[Indic] Apply 'init' feature for Bengali
Error down from 20% to 7%.
diff --git a/src/hb-ot-shape-complex-indic.cc b/src/hb-ot-shape-complex-indic.cc
index 7e3851d..20e7ed7 100644
--- a/src/hb-ot-shape-complex-indic.cc
+++ b/src/hb-ot-shape-complex-indic.cc
@@ -25,6 +25,7 @@
*/
#include "hb-ot-shape-complex-indic-private.hh"
+#include "hb-ot-shape-private.hh"
static const struct indic_options_t
{
@@ -738,6 +739,20 @@
+ /* Apply 'init' to the Left Matra if it's a word start. */
+ if (info[start].indic_position () == POS_LEFT_MATRA &&
+ (!start ||
+ !(FLAG (_hb_glyph_info_get_general_category (&buffer->info[start - 1])) &
+ (FLAG (HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER) |
+ FLAG (HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER) |
+ FLAG (HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER) |
+ FLAG (HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER) |
+ FLAG (HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER) |
+ FLAG (HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK) |
+ FLAG (HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK) |
+ FLAG (HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK)))))
+ info[start].mask |= mask_array[INIT];
+
/* Finish off the clusters and go home! */
