-ot-shaper-khmer-machine.hh"
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}
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_keys = _khmer_syllable_machine_trans_keys + (cs<<1);
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_inds = _khmer_syllable_machine_indicies + _khmer_syllable_machine_index_offsets[cs];
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_slen = _khmer_syllable_machine_key_spans[cs];
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_trans = _inds[ _slen > 0 && _keys[0] <=( info[p].khmer_category()) &&
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( info[p].khmer_category()) <= _keys[1] ?
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( info[p].khmer_category()) - _keys[0] : _slen ];
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_eof_trans:
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cs = _khmer_syllable_machine_trans_targs[_trans];
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if ( _khmer_syllable_machine_trans_actions[_trans] == 0 )
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goto _again;
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switch ( _khmer_syllable_machine_trans_actions[_trans] ) {
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case 2:
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#line 1 "NONE"
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{te = p+1;}
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break;
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case 8:
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#line 98 "hb-ot-shaper-khmer-machine.rl"
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{te = p+1;{ found_syllable (khmer_non_khmer_cluster); }}
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break;
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case 10:
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#line 96 "hb-ot-shaper-khmer-machine.rl"
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{te = p;p--;{ found_syllable (khmer_consonant_syllable); }}
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break;
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case 11:
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#line 97 "hb-ot-shaper-khmer-machine.rl"
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{te = p;p--;{ found_syllable (khmer_broken_cluster); buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_BROKEN_SYLLABLE; }}
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break;
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case 12:
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#line 98 "hb-ot-shaper-khmer-machine.rl"
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{te = p;p--;{ found_syllable (khmer_non_khmer_cluster); }}
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break;
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case 1:
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#line 96 "hb-ot-shaper-khmer-machine.rl"
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{{p = ((te))-1;}{ found_syllable (khmer_consonant_syllable); }}
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break;
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case 3:
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#line 97 "hb-ot-shaper-khmer-machine.rl"
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{{p = ((te))-1;}{ found_syllable (khmer_broken_cluster); buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_BROKEN_SYLLABLE; }}
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break;
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case 5:
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#line 1 "NONE"
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{ switch( act ) {
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case 2:
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{{p = ((te))-1;} found_syllable (khmer_broken_cluster); buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_BROKEN_SYLLABLE; }
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break;
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case 3:
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{{p = ((te))-1;} found_syllable (khmer_non_khmer_cluster); }
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break;
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}
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}
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break;
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case 4:
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#line 1 "NONE"
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{te = p+1;}
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#line 97 "hb-ot-shaper-khmer-machine.rl"
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{act = 2;}
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break;
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case 9:
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#line 1 "NONE"
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{te = p+1;}
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#line 98 "hb-ot-shaper-khmer-machine.rl"
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{act = 3;}
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break;
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#line 368 "hb-ot-shaper-khmer-machine.hh"
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}
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_again:
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switch ( _khmer_syllable_machine_to_state_actions[cs] ) {
|
|
case 6:
|
|
#line 1 "NONE"
|
|
{ts = 0;}
|
|
break;
|
|
#line 375 "hb-ot-shaper-khmer-machine.hh"
|
|
}
|
|
|
|
if ( ++p != pe )
|
|
goto _resume;
|
|
_test_eof: {}
|
|
if ( p == eof )
|
|
{
|
|
if ( _khmer_syllable_machine_eof_trans[cs] > 0 ) {
|
|
_trans = _khmer_syllable_machine_eof_trans[cs] - 1;
|
|
goto _eof_trans;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
#line 130 "hb-ot-shaper-khmer-machine.rl"
|
|
|
|
}
|
|
|
|
#undef found_syllable
|
|
|
|
#endif /* HB_OT_SHAPER_KHMER_MACHINE_HH */
|