24 lines
1.2 KiB
Plaintext
24 lines
1.2 KiB
Plaintext
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(let (
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foldr (let (helper (rec-lambda recurse (f z v i) (if (= i (len v)) z
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(f (idx v i) (recurse f z v (+ i 1))))))
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(lambda (f z v) (helper f z v 0)))
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empty_dict []
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put (lambda (m k v) (cons [k v] m))
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get-value-helper (rec-lambda recurse (dict key i) (if (>= i (len dict))
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(error (str key " not found in " dict))
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(if (= key (idx (idx dict i) 0))
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(idx (idx dict i) 1)
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(recurse dict key (+ i 1)))))
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get-value (lambda (dict key) (get-value-helper dict key 0))
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add-dict-to-env (let (helper (rec-lambda recurse (env dict i)
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(if (= i (len dict)) env
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(recurse (eval [ [vau '_ [(idx (idx dict i) 0)] [ [vau 'inner [] 'inner] ] ] (idx (idx dict i) 1) ] env) dict (+ i 1)))))
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(lambda (env dict) (helper env dict 0)))
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)
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(provide foldr empty_dict put get-value add-dict-to-env)
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)
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