> Try:
>let eval str =
>   Toploop.execute_phrase true Format.std_formatter
>      (!Toploop.parse_toplevel_phrase (Lexing.from_string str));;

I think he wants the variable to be bound into the current toplevel 
environment, which this doesn't do:

# b;;
Characters 0-1:
Unbound value b


# let eval str =
   Toploop.execute_phrase true Format.std_formatter
      (!Toploop.parse_toplevel_phrase (Lexing.from_string str));;
val eval : string -> bool = <fun>

# eval "let b = 1;;";;
val b : int = 1
- : bool = true

# b;;
Characters 0-1:
Unbound value b

# eval "b;;";;
Uncaught exception: Typecore.Error(_, _).


Unless I made a mistaken assumption?

I don't think there's any way to bind it into the current toplevel, but 
maybe you could dynamically load a module or hack something with #use or 
something.  I'm using 3.01 still, so maybe this is different on 3.04.

Chris


-------------------
To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners