Re: Using part of a Lua script from C

[Evan Burkitt <evanb@...>]

On 08/03/2009 21:59, Wesley Smith wrote:
> Obviously you could do some basic string matching on the script to
> clip it to the appropriate length.  You could also do something pretty
> basic like:
>
> // in C
> lua_pushboolean(L, 1);
> lua_setglobal(L, "global_var_set_by_app")
> ...
> --code to allow the script to run stand-alone:
> if(not global_var_set_by_app) then
>     a = 1
>     b = 2
>     filter(a,b)
> end
Processing the script to remove any non-functions was my original 
thought; I wanted to be sure I wasn't missing any easier fix. I like the 
if (not...) idea too, especially for development and testing.

For "production", though (whatever that ends up being), explicitly 
preventing execution by extracting only the functions looks like the 
ultimate solution.

I appreciate your help. Thanks, too, to Hans Elbers and Jerome Vuarand 
for their variations of the "am-I-standalone" test idea.

-evan