[luatex] Allow piped input

[Henri Menke]

On 14/06/19 10:47 PM, luigi scarso wrote:
> On Thu, Jun 13, 2019 at 5:53 AM Henri Menke <henrimenke at gmail.com> wrote:
> 
>> Dear devs,
>>
>> It would be great if LuaTeX accepted piped input.  Currently a command
>> like
>>
>>     texlua <(echo 'print "Hello"')
>>
>> fails with an error like "Script file /dev/fd/63 not found".  I have
>> attached a simple patch which would eliminate the failure.
>>
>> Cheers, Henri
>>
> 
> Does it work also in Windows ?
> (I think so )
> 

LuaTeX uses sys/stat.h which requires POSIX, so if running in a POSIX
environment (e.g. Cygwin) it should work.  Natively I don't think it
works.  (does Windows even have pipes?)  I can't test it because I don't
have a Windows machine.

Cheers, Henri