Re: Feeding data into a lua state: in chunks?

[Bruce Wheaton <bruce@...>]

So far that seems to work perfectly, thanks. It's interesting that, since I accumulate strings outside the lua state, I can still run functions from other sources while the user is entering lines. Weird, but neat.

Thanks,

Bruce

On May 16, 2012, at 9:27 AM, Bruce Wheaton wrote:

> On May 15, 2012, at 3:55 PM, Luiz Henrique de Figueiredo wrote:
> 
>>> I think I'm looking for some insight on how lua.c, for example, passes fragments of lua in and can tell they aren't complete chunks yet.
>> 
>> See http://www.lua.org/source/5.2/lua.c.html#loadline
>> 
> Ok, thanks. I'm trying to get my head around it - new to lua and the stack etc. The way I see it, it accumulates lines, adding them together along with a newline between them. And it runs lua_loadbuffer on them?
> 
> The key, AFAICT, is the 'incomplete' function, which checks the status of the load buffer call, and looks for '<eof>' at the end of the status, in which case it buffers it.
> 
> Is that about right?
> 
> So if in my code I run loadbuffer (or luaL_loadstring) and check it's status, then only run pcall when there is not an <eof> I should be OK?
> 
> Is there some sort of reset for that? So if the user messes up I could start over, not get trapped evaluating a broken buffer for ever?
> 
> Bruce