hb_font_get_user_data
hb_font_get_variation_glyph
hb_font_get_variation_glyph_func_t
+hb_font_get_var_coords_design
hb_font_get_var_coords_normalized
hb_font_glyph_from_string
hb_font_glyph_to_string
hb_ft_font_create_referenced
hb_ft_font_changed
hb_ft_font_get_face
+hb_ft_font_lock_face
+hb_ft_font_unlock_face
hb_ft_font_set_load_flags
hb_ft_font_get_load_flags
hb_ft_font_set_funcs
HB_OT_TAG_GSUB
HB_OT_TAG_JSTF
hb_ot_layout_baseline_tag_t
+hb_ot_layout_closure_lookups
+hb_ot_layout_closure_features
hb_ot_layout_collect_lookups
hb_ot_layout_collect_features
hb_ot_layout_feature_get_characters