Switch from Map to List

A lot faster than before!

Alea/Diceware.hs

@@ -1,35 +1,29 @@
 module Alea.Diceware where
 
-import qualified Data.Map as Map
+import Data.List  (intersect, elemIndex)
+import Data.Maybe (fromJust)
 import Alea.List
 
 -- Diceware dictionary type
-type Diceware = Map.Map Int String
-
--- Parse a line into a tuple
-parseLine :: String -> (Int, String)
-parseLine x =
-	(read a :: Int, b)
-	where
-		x' = split x ' '
-		(a, b) = (head x', last x')
+type Diceware = [String]
 
 -- Parse file content to a Diceware
 parseDiceware :: String -> Diceware
-parseDiceware x = (Map.fromList . map parseLine . lines) x
+parseDiceware x = map (last . split ' ') $ lines x
 
 -- Lookup word with dice index
 readDiceware :: Diceware -> Int -> String
-readDiceware d n =
-	show n ++ " -> " ++
-	case Map.lookup n d of
-		Just x ->  x
+readDiceware d n = show n ++ " -> " ++
+	case (undice n) of
+		Just x -> d !! x
 		Nothing -> "Does not exist"
 
 -- Lookup word with linear index
 readDiceware' :: Diceware -> Int -> String
-readDiceware' d n = (snd . (!!n) . Map.toList) d
+readDiceware' d n = d !! n
 
--- Size of Diceware (should be 2^5)
-size :: Diceware -> Int
-size = Map.size
+-- Dice numbers to numbers
+-- Ex. undice 11121 == Just 6
+undice :: Int -> Maybe Int
+undice n = elemIndex n . filter
+		   (null . (intersect "0789") . show) $ [11111..66666]