gui/gui-lib/framework/private/decode.rkt
2014-12-02 02:33:07 -05:00

20 lines
884 B
Racket

#lang racket/base
(require (for-syntax racket/base file/gunzip net/base64))
(provide (except-out (all-from-out racket/base) #%module-begin)
(rename-out [module-begin #%module-begin]))
(define-syntax (module-begin stx)
(syntax-case stx ()
[(_ x ...)
(andmap (lambda (x) (or (identifier? x) (integer? (syntax-e x))))
(syntax->list #'(x ...)))
(let* ([data (format "~a" (syntax->datum #'(x ...)))]
[data (substring data 1 (sub1 (string-length data)))]
[data (string->bytes/utf-8 data)]
[in (open-input-bytes (base64-decode data))]
[out (open-output-string)]
[out (begin (inflate in out) (get-output-string out))]
[exprs (read (open-input-string (string-append "(" out ")")))]
[exprs (datum->syntax stx exprs stx)])
#`(#%module-begin #,@exprs))]))