When doing (display obj), a nice representation is shown to the output. But is it possible to capture this representation to a string? I could use this to better handle debug information.
The closest I could get is to display the object to a .txt, and then read it back as a string:
(define (to-string obj)
(call-with-output-file "to-string.txt"
(lambda (output-port)
(display obj output-port)))
(call-with-input-file "to-string.txt"
(lambda (input-port)
(define str "")
(let loop ((x (read-char input-port)))
(if (not (eof-object? x))
(begin
(set! str (string-append str (string x)))
(loop (read-char input-port))))
str)))
)
(define obj (cons "test" (make-vector 3)))
(define str (to-string obj))
; str will contain "{test . #(0 0 0)}"
Found the answer thanks to @soegaard!
(define (to-string obj)
(define q (open-output-string))
(write obj q)
(get-output-string q)
)
(define obj (cons "test" (make-vector 3)))
(define str (to-string obj))
; str will contain ("test" . #(0 0 0))