HarfBuzz text shaping engine
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370 lines
10 KiB
370 lines
10 KiB
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#line 1 "hb-ot-shape-complex-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_SHAPE_COMPLEX_KHMER_MACHINE_HH |
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#define HB_OT_SHAPE_COMPLEX_KHMER_MACHINE_HH |
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#include "hb.hh" |
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#line 36 "hb-ot-shape-complex-khmer-machine.hh" |
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static const unsigned char _khmer_syllable_machine_trans_keys[] = { |
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5u, 26u, 5u, 21u, 5u, 26u, 5u, 21u, 1u, 16u, 5u, 21u, 5u, 26u, 5u, 21u, |
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5u, 26u, 5u, 21u, 5u, 21u, 5u, 26u, 5u, 21u, 1u, 16u, 5u, 21u, 5u, 26u, |
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5u, 21u, 5u, 26u, 5u, 21u, 5u, 26u, 1u, 29u, 5u, 29u, 5u, 29u, 5u, 29u, |
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22u, 22u, 5u, 22u, 5u, 29u, 5u, 29u, 5u, 29u, 1u, 16u, 5u, 26u, 5u, 29u, |
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5u, 29u, 22u, 22u, 5u, 22u, 5u, 29u, 5u, 29u, 1u, 16u, 5u, 29u, 5u, 29u, |
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0 |
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}; |
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static const char _khmer_syllable_machine_key_spans[] = { |
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22, 17, 22, 17, 16, 17, 22, 17, |
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22, 17, 17, 22, 17, 16, 17, 22, |
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17, 22, 17, 22, 29, 25, 25, 25, |
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1, 18, 25, 25, 25, 16, 22, 25, |
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25, 1, 18, 25, 25, 16, 25, 25 |
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}; |
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static const short _khmer_syllable_machine_index_offsets[] = { |
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0, 23, 41, 64, 82, 99, 117, 140, |
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158, 181, 199, 217, 240, 258, 275, 293, |
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316, 334, 357, 375, 398, 428, 454, 480, |
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506, 508, 527, 553, 579, 605, 622, 645, |
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671, 697, 699, 718, 744, 770, 787, 813 |
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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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3, 0, 0, 0, 0, 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, 3, |
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0, 1, 1, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 3, 0, 0, 0, 0, 4, 0, |
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5, 5, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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4, 0, 6, 6, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 6, 0, 7, 7, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 8, 0, 9, 9, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 10, 0, 0, |
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0, 0, 4, 0, 9, 9, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 10, 0, 11, 11, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 12, 0, |
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0, 0, 0, 4, 0, 11, 11, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 12, 0, 14, |
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14, 13, 13, 13, 13, 13, 13, 13, |
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13, 13, 13, 13, 13, 13, 13, 15, |
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13, 14, 14, 16, 16, 16, 16, 16, |
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16, 16, 16, 16, 16, 16, 16, 16, |
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16, 15, 16, 16, 16, 16, 17, 16, |
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18, 18, 16, 16, 16, 16, 16, 16, |
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16, 16, 16, 16, 16, 16, 16, 16, |
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17, 16, 19, 19, 16, 16, 16, 16, |
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16, 16, 16, 16, 16, 16, 16, 16, |
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16, 19, 16, 20, 20, 16, 16, 16, |
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16, 16, 16, 16, 16, 16, 16, 16, |
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16, 16, 16, 21, 16, 22, 22, 16, |
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16, 16, 16, 16, 16, 16, 16, 16, |
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16, 16, 16, 16, 16, 23, 16, 16, |
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16, 16, 17, 16, 22, 22, 16, 16, |
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16, 16, 16, 16, 16, 16, 16, 16, |
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16, 16, 16, 16, 23, 16, 24, 24, |
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16, 16, 16, 16, 16, 16, 16, 16, |
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16, 16, 16, 16, 16, 16, 25, 16, |
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16, 16, 16, 17, 16, 24, 24, 16, |
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16, 16, 16, 16, 16, 16, 16, 16, |
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16, 16, 16, 16, 16, 25, 16, 14, |
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14, 16, 16, 16, 16, 16, 16, 16, |
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16, 16, 16, 16, 16, 16, 26, 15, |
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16, 16, 16, 16, 17, 16, 28, 28, |
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27, 27, 29, 29, 27, 27, 27, 27, |
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2, 2, 27, 30, 27, 28, 27, 27, |
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27, 27, 15, 19, 27, 27, 27, 17, |
