YESEXPR 518 ext/standard/string.c #ifdef YESEXPR YESEXPR 519 ext/standard/string.c REGISTER_NL_LANGINFO_CONSTANT(YESEXPR); YESEXPR 693 ext/standard/string.c #ifdef YESEXPR YESEXPR 694 ext/standard/string.c case YESEXPR: