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+/*
+ * Copyright © 2011,2012,2013 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_SEA_MACHINE_HH
+#define HB_OT_SHAPE_COMPLEX_SEA_MACHINE_HH
+
+#include "hb-private.hh"
+
+%%{
+ machine sea_syllable_machine;
+ alphtype unsigned char;
+ write data;
+}%%
+
+%%{
+
+# Same order as enum sea_category_t. Not sure how to avoid duplication.
+C = 1;
+GB = 12; # Generic Base
+H = 4; # Halant
+IV = 2; # Independent Vowel
+MR = 22; # Medial Ra
+CM = 17; # Consonant Medial
+VAbv = 26;
+VBlw = 27;
+VPre = 28;
+VPst = 29;
+T = 3; # Tone Marks
+A = 10; # Anusvara
+
+syllable_tail = (VPre|VAbv|VBlw|VPst|H.C|CM|MR|T|A)*;
+
+consonant_syllable = (C|IV|GB) syllable_tail;
+broken_cluster = syllable_tail;
+other = any;
+
+main := |*
+ consonant_syllable => { found_syllable (consonant_syllable); };
+ broken_cluster => { found_syllable (broken_cluster); };
+ other => { found_syllable (non_sea_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].sea_category();
+ }%%
+
+ p = 0;
+ pe = eof = buffer->len;
+
+ unsigned int last = 0;
+ unsigned int syllable_serial = 1;
+ %%{
+ write exec;
+ }%%
+}
+
+#undef found_syllable
+
+#endif /* HB_OT_SHAPE_COMPLEX_SEA_MACHINE_HH */