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author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2018-01-31 01:11:59 +0000 |
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committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2018-01-31 01:11:59 +0000 |
commit | c3f11193fa94d266d32f36ebd008d478fa2671e0 (patch) | |
tree | 3b13b901d86aa7c323cb407835ac8cb9397cd364 /Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-khmer-machine.rl | |
parent | f223ad48afe014b1314fd294f0e099232f46b63e (diff) |
harfbuzz 1.7.5
git-svn-id: svn://tug.org/texlive/trunk@46498 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-khmer-machine.rl')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-khmer-machine.rl | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-khmer-machine.rl b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-khmer-machine.rl new file mode 100644 index 00000000000..8b00c37f093 --- /dev/null +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-khmer-machine.rl @@ -0,0 +1,107 @@ +/* + * Copyright © 2011,2012 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 + */ + +#ifndef HB_OT_SHAPE_COMPLEX_KHMER_MACHINE_HH +#define HB_OT_SHAPE_COMPLEX_KHMER_MACHINE_HH + +#include "hb-private.hh" + +%%{ + machine khmer_syllable_machine; + alphtype unsigned char; + write data; +}%% + +%%{ + +# Same order as enum khmer_category_t. Not sure how to avoid duplication. +C = 1; +V = 2; +N = 3; +ZWNJ = 5; +ZWJ = 6; +M = 7; +SM = 8; +PLACEHOLDER = 11; +DOTTEDCIRCLE = 12; +RS = 13; +Coeng = 14; +Ra = 16; + +c = (C | Ra | V); # is_consonant +n = ((ZWNJ?.RS)? (N.N?)?); # is_consonant_modifier +z = ZWJ|ZWNJ; # is_joiner + +cn = c.n?; +matra_group = z?.M.N?; +syllable_tail = (SM.SM?)?; + + +broken_cluster = n? (Coeng.cn)* matra_group* (Coeng.cn)? syllable_tail; +consonant_syllable = (c|PLACEHOLDER|DOTTEDCIRCLE) broken_cluster; +other = any; + +main := |* + consonant_syllable => { found_syllable (consonant_syllable); }; + broken_cluster => { found_syllable (broken_cluster); }; + other => { found_syllable (non_khmer_cluster); }; +*|; + + +}%% + +#define found_syllable(syllable_type) \ + HB_STMT_START { \ + if (0) fprintf (stderr, "syllable %d..%d %s\n", last, p+1, #syllable_type); \ + for (unsigned int i = last; i < p+1; i++) \ + info[i].syllable() = (syllable_serial << 4) | syllable_type; \ + last = p+1; \ + syllable_serial++; \ + if (unlikely (syllable_serial == 16)) syllable_serial = 1; \ + } HB_STMT_END + +static void +find_syllables (hb_buffer_t *buffer) +{ + unsigned int p, pe, eof, ts HB_UNUSED, te HB_UNUSED, act HB_UNUSED; + int cs; + hb_glyph_info_t *info = buffer->info; + %%{ + write init; + getkey info[p].khmer_category(); + }%% + + p = 0; + pe = eof = buffer->len; + + unsigned int last = 0; + unsigned int syllable_serial = 1; + %%{ + write exec; + }%% +} + +#endif /* HB_OT_SHAPE_COMPLEX_KHMER_MACHINE_HH */ |