2 * Copyright © 2011,2012,2013 Google, Inc.
4 * This is part of HarfBuzz, a text shaping library.
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
24 * Google Author(s): Behdad Esfahbod
27 #ifndef HB_OT_SHAPE_COMPLEX_SEA_MACHINE_HH
28 #define HB_OT_SHAPE_COMPLEX_SEA_MACHINE_HH
30 #include "hb-private.hh"
33 machine sea_syllable_machine;
34 alphtype unsigned char;
40 # Same order as enum sea_category_t. Not sure how to avoid duplication.
42 GB = 12; # Generic Base
44 IV = 2; # Independent Vowel
46 CM = 17; # Consonant Medial
54 syllable_tail = (VPre|VAbv|VBlw|VPst|H.C|CM|MR|T|A)*;
56 consonant_syllable = (C|IV|GB) syllable_tail;
57 broken_cluster = syllable_tail;
61 consonant_syllable => { found_syllable (consonant_syllable); };
62 broken_cluster => { found_syllable (broken_cluster); };
63 other => { found_syllable (non_sea_cluster); };
69 #define found_syllable(syllable_type) \
71 if (0) fprintf (stderr, "syllable %d..%d %s\n", last, p+1, #syllable_type); \
72 for (unsigned int i = last; i < p+1; i++) \
73 info[i].syllable() = (syllable_serial << 4) | syllable_type; \
76 if (unlikely (syllable_serial == 16)) syllable_serial = 1; \
80 find_syllables (hb_buffer_t *buffer)
82 unsigned int p, pe, eof, ts HB_UNUSED, te HB_UNUSED, act HB_UNUSED;
84 hb_glyph_info_t *info = buffer->info;
87 getkey info[p].sea_category();
91 pe = eof = buffer->len;
93 unsigned int last = 0;
94 unsigned int syllable_serial = 1;
100 #undef found_syllable
102 #endif /* HB_OT_SHAPE_COMPLEX_SEA_MACHINE_HH */