    {-# LANGUAGE LambdaCase        #-}
    {-# LANGUAGE FlexibleContexts  #-}
    {-# LANGUAGE OverloadedStrings #-}
    {-# LANGUAGE ScopedTypeVariables #-}
    {-# LANGUAGE TypeApplications  #-}
    {- |
       Module      : Text.Pandoc.Lua.Module.Pandoc
       Copyright   : Copyright © 2017-2024 Albert Krewinkel
       License     : GPL-2.0-or-later
       Maintainer  : Albert Krewinkel <albert+pandoc@tarleb.com>

    Main @pandoc@ module, containing element constructors and central functions.
    -}
    module Text.Pandoc.Lua.Module.Pandoc
      ( documentedModule
      ) where

    import Prelude hiding (read)
    import Control.Applicative ((<|>))
    import Control.Monad (foldM, forM_, when)
    import Control.Monad.Catch (catch, handle, throwM)
    import Control.Monad.Except (MonadError (throwError))
    import Data.Data (Data, dataTypeConstrs, dataTypeOf, showConstr)
    import Data.Default (Default (..))
    import Data.Maybe (fromMaybe)
    import Data.Proxy (Proxy (Proxy))
    import Data.Text.Encoding.Error (UnicodeException)
    import Data.Version (makeVersion)
    import HsLua
    import System.Exit (ExitCode (..))
    import Text.Pandoc.Class ( PandocMonad, FileInfo (..), FileTree
                             , addToFileTree, getCurrentTime
                             , insertInFileTree, sandboxWithFileTree
                             )
    import Text.Pandoc.Definition
    import Text.Pandoc.Error (PandocError (..))
    import Text.Pandoc.Format (FlavoredFormat, parseFlavoredFormat)
    import Text.Pandoc.Lua.Orphans ()
    import Text.Pandoc.Lua.Marshal.AST
    import Text.Pandoc.Lua.Marshal.Format (peekFlavoredFormat)
    import Text.Pandoc.Lua.Marshal.Filter (peekFilter)
    import Text.Pandoc.Lua.Marshal.ReaderOptions ( peekReaderOptions
                                                 , pushReaderOptions)
    import Text.Pandoc.Lua.Marshal.Sources (peekSources)
    import Text.Pandoc.Lua.Marshal.WriterOptions ( peekWriterOptions
                                                 , pushWriterOptions)
    import Text.Pandoc.Lua.Module.Utils (sha1)
    import Text.Pandoc.Lua.PandocLua (PandocLua (unPandocLua))
    import Text.Pandoc.Lua.Writer.Classic (runCustom)
    import Text.Pandoc.Options ( ReaderOptions (readerExtensions)
                               , WriterOptions (writerExtensions) )
    import Text.Pandoc.Process (pipeProcess)
    import Text.Pandoc.Readers (Reader (..), getReader, readers)
    import Text.Pandoc.Sources (toSources)
    import Text.Pandoc.Writers (Writer (..), getWriter, writers)

    import qualified HsLua as Lua
    import qualified Data.ByteString.Lazy as BL
    import qualified Data.ByteString.Lazy.Char8 as BSL
    import qualified Data.Set as Set
    import qualified Data.Text as T
    import qualified Text.Pandoc.UTF8 as UTF8

