added binary instances for csl and pandoc, fix #174

hakyll.cabal

@@ -137,6 +137,7 @@ Library
     Hakyll.Core.Util.File
     Hakyll.Core.Util.Parser
     Hakyll.Web.Template.Internal
+    Hakyll.Web.Pandoc.Binary
     Paths_hakyll
 
   Build-Depends:

src/Hakyll/Web/Pandoc/Biblio.hs

@@ -21,6 +21,7 @@ module Hakyll.Web.Pandoc.Biblio
 
 --------------------------------------------------------------------------------
 import           Control.Applicative    ((<$>))
+import           Control.Monad          (replicateM)
 import           Data.Binary            (Binary (..))
 import           Data.Typeable          (Typeable)
 import qualified Text.CSL               as CSL
@@ -33,6 +34,7 @@ import           Hakyll.Core.Identifier
 import           Hakyll.Core.Item
 import           Hakyll.Core.Writable
 import           Hakyll.Web.Pandoc
+import           Hakyll.Web.Pandoc.Binary ()
 
 
 --------------------------------------------------------------------------------
@@ -65,8 +67,10 @@ newtype Biblio = Biblio [CSL.Reference]
 --------------------------------------------------------------------------------
 instance Binary Biblio where
     -- Ugly.
-    get             = Biblio . read <$> get
-    put (Biblio rs) = put $ show rs
+    get             = do
+        len <- get
+        Biblio <$> replicateM len get
+    put (Biblio rs) = put (length rs) >> mapM_ put rs
 
 
 --------------------------------------------------------------------------------

src/Hakyll/Web/Pandoc/Binary.hs

@@ -0,0 +1,31 @@
+{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# LANGUAGE DeriveGeneric              #-}
+module Hakyll.Web.Pandoc.Binary where
+
+import           Data.Binary            (Binary (..))
+
+import qualified Text.CSL               as CSL
+import qualified Text.CSL.Reference     as REF
+import qualified Text.CSL.Style         as STY
+import           Text.Pandoc            
+
+--------------------------------------------------------------------------------
+-- orphans
+
+instance Binary REF.CNum
+instance Binary REF.Literal
+instance Binary REF.RefDate
+instance Binary REF.RefType
+instance Binary STY.Agent
+instance Binary STY.Formatted
+instance Binary Inline
+instance Binary Block
+instance Binary Citation
+instance Binary MathType
+instance Binary Alignment
+instance Binary CitationMode
+instance Binary QuoteType
+instance Binary Format
+instance Binary ListNumberDelim
+instance Binary ListNumberStyle
+instance Binary CSL.Reference