Re: [Caml-list] [Question] Loading .ml in memory to interact with them.

[paul.lachat@edu.univ-fcomte.fr]

I've tried :

In one shell :
ocaml < /tmp/pipe_in > /tmp/pipe_out

In another shell :

tail -f /tmp/pipe_out &

cat << EOF > /tmp/pipe_in
heredoc> 1+1;;
heredoc> let x = 10;;
heredoc> let y = 15;;
heredoc> x;;
heredoc> y;;
heredoc> EOF

(feedback of tail)

        OCaml version 4.03.0                                                 

# - : int = 2
# val x : int = 10
# val y : int = 15
# - : int = 10
# - : int = 15
# 

____

But that's not what I want.
I want to be able to have this kind of logic :

1- Launch the ocaml toplevel.

2- The toplevel wait an instruction.

3- Send one instruction.

4- Get the result of the instruction.

5- Go back to 2- until we send "#quit;;".

I know that when you type ctrl-d in the toplevel it stop.
And that ctrl-d is the end-of-file 'keystroke'.

But I would like, if possible, to have a persistant tolevel process running.
So when I load a file via the #use ".ml";; directive, I can after that, and at any time,
call function of the .ml and get the result display by the toplevel.

It would be better than always re-read the file to get the result of a function (for example).