{-# LANGUAGE CPP                 #-}
{-# LANGUAGE FlexibleContexts    #-}
{-# LANGUAGE LambdaCase          #-}
{-# LANGUAGE OverloadedStrings   #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TupleSections       #-}
{- |
   Module      : Text.Pandoc.App
   Copyright   : Copyright (C) 2006-2023 John MacFarlane
   License     : GNU GPL, version 2 or above

   Maintainer  : John MacFarlane <jgm@berkeley@edu>
   Stability   : alpha
   Portability : portable

Does a pandoc conversion based on command-line options.
-}
module Text.Pandoc.App.OutputSettings
  ( OutputSettings (..)
  , optToOutputSettings
  ) where
import qualified Data.Map as M
import qualified Data.Text as T
import Text.DocTemplates (toVal, Context(..), Val(..))
import qualified Control.Exception as E
import Control.Monad
import Control.Monad.Except (throwError)
import Control.Monad.Trans
import Data.Char (toLower)
import Data.List (find)
import Data.Maybe (fromMaybe)
import Skylighting (defaultSyntaxMap)
import Skylighting.Parser (addSyntaxDefinition, parseSyntaxDefinition)
import System.Directory (getCurrentDirectory)
import System.Exit (exitSuccess)
import System.FilePath
import System.IO (stdout)
import Text.Pandoc.Chunks (PathTemplate(..))
import Text.Pandoc
import Text.Pandoc.App.Opt (Opt (..))
import Text.Pandoc.App.CommandLineOptions (engines)
import Text.Pandoc.Format (FlavoredFormat (..), applyExtensionsDiff,
                           parseFlavoredFormat, formatFromFilePaths)
import Text.Pandoc.Highlighting (lookupHighlightingStyle)
import Text.Pandoc.Scripting (ScriptingEngine (engineLoadCustom),
                              CustomComponents(..))
import qualified Text.Pandoc.UTF8 as UTF8

readUtf8File :: PandocMonad m => FilePath -> m T.Text
readUtf8File :: forall (m :: * -> *). PandocMonad m => FilePath -> m Text
readUtf8File = (ByteString -> Text) -> m ByteString -> m Text
forall a b. (a -> b) -> m a -> m b
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap ByteString -> Text
UTF8.toText (m ByteString -> m Text)
-> (FilePath -> m ByteString) -> FilePath -> m Text
forall b c a. (b -> c) -> (a -> b) -> a -> c
. FilePath -> m ByteString
forall (m :: * -> *). PandocMonad m => FilePath -> m ByteString
readFileStrict

-- | Settings specifying how document output should be produced.
data OutputSettings m = OutputSettings
  { forall (m :: * -> *). OutputSettings m -> Text
outputFormat :: T.Text
  , forall (m :: * -> *). OutputSettings m -> Writer m
outputWriter :: Writer m
  , forall (m :: * -> *). OutputSettings m -> WriterOptions
outputWriterOptions :: WriterOptions
  , forall (m :: * -> *). OutputSettings m -> Maybe FilePath
outputPdfProgram :: Maybe String
  }

-- | Get output settings from command line options.
optToOutputSettings :: (PandocMonad m, MonadIO m)
                    => ScriptingEngine -> Opt -> m (OutputSettings m)
optToOutputSettings :: forall (m :: * -> *).
(PandocMonad m, MonadIO m) =>
ScriptingEngine -> Opt -> m (OutputSettings m)
optToOutputSettings ScriptingEngine
scriptingEngine Opt
opts = do
  let outputFile :: FilePath
outputFile = FilePath -> Maybe FilePath -> FilePath
forall a. a -> Maybe a -> a
fromMaybe FilePath
"-" (Opt -> Maybe FilePath
optOutputFile Opt
opts)

  Bool -> m () -> m ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (Opt -> Bool
optDumpArgs Opt
opts) (m () -> m ()) -> (IO () -> m ()) -> IO () -> m ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. IO () -> m ()
forall a. IO a -> m a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO () -> m ()) -> IO () -> m ()
forall a b. (a -> b) -> a -> b
$ do
    Handle -> Text -> IO ()
UTF8.hPutStrLn Handle
stdout (FilePath -> Text
T.pack FilePath
outputFile)
    (FilePath -> IO ()) -> [FilePath] -> IO ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Handle -> Text -> IO ()
UTF8.hPutStrLn Handle
stdout (Text -> IO ()) -> (FilePath -> Text) -> FilePath -> IO ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. FilePath -> Text
T.pack) ([FilePath] -> Maybe [FilePath] -> [FilePath]
forall a. a -> Maybe a -> a
fromMaybe [] (Maybe [FilePath] -> [FilePath]) -> Maybe [FilePath] -> [FilePath]
forall a b. (a -> b) -> a -> b
$ Opt -> Maybe [FilePath]
optInputFiles Opt
opts)
    IO ()
forall a. IO a
exitSuccess

  Maybe Text
epubMetadata <- (FilePath -> m Text) -> Maybe FilePath -> m (Maybe Text)
forall (t :: * -> *) (f :: * -> *) a b.
(Traversable t, Applicative f) =>
(a -> f b) -> t a -> f (t b)
forall (f :: * -> *) a b.
Applicative f =>
(a -> f b) -> Maybe a -> f (Maybe b)
traverse FilePath -> m Text
forall (m :: * -> *). PandocMonad m => FilePath -> m Text
readUtf8File (Maybe FilePath -> m (Maybe Text))
-> Maybe FilePath -> m (Maybe Text)
forall a b. (a -> b) -> a -> b
$ Opt -> Maybe FilePath
optEpubMetadata Opt
opts

