Re: Break out of program in interpreter

[Jorge <xxopxe@...>]

On 05/14/2013 10:31 AM, Jose Torre-Bueno wrote:
> Yes that does work.  However
>
> while true do os.execute('echo hello world') end
>
> cannot be stopped with ^C.  The only way to end it is to kill the whole terminal session.


What is hapening isthat the ^C is caught by the shell running inside 
os.exec(), so os.exec returns and the lua program loops again. You have 
to either have a lot of luck so the ^C arrives while the control is in 
lua code, or catch the return from os.exec and detect it was canceled.
For example, in Lua 5.1:

while true do
	if os.execute('echo hello world') ~= 0 then return end
end


Jorge