[Chicken-users] Module problems

[Matt Gushee]

Hello, all--

I am attempting to port a PDF generation library from PLT to Chicken (as 
described at some length in my 'Compiling w/ syntax-case' post). Most of 
the code is pretty portable, but the modules are proving to be a bit of 
a headache. I am wondering about several issues in this vein:

 * The original code has constructs like this:

     (provide (all-defined-except

   and

     (provide (all-from "pdf-util.ss")

   As far as I can tell from the docs, in syntax-case there is nothing
   comparable to the above--it appears that the only way to specify
   which symbols are exported is to explicitly list them. Is that right,
   or am I missing something?

 * There is a pdf-examples file which contains several sample programs
   using the pdf library. The PLT version says:

     (require (prefix pdf: "pdf.ss"))

   I am attempting to replicate that effect with:

     (import* (add-prefix pdf pdf))

   I'm not sure if that is supposed to work or not (Note to syntax-case
   maintainers: it would be helpful if your docs were more explicit as
   to which features of the syntax-case module system are supported).

   At any rate, when I load that into the REPL, I see:

     Warning: the following toplevel variables are referenced but \
       unbound:
     pdf:with-document-to-file (in ex1)
     pdf:with-page (in ex1)
     pdf:in-text-mode (in ex1)
     ... etc.

   And the imported symbols are unavailable, either with or without the
   prefix.

Anyone have suggestions?

--
Matt Gushee
: Bantam - lightweight file manager : matt.gushee.net/software/bantam/ :
: RASCL's A Simple Configuration Language :     matt.gushee.net/rascl/ :