  let pdfOutput :: Bool
pdfOutput = (Char -> Char) -> FilePath -> FilePath
forall a b. (a -> b) -> [a] -> [b]
map Char -> Char
toLower (FilePath -> FilePath
takeExtension FilePath
outputFile) FilePath -> FilePath -> Bool
forall a. Eq a => a -> a -> Bool
== FilePath
".pdf" Bool -> Bool -> Bool
||
                  Opt -> Maybe Text
optTo Opt
opts Maybe Text -> Maybe Text -> Bool
forall a. Eq a => a -> a -> Bool
== Text -> Maybe Text
forall a. a -> Maybe a
Just Text
"pdf"
  let defaultOutput :: Text
defaultOutput = Text
"html"
  FlavoredFormat
defaultOutputFlavor <- Text -> m FlavoredFormat
forall (m :: * -> *). PandocMonad m => Text -> m FlavoredFormat
parseFlavoredFormat Text
defaultOutput
  (flvrd :: FlavoredFormat
flvrd@(FlavoredFormat Text
format ExtensionsDiff
_extsDiff), Maybe FilePath
maybePdfProg) <-
    if Bool
pdfOutput
       then do
         Maybe FlavoredFormat
outflavor <- case Opt -> Maybe Text
optTo Opt
opts of
                        Just Text
x | Text
x Text -> Text -> Bool
forall a. Eq a => a -> a -> Bool
/= Text
"pdf" -> FlavoredFormat -> Maybe FlavoredFormat
forall a. a -> Maybe a
Just (FlavoredFormat -> Maybe FlavoredFormat)
-> m FlavoredFormat -> m (Maybe FlavoredFormat)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Text -> m FlavoredFormat
forall (m :: * -> *). PandocMonad m => Text -> m FlavoredFormat
parseFlavoredFormat Text
x
                        Maybe Text
_ -> Maybe FlavoredFormat -> m (Maybe FlavoredFormat)
forall a. a -> m a
forall (f :: * -> *) a. Applicative f => a -> f a
pure Maybe FlavoredFormat
forall a. Maybe a
Nothing
         IO (FlavoredFormat, Maybe FilePath)
-> m (FlavoredFormat, Maybe FilePath)
forall a. IO a -> m a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (FlavoredFormat, Maybe FilePath)
 -> m (FlavoredFormat, Maybe FilePath))
-> IO (FlavoredFormat, Maybe FilePath)
-> m (FlavoredFormat, Maybe FilePath)
forall a b. (a -> b) -> a -> b
$ Maybe FlavoredFormat
-> Maybe FilePath -> IO (FlavoredFormat, Maybe FilePath)
pdfWriterAndProg Maybe FlavoredFormat
outflavor (Opt -> Maybe FilePath
optPdfEngine Opt
opts)
       else case Opt -> Maybe Text
optTo Opt
opts of
              Just Text
f -> (, Maybe FilePath
forall a. Maybe a
Nothing) (FlavoredFormat -> (FlavoredFormat, Maybe FilePath))
-> m FlavoredFormat -> m (FlavoredFormat, Maybe FilePath)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Text -> m FlavoredFormat
forall (m :: * -> *). PandocMonad m => Text -> m FlavoredFormat
parseFlavoredFormat Text
f
              Maybe Text
Nothing
               | FilePath
outputFile FilePath -> FilePath -> Bool
forall a. Eq a => a -> a -> Bool
== FilePath
"-" ->
                   (FlavoredFormat, Maybe FilePath)
-> m (FlavoredFormat, Maybe FilePath)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (FlavoredFormat
defaultOutputFlavor, Maybe FilePath
forall a. Maybe a
Nothing)
               | Bool
otherwise -> case [FilePath] -> Maybe FlavoredFormat
formatFromFilePaths [FilePath
outputFile] of
                   Maybe FlavoredFormat
Nothing -> do
                     LogMessage -> m ()
forall (m :: * -> *). PandocMonad m => LogMessage -> m ()
report (LogMessage -> m ()) -> LogMessage -> m ()
forall a b. (a -> b) -> a -> b
$ [Text] -> Text -> LogMessage
CouldNotDeduceFormat
                       [FilePath -> Text
T.pack (FilePath -> Text) -> FilePath -> Text
forall a b. (a -> b) -> a -> b
$ FilePath -> FilePath
takeExtension FilePath
outputFile] Text
defaultOutput
                     (FlavoredFormat, Maybe FilePath)
-> m (FlavoredFormat, Maybe FilePath)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (FlavoredFormat
defaultOutputFlavor,Maybe FilePath
forall a. Maybe a
Nothing)
                   Just FlavoredFormat
f  -> (FlavoredFormat, Maybe FilePath)
-> m (FlavoredFormat, Maybe FilePath)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (FlavoredFormat
f, Maybe FilePath
forall a. Maybe a
Nothing)

  let makeSandboxed :: Writer PandocPure -> Writer m
makeSandboxed Writer PandocPure
pureWriter =
          let files :: [FilePath]
files = ([FilePath] -> [FilePath])
-> (FilePath -> [FilePath] -> [FilePath])
-> Maybe FilePath
-> [FilePath]
-> [FilePath]
forall b a. b -> (a -> b) -> Maybe a -> b
maybe [FilePath] -> [FilePath]
forall a. a -> a
id (:) (Opt -> Maybe FilePath
optReferenceDoc Opt
opts) ([FilePath] -> [FilePath])
-> ([FilePath] -> [FilePath]) -> [FilePath] -> [FilePath]
forall b c a. (b -> c) -> (a -> b) -> a -> c
.
                      ([FilePath] -> [FilePath])
-> (FilePath -> [FilePath] -> [FilePath])
-> Maybe FilePath
-> [FilePath]
-> [FilePath]
forall b a. b -> (a -> b) -> Maybe a -> b
maybe [FilePath] -> [FilePath]
forall a. a -> a
id (:) (Opt -> Maybe FilePath
optEpubMetadata Opt
opts) ([FilePath] -> [FilePath])
-> ([FilePath] -> [FilePath]) -> [FilePath] -> [FilePath]
forall b c a. (b -> c) -> (a -> b) -> a -> c
.
                      ([FilePath] -> [FilePath])
-> (FilePath -> [FilePath] -> [FilePath])
-> Maybe FilePath
-> [FilePath]
-> [FilePath]
forall b a. b -> (a -> b) -> Maybe a -> b
maybe [FilePath] -> [FilePath]
forall a. a -> a
id (:) (Opt -> Maybe FilePath
optEpubCoverImage Opt
opts) ([FilePath] -> [FilePath])
-> ([FilePath] -> [FilePath]) -> [FilePath] -> [FilePath]
forall b c a. (b -> c) -> (a -> b) -> a -> c
.
                      ([FilePath] -> [FilePath])
-> (FilePath -> [FilePath] -> [FilePath])
-> Maybe FilePath
-> [FilePath]
-> [FilePath]
forall b a. b -> (a -> b) -> Maybe a -> b
maybe [FilePath] -> [FilePath]
forall a. a -> a
id (:) (Opt -> Maybe FilePath
optCSL Opt
opts) ([FilePath] -> [FilePath])
-> ([FilePath] -> [FilePath]) -> [FilePath] -> [FilePath]
forall b c a. (b -> c) -> (a -> b) -> a -> c
.
                      ([FilePath] -> [FilePath])
-> (FilePath -> [FilePath] -> [FilePath])
-> Maybe FilePath
-> [FilePath]
-> [FilePath]
forall b a. b -> (a -> b) -> Maybe a -> b
maybe [FilePath] -> [FilePath]
forall a. a -> a
id (:) (Opt -> Maybe FilePath
optCitationAbbreviations Opt
opts) ([FilePath] -> [FilePath]) -> [FilePath] -> [FilePath]
forall a b. (a -> b) -> a -> b
$
                      Opt -> [FilePath]
optEpubFonts Opt
opts [FilePath] -> [FilePath] -> [FilePath]
forall a. [a] -> [a] -> [a]
++
                      Opt -> [FilePath]
optBibliography Opt
opts
           in  case Writer PandocPure
pureWriter of
                 TextWriter WriterOptions -> Pandoc -> PandocPure Text
w -> (WriterOptions -> Pandoc -> m Text) -> Writer m
forall (m :: * -> *).
(WriterOptions -> Pandoc -> m Text) -> Writer m
TextWriter ((WriterOptions -> Pandoc -> m Text) -> Writer m)
-> (WriterOptions -> Pandoc -> m Text) -> Writer m
forall a b. (a -> b) -> a -> b
$ \WriterOptions
o Pandoc
d -> [FilePath] -> PandocPure Text -> m Text
forall (m :: * -> *) a.
(PandocMonad m, MonadIO m) =>
[FilePath] -> PandocPure a -> m a
sandbox [FilePath]
files (WriterOptions -> Pandoc -> PandocPure Text
w WriterOptions
o Pandoc
d)
                 ByteStringWriter WriterOptions -> Pandoc -> PandocPure ByteString
w ->
                   (WriterOptions -> Pandoc -> m ByteString) -> Writer m
forall (m :: * -> *).
(WriterOptions -> Pandoc -> m ByteString) -> Writer m
ByteStringWriter ((WriterOptions -> Pandoc -> m ByteString) -> Writer m)
-> (WriterOptions -> Pandoc -> m ByteString) -> Writer m
forall a b. (a -> b) -> a -> b
$ \WriterOptions
o Pandoc
d -> [FilePath] -> PandocPure ByteString -> m ByteString
forall (m :: * -> *) a.
(PandocMonad m, MonadIO m) =>
[FilePath] -> PandocPure a -> m a
sandbox [FilePath]
files (WriterOptions -> Pandoc -> PandocPure ByteString
w WriterOptions
o Pandoc
d)

