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{-
Copyright (C) 2008-2010 John MacFarlane <jgm@berkeley.edu>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-}
{- |
Module : Text.Pandoc.Writers.ODT
Copyright : Copyright (C) 2008-2010 John MacFarlane
License : GNU GPL, version 2 or above
Maintainer : John MacFarlane <jgm@berkeley.edu>
Stability : alpha
Portability : portable
Conversion of 'Pandoc' documents to ODT.
-}
module Text.Pandoc.Writers.ODT ( writeODT ) where
import Data.IORef
import System.FilePath ( (</>), takeExtension )
import qualified Data.ByteString.Lazy as B
import Data.ByteString.Lazy.UTF8 ( fromString )
import Codec.Archive.Zip
import System.Time
import Paths_pandoc ( getDataFileName )
import Text.Pandoc.Shared ( WriterOptions(..) )
import Text.Pandoc.Definition
import Text.Pandoc.Generic
import Text.Pandoc.Writers.OpenDocument ( writeOpenDocument )
import System.Directory
import Control.Monad (liftM)
-- | Produce an ODT file from a Pandoc document.
writeODT :: Maybe FilePath -- ^ Path specified by --reference-odt
-> WriterOptions -- ^ Writer options
-> Pandoc -- ^ Document to convert
-> IO B.ByteString
writeODT mbRefOdt opts doc = do
let datadir = writerUserDataDir opts
refArchive <- liftM toArchive $
case mbRefOdt of
Just f -> B.readFile f
Nothing -> do
let defaultODT = getDataFileName "reference.odt" >>= B.readFile
case datadir of
Nothing -> defaultODT
Just d -> do
exists <- doesFileExist (d </> "reference.odt")
if exists
then B.readFile (d </> "reference.odt")
else defaultODT
-- handle pictures
picEntriesRef <- newIORef ([] :: [Entry])
let sourceDir = writerSourceDirectory opts
doc' <- bottomUpM (transformPic sourceDir picEntriesRef) doc
let newContents = writeOpenDocument opts{writerWrapText = False} doc'
(TOD epochtime _) <- getClockTime
let contentEntry = toEntry "content.xml" epochtime $ fromString newContents
picEntries <- readIORef picEntriesRef
let archive = foldr addEntryToArchive refArchive (contentEntry : picEntries)
return $ fromArchive archive
transformPic :: FilePath -> IORef [Entry] -> Inline -> IO Inline
transformPic sourceDir entriesRef (Image lab (src,tit)) = do
entries <- readIORef entriesRef
let newsrc = "Pictures/" ++ show (length entries) ++ takeExtension src
catch (readEntry [] (sourceDir </> src) >>= \entry ->
modifyIORef entriesRef (entry{ eRelativePath = newsrc } :) >>
return (Image lab (newsrc, tit)))
(\_ -> return (Emph lab))
transformPic _ _ x = return x
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