127 lines
2.9 KiB
AppleScript
127 lines
2.9 KiB
AppleScript
tableText(multTable(1, 12))
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-- multTable :: Int -> [[String]]
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on multTable(m, n)
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set axis to enumFromTo(m, n)
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script column
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on |λ|(x)
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script row
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on |λ|(y)
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if y < x then
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""
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else
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(x * y) as string
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end if
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end |λ|
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end script
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{x & map(row, axis)}
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end |λ|
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end script
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{{"x"} & axis} & concatMap(column, axis)
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end multTable
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-- TABLE DISPLAY --------------------------------------------------------------
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-- tableText :: [[Int]] -> String
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on tableText(lstTable)
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script tableLine
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on |λ|(lstLine)
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script tableCell
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on |λ|(int)
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(characters -4 thru -1 of (" " & int)) as string
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end |λ|
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end script
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intercalate(" ", map(tableCell, lstLine))
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end |λ|
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end script
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intercalate(linefeed, map(tableLine, lstTable))
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end tableText
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-- GENERIC FUNCTIONS ----------------------------------------------------------
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-- concatMap :: (a -> [b]) -> [a] -> [b]
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on concatMap(f, xs)
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set lst to {}
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set lng to length of xs
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tell mReturn(f)
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repeat with i from 1 to lng
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set lst to (lst & |λ|(item i of xs, i, xs))
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end repeat
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end tell
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return lst
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end concatMap
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-- enumFromTo :: Int -> Int -> [Int]
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on enumFromTo(m, n)
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if m > n 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 enumFromTo
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-- foldl :: (a -> b -> a) -> a -> [b] -> a
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on foldl(f, startValue, xs)
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tell mReturn(f)
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set v to startValue
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set lng to length of xs
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repeat with i from 1 to lng
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set v to |λ|(v, item i of xs, i, xs)
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end repeat
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return v
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end tell
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end foldl
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-- intercalate :: Text -> [Text] -> Text
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on intercalate(strText, lstText)
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set {dlm, my text item delimiters} to {my text item delimiters, strText}
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set strJoined to lstText as text
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set my text item delimiters to dlm
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return strJoined
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end intercalate
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-- justifyRight :: Int -> Char -> Text -> Text
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on justifyRight(n, cFiller, strText)
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if n > length of strText then
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text -n thru -1 of ((replicate(n, cFiller) as text) & strText)
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else
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strText
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end if
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end justifyRight
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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 |λ|(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 |λ| : f
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end script
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end if
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end mReturn
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