YESEXPR 521 ext/standard/string.c #ifdef YESEXPR YESEXPR 522 ext/standard/string.c REGISTER_NL_LANGINFO_CONSTANT(YESEXPR); YESEXPR 696 ext/standard/string.c #ifdef YESEXPR YESEXPR 697 ext/standard/string.c case YESEXPR: