OBACK_            166 ext/ereg/regex/debug.c 		case OBACK_:
OBACK_            287 ext/ereg/regex/engine.c 		case OBACK_:
OBACK_            525 ext/ereg/regex/engine.c 	case OBACK_:		/* the vilest depths */
OBACK_            864 ext/ereg/regex/engine.c 		case OBACK_:		/* ignored here */
OBACK_            515 ext/ereg/regex/regcomp.c 			EMIT(OBACK_, i);