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{-# LANGUAGE PatternGuards #-}
{-
Copyright (C) 2017-2018 Jesse Rosenthal <jrosenthal@jhu.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.Powerpoint
Copyright : Copyright (C) 2017-2018 Jesse Rosenthal
License : GNU GPL, version 2 or above
Maintainer : Jesse Rosenthal <jrosenthal@jhu.edu>
Stability : alpha
Portability : portable
Conversion of 'Pandoc' documents to powerpoint (pptx). -}
{-
This is a wrapper around two modules:
- Text.Pandoc.Writers.Powerpoint.Presentation (which converts a
pandoc document into a Presentation datatype), and
- Text.Pandoc.Writers.Powerpoint.Output (which converts a
Presentation into a zip archive, which can be output).
-}
module Text.Pandoc.Writers.Powerpoint (writePowerpoint) where
import Codec.Archive.Zip
import Text.Pandoc.Definition
import Text.Pandoc.Walk
import Text.Pandoc.Class (PandocMonad, report)
import Text.Pandoc.Options (WriterOptions)
import Text.Pandoc.Writers.Shared (fixDisplayMath)
import Text.Pandoc.Writers.Powerpoint.Presentation (documentToPresentation)
import Text.Pandoc.Writers.Powerpoint.Output (presentationToArchive)
import qualified Data.ByteString.Lazy as BL
writePowerpoint :: (PandocMonad m)
=> WriterOptions -- ^ Writer options
-> Pandoc -- ^ Document to convert
-> m BL.ByteString
writePowerpoint opts (Pandoc meta blks) = do
let blks' = walk fixDisplayMath blks
let (pres, logMsgs) = documentToPresentation opts (Pandoc meta blks')
mapM_ report logMsgs
archv <- presentationToArchive opts pres
return $ fromArchive archv
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