1501   int opt = *((*fmt)++);  local
1503   switch (opt) {
1538     default: luaL_error(h->L, "invalid format option '%c'", opt);
1555   KOption opt = getoption(h, fmt, psize);  local
1557   if (opt == Kpaddalign) {  /* 'X' gets alignment from following option */
1561   if (align <= 1 || opt == Kchar)  /* need no alignment? */
1570   return opt;
1624     KOption opt = getdetails(&h, totalsize, &fmt, &size, &ntoalign);  local
1629     switch (opt) {
1723     KOption opt = getdetails(&h, totalsize, &fmt, &size, &ntoalign);  local
1724     luaL_argcheck(L, opt != Kstring && opt != Kzstr, 1,
1781     KOption opt = getdetails(&h, pos, &fmt, &size, &ntoalign);  local
1788     switch (opt) {
1792                                        (opt == Kint));