How to detect a MSWindows console in pure Lua

[Lorenzo Donati <lorenzodonatibz@...>]

Hi list!

Is there a simple way (stock Lua 5.1.4) to make a Lua script behave 
differently depending on whether it is executed in a MSWindows shell or not?

My problem is that I usually use simple scripts that need to be executed 
by double-clicking on them in MSW GUI, and to avoid the "dreaded black 
box" from disappearing I put:
io.read'*l'
at the end of the script to pause it until a return is pressed.

This works ok, but it gets in the way when I execute the same script 
inside an editor (SciTE), because it forces me to press return in the 
output pane every time the script is executed.

I wouldn't mind if it were only for debugging sessions (I would simply 
comment out the io.read line), but often I need to run the script in 
SciTE only to capture its output (for example, it's not the only use 
case), maybe multiple times at different times. So this commenting 
in/out sometimes is very annoying.

Please bear in mind that I'm looking for something very simple (I hope 
that a pure Lua solution exists), otherwise I could simply write a .cmd 
file to call the script and add a pause at the end, but I would really 
want to avoid that hassle, if possible.

I hope someone has found a clever trick that can solve my problem. :-)

Thanks in advance.

-- Lorenzo