static void newbox (lua_State *L) {
UBox *box = (UBox *)lua_newuserdatauv(L, sizeof(UBox), 0);
box->box = NULL;
box->bsize = 0;
if (luaL_newmetatable(L, "_UBOX*")) /* creating metatable? */
luaL_setfuncs(L, boxmt, 0); /* set its metamethods */
lua_setmetatable(L, -2);
}
static int gmatch (lua_State *L) {
size_t ls, lp;
const char *s = luaL_checklstring(L, 1, &ls);
const char *p = luaL_checklstring(L, 2, &lp);
GMatchState *gm;
lua_settop(L, 2); /* keep them on closure to avoid being collected */
gm = (GMatchState *)lua_newuserdatauv(L, sizeof(GMatchState), 0);
prepstate(&gm->ms, L, s, ls, p, lp);
gm->src = s; gm->p = p; gm->lastmatch = NULL;
lua_pushcclosure(L, gmatch_aux, 3);
return 1;
}
LUALIB_API lua_State *luaL_newstate (void) {
lua_State *L = lua_newstate(l_alloc, NULL);
if (L) {
int *previoustocont; /* space for warning state */
lua_atpanic(L, &panic);
previoustocont = (int *)lua_newuserdatauv(L, sizeof(int), 0);
luaL_ref(L, LUA_REGISTRYINDEX); /* make sure it won't be collected */
*previoustocont = 0; /* next message starts a new warning */
lua_setwarnf(L, warnf, previoustocont);
}
return L;
}
