cleaned up imports and comments

Network/XMPP/Utilities.hs

@@ -1,50 +1,34 @@
 -- Copyright © 2010-2011 Jon Kristensen. See the LICENSE file in the Pontarius
 -- XMPP distribution for more details.
 
-{-# OPTIONS_HADDOCK hide #-}
-
-{-# LANGUAGE OverloadedStrings #-}
+-- This module currently converts XML elements to strings.
 
 -- TODO: Use -fno-cse? http://cvs.haskell.org/Hugs/pages/libraries/base/System-IO-Unsafe.html
+-- TODO: Remove elementsToString?
 
+{-# OPTIONS_HADDOCK hide #-}
 
--- TODO: Document this module
--- TODO: Make is possible to customize characters
--- TODO: Make it possible to customize length
+{-# LANGUAGE OverloadedStrings #-}
 
 module Network.XMPP.Utilities ( elementToString
                               , elementsToString, testElement ) where
 
 import Prelude hiding (concat)
-import Data.Word
-import Data.XML.Types
-import System.Crypto.Random
-import System.Random
-import qualified Data.ByteString as DB
-import qualified Data.Map as DM
-import qualified Data.Text as DT
-import qualified Data.ByteString.Char8 as DBC
-
-import Data.Enumerator (($$), Stream (Chunks), Enumerator, Iteratee, Step (Continue), continue, joinI,
-                        run, run_, yield, returnI)
+
+import Data.ByteString (ByteString, concat)
+import Data.ByteString.Char8 (unpack)
+import Data.Enumerator (($$), Stream (Chunks), Enumerator, Step (Continue), joinI, run_, returnI)
 import Data.Enumerator.List (consume)
-import Text.XML.Enumerator.Document (toEvents)
+import Data.XML.Types (Document (..), Element (..), Event (..), Name (..), Prologue (..))
 import Text.XML.Enumerator.Render (renderBytes)
-import Data.Maybe (fromJust)
-import Data.ByteString (concat, unpack)
-import Data.List (tail)
-import System.IO.Unsafe (unsafePerformIO)
-
-
-{-# NOINLINE elementToString #-}
-
+import Text.XML.Enumerator.Document (toEvents)
 
--- =============================================================================
---  XML Utilities
--- =============================================================================
+import System.IO.Unsafe (unsafePerformIO)
 
 
--- TODO: Remove?
+-- Converts the Element objects to a document, converts it into Events, strips
+-- the DocumentBegin event, generates a ByteString, and converts it into a
+-- String, aggregates the results and returns a string.
 
 elementsToString :: [Element] -> String
 
@@ -56,22 +40,20 @@ elementsToString (e:es) = (elementToString (Just e)) ++ (elementsToString es)
 -- the DocumentBegin event, generates a ByteString, and converts it into a
 -- String.
 
+{-# NOINLINE elementToString #-}
+
 elementToString :: Maybe Element -> String
 
 elementToString Nothing = ""
-elementToString (Just elem) = DBC.unpack $ concat $ unsafePerformIO $ do
+elementToString (Just elem) = unpack $ concat $ unsafePerformIO $ do
     r <- run_ $ events $$ (joinI $ renderBytes $$ consume)
     return r
     where
 
         -- Enumerator that "produces" the events to convert to the document
-        events :: Enumerator Event IO [DB.ByteString]
+        events :: Enumerator Event IO [ByteString]
         events (Continue more) = more $ Chunks (tail $ toEvents $ dummyDoc elem)
         events step = returnI step
 
         dummyDoc :: Element -> Document
         dummyDoc e = Document (Prologue [] Nothing []) elem []
-
-
-testElement :: Element
-testElement = Element ("{http://example.com/ns/my-namespace}my-name" :: Name) [] []