Re: Lua line numbers when concatenating multiple lua chunks

[Michael Abbott <mabster@...>]

Luiz Henrique de Figueiredo wrote:
> > I've been playing around with prefixing the scripts I load with startup 
> > code.  This I've been doing with lua_load() and chunks.  I've come 
> > across the problem that if I want to flag a specific error in the code 
> > that the user wrote I want to be able to tell them in which line number 
> > in /their/ code this error occurred on.
> >
> > Is the only way to do this to scan the characters for \r?\n before they 
> > reach lua_load()?
>
> Unfortunately, I cannot see a better way. Just be careful to translate \r and
> \n to a space, instead of deleting them...
>
> > Also, if this is the case, is there some means of 
> > solving this when loading a pre-compiled lua chunk?
>
>
> How so? Text and pre-compiled chunks cannot be mixed. The code that loads
> pre-compiled chunks stops as soon as it loads the chunk; it loads only one
> chunk. Unless you're pretty intimate with the format of pre-compiled chunks,
> there's not much you can change. And even if you are, changing something will
> require code equivalent to loading the pre-compiled chunk...

Thanks!  After a bit of thinking of the ramifications of all this I 
started looking at what functionality I needed to prefix.  At the moment 
 it appears that everything can be done with C code.  It's mostly just 
table accesses, etc.

And hopefully once it's all done I'll be able to support both textual 
and precompiled chunks, yay :)

Thanks again,
- Mab