hb_icu_get_unicode_funcs

    406 static hb_script_t codePointToScript(hb_codepoint_t codepoint) {
    407     static hb_unicode_funcs_t* u = 0;
    408     if (!u) {
    409         u = hb_icu_get_unicode_funcs();
    410     }
    411     return hb_unicode_script(u, codepoint);
    412 }

    423 hb_script_t
    424 hb_unicode_script (hb_unicode_funcs_t *ufuncs,
    425 		   hb_codepoint_t unicode);

    347 hb_unicode_funcs_t *
    348 hb_icu_get_unicode_funcs (void)
    349 {
    350   static const hb_unicode_funcs_t _hb_icu_unicode_funcs = {
    351     HB_OBJECT_HEADER_STATIC,
    352 
    353     NULL, /* parent */
    354     true, /* immutable */
    355     {
    356 #define HB_UNICODE_FUNC_IMPLEMENT(name) hb_icu_unicode_##name,
    357       HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
    358 #undef HB_UNICODE_FUNC_IMPLEMENT
    359     }
    360   };
    361 
    362 #if U_ICU_VERSION_MAJOR_NUM >= 49
    363   if (!hb_atomic_ptr_get (&normalizer)) {
    364     UErrorCode icu_err = U_ZERO_ERROR;
    365     /* We ignore failure in getNFCInstace(). */
    366     hb_atomic_ptr_cmpexch (&normalizer, NULL, unorm2_getNFCInstance (&icu_err));
    367   }
    368 #endif
    369   return const_cast<hb_unicode_funcs_t *> (&_hb_icu_unicode_funcs);
    370 }

     44 #define HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS \
     45   HB_UNICODE_FUNC_IMPLEMENT (combining_class) \
     46   HB_UNICODE_FUNC_IMPLEMENT (eastasian_width) \
     47   HB_UNICODE_FUNC_IMPLEMENT (general_category) \
     48   HB_UNICODE_FUNC_IMPLEMENT (mirroring) \
     49   HB_UNICODE_FUNC_IMPLEMENT (script) \
     50   HB_UNICODE_FUNC_IMPLEMENT (compose) \
     51   HB_UNICODE_FUNC_IMPLEMENT (decompose) \
     52   HB_UNICODE_FUNC_IMPLEMENT (decompose_compatibility) \
     53   /* ^--- Add new callbacks here */