40 lines
1016 B
Scheme
40 lines
1016 B
Scheme
;; A word generator designed for use in an interactive environment
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(define (fold-right f init seq)
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(if (null? seq)
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init
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(f (car seq)
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(fold-right f init (cdr seq)))))
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(define (pick-random lst)
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(let ((index (random (length lst))))
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(list-ref lst index)))
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(define (C)
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(pick-random '("s" "v" "ch" "j")))
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(define (V)
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(pick-random '("a" "e" "u")))
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(define (N)
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(pick-random '("n" "l")))
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(define (string->procs str)
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(define (randomize chars)
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(cond ((null? chars) '())
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((char=? (car chars) #\?)
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(if (zero? (random 2))
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(cons (cadr chars) (randomize (cddr chars)))
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(randomize (cddr chars))))
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(else (cons (car chars) (randomize (cdr chars))))))
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(map (lambda (c) (eval (string->symbol (string c))))
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(randomize (string->list str))))
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(define (generate-word template)
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(apply string-append
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(map (lambda (f) (f))
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(string->procs template))))
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;; Example: (generate-word "CVNVN")
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;; => "jenel"
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