29 righe
550 B
Scheme
29 righe
550 B
Scheme
(module util (curry applied thunk just perhaps compose-symbols)
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(import scheme)
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(import chicken.base)
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(import srfi-13)
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(define (curry fn a)
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(lambda (b)
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(fn a b)))
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(define (applied fn)
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(curry apply fn))
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(define-syntax thunk
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(syntax-rules ()
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((_ exp ...)
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(lambda () exp ...))))
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(define (just fn)
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(lambda args
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(fn)))
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(define (perhaps fn arg)
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(if arg
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(fn arg)
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arg))
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(define (compose-symbols . ln)
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(string->symbol (string-concatenate (intersperse (map symbol->string ln) "-")))))
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