  let standalone :: Bool
standalone = Opt -> Bool
optStandalone Opt
opts Bool -> Bool -> Bool
|| Text -> Bool
isBinaryFormat Text
format Bool -> Bool -> Bool
|| Bool
pdfOutput
  let templateOrThrow :: Either FilePath a -> m a
templateOrThrow = \case
        Left  FilePath
e -> PandocError -> m a
forall a. PandocError -> m a
forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError (PandocError -> m a) -> PandocError -> m a
forall a b. (a -> b) -> a -> b
$ Text -> PandocError
PandocTemplateError (FilePath -> Text
T.pack FilePath
e)
        Right a
t -> a -> m a
forall a. a -> m a
forall (f :: * -> *) a. Applicative f => a -> f a
pure a
t
  let processCustomTemplate :: m (Template a) -> m (Maybe (Template a))
processCustomTemplate m (Template a)
getDefault =
        case Opt -> Maybe FilePath
optTemplate Opt
opts of
          Maybe FilePath
_ | Bool -> Bool
not Bool
standalone -> Maybe (Template a) -> m (Maybe (Template a))
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe (Template a)
forall a. Maybe a
Nothing
          Maybe FilePath
Nothing -> Template a -> Maybe (Template a)
forall a. a -> Maybe a
Just (Template a -> Maybe (Template a))
-> m (Template a) -> m (Maybe (Template a))
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> m (Template a)
getDefault
          Just FilePath
tp -> do
            -- strip off extensions
            let tp' :: FilePath
tp' = case FilePath -> FilePath
takeExtension FilePath
tp of
                        FilePath
"" -> FilePath
tp FilePath -> FilePath -> FilePath
<.> Text -> FilePath
T.unpack Text
format
                        FilePath
_  -> FilePath
tp
            FilePath -> m Text
forall (m :: * -> *). PandocMonad m => FilePath -> m Text
getTemplate FilePath
tp'
              m Text
-> (Text -> m (Either FilePath (Template a)))
-> m (Either FilePath (Template a))
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= WithPartials m (Either FilePath (Template a))
-> m (Either FilePath (Template a))
forall (m :: * -> *) a. WithPartials m a -> m a
runWithPartials (WithPartials m (Either FilePath (Template a))
 -> m (Either FilePath (Template a)))
-> (Text -> WithPartials m (Either FilePath (Template a)))
-> Text
-> m (Either FilePath (Template a))
forall b c a. (b -> c) -> (a -> b) -> a -> c
. FilePath -> Text -> WithPartials m (Either FilePath (Template a))
forall (m :: * -> *) a.
(TemplateMonad m, TemplateTarget a) =>
FilePath -> Text -> m (Either FilePath (Template a))
compileTemplate FilePath
tp'
              m (Either FilePath (Template a))
-> (Either FilePath (Template a) -> m (Maybe (Template a)))
-> m (Maybe (Template a))
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= (Template a -> Maybe (Template a))
-> m (Template a) -> m (Maybe (Template a))
forall a b. (a -> b) -> m a -> m b
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap Template a -> Maybe (Template a)
forall a. a -> Maybe a
Just (m (Template a) -> m (Maybe (Template a)))
-> (Either FilePath (Template a) -> m (Template a))
-> Either FilePath (Template a)
-> m (Maybe (Template a))
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Either FilePath (Template a) -> m (Template a)
forall {a}. Either FilePath a -> m a
templateOrThrow