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23, 25, 21, 27, 32, 32, 31, 31, |
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31, 31, 31, 31, 31, 33, 31, 31, |
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31, 31, 31, 2, 3, 6, 31, 31, |
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31, 4, 10, 12, 8, 31, 34, 34, |
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31, 31, 31, 31, 31, 31, 31, 35, |
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31, 31, 31, 31, 31, 31, 3, 6, |
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31, 31, 31, 4, 10, 12, 8, 31, |
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5, 5, 31, 31, 31, 31, 31, 31, |
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31, 35, 31, 31, 31, 31, 31, 31, |
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4, 6, 31, 31, 31, 31, 31, 31, |
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8, 31, 6, 31, 7, 7, 31, 31, |
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31, 31, 31, 31, 31, 35, 31, 31, |
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31, 31, 31, 31, 8, 6, 31, 36, |
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36, 31, 31, 31, 31, 31, 31, 31, |
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35, 31, 31, 31, 31, 31, 31, 10, |
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6, 31, 31, 31, 4, 31, 31, 8, |
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31, 37, 37, 31, 31, 31, 31, 31, |
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31, 31, 35, 31, 31, 31, 31, 31, |
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31, 12, 6, 31, 31, 31, 4, 10, |
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31, 8, 31, 34, 34, 31, 31, 31, |
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31, 31, 31, 31, 33, 31, 31, 31, |
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31, 31, 31, 3, 6, 31, 31, 31, |
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4, 10, 12, 8, 31, 28, 28, 31, |
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31, 31, 31, 31, 31, 31, 31, 31, |
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31, 31, 31, 31, 28, 31, 14, 14, |
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38, 38, 38, 38, 38, 38, 38, 38, |
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38, 38, 38, 38, 38, 38, 15, 38, |
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38, 38, 38, 17, 38, 40, 40, 39, |
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39, 39, 39, 39, 39, 39, 41, 39, |
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39, 39, 39, 39, 39, 15, 19, 39, |
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39, 39, 17, 23, 25, 21, 39, 18, |
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18, 39, 39, 39, 39, 39, 39, 39, |
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41, 39, 39, 39, 39, 39, 39, 17, |
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19, 39, 39, 39, 39, 39, 39, 21, |
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39, 19, 39, 20, 20, 39, 39, 39, |
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39, 39, 39, 39, 41, 39, 39, 39, |
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39, 39, 39, 21, 19, 39, 42, 42, |
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39, 39, 39, 39, 39, 39, 39, 41, |
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39, 39, 39, 39, 39, 39, 23, 19, |
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39, 39, 39, 17, 39, 39, 21, 39, |
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43, 43, 39, 39, 39, 39, 39, 39, |
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39, 41, 39, 39, 39, 39, 39, 39, |
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25, 19, 39, 39, 39, 17, 23, 39, |
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21, 39, 44, 44, 39, 39, 39, 39, |
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39, 39, 39, 39, 39, 39, 39, 39, |
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39, 44, 39, 45, 45, 39, 39, 39, |
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39, 39, 39, 39, 30, 39, 39, 39, |
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39, 39, 26, 15, 19, 39, 39, 39, |
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17, 23, 25, 21, 39, 40, 40, 39, |
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39, 39, 39, 39, 39, 39, 30, 39, |
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39, 39, 39, 39, 39, 15, 19, 39, |
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39, 39, 17, 23, 25, 21, 39, 0 |
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}; |
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static const char _khmer_syllable_machine_trans_targs[] = { |
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20, 1, 28, 22, 23, 3, 24, 5, |
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25, 7, 26, 9, 27, 20, 10, 31, |
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20, 32, 12, 33, 14, 34, 16, 35, |
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18, 36, 39, 20, 21, 30, 37, 20, |
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0, 29, 2, 4, 6, 8, 20, 20, |
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11, 13, 15, 17, 38, 19 |
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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, 3, 0, 4, |
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5, 2, 0, 0, 0, 2, 0, 2, |
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0, 2, 4, 8, 2, 9, 0, 10, |
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0, 0, 0, 0, 0, 0, 11, 12, |
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0, 0, 0, 0, 4, 0 |
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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, 6, 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, 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, 7, 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, 0 |
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}; |
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static const unsigned char _khmer_syllable_machine_eof_trans[] = { |
