Suppose I make a "teachpack" that defines a macro:
#lang racket
...
(define-syntax (my-macro stx)
(syntax-case stx (->)
[(_ (func arg ...) -> rslt)
#`(check-expect (func arg ...) rslt)]))
(my-macro (+ 4 5) -> 10)
(test)
(provide my-macro)
Running this file works fine.
Now, how exactly do I make this macro available to programs written in
Beginning/Intermediate Student? Opening up a file in BSL level and
typing:
(require "my-macro.rkt")
(my-macro (+ 4 5) -> 9)
gives the error:
my-macro: bad syntax
This macro is a simplification of the real thing I'm working on, but
note that the arguments to this macro include name(s) of functions
defined in the BSL file. I though of maybe using
provide-higher-order-primitive, but it doesn't seem to work either.
--- nadeem
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