Re: wxLua at Sourceforge

[Rici Lake <lua@...>]

On 30-Nov-05, at 11:15 AM, Chris Marrin wrote:

> > It's a little disconcerting that lua_dostring and lua_dobuffer are
> > missing in 5.1. I hope there's a suitable replacement.
>
> There is. I will look at our source and let you know how we did it. 
> Again, I will do that later this morning...


if (luaL_loadbuffer(L, buff, lbuff, "Script foo") != 0) {
  /* syntax error. The error message is on top of the stack */
  // printf("%s\n", lua_tostring(L, -1));
  // lua_pop(L, 1);
  // or whatever
}
if (lua_pcall(L, 0, 0, 0) != 0) {
  /* runtime error. The error message is on top of the stack */
  // printf("%s\n", lua_tostring(L, -1));
  // lua_pop(L, 1);
  // or whatever
}

If you don't need to do error reporting at the point of call, you can 
throw the error message back to a pcall by just doing lua_error(L); in 
the first error clause, and replacing the lua_pcall with a lua_call. 
You can (and probably should) adjust the lua_pcall to provide a 
traceback function (the one in the debug library is handy) and/or 
provide arguments and receive return values.