1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/harfbuzz/src/hb-ot-shape-complex-myanmar-machine.rl Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,128 @@
1.4 +/*
1.5 + * Copyright © 2011,2012 Google, Inc.
1.6 + *
1.7 + * This is part of HarfBuzz, a text shaping library.
1.8 + *
1.9 + * Permission is hereby granted, without written agreement and without
1.10 + * license or royalty fees, to use, copy, modify, and distribute this
1.11 + * software and its documentation for any purpose, provided that the
1.12 + * above copyright notice and the following two paragraphs appear in
1.13 + * all copies of this software.
1.14 + *
1.15 + * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
1.16 + * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
1.17 + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
1.18 + * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
1.19 + * DAMAGE.
1.20 + *
1.21 + * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
1.22 + * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
1.23 + * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
1.24 + * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
1.25 + * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
1.26 + *
1.27 + * Google Author(s): Behdad Esfahbod
1.28 + */
1.29 +
1.30 +#ifndef HB_OT_SHAPE_COMPLEX_MYANMAR_MACHINE_HH
1.31 +#define HB_OT_SHAPE_COMPLEX_MYANMAR_MACHINE_HH
1.32 +
1.33 +#include "hb-private.hh"
1.34 +
1.35 +%%{
1.36 + machine myanmar_syllable_machine;
1.37 + alphtype unsigned char;
1.38 + write data;
1.39 +}%%
1.40 +
1.41 +%%{
1.42 +
1.43 +# Same order as enum myanmar_category_t. Not sure how to avoid duplication.
1.44 +A = 10;
1.45 +As = 18;
1.46 +C = 1;
1.47 +D = 19;
1.48 +D0 = 20;
1.49 +DB = 3;
1.50 +GB = 12;
1.51 +H = 4;
1.52 +IV = 2;
1.53 +MH = 21;
1.54 +MR = 22;
1.55 +MW = 23;
1.56 +MY = 24;
1.57 +PT = 25;
1.58 +V = 8;
1.59 +VAbv = 26;
1.60 +VBlw = 27;
1.61 +VPre = 28;
1.62 +VPst = 29;
1.63 +VS = 30;
1.64 +ZWJ = 6;
1.65 +ZWNJ = 5;
1.66 +Ra = 16;
1.67 +P = 31;
1.68 +
1.69 +j = ZWJ|ZWNJ; # Joiners
1.70 +k = (Ra As H); # Kinzi
1.71 +
1.72 +c = C|Ra; # is_consonant
1.73 +
1.74 +medial_group = MY? MR? ((MW MH? | MH) As?)?;
1.75 +main_vowel_group = VPre* VAbv* VBlw* A* (DB As?)?;
1.76 +post_vowel_group = VPst MH? As* VAbv* A* (DB As?)?;
1.77 +pwo_tone_group = PT A* DB? As?;
1.78 +
1.79 +complex_syllable_tail = As* medial_group main_vowel_group post_vowel_group* pwo_tone_group* V* j?;
1.80 +syllable_tail = (H | complex_syllable_tail);
1.81 +
1.82 +consonant_syllable = k? (c|IV|D|GB).VS? (H (c|IV).VS?)* syllable_tail;
1.83 +punctuation_cluster = P V;
1.84 +broken_cluster = k? VS? syllable_tail;
1.85 +other = any;
1.86 +
1.87 +main := |*
1.88 + consonant_syllable => { found_syllable (consonant_syllable); };
1.89 + j => { found_syllable (non_myanmar_cluster); };
1.90 + punctuation_cluster => { found_syllable (punctuation_cluster); };
1.91 + broken_cluster => { found_syllable (broken_cluster); };
1.92 + other => { found_syllable (non_myanmar_cluster); };
1.93 +*|;
1.94 +
1.95 +
1.96 +}%%
1.97 +
1.98 +#define found_syllable(syllable_type) \
1.99 + HB_STMT_START { \
1.100 + if (0) fprintf (stderr, "syllable %d..%d %s\n", last, p+1, #syllable_type); \
1.101 + for (unsigned int i = last; i < p+1; i++) \
1.102 + info[i].syllable() = (syllable_serial << 4) | syllable_type; \
1.103 + last = p+1; \
1.104 + syllable_serial++; \
1.105 + if (unlikely (syllable_serial == 16)) syllable_serial = 1; \
1.106 + } HB_STMT_END
1.107 +
1.108 +static void
1.109 +find_syllables (hb_buffer_t *buffer)
1.110 +{
1.111 + unsigned int p, pe, eof, ts HB_UNUSED, te HB_UNUSED, act HB_UNUSED;
1.112 + int cs;
1.113 + hb_glyph_info_t *info = buffer->info;
1.114 + %%{
1.115 + write init;
1.116 + getkey info[p].myanmar_category();
1.117 + }%%
1.118 +
1.119 + p = 0;
1.120 + pe = eof = buffer->len;
1.121 +
1.122 + unsigned int last = 0;
1.123 + unsigned int syllable_serial = 1;
1.124 + %%{
1.125 + write exec;
1.126 + }%%
1.127 +}
1.128 +
1.129 +#undef found_syllable
1.130 +
1.131 +#endif /* HB_OT_SHAPE_COMPLEX_MYANMAR_MACHINE_HH */
