82b3e0ab97
- The (non-exported) prelude is in prelude/Prelude.hs. - It exports Monoid and Applicative, like base 4.8 prelude, but works with older base versions. - It exports (<>) for mappend. - It hides 'catch' on older base versions. This allows us to remove many imports of Data.Monoid and Control.Applicative, and remove Text.Pandoc.Compat.Monoid. It should allow us to use -Wall again for ghc 7.10.
179 lines
8 KiB
Haskell
179 lines
8 KiB
Haskell
{-# LANGUAGE ScopedTypeVariables #-}
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{-
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Copyright (C) 2008-2015 John MacFarlane <jgm@berkeley.edu>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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-}
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{- |
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Module : Text.Pandoc.Writers.ODT
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Copyright : Copyright (C) 2008-2015 John MacFarlane
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License : GNU GPL, version 2 or above
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Maintainer : John MacFarlane <jgm@berkeley.edu>
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Stability : alpha
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Portability : portable
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Conversion of 'Pandoc' documents to ODT.
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-}
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module Text.Pandoc.Writers.ODT ( writeODT ) where
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import Data.IORef
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import Data.List ( isPrefixOf )
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import Data.Maybe ( fromMaybe )
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import Text.XML.Light.Output
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import Text.TeXMath
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import qualified Data.ByteString.Lazy as B
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import Text.Pandoc.UTF8 ( fromStringLazy )
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import Codec.Archive.Zip
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import Text.Pandoc.Options ( WriterOptions(..) )
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import Text.Pandoc.Shared ( stringify, fetchItem', warn,
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getDefaultReferenceODT )
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import Text.Pandoc.ImageSize ( imageSize, sizeInPoints )
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import Text.Pandoc.MIME ( getMimeType, extensionFromMimeType )
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import Text.Pandoc.Definition
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import Text.Pandoc.Walk
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import Text.Pandoc.Writers.Shared ( fixDisplayMath )
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import Text.Pandoc.Writers.OpenDocument ( writeOpenDocument )
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import Control.Monad (liftM)
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import Text.Pandoc.XML
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import Text.Pandoc.Pretty
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import qualified Control.Exception as E
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import Data.Time.Clock.POSIX ( getPOSIXTime )
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import System.FilePath ( takeExtension, takeDirectory, (<.>))
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-- | Produce an ODT file from a Pandoc document.
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writeODT :: WriterOptions -- ^ Writer options
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-> Pandoc -- ^ Document to convert
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-> IO B.ByteString
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writeODT opts doc@(Pandoc meta _) = do
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let datadir = writerUserDataDir opts
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let title = docTitle meta
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refArchive <-
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case writerReferenceODT opts of
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Just f -> liftM toArchive $ B.readFile f
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Nothing -> getDefaultReferenceODT datadir
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-- handle formulas and pictures
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picEntriesRef <- newIORef ([] :: [Entry])
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doc' <- walkM (transformPicMath opts picEntriesRef) $ walk fixDisplayMath doc
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let newContents = writeOpenDocument opts{writerWrapText = False} doc'
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epochtime <- floor `fmap` getPOSIXTime
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let contentEntry = toEntry "content.xml" epochtime
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$ fromStringLazy newContents
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picEntries <- readIORef picEntriesRef
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let archive = foldr addEntryToArchive refArchive
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$ contentEntry : picEntries
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-- construct META-INF/manifest.xml based on archive
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let toFileEntry fp = case getMimeType fp of
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Nothing -> empty
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Just m -> selfClosingTag "manifest:file-entry"
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[("manifest:media-type", m)
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,("manifest:full-path", fp)
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,("manifest:version", "1.2")
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]
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let files = [ ent | ent <- filesInArchive archive,
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not ("META-INF" `isPrefixOf` ent) ]
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let formulas = [ takeDirectory ent ++ "/" | ent <- filesInArchive archive,
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"Formula-" `isPrefixOf` ent, takeExtension ent == ".xml" ]
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let manifestEntry = toEntry "META-INF/manifest.xml" epochtime
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$ fromStringLazy $ render Nothing
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$ text "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
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$$
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( inTags True "manifest:manifest"
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[("xmlns:manifest","urn:oasis:names:tc:opendocument:xmlns:manifest:1.0")
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,("manifest:version","1.2")]
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$ ( selfClosingTag "manifest:file-entry"
