4 files changed, 27 insertions, 2 deletions
diff --git a/src/Hakyll/Core/Identifier/Pattorn.hs b/src/Hakyll/Core/Identifier/Pattorn.hs
index 0910320..e1767c4 100644
--- a/src/Hakyll/Core/Identifier/Pattorn.hs
+++ b/src/Hakyll/Core/Identifier/Pattorn.hs
@@ -11,6 +11,8 @@ newtype Pattorn = Pattorn { getPattern :: Pattern }
 
 instance Semigroup Pattorn where
     Pattorn a <> Pattorn b = Pattorn $ a .||. b
+    {-# INLINE (<>) #-}
 
 instance Monoid Pattorn where
     mempty = Pattorn $ complement mempty
+    {-# INLINE mempty #-}
diff --git a/src/Hakyll/Error.hs b/src/Hakyll/Error.hs
index 3ca29d3..35102d4 100644
--- a/src/Hakyll/Error.hs
+++ b/src/Hakyll/Error.hs
@@ -1,6 +1,8 @@
 module Hakyll.Error
     ( ErrorConv (..)
     , throwErr
+    , liftErr
+    , squashErr
     , CompilerError
     ) where
 
@@ -15,10 +17,13 @@ type CompilerError c = ErrorConv c [String]
 instance ErrorCnv err err where
     toErr = id
 
+instance Exception c => ErrorCnv c SomeException where
+    toErr = SomeException
+
 -- instance Functor f => ErrorCnv c err => ErrorCnv (f c) (f err) where
 --     toErr = fmap toErr
 
-instance Applicative f => ErrorCnv c err => ErrorCnv c (f err) where
+instance (Applicative f, ErrorCnv c err) => ErrorCnv c (f err) where
     toErr = pure . toErr
 
 throwErr :: (MonadError err m, ErrorConv c err) => c -> m a
diff --git a/src/Hakyll/Parsec/Parsec.hs b/src/Hakyll/Parsec/Parsec.hs
index cac653c..123c5fd 100644
--- a/src/Hakyll/Parsec/Parsec.hs
+++ b/src/Hakyll/Parsec/Parsec.hs
@@ -1,7 +1,8 @@
 module Hakyll.Parsec.Parsec
     ( compileParsec
     , compileParsec_
-    , evalParsec
+    , parsecCompiler
+    , parsecCompiler_
     ) where
 
 import Prolog
@@ -18,3 +19,9 @@ compileParsec p u itm@(Item i _) = traverse (liftErr . runParser p u (show i)) i
 
 compileParsec_ :: (MonadError [String] m, Stream s Identity t) => Parsec s () a -> Item s -> m (Item a)
 compileParsec_ p = compileParsec p ()
+
+parsecCompiler :: (Stream s Identity t, StringConv LazyByteString s) => Parsec s u a -> u -> Compiler (Item a)
+parsecCompiler p u = getResourceLBS >>= compileParsec p u . fmap toSL
+
+parsecCompiler_ :: (Stream s Identity t, StringConv LazyByteString s) => Parsec s () a -> Compiler (Item a)
+parsecCompiler_ p = parsecCompiler p ()
diff --git a/src/Hakyll/Web/Template/Util.hs b/src/Hakyll/Web/Template/Util.hs
new file mode 100644
index 0000000..cfd8573
--- /dev/null
+++ b/src/Hakyll/Web/Template/Util.hs
@@ -0,0 +1,11 @@
+module Hakyll.Web.Template.Util
+    ( slug
+    ) where
+
+import Prolog
+import Hakyll.Web.Template.Context
+import Data.String.Slugger
+
+
+slug :: Context a
+slug = functionField "slug" $ \strs _ -> pure $ toSlug $ unwords strs