style: format code

Main.hs

@@ -10,14 +10,12 @@ import Data.List
 import Data.Maybe
 import Proj2
 
-
 -- | Guess the given target, counting and showing the guesses.
 guessTest :: [Pitch] -> IO ()
 guessTest target = do
-      let (guess,other) = initialGuess
+  let (guess, other) = initialGuess
   loop target guess other 1
 
-
 -- | Given a target and guess and a guess number, continue guessing
 -- until the right target is guessed.
 loop :: [Pitch] -> [Pitch] -> GameState -> Int -> IO ()
@@ -25,19 +23,17 @@ loop target guess other guesses = do
   putStrLn $ "Your guess #" ++ show guesses ++ ":  " ++ show guess
   let answer = feedback target guess
   putStrLn $ "    My answer:  " ++ show answer
-  if answer == (3,0,0)
+  if answer == (3, 0, 0)
     then do
       putStrLn $ "You got it in " ++ show guesses ++ " guesses!"
     else do
-      let (guess',other') = nextGuess (guess,other) answer
-      loop target guess' other' (guesses+1)
-
+      let (guess', other') = nextGuess (guess, other) answer
+      loop target guess' other' (guesses + 1)
 
 -- | Parse a string containing a number of space-separated pitches to produce
 -- a list of pitches.  Error if any of the pitches can't be parsed.
 toChord :: String -> [Pitch]
-toChord = (fromJust . mapM toPitch . words)
-
+toChord = fromJust . mapM toPitch . words
 
 -- | Prompt for a target and use guessTest to try to guess it.
 main :: IO ()

Proj2.hs

@@ -1,26 +1,31 @@
---Implement your solution here
---SEE THE PROJECT CODING GUIDELINES ON THE LMS FOR DETAILS OF
---THE CRITERIA THAT WILL BE EMPLOYED IN ASSESSING YOUR CODE.
---Please DELETE THIS WHOLE COMMENT, and write your own.
+--
 
-module Proj2 (Pitch, toPitch, feedback,
-              GameState, initialGuess, nextGuess) where
+module Proj2
+  ( Pitch,
+    toPitch,
+    feedback,
+    GameState,
+    initialGuess,
+    nextGuess,
+  )
+where
 
 type GameState = ()
 
-data Pitch = Pitch { note :: Char
-                   , octave :: Int
-                   } deriving (Eq)
+data Pitch = Pitch
+  { note :: Char,
+    octave :: Int
+  }
+  deriving (Eq)
 
 instance Show Pitch where
-    show (Pitch note octave) = [note] ++ show octave
-
+  show (Pitch note octave) = note : show octave
 
 toPitch :: String -> Maybe Pitch
 toPitch _ = Just (Pitch 'A' 1)
 
 feedback :: [Pitch] -> [Pitch] -> (Int, Int, Int)
-feedback _ _ = (0,0,0)
+feedback _ _ = (0, 0, 0)
 
 initialGuess :: ([Pitch], GameState)
 initialGuess = ([Pitch 'A' 1], ())