ONIGERR_TOO_BIG_BACKREF_NUMBER  131 ext/mbstring/oniguruma/regerror.c   case ONIGERR_TOO_BIG_BACKREF_NUMBER:
ONIGERR_TOO_BIG_BACKREF_NUMBER  100 ext/mbstring/oniguruma/regposix.c     { ONIGERR_TOO_BIG_BACKREF_NUMBER,                     REG_ESUBREG },