  (Writer m
writer, Extensions
writerExts, Maybe (Template Text)
mtemplate) <-
    if Text
"lua" Text -> Text -> Bool
`T.isSuffixOf` Text
format
    then do
      let path :: FilePath
path = Text -> FilePath
T.unpack Text
format
      CustomComponents m
components <- ScriptingEngine
-> forall (m :: * -> *).
   (PandocMonad m, MonadIO m) =>
   FilePath -> m (CustomComponents m)
engineLoadCustom ScriptingEngine
scriptingEngine FilePath
path
      Writer m
w <- case CustomComponents m -> Maybe (Writer m)
forall (m :: * -> *). CustomComponents m -> Maybe (Writer m)
customWriter CustomComponents m
components of
             Maybe (Writer m)
Nothing -> PandocError -> m (Writer m)
forall a. PandocError -> m a
forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError (PandocError -> m (Writer m)) -> PandocError -> m (Writer m)
forall a b. (a -> b) -> a -> b
$ Text -> PandocError
PandocAppError (Text -> PandocError) -> Text -> PandocError
forall a b. (a -> b) -> a -> b
$
                         Text
format Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
" does not contain a custom writer"
             Just Writer m
w -> Writer m -> m (Writer m)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return Writer m
w
      let extsConf :: ExtensionsConfig
extsConf = ExtensionsConfig -> Maybe ExtensionsConfig -> ExtensionsConfig
forall a. a -> Maybe a -> a
fromMaybe ExtensionsConfig
forall a. Monoid a => a
mempty (Maybe ExtensionsConfig -> ExtensionsConfig)
-> Maybe ExtensionsConfig -> ExtensionsConfig
forall a b. (a -> b) -> a -> b
$ CustomComponents m -> Maybe ExtensionsConfig
forall (m :: * -> *). CustomComponents m -> Maybe ExtensionsConfig
customExtensions CustomComponents m
components
      Extensions
wexts <- ExtensionsConfig -> FlavoredFormat -> m Extensions
forall (m :: * -> *).
PandocMonad m =>
ExtensionsConfig -> FlavoredFormat -> m Extensions
applyExtensionsDiff ExtensionsConfig
extsConf FlavoredFormat
flvrd
      Maybe (Template Text)
templ <- m (Template Text) -> m (Maybe (Template Text))
forall {a}.
(HasChars a, ToText a, FromText a) =>
m (Template a) -> m (Maybe (Template a))
processCustomTemplate (m (Template Text) -> m (Maybe (Template Text)))
-> m (Template Text) -> m (Maybe (Template Text))
forall a b. (a -> b) -> a -> b
$
               case CustomComponents m -> Maybe Text
forall (m :: * -> *). CustomComponents m -> Maybe Text
customTemplate CustomComponents m
components of
                 Maybe Text
Nothing -> PandocError -> m (Template Text)
forall a. PandocError -> m a
forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError (PandocError -> m (Template Text))
-> PandocError -> m (Template Text)
forall a b. (a -> b) -> a -> b
$ Text -> PandocError
PandocNoTemplateError Text
format
                 Just Text
t -> (WithDefaultPartials m (Either FilePath (Template Text))
-> m (Either FilePath (Template Text))
forall (m :: * -> *) a. WithDefaultPartials m a -> m a
runWithDefaultPartials (WithDefaultPartials m (Either FilePath (Template Text))
 -> m (Either FilePath (Template Text)))
-> WithDefaultPartials m (Either FilePath (Template Text))
-> m (Either FilePath (Template Text))
forall a b. (a -> b) -> a -> b
$ FilePath
-> Text -> WithDefaultPartials m (Either FilePath (Template Text))
forall (m :: * -> *) a.
(TemplateMonad m, TemplateTarget a) =>
FilePath -> Text -> m (Either FilePath (Template a))
compileTemplate FilePath
path Text
t) m (Either FilePath (Template Text))
-> (Either FilePath (Template Text) -> m (Template Text))
-> m (Template Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
                           Either FilePath (Template Text) -> m (Template Text)
forall {a}. Either FilePath a -> m a
templateOrThrow
      (Writer m, Extensions, Maybe (Template Text))
-> m (Writer m, Extensions, Maybe (Template Text))
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (Writer m
w, Extensions
wexts, Maybe (Template Text)
templ)
    else do
      Maybe (Template Text)
tmpl <- m (Template Text) -> m (Maybe (Template Text))
forall {a}.
(HasChars a, ToText a, FromText a) =>
m (Template a) -> m (Maybe (Template a))
processCustomTemplate (Text -> m (Template Text)
forall (m :: * -> *). PandocMonad m => Text -> m (Template Text)
compileDefaultTemplate Text
format)
      if Opt -> Bool
optSandbox Opt
opts
      then case PandocPure (Writer PandocPure, Extensions)
-> Either PandocError (Writer PandocPure, Extensions)
forall a. PandocPure a -> Either PandocError a
runPure (FlavoredFormat -> PandocPure (Writer PandocPure, Extensions)
forall (m :: * -> *).
PandocMonad m =>
FlavoredFormat -> m (Writer m, Extensions)
getWriter FlavoredFormat
flvrd) of
             Right (Writer PandocPure
w, Extensions
wexts) -> (Writer m, Extensions, Maybe (Template Text))
-> m (Writer m, Extensions, Maybe (Template Text))
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (Writer PandocPure -> Writer m
forall {m :: * -> *}.
(PandocMonad m, MonadIO m) =>
Writer PandocPure -> Writer m
makeSandboxed Writer PandocPure
w, Extensions
wexts, Maybe (Template Text)
tmpl)
             Left PandocError
e           -> PandocError -> m (Writer m, Extensions, Maybe (Template Text))
forall a. PandocError -> m a
forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError PandocError
e
      else do
           (Writer m
w, Extensions
wexts) <- FlavoredFormat -> m (Writer m, Extensions)
forall (m :: * -> *).
PandocMonad m =>
FlavoredFormat -> m (Writer m, Extensions)
getWriter FlavoredFormat
flvrd
           (Writer m, Extensions, Maybe (Template Text))
-> m (Writer m, Extensions, Maybe (Template Text))
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (Writer m
w, Extensions
wexts, Maybe (Template Text)
tmpl)


  let addSyntaxMap :: SyntaxMap -> FilePath -> m SyntaxMap
addSyntaxMap SyntaxMap
existingmap FilePath
f = do
        Either FilePath Syntax
res <- IO (Either FilePath Syntax) -> m (Either FilePath Syntax)
forall a. IO a -> m a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (FilePath -> IO (Either FilePath Syntax)
parseSyntaxDefinition FilePath
f)
        case Either FilePath Syntax
res of
              Left FilePath
errstr -> PandocError -> m SyntaxMap
forall a. PandocError -> m a
forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError (PandocError -> m SyntaxMap) -> PandocError -> m SyntaxMap
forall a b. (a -> b) -> a -> b
$ Text -> PandocError
PandocSyntaxMapError (Text -> PandocError) -> Text -> PandocError
forall a b. (a -> b) -> a -> b
$ FilePath -> Text
T.pack FilePath
errstr
              Right Syntax
syn   -> SyntaxMap -> m SyntaxMap
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (SyntaxMap -> m SyntaxMap) -> SyntaxMap -> m SyntaxMap
forall a b. (a -> b) -> a -> b
$ Syntax -> SyntaxMap -> SyntaxMap
addSyntaxDefinition Syntax
syn SyntaxMap
existingmap

  SyntaxMap
syntaxMap <- (SyntaxMap -> FilePath -> m SyntaxMap)
-> SyntaxMap -> [FilePath] -> m SyntaxMap
forall (t :: * -> *) (m :: * -> *) b a.
(Foldable t, Monad m) =>
(b -> a -> m b) -> b -> t a -> m b
foldM SyntaxMap -> FilePath -> m SyntaxMap
forall {m :: * -> *}.
(MonadIO m, MonadError PandocError m) =>
SyntaxMap -> FilePath -> m SyntaxMap
addSyntaxMap SyntaxMap
defaultSyntaxMap
                     (Opt -> [FilePath]
optSyntaxDefinitions Opt
opts)

