Re: Jim's wish list: gd library interface

[Todd Larason <jtl@molehill.org>]

On 981024, Russell McManus wrote:
> I also want to port functional postscript (cool system), but that's
> after sunet on my list.  I hope someone beats me to it.

I've started looking at that, but not only is my time limited, so is my
skill/knowledge (at least one of those two, hopefully just the one that's
easier to fix).

http://www.mit.edu/people/wandy/fps/porting.html lists porting issues the
authors are aware of; most of these looks fairly straightforward.

Working from the top:

  R5RS features: We use R5RS multi-value return forms: VALUES,
                 CALL-WITH-VALUES, and RECEIVE.

I can't find RECEIVE in r5rs; maybe it was in an earlier draft but removed
from the final?  In any case, FPS has a macro defining it in terms of
call-with-values.

Guile's (ice-9 syncase) has call-with-values and values procedures defined
that look like they might do the right thing; what I don't understand is
how to use them.  They're (define)d, not (define-public)d, so as far as
I understand, they can only be used from the syncase module; they're not
used there though, so I expect I'm missing something in the guile
module system.  Anyone have some pointers?