99 lines
3.5 KiB
Haskell
99 lines
3.5 KiB
Haskell
{-# LANGUAGE PatternGuards #-}
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{-
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Copyright (C) 2015 Martin Linnemann <theCodingMarlin@googlemail.com>
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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.Reader.Odt
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Copyright : Copyright (C) 2015 Martin Linnemann
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License : GNU GPL, version 2 or above
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Maintainer : Martin Linnemann <theCodingMarlin@googlemail.com>
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Stability : alpha
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Portability : portable
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Entry point to the odt reader.
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-}
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module Text.Pandoc.Readers.Odt ( readOdt ) where
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import Codec.Archive.Zip
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import qualified Text.XML.Light as XML
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import qualified Data.ByteString.Lazy as B
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import System.FilePath
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import Text.Pandoc.Definition
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import Text.Pandoc.Error
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import Text.Pandoc.Options
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import Text.Pandoc.MediaBag
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import qualified Text.Pandoc.UTF8 as UTF8
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import Text.Pandoc.Readers.Odt.ContentReader
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import Text.Pandoc.Readers.Odt.StyleReader
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import Text.Pandoc.Readers.Odt.Generic.XMLConverter
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import Text.Pandoc.Readers.Odt.Generic.Fallible
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import Text.Pandoc.Shared (filteredFilesFromArchive)
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--
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readOdt :: ReaderOptions
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-> B.ByteString
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-> Either PandocError (Pandoc, MediaBag)
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readOdt _ bytes = bytesToOdt bytes-- of
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-- Right (pandoc, mediaBag) -> Right (pandoc , mediaBag)
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-- Left err -> Left err
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--
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bytesToOdt :: B.ByteString -> Either PandocError (Pandoc, MediaBag)
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bytesToOdt bytes = case toArchiveOrFail bytes of
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Right archive -> archiveToOdt archive
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Left _ -> Left $ ParseFailure "Couldn't parse odt file."
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--
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archiveToOdt :: Archive -> Either PandocError (Pandoc, MediaBag)
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archiveToOdt archive
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| Just contentEntry <- findEntryByPath "content.xml" archive
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, Just stylesEntry <- findEntryByPath "styles.xml" archive
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, Just contentElem <- entryToXmlElem contentEntry
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, Just stylesElem <- entryToXmlElem stylesEntry
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, Right styles <- chooseMax (readStylesAt stylesElem )
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(readStylesAt contentElem)
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, media <- filteredFilesFromArchive archive filePathIsOdtMedia
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, startState <- readerState styles media
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, Right pandocWithMedia <- runConverter' read_body
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startState
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contentElem
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= Right pandocWithMedia
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| otherwise
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-- Not very detailed, but I don't think more information would be helpful
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= Left $ ParseFailure "Couldn't parse odt file."
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where
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filePathIsOdtMedia :: FilePath -> Bool
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filePathIsOdtMedia fp =
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let (dir, _) = splitFileName fp
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in
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(dir == "Pictures/")
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--
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entryToXmlElem :: Entry -> Maybe XML.Element
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entryToXmlElem = XML.parseXMLDoc . UTF8.toStringLazy . fromEntry
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