63 lines
1.1 KiB
AppleScript
63 lines
1.1 KiB
AppleScript
-- isNumString :: String -> Bool
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on isNumString(s)
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try
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if class of s is string then
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set c to class of (s as number)
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c is real or c is integer
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else
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false
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end if
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on error
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false
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end try
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end isNumString
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-- TEST
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on run
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map(isNumString, {3, 3.0, 3.5, "3.5", "3E8", "-3.5", "30", "three", three, four})
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--> {false, false, false, true, true, true, true, false, false, false}
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end run
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-- three :: () -> Int
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script three
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3
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end script
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-- four :: () -> Int
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on four()
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4
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end four
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-- GENERIC FUNCTIONS FOR TEST
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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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