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1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 14, 17, 17, 17, 17, 17, |
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17, 17, 17, 17, 0, 32, 32, 32, |
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32, 32, 32, 32, 32, 32, 39, 40, |
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40, 40, 40, 40, 40, 40, 40, 40 |
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}; |
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static const int khmer_syllable_machine_start = 20; |
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static const int khmer_syllable_machine_first_final = 20; |
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static const int khmer_syllable_machine_error = -1; |
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static const int khmer_syllable_machine_en_main = 20; |
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#line 36 "hb-ot-shape-complex-khmer-machine.rl" |
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#line 80 "hb-ot-shape-complex-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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static void |
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find_syllables (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 242 "hb-ot-shape-complex-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 100 "hb-ot-shape-complex-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 258 "hb-ot-shape-complex-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 272 "hb-ot-shape-complex-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 76 "hb-ot-shape-complex-khmer-machine.rl" |
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{te = p+1;{ found_syllable (non_khmer_cluster); }} |
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break; |
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case 10: |
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#line 74 "hb-ot-shape-complex-khmer-machine.rl" |
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{te = p;p--;{ found_syllable (consonant_syllable); }} |
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break; |
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case 12: |
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#line 75 "hb-ot-shape-complex-khmer-machine.rl" |
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{te = p;p--;{ found_syllable (broken_cluster); }} |
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break; |
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case 11: |
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#line 76 "hb-ot-shape-complex-khmer-machine.rl" |
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{te = p;p--;{ found_syllable (non_khmer_cluster); }} |
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break; |
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case 1: |
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#line 74 "hb-ot-shape-complex-khmer-machine.rl" |
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{{p = ((te))-1;}{ found_syllable (consonant_syllable); }} |
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break; |
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case 5: |
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#line 75 "hb-ot-shape-complex-khmer-machine.rl" |
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{{p = ((te))-1;}{ found_syllable (broken_cluster); }} |
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break; |
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case 3: |
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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 (broken_cluster); } |
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break; |
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case 3: |
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{{p = ((te))-1;} found_syllable (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 75 "hb-ot-shape-complex-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 76 "hb-ot-shape-complex-khmer-machine.rl" |
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{act = 3;} |
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break; |
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#line 342 "hb-ot-shape-complex-khmer-machine.hh" |
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} |
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_again: |
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switch ( _khmer_syllable_machine_to_state_actions[cs] ) { |
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case 6: |
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#line 1 "NONE" |
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{ts = 0;} |
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break; |
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#line 351 "hb-ot-shape-complex-khmer-machine.hh" |
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} |
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if ( ++p != pe ) |
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goto _resume; |
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_test_eof: {} |
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if ( p == eof ) |
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{ |
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if ( _khmer_syllable_machine_eof_trans[cs] > 0 ) { |
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_trans = _khmer_syllable_machine_eof_trans[cs] - 1; |
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goto _eof_trans; |
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} |
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} |
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} |
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#line 108 "hb-ot-shape-complex-khmer-machine.rl" |
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} |
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#endif /* HB_OT_SHAPE_COMPLEX_KHMER_MACHINE_HH */
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