Egisonの練習その3

EgisonでFizz Buzzを書いてみた。むー

(define $fizzbuzz'
  (lambda $x
    (match x (mod 15)
      {[,0 "FizzBuzz"]
       [(| ,3 ,6 ,9 ,12) "Fizz"]
       [(| ,5 ,10) "Buzz"]
       [_ x]})))
(define $fizzbuzz
  (map (fizzbuzz' $) (take 100 nats)))

> fizzbuzz
{1 2 "Fizz" 4 "Buzz" "Fizz" 7 8 "Fizz" "Buzz" 11 "Fizz" 13 14 "FizzBuzz" 16 17 "Fizz" 19 "Buzz" "Fizz" 22 23 "Fizz" "Buzz" 26 "Fizz" 28 29 "FizzBuzz" 31 32 "Fizz" 34 "Buzz" "Fizz" 37 38 "Fizz" "Buzz" 41 "Fizz" 43 44 "FizzBuzz" 46 47 "Fizz" 49 "Buzz" "Fizz" 52 53 "Fizz" "Buzz" 56 "Fizz" 58 59 "FizzBuzz" 61 62 "Fizz" 64 "Buzz" "Fizz" 67 68 "Fizz" "Buzz" 71 "Fizz" 73 74 "FizzBuzz" 76 77 "Fizz" 79 "Buzz" "Fizz" 82 83 "Fizz" "Buzz" 86 "Fizz" 88 89 "FizzBuzz" 91 92 "Fizz" 94 "Buzz" "Fizz" 97 98 "Fizz" "Buzz"}
>