Function luaL_checkoption

src/Chain/libraries/glua/lauxlib.cpp:356–366

*/

LUALIB_API int luaL_checkoption(lua_State *L, int arg, const char *def,
    const char *const lst[]) {
    const char *name = (def) ? luaL_optstring(L, arg, def) :
        luaL_checkstring(L, arg);
    int i;
    for (i = 0; lst[i]; i++)
        if (strcmp(lst[i], name) == 0)
            return i;
    return luaL_argerror(L, arg,
        lua_pushfstring(L, "invalid option '%s'", name));
}


LUALIB_API void luaL_checkstack(lua_State *L, int space, const char *msg) {