move PGF.Quiz to GF.Quiz. It is not part of the PGF API

GF.cabal

@@ -676,6 +676,7 @@ executable gf
     GF.Compile.GetGrammar
     GF.Compile
     GF.System.Readline
+    GF.Quiz
     PGF
     PGF.CId
     PGF.Data

src/GF/Command/Commands.hs

@@ -15,7 +15,6 @@ import PGF.ShowLinearize
 import PGF.Macros
 import PGF.Data ----
 import PGF.Morphology
-import PGF.Quiz
 import PGF.VisualizeTree
 import GF.Compile.Export
 import GF.Infra.Option (noOptions)
@@ -26,6 +25,7 @@ import GF.Command.Abstract
 import GF.Command.Messages
 import GF.Text.Lexing
 import GF.Text.Transliterations
+import GF.Quiz
 
 import GF.Command.TreeOperations ---- temporary place for typecheck and compute
 

src/GF/Infra/UseIO.hs

@@ -153,34 +153,6 @@ putStrFlush s = putStr s >> hFlush stdout
 putStrLnFlush :: String -> IO ()
 putStrLnFlush s = putStrLn s >> hFlush stdout
 
--- * a generic quiz session
-
-type QuestionsAndAnswers = [(String, String -> (Integer,String))]
-
-teachDialogue :: QuestionsAndAnswers -> String -> IO ()
-teachDialogue qas welc = do
-  putStrLn $ welc ++++ genericTeachWelcome
-  teach (0,0) qas
- where 
-    teach _ [] = do putStrLn "Sorry, ran out of problems"
-    teach (score,total) ((question,grade):quas) = do
-      putStr ("\n" ++ question ++ "\n> ") 
-      answer <- getLine
-      if (answer == ".") then return () else do
-        let (result, feedback) = grade answer
-            score' = score + result 
-            total' = total + 1
-        putStr (feedback ++++ "Score" +++ show score' ++ "/" ++ show total')
-        if (total' > 9 && fromInteger score' / fromInteger total' >= 0.75)
-           then do putStrLn "\nCongratulations - you passed!"
-           else teach (score',total') quas
-
-    genericTeachWelcome = 
-      "The quiz is over when you have done at least 10 examples" ++++
-      "with at least 75 % success." +++++
-      "You can interrupt the quiz by entering a line consisting of a dot ('.').\n"
-
-
 -- * IO monad with error; adapted from state monad
 
 newtype IOE a = IOE (IO (Err a))

src/GF/Quiz.hs

@@ -12,7 +12,7 @@
 -- translation and morphology quiz. AR 10\/5\/2000 -- 12\/4\/2002 -- 14\/6\/2008
 --------------------------------------------------------------------------------
 
-module PGF.Quiz (
+module GF.Quiz (
   mkQuiz,
   translationList,
   morphologyList
@@ -69,3 +69,30 @@ mkAnswer cod as s =
 
 norml = unwords . words
 
+
+-- * a generic quiz session
+
+type QuestionsAndAnswers = [(String, String -> (Integer,String))]
+
+teachDialogue :: QuestionsAndAnswers -> String -> IO ()
+teachDialogue qas welc = do
+  putStrLn $ welc ++++ genericTeachWelcome
+  teach (0,0) qas
+ where 
+    teach _ [] = do putStrLn "Sorry, ran out of problems"
+    teach (score,total) ((question,grade):quas) = do
+      putStr ("\n" ++ question ++ "\n> ") 
+      answer <- getLine
+      if (answer == ".") then return () else do
+        let (result, feedback) = grade answer
+            score' = score + result 
+            total' = total + 1
+        putStr (feedback ++++ "Score" +++ show score' ++ "/" ++ show total')
+        if (total' > 9 && fromInteger score' / fromInteger total' >= 0.75)
+           then do putStrLn "\nCongratulations - you passed!"
+           else teach (score',total') quas
+
+    genericTeachWelcome = 
+      "The quiz is over when you have done at least 10 examples" ++++
+      "with at least 75 % success." +++++
+      "You can interrupt the quiz by entering a line consisting of a dot ('.').\n"