#lang br/quicklang (define (read-syntax path port) (define args (port->lines port)) (define arg-datums (filter-not void? (format-datums '~a args))) (define module-datum `(module stacker-mod funstacker-demo (nestify null ,@arg-datums))) (datum->syntax #f module-datum)) (provide read-syntax) (define-macro (stacker-module-begin HANDLE-ARGS-EXPR) #'(#%module-begin (display (first HANDLE-ARGS-EXPR)))) (provide (rename-out [stacker-module-begin #%module-begin])) (require (for-syntax sugar/debug)) (define-macro-cases nestify [(nestify ARG0) #'ARG0] [(nestify ARG0 ARG1 ARG ...) #'(nestify (h3 ARG0 ARG1) ARG ...)]) (provide nestify) (define (h3 stack arg) (cond [(number? arg) (cons arg stack)] [(or (equal? * arg) (equal? + arg)) (define op-result (arg (first stack) (second stack))) (cons op-result (drop stack 2))])) (provide + * null) (module+ test (require rackunit) #;(check-equal? (with-output-to-string (λ () (dynamic-require "funstacker-test.rkt" #f))) "36"))