  Maybe Style
hlStyle <- (Text -> m Style) -> Maybe Text -> m (Maybe Style)
forall (t :: * -> *) (f :: * -> *) a b.
(Traversable t, Applicative f) =>
(a -> f b) -> t a -> f (t b)
forall (f :: * -> *) a b.
Applicative f =>
(a -> f b) -> Maybe a -> f (Maybe b)
traverse (FilePath -> m Style
forall (m :: * -> *). PandocMonad m => FilePath -> m Style
lookupHighlightingStyle (FilePath -> m Style) -> (Text -> FilePath) -> Text -> m Style
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Text -> FilePath
T.unpack) (Maybe Text -> m (Maybe Style)) -> Maybe Text -> m (Maybe Style)
forall a b. (a -> b) -> a -> b
$
               Opt -> Maybe Text
optHighlightStyle Opt
opts

  let setListVariableM :: Text -> [a] -> Context a -> m (Context a)
setListVariableM Text
_ [] Context a
ctx = Context a -> m (Context a)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return Context a
ctx
      setListVariableM Text
k [a]
vs Context a
ctx = do
        let ctxMap :: Map Text (Val a)
ctxMap = Context a -> Map Text (Val a)
forall a. Context a -> Map Text (Val a)
unContext Context a
ctx
        Context a -> m (Context a)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (Context a -> m (Context a)) -> Context a -> m (Context a)
forall a b. (a -> b) -> a -> b
$ Map Text (Val a) -> Context a
forall a. Map Text (Val a) -> Context a
Context (Map Text (Val a) -> Context a) -> Map Text (Val a) -> Context a
forall a b. (a -> b) -> a -> b
$
          case Text -> Map Text (Val a) -> Maybe (Val a)
forall k a. Ord k => k -> Map k a -> Maybe a
M.lookup Text
k Map Text (Val a)
ctxMap of
              Just (ListVal [Val a]
xs) -> Text -> Val a -> Map Text (Val a) -> Map Text (Val a)
forall k a. Ord k => k -> a -> Map k a -> Map k a
M.insert Text
k
                                  ([Val a] -> Val a
forall a. [Val a] -> Val a
ListVal ([Val a] -> Val a) -> [Val a] -> Val a
forall a b. (a -> b) -> a -> b
$ [Val a]
xs [Val a] -> [Val a] -> [Val a]
forall a. [a] -> [a] -> [a]
++ (a -> Val a) -> [a] -> [Val a]
forall a b. (a -> b) -> [a] -> [b]
map a -> Val a
forall a b. ToContext a b => b -> Val a
toVal [a]
vs) Map Text (Val a)
ctxMap
              Just Val a
v -> Text -> Val a -> Map Text (Val a) -> Map Text (Val a)
forall k a. Ord k => k -> a -> Map k a -> Map k a
M.insert Text
k
                         ([Val a] -> Val a
forall a. [Val a] -> Val a
ListVal ([Val a] -> Val a) -> [Val a] -> Val a
forall a b. (a -> b) -> a -> b
$ Val a
v Val a -> [Val a] -> [Val a]
forall a. a -> [a] -> [a]
: (a -> Val a) -> [a] -> [Val a]
forall a b. (a -> b) -> [a] -> [b]
map a -> Val a
forall a b. ToContext a b => b -> Val a
toVal [a]
vs) Map Text (Val a)
ctxMap
              Maybe (Val a)
Nothing -> Text -> Val a -> Map Text (Val a) -> Map Text (Val a)
forall k a. Ord k => k -> a -> Map k a -> Map k a
M.insert Text
k ([a] -> Val a
forall a b. ToContext a b => b -> Val a
toVal [a]
vs) Map Text (Val a)
ctxMap

  let getTextContents :: FilePath -> f Text
getTextContents FilePath
fp = ByteString -> Text
UTF8.toText (ByteString -> Text)
-> ((ByteString, Maybe Text) -> ByteString)
-> (ByteString, Maybe Text)
-> Text
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (ByteString, Maybe Text) -> ByteString
forall a b. (a, b) -> a
fst ((ByteString, Maybe Text) -> Text)
-> f (ByteString, Maybe Text) -> f Text
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Text -> f (ByteString, Maybe Text)
forall (m :: * -> *).
PandocMonad m =>
Text -> m (ByteString, Maybe Text)
fetchItem (FilePath -> Text
T.pack FilePath
fp)

  let setFilesVariableM :: Text -> [FilePath] -> Context a -> m (Context a)
setFilesVariableM Text
k [FilePath]
fps Context a
ctx = do
        [Text]
xs <- (FilePath -> m Text) -> [FilePath] -> m [Text]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
forall (m :: * -> *) a b. Monad m => (a -> m b) -> [a] -> m [b]
mapM FilePath -> m Text
forall (m :: * -> *). PandocMonad m => FilePath -> m Text
getTextContents [FilePath]
fps
        Text -> [Text] -> Context a -> m (Context a)
forall {m :: * -> *} {a} {a}.
(Monad m, ToContext a a, ToContext a [a]) =>
Text -> [a] -> Context a -> m (Context a)
setListVariableM Text
k [Text]
xs Context a
ctx

  FilePath
curdir <- IO FilePath -> m FilePath
forall a. IO a -> m a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO IO FilePath
getCurrentDirectory