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[("manifest:media-type","application/vnd.oasis.opendocument.text")
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,("manifest:full-path","/")]
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$$ vcat ( map toFileEntry $ files )
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$$ vcat ( map toFileEntry $ formulas )
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)
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)
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let archive' = addEntryToArchive manifestEntry archive
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let metaEntry = toEntry "meta.xml" epochtime
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$ fromStringLazy $ render Nothing
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$ text "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
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$$
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( inTags True "office:document-meta"
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[("xmlns:office","urn:oasis:names:tc:opendocument:xmlns:office:1.0")
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,("xmlns:xlink","http://www.w3.org/1999/xlink")
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,("xmlns:dc","http://purl.org/dc/elements/1.1/")
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,("xmlns:meta","urn:oasis:names:tc:opendocument:xmlns:meta:1.0")
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,("xmlns:ooo","http://openoffice.org/2004/office")
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,("xmlns:grddl","http://www.w3.org/2003/g/data-view#")
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,("office:version","1.2")]
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$ ( inTagsSimple "office:meta"
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$ ( inTagsSimple "dc:title" (text $ escapeStringForXML (stringify title))
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)
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)
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)
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-- make sure mimetype is first
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let mimetypeEntry = toEntry "mimetype" epochtime
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$ fromStringLazy "application/vnd.oasis.opendocument.text"
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let archive'' = addEntryToArchive mimetypeEntry
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$ addEntryToArchive metaEntry archive'
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return $ fromArchive archive''
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transformPicMath :: WriterOptions -> IORef [Entry] -> Inline -> IO Inline
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transformPicMath opts entriesRef (Image lab (src,t)) = do
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res <- fetchItem' (writerMediaBag opts) (writerSourceURL opts) src
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case res of
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Left (_ :: E.SomeException) -> do
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warn $ "Could not find image `" ++ src ++ "', skipping..."
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return $ Emph lab
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Right (img, mbMimeType) -> do
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(w,h) <- case imageSize img of
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Right size -> return $ sizeInPoints size
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Left msg -> do
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warn $ "Could not determine image size in `" ++
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src ++ "': " ++ msg
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return (0,0)
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let tit' = show w ++ "x" ++ show h
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entries <- readIORef entriesRef
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let extension = fromMaybe (takeExtension $ takeWhile (/='?') src)
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(mbMimeType >>= extensionFromMimeType)
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let newsrc = "Pictures/" ++ show (length entries) <.> extension
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let toLazy = B.fromChunks . (:[])
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epochtime <- floor `fmap` getPOSIXTime
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let entry = toEntry newsrc epochtime $ toLazy img
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modifyIORef entriesRef (entry:)
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let fig | "fig:" `isPrefixOf` t = "fig:"
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| otherwise = ""
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return $ Image lab (newsrc, fig++tit')
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transformPicMath _ entriesRef (Math t math) = do
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entries <- readIORef entriesRef
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let dt = if t == InlineMath then DisplayInline else DisplayBlock
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case writeMathML dt <$> readTeX math of
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Left _ -> return $ Math t math
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Right r -> do
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let conf = useShortEmptyTags (const False) defaultConfigPP
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let mathml = ppcTopElement conf r
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epochtime <- floor `fmap` getPOSIXTime
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let dirname = "Formula-" ++ show (length entries) ++ "/"
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let fname = dirname ++ "content.xml"
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let entry = toEntry fname epochtime (fromStringLazy mathml)
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modifyIORef entriesRef (entry:)
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return $ RawInline (Format "opendocument") $ render Nothing $
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inTags False "draw:frame" [("text:anchor-type",
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if t == DisplayMath
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then "paragraph"
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else "as-char")
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,("style:vertical-pos", "middle")
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,("style:vertical-rel", "text")] $
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selfClosingTag "draw:object" [("xlink:href", dirname)
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, ("xlink:type", "simple")
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, ("xlink:show", "embed")
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, ("xlink:actuate", "onLoad")]
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transformPicMath _ _ x = return x
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