125 lines
2.6 KiB
AppleScript
125 lines
2.6 KiB
AppleScript
-- MULTIPLICATION TABLE FOR INTEGERS M TO N
|
|
|
|
-- table :: Int -> Int -> [[String]]
|
|
on table(m, n)
|
|
|
|
set axis to range(m, n)
|
|
|
|
script column
|
|
on lambda(x)
|
|
script row
|
|
on lambda(y)
|
|
if y < x then
|
|
{""}
|
|
else
|
|
{(x * y) as text}
|
|
end if
|
|
end lambda
|
|
end script
|
|
|
|
{x & map(row, axis)}
|
|
end lambda
|
|
end script
|
|
|
|
{{"x"} & axis} & concatMap(column, axis)
|
|
end table
|
|
|
|
|
|
on run
|
|
|
|
tableText(table(1, 12))
|
|
|
|
end run
|
|
|
|
|
|
-- TABLE DISPLAY
|
|
|
|
-- tableText :: [[String]] -> String
|
|
on tableText(lstTable)
|
|
script tableLine
|
|
on lambda(lstLine)
|
|
script tableCell
|
|
on lambda(cell)
|
|
(characters -4 thru -1 of (" " & cell)) as string
|
|
end lambda
|
|
end script
|
|
|
|
intercalate(" ", map(tableCell, lstLine))
|
|
end lambda
|
|
end script
|
|
|
|
intercalate(linefeed, map(tableLine, lstTable))
|
|
end tableText
|
|
|
|
|
|
-- GENERIC LIBRARY FUNCTIONS
|
|
|
|
-- concatMap :: (a -> [b]) -> [a] -> [b]
|
|
on concatMap(f, xs)
|
|
script append
|
|
on lambda(a, b)
|
|
a & b
|
|
end lambda
|
|
end script
|
|
|
|
foldl(append, {}, map(f, xs))
|
|
end concatMap
|
|
|
|
-- foldl :: (a -> b -> a) -> a -> [b] -> a
|
|
on foldl(f, startValue, xs)
|
|
tell mReturn(f)
|
|
set v to startValue
|
|
set lng to length of xs
|
|
repeat with i from 1 to lng
|
|
set v to lambda(v, item i of xs, i, xs)
|
|
end repeat
|
|
return v
|
|
end tell
|
|
end foldl
|
|
|
|
-- map :: (a -> b) -> [a] -> [b]
|
|
on map(f, xs)
|
|
tell mReturn(f)
|
|
set lng to length of xs
|
|
set lst to {}
|
|
repeat with i from 1 to lng
|
|
set end of lst to lambda(item i of xs, i, xs)
|
|
end repeat
|
|
return lst
|
|
end tell
|
|
end map
|
|
|
|
-- Lift 2nd class handler function into 1st class script wrapper
|
|
-- mReturn :: Handler -> Script
|
|
on mReturn(f)
|
|
if class of f is script then
|
|
f
|
|
else
|
|
script
|
|
property lambda : f
|
|
end script
|
|
end if
|
|
end mReturn
|
|
|
|
-- range :: Int -> Int -> [Int]
|
|
on range(m, n)
|
|
if n < m then
|
|
set d to -1
|
|
else
|
|
set d to 1
|
|
end if
|
|
set lst to {}
|
|
repeat with i from m to n by d
|
|
set end of lst to i
|
|
end repeat
|
|
return lst
|
|
end range
|
|
|
|
-- intercalate :: Text -> [Text] -> Text
|
|
on intercalate(strText, lstText)
|
|
set {dlm, my text item delimiters} to {my text item delimiters, strText}
|
|
set strJoined to lstText as text
|
|
set my text item delimiters to dlm
|
|
return strJoined
|
|
end intercalate
|