Re: Guile Redirection

[Pat Eyler <peyler@nortom.com>]

Colin,
I'm forwarding your message to a couple of mailing lists for better
responses than I could give you.
-pate
>>>>> "Colin" == Colin Fox <colinf@rogers.wave.ca> writes:

    Colin> I apologize beforehand if I've already bothered you with
    Colin> this.

    Colin> Embarassingly enough, I don't seem to have a copy of the
    Colin> letter I sent asking for help, so I don't remember if it
    Colin> was you that I asked.

    Colin> So here I am asking again...

    Colin> I'm writing a modeller and I want a Guile shell, in exactly
    Colin> the same manner that The Gimp has a SIOD shell. In fact,
    Colin> I've just completely ripped off their code & modified it to
    Colin> work with Guile instead of SIOD.

    Colin> I've got it almost completely done, with one last
    Colin> problem. I can't figure out how to capture the output of
    Colin> Guile and redirect it into my shell.

    Colin> This is what I'm doing (removing the error checks for
    Colin> clarity):

    Colin>     pipe (guile_output_pipe); guile_output = fdopen
    Colin> (guile_output_pipe [1], "w")); outp = scm_stdio_to_port
    Colin> ( guile_output, "w", "standard output" );
    Colin> scm_set_current_output_port( outp );

    Colin> and then, I'm telling GTK to capture the results with:

    Colin> 	cint.input_id = gdk_input_add (guile_output_pipe[0],
    Colin> GDK_INPUT_READ, guile_read, NULL);

    Colin> (guile_read is a callback meant to be called when there is
    Colin> input on guile_output_pipe[0]).

    Colin> Anyway, the callback never gets called. I may be doing
    Colin> something stupid or obvious wrong, or there may be
    Colin> something else I need to do.

    Colin> The scm_set_current_output_port() is certainly doing
    Colin> *something*, since if I don't call it, I get the right
    Colin> results on my command line. If I do call it, the guile
    Colin> stuff no longer prints to the command line.

    Colin> Unfortunately, I can't find any documentation on this
    Colin> subject. Can you help, or point me at docs or examples?

    Colin> -- Colin Fox Radical Entertainment Inc.  I speak only for
    Colin> myself.  colinf@rogers.wave.ca www.loonie.net/~cfox/