#lang racket/base (require mzlib/pconvert racket/pretty lang/private/set-result) (provide configure) (define (configure options) ;; Set print-convert options: (booleans-as-true/false #t) (constructor-style-printing #t) (abbreviate-cons-as-list (memq 'abbreviate-cons-as-list options)) (current-print-convert-hook (let ([ph (current-print-convert-hook)]) (lambda (val basic sub) (cond [(equal? val set!-result) '(void)] [else (ph val basic sub)])))) (use-named/undefined-handler (lambda (x) (and (memq 'use-function-output-syntax options) (procedure? x) (object-name x)))) (named/undefined-handler (lambda (x) (string->symbol (format "function:~a" (object-name x))))) ;; Set pretty-print options: (pretty-print-show-inexactness #t) (pretty-print-exact-as-decimal #t) ;; Set print handlers to use print-convert and pretty-print: (current-print (lambda (v) (unless (void? v) (pretty-print (print-convert v))))) (let ([orig (global-port-print-handler)]) (global-port-print-handler (lambda (val port [depth 0]) (parameterize ([global-port-print-handler orig]) (let ([val (print-convert val)]) (parameterize ([pretty-print-columns 'infinity]) (pretty-print val port depth))))))))