Fixing build breakage...

[Rakka.git] / Rakka / Utils.hs

diff --git a/Rakka/Utils.hs b/Rakka/Utils.hs
index 15bc6f4043f5a87f149cd09a5147c4cb4cb5be7c..9cc06984440e09a9d7afe2ec12411f550d1a1f56 100644 (file)
--- a/Rakka/Utils.hs
+++ b/Rakka/Utils.hs
@@ -1,3 +1,7 @@
+{-# LANGUAGE
+    Arrows
+  , UnicodeSyntax
+  #-}
 module Rakka.Utils
     ( yesOrNo
     , trueOrFalse
@@ -10,80 +14,85 @@ module Rakka.Utils
     , mkQueryString
     )
     where
-
-import qualified Codec.Binary.UTF8.String as UTF8
-import           Control.Arrow
-import           Control.Arrow.ArrowList
-import qualified Data.ByteString.Lazy as Lazy (ByteString)
-import qualified Data.ByteString.Lazy.Char8 as L8 hiding (ByteString)
-import           Magic
-import           Network.HTTP.Lucu
-import           Network.URI
-import           System.IO.Unsafe
-
-
-yesOrNo :: Bool -> String
+import qualified Codec.Binary.Url as Url
+import Control.Arrow
+import Control.Arrow.ArrowList
+import qualified Data.ByteString as BS
+import qualified Data.ByteString.Lazy as LS
+import qualified Data.ByteString.Lazy.Char8 as L8
+import Data.List
+import qualified Data.Text as T
+import Data.Text.Encoding
+import Network.HTTP.Lucu
+import Network.URI
+import Prelude.Unicode
+import System.IO.Unsafe
+
+
+yesOrNo ∷ Bool → String
 yesOrNo True  = "yes"
 yesOrNo False = "no"
 
 
-trueOrFalse :: Bool -> String
+trueOrFalse ∷ Bool → String
 trueOrFalse True  = "true"
 trueOrFalse False = "false"
 
 
-parseYesOrNo :: ArrowChoice a => a String Bool
+parseYesOrNo ∷ ArrowChoice a => a String Bool
 parseYesOrNo 
-    = proc str -> do case str of
-                       "yes" -> returnA -< True
-                       "no"  -> returnA -< False
-                       _     -> returnA -< error ("Expected yes or no: " ++ str)
+    = proc str → do case str of
+                       "yes" → returnA -< True
+                       "no"  → returnA -< False
+                       _     → returnA -< error ("Expected yes or no: " ⧺ str)
 
 
-maybeA :: (ArrowList a, ArrowChoice a) => a b c -> a b (Maybe c)
+maybeA ∷ (ArrowList a, ArrowChoice a) => a b c → a b (Maybe c)
 maybeA a = listA a
            >>>
-           proc xs -> case xs of
-                        []    -> returnA -< Nothing
-                        (x:_) -> returnA -< Just x
+           proc xs → case xs of
+                        []    → returnA -< Nothing
+                        (x:_) → returnA -< Just x
 
 
-deleteIfEmpty :: (ArrowList a, ArrowChoice a) => a String String
+deleteIfEmpty ∷ (ArrowList a, ArrowChoice a) => a String String
 deleteIfEmpty
-    = proc str -> do case str of
-                       "" -> none    -< ()
-                       _  -> returnA -< str
+    = proc str → do case str of
+                       "" → none    -< ()
+                       _  → returnA -< str
 
 
-chomp :: String -> String
+chomp ∷ String → String
 chomp = reverse . snd . break (/= '\n') . reverse
 
 
-guessMIMEType :: Lazy.ByteString -> MIMEType
+guessMIMEType ∷ LS.ByteString → MIMEType
 guessMIMEType = read . unsafePerformIO . magicString magic . L8.unpack
     where
-      magic :: Magic
+      magic ∷ Magic
       magic = unsafePerformIO
               $ do m <- magicOpen [MagicMime]
                    magicLoadDefault m
                    return m
 
 
-isSafeChar :: Char -> Bool
+isSafeChar ∷ Char → Bool
 isSafeChar c
-    | c == '/'            = True
-    | isReserved c        = False
-    | c > ' ' && c <= '~' = True
-    | otherwise           = False
-
-
-mkQueryString :: [(String, String)] -> String
-mkQueryString []            = ""
-mkQueryString ((k, v) : xs) = encode k ++ "=" ++ encode v ++
-                              if xs == [] then
-                                  ""
-                              else
-                                  ';' : mkQueryString(xs)
+    | c ≡ '/'           = True
+    | isReserved c      = False
+    | isUnreserved c    = True
+    | otherwise         = False
+
+
+mkQueryString ∷ [(T.Text, T.Text)] → String
+{-# INLINEABLE mkQueryString #-}
+mkQueryString = intercalate ";" ∘ map pairToStr
     where
-      encode :: String -> String
-      encode = escapeURIString isSafeChar . UTF8.encodeString
\ No newline at end of file
+      pairToStr ∷ (T.Text, T.Text) → String
+      {-# INLINE pairToStr #-}
+      pairToStr (k, v)
+          = encode k ⧺ ('=':encode v)
+
+      encode ∷ T.Text → String
+      {-# INLINE encode #-}
+      encode = Url.encode ∘ BS.unpack ∘ encodeUtf8