  Context Text
variables <-
    Context Text -> m (Context Text)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (Opt -> Context Text
optVariables Opt
opts)
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    Text -> [Text] -> Context Text -> m (Context Text)
forall {m :: * -> *} {a} {a}.
(Monad m, ToContext a a, ToContext a [a]) =>
Text -> [a] -> Context a -> m (Context a)
setListVariableM Text
"sourcefile"
      ([Text] -> ([FilePath] -> [Text]) -> Maybe [FilePath] -> [Text]
forall b a. b -> (a -> b) -> Maybe a -> b
maybe [Text
"-"] ((FilePath -> Text) -> [FilePath] -> [Text]
forall a b. (a -> b) -> [a] -> [b]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap FilePath -> Text
T.pack) (Opt -> Maybe [FilePath]
optInputFiles Opt
opts))
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    Text -> Text -> Context Text -> m (Context Text)
forall (m :: * -> *).
Monad m =>
Text -> Text -> Context Text -> m (Context Text)
setVariableM Text
"outputfile" (FilePath -> Text
T.pack FilePath
outputFile)
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    Text -> Text -> Context Text -> m (Context Text)
forall (m :: * -> *).
Monad m =>
Text -> Text -> Context Text -> m (Context Text)
setVariableM Text
"pandoc-version" Text
pandocVersionText
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    Text -> [FilePath] -> Context Text -> m (Context Text)
forall {m :: * -> *} {a}.
(PandocMonad m, ToContext a [Text], ToContext a Text) =>
Text -> [FilePath] -> Context a -> m (Context a)
setFilesVariableM Text
"include-before" (Opt -> [FilePath]
optIncludeBeforeBody Opt
opts)
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    Text -> [FilePath] -> Context Text -> m (Context Text)
forall {m :: * -> *} {a}.
(PandocMonad m, ToContext a [Text], ToContext a Text) =>
Text -> [FilePath] -> Context a -> m (Context a)
setFilesVariableM Text
"include-after" (Opt -> [FilePath]
optIncludeAfterBody Opt
opts)
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    Text -> [FilePath] -> Context Text -> m (Context Text)
forall {m :: * -> *} {a}.
(PandocMonad m, ToContext a [Text], ToContext a Text) =>
Text -> [FilePath] -> Context a -> m (Context a)
setFilesVariableM Text
"header-includes" (Opt -> [FilePath]
optIncludeInHeader Opt
opts)
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    Text -> [Text] -> Context Text -> m (Context Text)
forall {m :: * -> *} {a} {a}.
(Monad m, ToContext a a, ToContext a [a]) =>
Text -> [a] -> Context a -> m (Context a)
setListVariableM Text
"css" ((FilePath -> Text) -> [FilePath] -> [Text]
forall a b. (a -> b) -> [a] -> [b]
map FilePath -> Text
T.pack ([FilePath] -> [Text]) -> [FilePath] -> [Text]
forall a b. (a -> b) -> a -> b
$ Opt -> [FilePath]
optCss Opt
opts)
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    (Context Text -> m (Context Text))
-> (Text -> Context Text -> m (Context Text))
-> Maybe Text
-> Context Text
-> m (Context Text)
forall b a. b -> (a -> b) -> Maybe a -> b
maybe Context Text -> m (Context Text)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (Text -> Text -> Context Text -> m (Context Text)
forall (m :: * -> *).
Monad m =>
Text -> Text -> Context Text -> m (Context Text)
setVariableM Text
"title-prefix") (Opt -> Maybe Text
optTitlePrefix Opt
opts)
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    (Context Text -> m (Context Text))
-> (FilePath -> Context Text -> m (Context Text))
-> Maybe FilePath
-> Context Text
-> m (Context Text)
forall b a. b -> (a -> b) -> Maybe a -> b
maybe Context Text -> m (Context Text)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (Text -> Text -> Context Text -> m (Context Text)
forall (m :: * -> *).
Monad m =>
Text -> Text -> Context Text -> m (Context Text)
setVariableM Text
"epub-cover-image" (Text -> Context Text -> m (Context Text))
-> (FilePath -> Text)
-> FilePath
-> Context Text
-> m (Context Text)
forall b c a. (b -> c) -> (a -> b) -> a -> c
. FilePath -> Text
T.pack)
                 (Opt -> Maybe FilePath
optEpubCoverImage Opt
opts)
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    Text -> Text -> Context Text -> m (Context Text)
forall (m :: * -> *).
Monad m =>
Text -> Text -> Context Text -> m (Context Text)
setVariableM Text
"curdir" (FilePath -> Text
T.pack FilePath
curdir)
    m (Context Text)
-> (Context Text -> m (Context Text)) -> m (Context Text)
forall a b. m a -> (a -> m b) -> m b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
    (\Context Text
vars ->  if Text
format Text -> Text -> Bool
forall a. Eq a => a -> a -> Bool
== Text
"dzslides"
                  then do
                      Text
dztempl <- ByteString -> Text
UTF8.toText (ByteString -> Text) -> m ByteString -> m Text
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> FilePath -> m ByteString
forall (m :: * -> *). PandocMonad m => FilePath -> m ByteString
readDataFile
                                   (FilePath
"dzslides" FilePath -> FilePath -> FilePath
</> FilePath
"template.html")
                      let dzline :: Text
dzline = Text
"<!-- {{{{ dzslides core"
                      let dzcore :: Text
dzcore = [Text] -> Text
T.unlines
                                 ([Text] -> Text) -> [Text] -> Text
forall a b. (a -> b) -> a -> b
$ (Text -> Bool) -> [Text] -> [Text]
forall a. (a -> Bool) -> [a] -> [a]
dropWhile (Bool -> Bool
not (Bool -> Bool) -> (Text -> Bool) -> Text -> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Text
dzline Text -> Text -> Bool
`T.isPrefixOf`))
                                 ([Text] -> [Text]) -> [Text] -> [Text]
forall a b. (a -> b) -> a -> b
$ Text -> [Text]
T.lines Text
dztempl
                      Text -> Text -> Context Text -> m (Context Text)
forall (m :: * -> *).
Monad m =>
Text -> Text -> Context Text -> m (Context Text)
setVariableM Text
"dzslides-core" Text
dzcore Context Text
vars
                  else Context Text -> m (Context Text)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return Context Text
vars)

