import List
import Char

kotus = "sanat.xxmmll"

main = do
  ss <- readFile kotus >>= return . lines
  let ws = map analyse ss
  mapM putStrLn $ treat ws

treat = map mkRule . paradigms

mkRule ((pa,ex),nu) = 
  "  " ++ pos ++ pa ++ " : Str -> " ++ poss  ++ 
  "Forms -- " ++ show nu ++ " " ++ ex ++ "\n    = \\s ->  ;" 
 where
   (pos,poss) = if read (take 2 pa) < 52 then ("d","N") else ("c","V")

paradigms = map info . groupByFst . sort

info x = (last x, length x)
--info = last

groupByFst = groupBy (\ x y -> fst x == fst y)

-- <st><s>aaloe</s><t><tn>3</tn></t></st>
-- <st><s>vuoksi</s><hn>1</hn><t><tn>7</tn></t></st>
-- <st><s>visiitti</s><t><tn>5</tn><av>C</av></t></st>

analyse s = 
  let 
    rest = drop 7 s
    (word,end) = span (/='<') rest
    lst = drop 6 $ dropWhile (/='t') end
    (num,gr) = span isDigit lst
    para = (replicate (2 - length num) '0' ++ num) ++ ['A' | isPrefixOf "av" (drop 6 gr)]
  in  
  (para,word)

sub cs s = isPrefixOf cs s || isPrefixOf cs (drop 1 s)