Help with debug interface

["aircooledspeed" <cpercival@...>]

Hi, I am a new Lua user!

I hope to use this language to control batch image manipulation and 
cleanup program.  I will be calling my own functions that actually do 
the work.

One requirement is that I have a simple debugging interface to the 
used script.  Basically somthing like being able to break at a 
certain point, and show the names and contents of variables.  I 
realise I can do the breaking by using the line hook, and I can get a 
list of the variables (using lua_getlocal), but I don't know how to 
get their values.  Can anyone point me to a source of info on this 
subject or give me some pointers/examples?

Thanks,

Chris Percival