- (filename (port-filename port))
- (line (port-line port))
- (lily-string (call-with-output-string
- (lambda (out)
- (let ((copycat
- (make-soft-port
- (vector #f #f #f
- (lambda ()
- (let ((x (read-char port)))
- (write-char x out)
- x)) #f)
- "r")))
- (set-port-filename! copycat filename)
- (do ((c (read-char port) (read-char port)))
- ((and (char=? c #\#)
- (char=? (peek-char port) #\}))
- ;; we stop when #} is encountered
- (read-char port))
- (write-char c out)
- ;; a #scheme or $scheme expression
- (if (or (char=? c #\#) (char=? c #\$))
- (let* ((p (ftell out))
- (expr
- (begin
- (set-port-line! copycat
- (port-line port))
- (set-port-column! copycat
- (port-column port))
- (if (char=? (peek-char port) #\@)
- (read-char copycat))
- (read copycat))))
- ;; kill unused lookahead, it has been
- ;; written out already
- (drain-input copycat)
- ;; only put symbols and non-quote
- ;; lists into closures -- constants
- ;; don't need lexical environments
- ;; for evaluation.
- (if (or (symbol? expr)
- (and (pair? expr)
- (not (eq? 'quote (car expr)))))
- (set! closures
- (cons `(cons ,p (lambda () ,expr))
- closures)))))))))))
+ (filename (port-filename port))
+ (line (port-line port))
+ (lily-string (call-with-output-string
+ (lambda (out)
+ (let ((copycat
+ (make-soft-port
+ (vector #f #f #f
+ (lambda ()
+ (let ((x (read-char port)))
+ (write-char x out)
+ x)) #f)
+ "r")))
+ (set-port-filename! copycat filename)
+ (do ((c (read-char port) (read-char port)))
+ ((and (char=? c #\#)
+ (char=? (peek-char port) #\}))
+ ;; we stop when #} is encountered
+ (read-char port))
+ (write-char c out)
+ ;; a #scheme or $scheme expression
+ (if (or (char=? c #\#) (char=? c #\$))
+ (let* ((p (ftell out))
+ (expr
+ (begin
+ (set-port-line! copycat
+ (port-line port))
+ (set-port-column! copycat
+ (port-column port))
+ (if (char=? (peek-char port) #\@)
+ (read-char copycat))
+ (read copycat))))
+ ;; kill unused lookahead, it has been
+ ;; written out already
+ (drain-input copycat)
+ ;; only put symbols and non-quote
+ ;; lists into closures -- constants
+ ;; don't need lexical environments
+ ;; for evaluation.
+ (if (or (symbol? expr)
+ (and (pair? expr)
+ (not (eq? 'quote (car expr)))))
+ (set! closures
+ (cons `(cons ,p (lambda () ,expr))
+ closures)))))))))))