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On Fri, Jan 7, 2011 at 11:10, Roberto Ierusalimschy
<> wrote:
>> To pass these tests on Lua-5.1.4 I use a modified version of the patch
>> proposed by Duck in
> Do you know why this works?
> -- Roberto

On my Linux box (Ubuntu-9.04 x86 32 bits) redirection does not work
(it echoes input lines) but pipe "cat file | lua ...." works fine.

I guess that in the case of a pipe, shell forks two processes - one
for 'cat' another for Lua. Somehow, child process running Lua fools
readline into thinking that it is not connected to an interactive tty
and it stops echoing its input.