[plt-scheme] syntax-rules version of this...

Ed Cavazos wrote:

> I have this macro called 'define-c-const' that is shorthand for doing
> the extraction:
> 
> ;; Macro: (define-c-const FOO)

You might have a look at

   http://www.cs.uvm.edu/~dvanhorn/c-syntax.ss
   http://www.cs.uvm.edu/~dvanhorn/c-syntax-transformer.ss

Basically, I have a function that maps a scheme symbol to a C enum symbol
(just upcase the symbol and replace hyphens with underscores) and a macro
`c-enum' built on top of that.

Eg.

(c-enum foo-bar) ~> ((c-lambda () int "___result = FOO_BAR;"))

And then some convenience macros are provided like:

(define-c-enums
  foo-bar
  bar-baz
  ...)

~>

(define foo-bar ((c-lambda () int "___result = FOO_BAR;")))
(define bar-baz ((c-lambda () int "___result = BAR_BAZ;")))
...

If you'd like to change the naming convention, simply replace the
scheme-symbol->c-enum-symbol function in c-syntax-transformer.ss.

I would appreciate any feedback you might have, Ed.

HTH

-d