REG_BADRPT
case REG_BADRPT:
SETERROR(REG_BADRPT);
(isdigit((uch)PEEK2()) || PEEK2() == ','), REG_BADRPT);
(void) REQUIRE(!wascaret, REG_BADRPT);
SETERROR(REG_BADRPT);
SETERROR(REG_BADRPT);
(void) REQUIRE(bc->nchain == 0, REG_BADRPT);
RERR(REG_BADRPT, "repetition-operator operand invalid"),
REG_BADRPT, "BADRPT",