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{- |
Module : Text.Pandoc.Writers.Powerpoint
Copyright : Copyright (C) 2017-2020 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 (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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