OP_EXACT4         332 ext/mbstring/oniguruma/regcomp.c       case 4:  op = OP_EXACT4; break;
OP_EXACT4        5680 ext/mbstring/oniguruma/regcomp.c   { OP_EXACT4,            "exact4",          ARG_SPECIAL },
OP_EXACT4        5875 ext/mbstring/oniguruma/regcomp.c     case OP_EXACT4:
OP_EXACT4        1485 ext/mbstring/oniguruma/regexec.c     case OP_EXACT4:  MOP_IN(OP_EXACT4);