OpenEuphoria

Program overlays

• Posted by Sabal Mike <MikeS at NOTATIONS.COM> Jan 26, 2001
• 512 views

I'm at a point right now where a certain feature of Euphoria could be very
useful if it existed.

Right now, if I want to run a different Euphoria program from within my Euphoria
program, I need to use system_exec("exw.....  This requires a second interpreter
to be opened, with a separate shell, separate console, etc.  And if I want to
pass full control over to the second program, I can't.  I have to add an abort(1)
statement after this line to release the current program.  This all works as far
as it goes, but it's not very elegant.

What I would like to see (I think it's been mentioned before) is something like
the following:

run_euphoria("Myprog2.ex","param1 param2 param3")

The interpreter would, upon processing this line, run the same cleanup routine
internally that abort() uses, but instead of terminating the interpreter,
re-initialize it with the new program and command-line options (second parameter
in the routine call).

I'd love to see a call_euphoria(...) routine where control returns to the
original calling program upon termination of the called program, but I imagine
that would be more complex and too hard to maintain.  I'd be happy with just the
first one.

If Rob has any religious objections to a run_euphoria statement, I suppose I
could continue to kludge along unelegantly .  I'd also like to get some
feedback from others whether or not they would find this kind of functionality
useful.  If it's just me, then forget it....

Michael J. Sabal
m_sabal at yahoo.com