Re: [NOOB] "remember" function
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- Subject: Re: [NOOB] "remember" function
- From: "Shane Lee" <shaneplee@...>
- Date: 2007年8月23日 14:48:51 -0500
On 8/23/07, Patrick Donnelly <batrick.donnelly@gmail.com> wrote:
> Sorry if that seems like nit picking but I found what you did incredibly odd.
Actually, that was like the tenth re-write I had to make before I got
the stupid thing working at all.
>
> Anyways, seeing your C code is necessary for us to help you I think.
> Just be sure to trim it to show only relevant portions.
Okay, but remember, you asked for it...
Here is the retrieval function...
--------------------C code snip--------------------
char *LUA_STR(lua_State *L) {
(void)L;
if (!L) {
warn("%s: Called by NULL Lua State!", __func__);
return (NULL);
}
char *ret = (char *)lua_tostring(L, -1);
return (ret);
}
-------------------C code snip---------------------
And here is a snippet from the function that passes the data and calls
the retrieval function:
--------------------C code snip--------------------
if (luaL_dofile(L, fl) != 0) {
warn("%s: Parsing Error for file '%s'", __func__, fl);
return (NULL);
}
lua_getglobal(L, fun);
if (Exists(a1)) { lua_pushstring(L, a1); }
if (Exists(a2)) { lua_pushstring(L, a2); }
if (Exists(a3)) { lua_pushstring(L, a3); }
if (Exists(a4)) { lua_pushstring(L, a4); }
/* call the function with 2 arguments, return 1 result */
lua_call(L, n, 1);
ret = LUA_STR(L);
lua_pop(L, 1);
return (ret);
-----------------------C code snip---------------------
I feel that I should also mention that pretty much everything else I
have tried works fine. I am able to call lua functions and parse the
results in the C ap with no problems so far.
-Shane