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authorJasper Van der Jeugt <jaspervdj@gmail.com>2010-10-04 17:34:32 +0200
committerJasper Van der Jeugt <jaspervdj@gmail.com>2010-10-04 17:34:32 +0200
commit9d99eda221cb67cb80c5dbd0dfbf3635cfd7cadc (patch)
tree05e6a07622150a1bb45db349a14540949faa9a00 /src/Text/Hakyll
parent111828d282ea2a0a7d4a161960c4bc576bc89984 (diff)
downloadhakyll-9d99eda221cb67cb80c5dbd0dfbf3635cfd7cadc.tar.gz
Provide an arrow-based interface to Pandoc module
Diffstat (limited to 'src/Text/Hakyll')
-rw-r--r--src/Text/Hakyll/Pandoc.hs39
1 files changed, 19 insertions, 20 deletions
diff --git a/src/Text/Hakyll/Pandoc.hs b/src/Text/Hakyll/Pandoc.hs
index dcd7392..c0dec77 100644
--- a/src/Text/Hakyll/Pandoc.hs
+++ b/src/Text/Hakyll/Pandoc.hs
@@ -7,7 +7,7 @@ module Text.Hakyll.Pandoc
import Data.Maybe (fromMaybe)
import qualified Data.Map as M
-import Control.Arrow (second, (>>>), arr)
+import Control.Arrow (second, (>>>), arr, (&&&))
import Text.Pandoc
@@ -19,15 +19,15 @@ import Text.Hakyll.Context
-- | Get a render function for a given extension.
--
-getRenderFunction :: FileType -> Hakyll (String -> String)
-getRenderFunction Html = return id
-getRenderFunction Text = return id
-getRenderFunction UnknownFileType = return id
-getRenderFunction fileType = do
- parserState <- askHakyll pandocParserState
- writerOptions <- askHakyll pandocWriterOptions
- return $ writeHtmlString writerOptions
- . readFunction fileType (readOptions parserState fileType)
+getRenderFunction :: HakyllAction FileType (String -> String)
+getRenderFunction = createHakyllAction $ \fileType -> case fileType of
+ Html -> return id
+ Text -> return id
+ UnknownFileType -> return id
+ _ -> do parserState <- askHakyll pandocParserState
+ writerOptions <- askHakyll pandocWriterOptions
+ return $ writeHtmlString writerOptions
+ . readFunction fileType (readOptions parserState fileType)
where
readFunction ReStructuredText = readRST
readFunction LaTeX = readLaTeX
@@ -42,17 +42,16 @@ getRenderFunction fileType = do
-- | An action that renders the list of page sections to a context using pandoc
--
renderAction :: HakyllAction [PageSection] Context
-renderAction = createHakyllAction $ \sections -> do
- let path = fromMaybe "unknown" $ lookup "path"
- $ map (\(x, y, _) -> (x, y))
- $ map unPageSection sections
- render' <- getRenderFunction $ getFileType path
- runHakyllAction $ arr (const sections) >>> renderActionWith render'
+renderAction = (arr id &&& (getFileType' >>> getRenderFunction))
+ >>> renderActionWith
+ where
+ getFileType' = arr $ getFileType . fromMaybe "unknown" . lookup "path"
+ . map (\(x, y, _) -> (x, y)) . map unPageSection
-- | An action to render pages, offering just a little more flexibility
--
-renderActionWith :: (String -> String) -> HakyllAction [PageSection] Context
-renderActionWith render' = createHakyllAction $ \sections -> return $
- Context $ M.fromList $ map (renderTriple . unPageSection) sections
+renderActionWith :: HakyllAction ([PageSection], String -> String) Context
+renderActionWith = createHakyllAction $ \(sections, render') -> return $
+ Context $ M.fromList $ map (renderTriple render' . unPageSection) sections
where
- renderTriple (k, v, r) = second (if r then render' else id) (k, v)
+ renderTriple render' (k, v, r) = second (if r then render' else id) (k, v)