Invoke an octave session via pipe

[Qianqian Fang]

Jaroslav Hajek wrote:
> When writing to a pipe you typically need to flush it afterwards to
> ensure the other process actually gets the data. It seems your code
> doesn't do it, so unless FreePascal flushes automatically, which I
> doubt, I would try that. No idea of the syntax in Pascal, but you'll
> probably figure out.
>
> regards
>
>   
hi Jaroslav

thank you for the reply. The TProcess class in free pascal does not have
"flush" function, which I believe it does it internally. Running this on
other programs worked fine.

What makes me curious is why my stdout reading did not give me the
octave prompt, i.e. "octave:1>"? looks like once octave get started,
it will start something else, which I can not access its stdout via
octave's stdout.