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format.rkt
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78 lines (61 loc) · 2.32 KB
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#lang racket/base
(displayln (format "~x" 1))
(displayln (format "~x" 50))
(displayln (format "~b" 37))
(displayln (format "~o" 37))
(displayln (format "~~"))
(displayln (format "~n"))
(displayln (format "~%"))
(displayln (format "~ hello"))
(displayln (format "~a" (void)))
(displayln (format "~s" (void)))
(displayln (format "~v" (void)))
(displayln (format "~a" 'apple))
(displayln (format "~s" 'apple))
(displayln (format "~v" 'apple))
(displayln (format "~a" '#:apple))
(displayln (format "~s" '#:apple))
(displayln (format "~v" '#:apple))
(displayln (format "~a" #f))
(displayln (format "~s" #f))
(displayln (format "~v" #f))
(displayln (format "~a" #t))
(displayln (format "~s" #t))
(displayln (format "~v" #t))
(displayln (format "~a" 135))
(displayln (format "~s" 135))
(displayln (format "~v" 135))
(displayln (format "~b" 135))
(displayln (format "~o" 135))
(displayln (format "~x" 135))
(displayln (format "~a" #\b))
(displayln (format "~s" #\b))
(displayln (format "~v" #\b))
(displayln (format "~a" #\tab))
(displayln (format "~s" #\tab))
(displayln (format "~v" #\tab))
(displayln (format "~a" "hello\tworld"))
(displayln (format "~s" "hello\tworld"))
(displayln (format "~v" "hello\tworld"))
(displayln (format "~a" (box "apple\tis a fruit")))
(displayln (format "~s" (box "apple\tis a fruit")))
(displayln (format "~v" (box "apple\tis a fruit")))
(displayln (format "~a" '(135 #\b "hello\tworld" (335 #\tab "hello\tworld"))))
(displayln (format "~s" '(135 #\b "hello\tworld" (335 #\tab "hello\tworld"))))
(displayln (format "~v" '(135 #\b "hello\tworld" (335 #\tab "hello\tworld"))))
; We are only checking the length of the output for hash,
; because the order is not guaranteed (and in fact different).
(displayln (string-length (format "~a" (hash "apple" 'red "banana" 'yellow))))
(displayln (string-length (format "~s" (hash "apple" 'red "banana" 'yellow))))
(displayln (string-length (format "~v" (hash "apple" 'red "banana" 'yellow))))
(displayln (format "~a" (vector "a" "b" "c")))
(displayln (format "~s" (vector "a" "b" "c")))
(displayln (format "~v" (vector "a" "b" "c")))
(displayln (format "~a" 'apple))
(displayln (format "~s" 'apple))
(displayln (format "~v" 'apple))
(define fn (λ () (void)))
(displayln (format "~a" fn))
(displayln (format "~s" fn))
(displayln (format "~v" fn))
(displayln (format "~a is ~x in hex" "15" 15))