diff options
Diffstat (limited to 'src/Text')
| -rw-r--r-- | src/Text/Pandoc/PDF.hs | 61 |
1 files changed, 58 insertions, 3 deletions
diff --git a/src/Text/Pandoc/PDF.hs b/src/Text/Pandoc/PDF.hs index 0e533ede8..72b563044 100644 --- a/src/Text/Pandoc/PDF.hs +++ b/src/Text/Pandoc/PDF.hs @@ -38,6 +38,7 @@ import Text.Pandoc.Compat.Monoid ((<>)) import System.Exit (ExitCode (..)) import System.FilePath import System.IO (stderr, stdout) +import System.IO.Temp (withTempFile) import System.Directory import Data.Digest.Pure.SHA (showDigest, sha1) import System.Environment @@ -49,7 +50,7 @@ import qualified Text.Pandoc.UTF8 as UTF8 import Text.Pandoc.Definition import Text.Pandoc.Walk (walkM) import Text.Pandoc.Shared (fetchItem', warn, withTempDir, inDirectory) -import Text.Pandoc.Options (WriterOptions(..)) +import Text.Pandoc.Options (WriterOptions(..), HTMLMathMethod(..)) import Text.Pandoc.MIME (extensionFromMimeType, getMimeType) import Text.Pandoc.Process (pipeProcess) import qualified Data.ByteString.Lazy as BL @@ -63,18 +64,29 @@ changePathSeparators :: FilePath -> FilePath changePathSeparators = intercalate "/" . splitDirectories #endif -makePDF :: String -- ^ pdf creator (pdflatex, lualatex, xelatex) +makePDF :: String -- ^ pdf creator (pdflatex, lualatex, + -- xelatex, context, wkhtmltopdf) -> (WriterOptions -> Pandoc -> String) -- ^ writer -> WriterOptions -- ^ options -> Pandoc -- ^ document -> IO (Either ByteString ByteString) +makePDF "wkhtmltopdf" writer opts doc = + wkhtml2pdf (writerVerbose opts) args source + where args = case writerHTMLMathMethod opts of + -- with MathJax, wait til all math is rendered: + MathJax _ -> ["--run-script", "MathJax.Hub.Register.StartupHook('End Typeset', function() { window.status = 'mathjax_loaded' });", + "--window-status", "mathjax_loaded"] + _ -> [] + source = writer opts doc makePDF program writer opts doc = withTempDir "tex2pdf." $ \tmpdir -> do doc' <- handleImages opts tmpdir doc let source = writer opts doc' args = writerLaTeXArgs opts case program of "context" -> context2pdf (writerVerbose opts) tmpdir source - _ -> tex2pdf' (writerVerbose opts) args tmpdir program source + _ | program `elem` ["pdflatex", "lualatex", "xelatex"] + -> tex2pdf' (writerVerbose opts) args tmpdir program source + _ -> return $ Left $ UTF8.fromStringLazy $ "Unknown program " ++ program handleImages :: WriterOptions -> FilePath -- ^ temp dir to store images @@ -235,6 +247,49 @@ runTeXProgram verbose program args runNumber numRuns tmpDir source = do else return Nothing return (exit, out <> err, pdf) +wkhtml2pdf :: Bool -- ^ Verbose output + -> [String] -- ^ Args to wkhtmltopdf + -> String -- ^ HTML5 source + -> IO (Either ByteString ByteString) +wkhtml2pdf verbose args source = do + file <- withTempFile "." "wkhtml2pdf.html" $ \fp _ -> return fp + pdfFile <- withTempFile "." "wkhtml2pdf.pdf" $ \fp _ -> return fp + UTF8.writeFile file source + let programArgs = args ++ [file, pdfFile] + env' <- getEnvironment + when verbose $ do + putStrLn "[makePDF] Command line:" + putStrLn $ "wkhtmltopdf" ++ " " ++ unwords (map show programArgs) + putStr "\n" + putStrLn "[makePDF] Environment:" + mapM_ print env' + putStr "\n" + putStrLn $ "[makePDF] Contents of " ++ file ++ ":" + B.readFile file >>= B.putStr + putStr "\n" + (exit, out, err) <- pipeProcess (Just env') "wkhtmltopdf" + programArgs BL.empty + removeFile file + when verbose $ do + B.hPutStr stdout out + B.hPutStr stderr err + putStr "\n" + pdfExists <- doesFileExist pdfFile + mbPdf <- if pdfExists + -- We read PDF as a strict bytestring to make sure that the + -- temp directory is removed on Windows. + -- See https://github.com/jgm/pandoc/issues/1192. + then do + res <- (Just . B.fromChunks . (:[])) `fmap` BS.readFile pdfFile + removeFile pdfFile + return res + else return Nothing + let log' = out <> err + return $ case (exit, mbPdf) of + (ExitFailure _, _) -> Left log' + (ExitSuccess, Nothing) -> Left "" + (ExitSuccess, Just pdf) -> Right pdf + context2pdf :: Bool -- ^ Verbose output -> FilePath -- ^ temp directory for output -> String -- ^ ConTeXt source |