  let writerOpts :: WriterOptions
writerOpts = WriterOptions
forall a. Default a => a
def {
          writerTemplate :: Maybe (Template Text)
writerTemplate         = Maybe (Template Text)
mtemplate
        , writerVariables :: Context Text
writerVariables        = Context Text
variables
        , writerTabStop :: Int
writerTabStop          = Opt -> Int
optTabStop Opt
opts
        , writerTableOfContents :: Bool
writerTableOfContents  = Opt -> Bool
optTableOfContents Opt
opts
        , writerHTMLMathMethod :: HTMLMathMethod
writerHTMLMathMethod   = Opt -> HTMLMathMethod
optHTMLMathMethod Opt
opts
        , writerIncremental :: Bool
writerIncremental      = Opt -> Bool
optIncremental Opt
opts
        , writerCiteMethod :: CiteMethod
writerCiteMethod       = Opt -> CiteMethod
optCiteMethod Opt
opts
        , writerNumberSections :: Bool
writerNumberSections   = Opt -> Bool
optNumberSections Opt
opts
        , writerNumberOffset :: [Int]
writerNumberOffset     = Opt -> [Int]
optNumberOffset Opt
opts
        , writerSectionDivs :: Bool
writerSectionDivs      = Opt -> Bool
optSectionDivs Opt
opts
        , writerExtensions :: Extensions
writerExtensions       = Extensions
writerExts
        , writerReferenceLinks :: Bool
writerReferenceLinks   = Opt -> Bool
optReferenceLinks Opt
opts
        , writerReferenceLocation :: ReferenceLocation
writerReferenceLocation = Opt -> ReferenceLocation
optReferenceLocation Opt
opts
        , writerDpi :: Int
writerDpi              = Opt -> Int
optDpi Opt
opts
        , writerWrapText :: WrapOption
writerWrapText         = Opt -> WrapOption
optWrap Opt
opts
        , writerColumns :: Int
writerColumns          = Opt -> Int
optColumns Opt
opts
        , writerEmailObfuscation :: ObfuscationMethod
writerEmailObfuscation = Opt -> ObfuscationMethod
optEmailObfuscation Opt
opts
        , writerIdentifierPrefix :: Text
writerIdentifierPrefix = Opt -> Text
optIdentifierPrefix Opt
opts
        , writerHtmlQTags :: Bool
writerHtmlQTags        = Opt -> Bool
optHtmlQTags Opt
opts
        , writerTopLevelDivision :: TopLevelDivision
writerTopLevelDivision = Opt -> TopLevelDivision
optTopLevelDivision Opt
opts
        , writerListings :: Bool
writerListings         = Opt -> Bool
optListings Opt
opts
        , writerSlideLevel :: Maybe Int
writerSlideLevel       = Opt -> Maybe Int
optSlideLevel Opt
opts
        , writerHighlightStyle :: Maybe Style
writerHighlightStyle   = Maybe Style
hlStyle
        , writerSetextHeaders :: Bool
writerSetextHeaders    = Opt -> Bool
optSetextHeaders Opt
opts
        , writerListTables :: Bool
writerListTables       = Opt -> Bool
optListTables Opt
opts
        , writerEpubSubdirectory :: Text
writerEpubSubdirectory = FilePath -> Text
T.pack (FilePath -> Text) -> FilePath -> Text
forall a b. (a -> b) -> a -> b
$ Opt -> FilePath
optEpubSubdirectory Opt
opts
        , writerEpubMetadata :: Maybe Text
writerEpubMetadata     = Maybe Text
epubMetadata
        , writerEpubFonts :: [FilePath]
writerEpubFonts        = Opt -> [FilePath]
optEpubFonts Opt
opts
        , writerEpubTitlePage :: Bool
writerEpubTitlePage    = Opt -> Bool
optEpubTitlePage Opt
opts
        , writerSplitLevel :: Int
writerSplitLevel       = Opt -> Int
optSplitLevel Opt
opts
        , writerChunkTemplate :: PathTemplate
writerChunkTemplate    = PathTemplate
-> (Text -> PathTemplate) -> Maybe Text -> PathTemplate
forall b a. b -> (a -> b) -> Maybe a -> b
maybe (Text -> PathTemplate
PathTemplate Text
"%s-%i.html")
                                     Text -> PathTemplate
PathTemplate
                                     (Opt -> Maybe Text
optChunkTemplate Opt
opts)
        , writerTOCDepth :: Int
writerTOCDepth         = Opt -> Int
optTOCDepth Opt
opts
        , writerReferenceDoc :: Maybe FilePath
writerReferenceDoc     = Opt -> Maybe FilePath
optReferenceDoc Opt
opts
        , writerSyntaxMap :: SyntaxMap
writerSyntaxMap        = SyntaxMap
syntaxMap
        , writerPreferAscii :: Bool
writerPreferAscii      = Opt -> Bool
optAscii Opt
opts
        }
  OutputSettings m -> m (OutputSettings m)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (OutputSettings m -> m (OutputSettings m))
-> OutputSettings m -> m (OutputSettings m)
forall a b. (a -> b) -> a -> b
$ OutputSettings
    { outputFormat :: Text
outputFormat = Text
format
    , outputWriter :: Writer m
outputWriter = Writer m
writer
    , outputWriterOptions :: WriterOptions
outputWriterOptions = WriterOptions
writerOpts
    , outputPdfProgram :: Maybe FilePath
outputPdfProgram = Maybe FilePath
maybePdfProg
    }

-- | Set text value in text context unless it is already set.
setVariableM :: Monad m
             => T.Text -> T.Text -> Context T.Text -> m (Context T.Text)
setVariableM :: forall (m :: * -> *).
Monad m =>
Text -> Text -> Context Text -> m (Context Text)
setVariableM Text
key Text
val (Context Map Text (Val Text)
ctx) = Context Text -> m (Context Text)
forall a. a -> m a
forall (m :: * -> *) a. Monad m => a -> m a
return (Context Text -> m (Context Text))
-> Context Text -> m (Context Text)
forall a b. (a -> b) -> a -> b
$ Map Text (Val Text) -> Context Text
forall a. Map Text (Val a) -> Context a
Context (Map Text (Val Text) -> Context Text)
-> Map Text (Val Text) -> Context Text
forall a b. (a -> b) -> a -> b
$ (Maybe (Val Text) -> Maybe (Val Text))
-> Text -> Map Text (Val Text) -> Map Text (Val Text)
forall k a.
Ord k =>
(Maybe a -> Maybe a) -> k -> Map k a -> Map k a
M.alter Maybe (Val Text) -> Maybe (Val Text)
forall {a}. ToContext a Text => Maybe (Val a) -> Maybe (Val a)
go Text
key Map Text (Val Text)
ctx
  where go :: Maybe (Val a) -> Maybe (Val a)
go Maybe (Val a)
Nothing             = Val a -> Maybe (Val a)
forall a. a -> Maybe a
Just (Val a -> Maybe (Val a)) -> Val a -> Maybe (Val a)
forall a b. (a -> b) -> a -> b
$ Text -> Val a
forall a b. ToContext a b => b -> Val a
toVal Text
val
        go (Just Val a
x)            = Val a -> Maybe (Val a)
forall a. a -> Maybe a
Just Val a
x

