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+{-# LANGUAGE TemplateHaskell #-}
+{-
+Copyright (C) 2008 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.ODT
+ Copyright : Copyright (C) 2006-7 John MacFarlane
+ License : GNU GPL, version 2 or above
+
+ Maintainer : John MacFarlane <jgm@berkeley.edu>
+ Stability : alpha
+ Portability : portable
+
+Functions for producing an ODT file from OpenDocument XML.
+-}
+module Text.Pandoc.ODT ( saveOpenDocumentAsODT ) where
+import Text.Pandoc.TH ( makeZip )
+import Data.List ( find )
+import System.FilePath ( (</>), takeFileName )
+import qualified Data.ByteString.Lazy as B
+import Data.ByteString.Lazy.UTF8 ( fromString )
+import Prelude hiding ( writeFile, readFile )
+import Codec.Archive.Zip
+import Control.Applicative ( (<$>) )
+import Text.ParserCombinators.Parsec
+import System.Time
+
+-- | Produce an ODT file from OpenDocument XML.
+saveOpenDocumentAsODT :: FilePath -- ^ Pathname of ODT file to be produced.
+ -> FilePath -- ^ Relative directory of source file.
+ -> String -- ^ OpenDocument XML contents.
+ -> IO ()
+saveOpenDocumentAsODT destinationODTPath sourceDirRelative xml = do
+ let refArchive = read $(makeZip $ "data" </> "odt-styles")
+ -- handle pictures
+ let (newContents, pics) =
+ case runParser pPictures [] "OpenDocument XML contents" xml of
+ Left err -> error $ show err
+ Right x -> x
+ picEntries <- mapM (makePictureEntry sourceDirRelative) pics
+ (TOD epochTime _) <- getClockTime
+ let contentEntry = toEntry "content.xml" epochTime $ fromString newContents
+ let archive = foldr addEntryToArchive refArchive (contentEntry : picEntries)
+ B.writeFile destinationODTPath $ fromArchive archive
+
+makePictureEntry :: FilePath -- ^ Relative directory of source file
+ -> (FilePath, String) -- ^ Path and new path of picture
+ -> IO Entry
+makePictureEntry sourceDirRelative (path, newPath) = do
+ entry <- readEntry [] $ sourceDirRelative </> path
+ return (entry { eRelativePath = newPath })
+
+pPictures :: GenParser Char [(FilePath, String)] ([Char], [(FilePath, String)])
+pPictures = do
+ contents <- concat <$> many (pPicture <|> many1 (noneOf "<") <|> string "<")
+ pics <- getState
+ return (contents, pics)
+
+pPicture :: GenParser Char [(FilePath, String)] [Char]
+pPicture = try $ do
+ string "<draw:image xlink:href=\""
+ path <- manyTill anyChar (char '"')
+ let filename = takeFileName path
+ pics <- getState
+ newPath <- case find (\(o, _) -> o == path) pics of
+ Just (_, new) -> return new
+ Nothing -> do
+ -- get a unique name
+ let dups = length $ (filter (\(o, _) -> takeFileName o == filename)) pics
+ let new = "Pictures/" ++ replicate dups '0' ++ filename
+ updateState ((path, new) :)
+ return new
+ return $ "<draw:image xlink:href=\"" ++ newPath ++ "\""