Roll HarfBuzz to 0.9.35

third_party/harfbuzz-ng/src/hb-ot-shape-complex-hangul.cc

 /*
  * Copyright © 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.
@@ skipping 41 matching lines @@
 
 static void
 collect_features_hangul (hb_ot_shape_planner_t *plan)
 {
   hb_ot_map_builder_t *map = &plan->map;
 
   for (unsigned int i = FIRST_HANGUL_FEATURE; i < HANGUL_FEATURE_COUNT; i++)
     map->add_feature (hangul_features[i], 1, F_NONE);
 }
 
+static void
+override_features_hangul (hb_ot_shape_planner_t *plan)
+{
+  /* Uniscribe does not apply 'calt' for Hangul, and certain fonts
+   * (Noto Sans CJK, Source Sans Han, etc) apply all of jamo lookups
+   * in calt, which is not desirable. */
+  plan->map.add_feature (HB_TAG('c','a','l','t'), 0, F_GLOBAL);
+}
+
 struct hangul_shape_plan_t
 {
   ASSERT_POD ();
 
   hb_mask_t mask_array[HANGUL_FEATURE_COUNT];
 };
 
 static void *
 data_create_hangul (const hb_ot_shape_plan_t *plan)
 {
@@ skipping 325 matching lines @@
   }
 
   HB_BUFFER_DEALLOCATE_VAR (buffer, hangul_shaping_feature);
 }
 
 
 const hb_ot_complex_shaper_t _hb_ot_complex_shaper_hangul =
 {
   "hangul",
   collect_features_hangul,
-  NULL, /* override_features */
+  override_features_hangul,
   data_create_hangul, /* data_create */
   data_destroy_hangul, /* data_destroy */
   preprocess_text_hangul,
   HB_OT_SHAPE_NORMALIZATION_MODE_NONE,
   NULL, /* decompose */
   NULL, /* compose */
   setup_masks_hangul, /* setup_masks */
   HB_OT_SHAPE_ZERO_WIDTH_MARKS_NONE,
   false, /* fallback_position */
 };