diff options
Diffstat (limited to 'src/Text/Pandoc/PDF.hs')
| -rw-r--r-- | src/Text/Pandoc/PDF.hs | 56 |
1 files changed, 39 insertions, 17 deletions
diff --git a/src/Text/Pandoc/PDF.hs b/src/Text/Pandoc/PDF.hs index d5f7c609d..8f92a3321 100644 --- a/src/Text/Pandoc/PDF.hs +++ b/src/Text/Pandoc/PDF.hs @@ -1,6 +1,6 @@ {-# LANGUAGE OverloadedStrings, CPP, ScopedTypeVariables #-} {- -Copyright (C) 2012-2014 John MacFarlane <jgm@berkeley.edu> +Copyright (C) 2012-2015 John MacFarlane <jgm@berkeley.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 @@ -19,7 +19,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA {- | Module : Text.Pandoc.PDF - Copyright : Copyright (C) 2012-2014 John MacFarlane + Copyright : Copyright (C) 2012-2015 John MacFarlane License : GNU GPL, version 2 or above Maintainer : John MacFarlane <jgm@berkeley.edu> @@ -36,10 +36,11 @@ import qualified Data.ByteString.Lazy.Char8 as BC import qualified Data.ByteString as BS import System.Exit (ExitCode (..)) import System.FilePath +import System.IO (stderr, stdout) import System.Directory import Data.Digest.Pure.SHA (showDigest, sha1) import System.Environment -import Control.Monad (unless, (<=<)) +import Control.Monad (unless, when, (<=<)) import qualified Control.Exception as E import Control.Applicative ((<$)) import Data.List (isInfixOf) @@ -70,7 +71,8 @@ makePDF :: String -- ^ pdf creator (pdflatex, lualatex, xelatex) makePDF program writer opts doc = withTempDir "tex2pdf." $ \tmpdir -> do doc' <- handleImages opts tmpdir doc let source = writer opts doc' - tex2pdf' tmpdir program source + args = writerLaTeXArgs opts + tex2pdf' (writerVerbose opts) args tmpdir program source handleImages :: WriterOptions -> FilePath -- ^ temp dir to store images @@ -106,8 +108,7 @@ convertImages tmpdir (Image ils (src, tit)) = do img <- convertImage tmpdir src newPath <- case img of - Left e -> src <$ - warn ("Unable to convert image `" ++ src ++ "':\n" ++ e) + Left e -> src <$ warn e Right fp -> return fp return (Image ils (newPath, tit)) convertImages _ x = return x @@ -121,7 +122,8 @@ convertImage tmpdir fname = Just "application/pdf" -> doNothing _ -> JP.readImage fname >>= \res -> case res of - Left msg -> return $ Left msg + Left _ -> return $ Left $ "Unable to convert `" ++ + fname ++ "' for use with pdflatex." Right img -> E.catch (Right fileOut <$ JP.savePngImage fileOut img) $ \(e :: E.SomeException) -> return (Left (show e)) @@ -130,22 +132,25 @@ convertImage tmpdir fname = mime = getMimeType fname doNothing = return (Right fname) -tex2pdf' :: FilePath -- ^ temp directory for output +tex2pdf' :: Bool -- ^ Verbose output + -> [String] -- ^ Arguments to the latex-engine + -> FilePath -- ^ temp directory for output -> String -- ^ tex program -> String -- ^ tex source -> IO (Either ByteString ByteString) -tex2pdf' tmpDir program source = do +tex2pdf' verbose args tmpDir program source = do let numruns = if "\\tableofcontents" `isInfixOf` source then 3 -- to get page numbers else 2 -- 1 run won't give you PDF bookmarks - (exit, log', mbPdf) <- runTeXProgram program numruns tmpDir source + (exit, log', mbPdf) <- runTeXProgram verbose program args 1 numruns tmpDir source case (exit, mbPdf) of (ExitFailure _, _) -> do let logmsg = extractMsg log' let extramsg = case logmsg of - x | "! Package inputenc Error" `BC.isPrefixOf` x -> - "\nTry running pandoc with --latex-engine=xelatex." + x | ("! Package inputenc Error" `BC.isPrefixOf` x + && program /= "xelatex") + -> "\nTry running pandoc with --latex-engine=xelatex." _ -> "" return $ Left $ logmsg <> extramsg (ExitSuccess, Nothing) -> return $ Left "" @@ -170,9 +175,9 @@ extractMsg log' = do -- Run a TeX program on an input bytestring and return (exit code, -- contents of stdout, contents of produced PDF if any). Rerun -- a fixed number of times to resolve references. -runTeXProgram :: String -> Int -> FilePath -> String +runTeXProgram :: Bool -> String -> [String] -> Int -> Int -> FilePath -> String -> IO (ExitCode, ByteString, Maybe ByteString) -runTeXProgram program runsLeft tmpDir source = do +runTeXProgram verbose program args runNumber numRuns tmpDir source = do let file = tmpDir </> "input.tex" exists <- doesFileExist file unless exists $ UTF8.writeFile file source @@ -185,16 +190,33 @@ runTeXProgram program runsLeft tmpDir source = do let file' = file #endif let programArgs = ["-halt-on-error", "-interaction", "nonstopmode", - "-output-directory", tmpDir', file'] + "-output-directory", tmpDir'] ++ args ++ [file'] env' <- getEnvironment let sep = searchPathSeparator:[] let texinputs = maybe (tmpDir' ++ sep) ((tmpDir' ++ sep) ++) $ lookup "TEXINPUTS" env' let env'' = ("TEXINPUTS", texinputs) : [(k,v) | (k,v) <- env', k /= "TEXINPUTS"] + when (verbose && runNumber == 1) $ do + putStrLn $ "[makePDF] temp dir:" + putStrLn tmpDir' + putStrLn $ "[makePDF] Command line:" + putStrLn $ program ++ " " ++ 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'') program programArgs BL.empty - if runsLeft > 1 - then runTeXProgram program (runsLeft - 1) tmpDir source + when verbose $ do + putStrLn $ "[makePDF] Run #" ++ show runNumber + B.hPutStr stdout out + B.hPutStr stderr err + putStr "\n" + if runNumber <= numRuns + then runTeXProgram verbose program args (runNumber + 1) numRuns tmpDir source else do let pdfFile = replaceDirectory (replaceExtension file ".pdf") tmpDir pdfExists <- doesFileExist pdfFile |