pdfWriterAndProg :: Maybe FlavoredFormat      -- ^ user-specified format
                 -> Maybe String              -- ^ user-specified pdf-engine
                 -> IO (FlavoredFormat, Maybe String) -- ^ format, pdf-engine
pdfWriterAndProg :: Maybe FlavoredFormat
-> Maybe FilePath -> IO (FlavoredFormat, Maybe FilePath)
pdfWriterAndProg Maybe FlavoredFormat
mWriter Maybe FilePath
mEngine =
  case Maybe FlavoredFormat
-> Maybe FilePath -> Either Text (FlavoredFormat, FilePath)
go Maybe FlavoredFormat
mWriter Maybe FilePath
mEngine of
      Right (FlavoredFormat
writ, FilePath
prog) -> (FlavoredFormat, Maybe FilePath)
-> IO (FlavoredFormat, Maybe FilePath)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (FlavoredFormat
writ, FilePath -> Maybe FilePath
forall a. a -> Maybe a
Just FilePath
prog)
      Left Text
err           -> IO (FlavoredFormat, Maybe FilePath)
-> IO (FlavoredFormat, Maybe FilePath)
forall a. IO a -> IO a
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (FlavoredFormat, Maybe FilePath)
 -> IO (FlavoredFormat, Maybe FilePath))
-> IO (FlavoredFormat, Maybe FilePath)
-> IO (FlavoredFormat, Maybe FilePath)
forall a b. (a -> b) -> a -> b
$ PandocError -> IO (FlavoredFormat, Maybe FilePath)
forall e a. Exception e => e -> IO a
E.throwIO (PandocError -> IO (FlavoredFormat, Maybe FilePath))
-> PandocError -> IO (FlavoredFormat, Maybe FilePath)
forall a b. (a -> b) -> a -> b
$ Text -> PandocError
PandocAppError Text
err
    where
      go :: Maybe FlavoredFormat
-> Maybe FilePath -> Either Text (FlavoredFormat, FilePath)
go Maybe FlavoredFormat
Nothing Maybe FilePath
Nothing       = (FlavoredFormat, FilePath)
-> Either Text (FlavoredFormat, FilePath)
forall a b. b -> Either a b
Right
                                 (Text -> ExtensionsDiff -> FlavoredFormat
FlavoredFormat Text
"latex" ExtensionsDiff
forall a. Monoid a => a
mempty, FilePath
"pdflatex")
      go (Just FlavoredFormat
writer) Maybe FilePath
Nothing = (FlavoredFormat
writer,) (FilePath -> (FlavoredFormat, FilePath))
-> Either Text FilePath -> Either Text (FlavoredFormat, FilePath)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> FlavoredFormat -> Either Text FilePath
engineForWriter FlavoredFormat
writer
      go Maybe FlavoredFormat
Nothing (Just FilePath
engine) = (,FilePath
engine) (FlavoredFormat -> (FlavoredFormat, FilePath))
-> Either Text FlavoredFormat
-> Either Text (FlavoredFormat, FilePath)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> FilePath -> Either Text FlavoredFormat
writerForEngine (FilePath -> FilePath
takeBaseName FilePath
engine)
      go (Just FlavoredFormat
writer) (Just FilePath
engine) | FlavoredFormat -> Bool
isCustomWriter FlavoredFormat
writer =
           -- custom writers can produce any format, so assume the user knows
           -- what they are doing.
           (FlavoredFormat, FilePath)
-> Either Text (FlavoredFormat, FilePath)
forall a b. b -> Either a b
Right (FlavoredFormat
writer, FilePath
engine)
      go (Just FlavoredFormat
writer) (Just FilePath
engine) =
           case ((Text, FilePath) -> Bool)
-> [(Text, FilePath)] -> Maybe (Text, FilePath)
forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Maybe a
find ((Text, FilePath) -> (Text, FilePath) -> Bool
forall a. Eq a => a -> a -> Bool
== (FlavoredFormat -> Text
formatName FlavoredFormat
writer, FilePath -> FilePath
takeBaseName FilePath
engine)) [(Text, FilePath)]
engines of
                Just (Text, FilePath)
_  -> (FlavoredFormat, FilePath)
-> Either Text (FlavoredFormat, FilePath)
forall a b. b -> Either a b
Right (FlavoredFormat
writer, FilePath
engine)
                Maybe (Text, FilePath)
Nothing -> Text -> Either Text (FlavoredFormat, FilePath)
forall a b. a -> Either a b
Left (Text -> Either Text (FlavoredFormat, FilePath))
-> Text -> Either Text (FlavoredFormat, FilePath)
forall a b. (a -> b) -> a -> b
$ Text
"pdf-engine " Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> FilePath -> Text
T.pack FilePath
engine Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<>
                           Text
" is not compatible with output format " Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<>
                           FlavoredFormat -> Text
formatName FlavoredFormat
writer

      writerForEngine :: FilePath -> Either Text FlavoredFormat
writerForEngine FilePath
eng = case [Text
f | (Text
f,FilePath
e) <- [(Text, FilePath)]
engines, FilePath
e FilePath -> FilePath -> Bool
forall a. Eq a => a -> a -> Bool
== FilePath
eng] of
                                 Text
fmt : [Text]
_ -> FlavoredFormat -> Either Text FlavoredFormat
forall a b. b -> Either a b
Right (Text -> ExtensionsDiff -> FlavoredFormat
FlavoredFormat Text
fmt ExtensionsDiff
forall a. Monoid a => a
mempty)
                                 []      -> Text -> Either Text FlavoredFormat
forall a b. a -> Either a b
Left (Text -> Either Text FlavoredFormat)
-> Text -> Either Text FlavoredFormat
forall a b. (a -> b) -> a -> b
$
                                   Text
"pdf-engine " Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> FilePath -> Text
T.pack FilePath
eng Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
" not known"

      engineForWriter :: FlavoredFormat -> Either Text FilePath
engineForWriter (FlavoredFormat Text
"pdf" ExtensionsDiff
_) = Text -> Either Text FilePath
forall a b. a -> Either a b
Left Text
"pdf writer"
      engineForWriter FlavoredFormat
w = case [FilePath
e | (Text
f,FilePath
e) <- [(Text, FilePath)]
engines, Text
f Text -> Text -> Bool
forall a. Eq a => a -> a -> Bool
== FlavoredFormat -> Text
formatName FlavoredFormat
w] of
                                FilePath
eng : [FilePath]
_ -> FilePath -> Either Text FilePath
forall a b. b -> Either a b
Right FilePath
eng
                                []      -> Text -> Either Text FilePath
forall a b. a -> Either a b
Left (Text -> Either Text FilePath) -> Text -> Either Text FilePath
forall a b. (a -> b) -> a -> b
$
                                   Text
"cannot produce pdf output from " Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<>
                                   FlavoredFormat -> Text
formatName FlavoredFormat
w

      isCustomWriter :: FlavoredFormat -> Bool
isCustomWriter FlavoredFormat
w = Text
".lua" Text -> Text -> Bool
`T.isSuffixOf` FlavoredFormat -> Text
formatName FlavoredFormat
w

isBinaryFormat :: T.Text -> Bool
isBinaryFormat :: Text -> Bool
isBinaryFormat Text
s =
  Text
s Text -> [Text] -> Bool
forall a. Eq a => a -> [a] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` [Text
"odt",Text
"docx",Text
"epub2",Text
"epub3",Text
"epub",Text
"pptx",Text
"pdf",Text
"chunkedhtml"]