RE: lua_pcall

[RLake@...]

> It seems to me that it would be simpler to set
a global error handling 
> function than to specify it for every call to lua_pcall?

You can just put the error function on the stack once,
and then use it
in each call to lua_pcall. It does not get consumed
by lua_pcall.

On the other hand, if you have a series of pcalls
with the same error
function, it is quite possible that you can refactor
that to a single
pcall, which wraps the function which does the series
of calls.

This is particularly useful if the purpose of the
pcall is simply
to hide the end of the call stack, or add extra information
to it
(like the position in an input file, for example.)