diff options
Diffstat (limited to 'src/Text/Pandoc/App.hs')
| -rw-r--r-- | src/Text/Pandoc/App.hs | 80 |
1 files changed, 46 insertions, 34 deletions
diff --git a/src/Text/Pandoc/App.hs b/src/Text/Pandoc/App.hs index e46d03025..7c463d743 100644 --- a/src/Text/Pandoc/App.hs +++ b/src/Text/Pandoc/App.hs @@ -35,11 +35,12 @@ Does a pandoc conversion based on command-line options. module Text.Pandoc.App ( convertWithOpts , Opt(..) + , LineEnding(..) + , Filter(..) , defaultOpts , parseOptions , options , applyFilters - , applyLuaFilters ) where import qualified Control.Exception as E import Control.Monad @@ -184,11 +185,13 @@ convertWithOpts opts = do Nothing -> return Nothing Just fp -> Just <$> UTF8.readFile fp + let isPandocCiteproc (JSONFilter f) = takeBaseName f == "pandoc-citeproc" + isPandocCiteproc _ = False -- --bibliography implies -F pandoc-citeproc for backwards compatibility: let needsCiteproc = isJust (lookup "bibliography" (optMetadata opts)) && optCiteMethod opts `notElem` [Natbib, Biblatex] && - "pandoc-citeproc" `notElem` map takeBaseName filters - let filters' = if needsCiteproc then "pandoc-citeproc" : filters + all (not . isPandocCiteproc) filters + let filters' = if needsCiteproc then JSONFilter "pandoc-citeproc" : filters else filters let sources = case optInputFiles opts of @@ -501,10 +504,9 @@ convertWithOpts opts = do then fillMediaBag else return) >=> return . addMetadata metadata - >=> applyLuaFilters datadir (optLuaFilters opts) format - >=> maybe return extractMedia (optExtractMedia opts) >=> applyTransforms transforms - >=> applyFilters readerOpts datadir filters' [format] + >=> applyFilters readerOpts filters' [format] + >=> maybe return extractMedia (optExtractMedia opts) ) case writer of @@ -583,6 +585,10 @@ externalFilter ropts f args' d = liftIO $ do where filterException :: E.SomeException -> IO a filterException e = E.throwIO $ PandocFilterError f (show e) +data Filter = LuaFilter FilePath + | JSONFilter FilePath + deriving (Show) + -- | Data structure for command line options. data Opt = Opt { optTabStop :: Int -- ^ Number of spaces per tab @@ -626,8 +632,7 @@ data Opt = Opt , optDpi :: Int -- ^ Dpi , optWrapText :: WrapOption -- ^ Options for wrapping text , optColumns :: Int -- ^ Line length in characters - , optFilters :: [FilePath] -- ^ Filters to apply - , optLuaFilters :: [FilePath] -- ^ Lua filters to apply + , optFilters :: [Filter] -- ^ Filters to apply , optEmailObfuscation :: ObfuscationMethod , optIdentifierPrefix :: String , optStripEmptyParagraphs :: Bool -- ^ Strip empty paragraphs @@ -700,7 +705,6 @@ defaultOpts = Opt , optWrapText = WrapAuto , optColumns = 72 , optFilters = [] - , optLuaFilters = [] , optEmailObfuscation = NoObfuscation , optIdentifierPrefix = "" , optStripEmptyParagraphs = False @@ -832,41 +836,46 @@ applyTransforms transforms d = return $ foldr ($) d transforms -- First we check to see if a filter is found. If not, and if it's -- not an absolute path, we check to see whether it's in `userdir/filters`. -- If not, we leave it unchanged. -expandFilterPath :: MonadIO m => Maybe FilePath -> FilePath -> m FilePath -expandFilterPath mbDatadir fp = liftIO $ do - fpExists <- doesFileExist fp +expandFilterPath :: PandocMonad m => FilePath -> m FilePath +expandFilterPath fp = do + mbDatadir <- getUserDataDir + fpExists <- fileExists fp if fpExists then return fp else case mbDatadir of Just datadir | isRelative fp -> do let filterPath = datadir </> "filters" </> fp - filterPathExists <- doesFileExist filterPath + filterPathExists <- fileExists filterPath if filterPathExists then return filterPath else return fp _ -> return fp -applyLuaFilters :: Maybe FilePath -> [FilePath] -> String -> Pandoc - -> PandocIO Pandoc -applyLuaFilters mbDatadir filters format d = do - expandedFilters <- mapM (expandFilterPath mbDatadir) filters - let go f d' = do - res <- runLuaFilter f format d' - case res of - Right x -> return x - Left (LuaException s) -> E.throw (PandocFilterError f s) - foldrM ($) d $ map go expandedFilters - -applyFilters :: MonadIO m - => ReaderOptions - -> Maybe FilePath - -> [FilePath] +applyFilters :: ReaderOptions + -> [Filter] -> [String] -> Pandoc - -> m Pandoc -applyFilters ropts mbDatadir filters args d = do - expandedFilters <- mapM (expandFilterPath mbDatadir) filters - foldrM ($) d $ map (flip (externalFilter ropts) args) expandedFilters + -> PandocIO Pandoc +applyFilters ropts filters args d = do + foldrM ($) d $ map (applyFilter ropts args) filters + +applyFilter :: ReaderOptions + -> [String] + -> Filter + -> Pandoc + -> PandocIO Pandoc +applyFilter _ropts args (LuaFilter f) d = do + f' <- expandFilterPath f + let format = case args of + (x:_) -> x + _ -> error "Format not supplied for lua filter" + res <- runLuaFilter f' format d + case res of + Right x -> return x + Left (LuaException s) -> E.throw (PandocFilterError f s) +applyFilter ropts args (JSONFilter f) d = do + f' <- expandFilterPath f + liftIO $ externalFilter ropts f' args d readSource :: FilePath -> PandocIO Text readSource "-" = liftIO (UTF8.toText <$> BS.getContents) @@ -968,13 +977,15 @@ options = , Option "F" ["filter"] (ReqArg - (\arg opt -> return opt { optFilters = arg : optFilters opt }) + (\arg opt -> return opt { optFilters = + JSONFilter arg : optFilters opt }) "PROGRAM") "" -- "External JSON filter" , Option "" ["lua-filter"] (ReqArg - (\arg opt -> return opt { optLuaFilters = arg : optLuaFilters opt }) + (\arg opt -> return opt { optFilters = + LuaFilter arg : optFilters opt }) "SCRIPTPATH") "" -- "Lua filter" @@ -1720,4 +1731,5 @@ deprecatedOption o msg = -- see https://github.com/jgm/pandoc/pull/4083 -- using generic deriving caused long compilation times $(deriveJSON defaultOptions ''LineEnding) +$(deriveJSON defaultOptions ''Filter) $(deriveJSON defaultOptions ''Opt) |