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authorAkira Kakuto <kakuto@fuk.kindai.ac.jp>2018-01-31 01:11:59 +0000
committerAkira Kakuto <kakuto@fuk.kindai.ac.jp>2018-01-31 01:11:59 +0000
commitc3f11193fa94d266d32f36ebd008d478fa2671e0 (patch)
tree3b13b901d86aa7c323cb407835ac8cb9397cd364 /Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-khmer-machine.rl
parentf223ad48afe014b1314fd294f0e099232f46b63e (diff)
harfbuzz 1.7.5
git-svn-id: svn://tug.org/texlive/trunk@46498 c570f23f-e606-0410-a88d-b1316a301751
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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
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+++ 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 */