63 lines
1.2 KiB
AppleScript
63 lines
1.2 KiB
AppleScript
-- nObjects Constructor -> Int -> [Object]
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on nObjects(f, n)
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map(f, range(1, n))
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end nObjects
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-- TEST
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on run
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-- someConstructor :: a -> Int -> b
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script someConstructor
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on lambda(_, i)
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{index:i}
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end lambda
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end script
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nObjects(someConstructor, 6)
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--> {{index:1}, {index:2}, {index:3}, {index:4}, {index:5}, {index:6}}
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end run
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-- GENERIC FUNCTIONS -----------------------------------------------------------
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-- map :: (a -> b) -> [a] -> [b]
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on map(f, xs)
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tell mReturn(f)
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set lng to length of xs
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set lst to {}
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repeat with i from 1 to lng
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set end of lst to lambda(item i of xs, i, xs)
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end repeat
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return lst
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end tell
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end map
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-- Lift 2nd class handler function into 1st class script wrapper
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-- mReturn :: Handler -> Script
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on mReturn(f)
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if class of f is script then
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f
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else
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script
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property lambda : f
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end script
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end if
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end mReturn
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-- range :: Int -> Int -> [Int]
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on range(m, n)
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if n < m then
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set d to -1
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else
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set d to 1
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end if
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set lst to {}
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repeat with i from m to n by d
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set end of lst to i
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end repeat
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return lst
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end range
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