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55 lines
1.1 KiB
Scheme

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; ------------------------------------------------------------------------------
; literals
; ------------------------------------------------------------------------------
; integer
1
; float
3.14
; string
"jordan"
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; booleans. I don't like the look of #t and #f. They're dumb.
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#t
#f
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; ------------------------------------------------------------------------------
; basic math
; ------------------------------------------------------------------------------
(+ 1 1)
(- 1 1)
(* 1 1)
(/ 1 1)
; ------------------------------------------------------------------------------
; grammar
; ------------------------------------------------------------------------------
(define x 5)
x
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(set! x "steve")
x
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(quote (1 2 3))
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(if #f (quote "true-value") (quote "false-value"))
(if #t (quote "true-value") (quote "false-value"))
(define plusone (lambda (x) (+ x 1)))
(plusone 1)
((lambda (x) (* x x)) 4)
((lambda (x y) (+ x y)) 10 25)
(define make-account
(lambda (balance)
(lambda (amt)
(begin (set! balance (+ balance amt)) balance))))
(define a1 (make-account 100.00))
(a1 -20.00)