    documentedModule :: Module PandocError
    documentedModule :: Module PandocError
    documentedModule = Module
      { moduleName :: Name
    moduleName = Name
    "pandoc"
      , moduleDescription :: Text
    moduleDescription = [Text] -> Text
    T.unlines
        [ Text
    "Fields and functions for pandoc scripts; includes constructors for"
        , Text
    "document tree elements, functions to parse text in a given"
        , Text
    "format, and functions to filter and modify a subtree."
        ]
      , moduleFields :: [Field PandocError]
    moduleFields = Field PandocError
    readersField Field PandocError -> [Field PandocError] -> [Field PandocError]
    forall a. a -> [a] -> [a]
    : Field PandocError
    writersField Field PandocError -> [Field PandocError] -> [Field PandocError]
    forall a. a -> [a] -> [a]
    :
                       [Field PandocError]
    forall e. [Field e]
    stringConstants [Field PandocError] -> [Field PandocError] -> [Field PandocError]
    forall a. [a] -> [a] -> [a]
    ++ [Field PandocError
    inlineField, Field PandocError
    blockField]
      , moduleOperations :: [(Operation, DocumentedFunction PandocError)]
    moduleOperations = []
      , moduleFunctions :: [DocumentedFunction PandocError]
    moduleFunctions = [[DocumentedFunction PandocError]]
    -> [DocumentedFunction PandocError]
    forall a. Monoid a => [a] -> a
    mconcat
          [ [DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkPandoc, DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkMeta]
          , [DocumentedFunction PandocError]
    forall e. LuaError e => [DocumentedFunction e]
    metaValueConstructors
          , [DocumentedFunction PandocError]
    forall e. LuaError e => [DocumentedFunction e]
    blockConstructors
          , [DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkBlocks]
          , [DocumentedFunction PandocError]
    forall e. LuaError e => [DocumentedFunction e]
    inlineConstructors
          , [DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkInlines]
          , [DocumentedFunction PandocError]
    otherConstructors
          , [DocumentedFunction PandocError]
    functions
          ]
      , moduleTypeInitializers :: [LuaE PandocError Name]
    moduleTypeInitializers =
        [ DocumentedTypeWithList PandocError Pandoc Void
    -> LuaE PandocError Name
    forall e a itemtype.
    LuaError e =>
    DocumentedTypeWithList e a itemtype -> LuaE e Name
    initType DocumentedTypeWithList PandocError Pandoc Void
    forall e. LuaError e => DocumentedType e Pandoc
    typePandoc
        , DocumentedTypeWithList PandocError Block Void
    -> LuaE PandocError Name
    forall e a itemtype.
    LuaError e =>
    DocumentedTypeWithList e a itemtype -> LuaE e Name
    initType DocumentedTypeWithList PandocError Block Void
    forall e. LuaError e => DocumentedType e Block
    typeBlock
        , DocumentedTypeWithList PandocError Inline Void
    -> LuaE PandocError Name
    forall e a itemtype.
    LuaError e =>
    DocumentedTypeWithList e a itemtype -> LuaE e Name
    initType DocumentedTypeWithList PandocError Inline Void
    forall e. LuaError e => DocumentedType e Inline
    typeInline
        ]
      }

    -- | Set of input formats accepted by @read@.
    readersField :: Field PandocError
    readersField :: Field PandocError
    readersField = Field
      { fieldName :: Text
    fieldName = Text
    "readers"
      , fieldType :: TypeSpec
    fieldType = TypeSpec
    "table"
      , fieldDescription :: Text
    fieldDescription = [Text] -> Text
    T.unlines
        [ Text
    "Set of formats that pandoc can parse. All keys in this table can"
        , Text
    "be used as the `format` value in `pandoc.read`."
        ]
      , fieldPushValue :: LuaE PandocError ()
    fieldPushValue = Pusher PandocError Text -> Pusher PandocError (Set Text)
    forall e a. LuaError e => Pusher e a -> Pusher e (Set a)
    pushSet Pusher PandocError Text
    forall e. Pusher e Text
    pushText Pusher PandocError (Set Text) -> Pusher PandocError (Set Text)
    forall a b. (a -> b) -> a -> b
    $
                         [Text] -> Set Text
    forall a. Ord a => [a] -> Set a
    Set.fromList (((Text, Reader PandocLua) -> Text)
    -> [(Text, Reader PandocLua)] -> [Text]
    forall a b. (a -> b) -> [a] -> [b]
    map (Text, Reader PandocLua) -> Text
    forall a b. (a, b) -> a
    fst (forall (m :: * -> *). PandocMonad m => [(Text, Reader m)]
    readers @PandocLua))
      }

    -- | Set of input formats accepted by @write@.
    writersField :: Field PandocError
    writersField :: Field PandocError
    writersField = Field
      { fieldName :: Text
    fieldName = Text
    "writers"
      , fieldType :: TypeSpec
    fieldType = TypeSpec
    "table"
      , fieldDescription :: Text
    fieldDescription = [Text] -> Text
    T.unlines
        [ Text
    "Set of formats that pandoc can generate. All keys in this table"
        , Text
    "can be used as the `format` value in `pandoc.write`."
        ]
      , fieldPushValue :: LuaE PandocError ()
    fieldPushValue = Pusher PandocError Text -> Pusher PandocError (Set Text)
    forall e a. LuaError e => Pusher e a -> Pusher e (Set a)
    pushSet Pusher PandocError Text
    forall e. Pusher e Text
    pushText Pusher PandocError (Set Text) -> Pusher PandocError (Set Text)
    forall a b. (a -> b) -> a -> b
    $
                         [Text] -> Set Text
    forall a. Ord a => [a] -> Set a
    Set.fromList (((Text, Writer PandocLua) -> Text)
    -> [(Text, Writer PandocLua)] -> [Text]
    forall a b. (a -> b) -> [a] -> [b]
    map (Text, Writer PandocLua) -> Text
    forall a b. (a, b) -> a
    fst (forall (m :: * -> *). PandocMonad m => [(Text, Writer m)]
    writers @PandocLua))
      }

    -- | Inline table field
    inlineField :: Field PandocError
    inlineField :: Field PandocError
    inlineField = Field
      { fieldName :: Text
    fieldName = Text
    "Inline"
      , fieldType :: TypeSpec
    fieldType = TypeSpec
    "table"
      , fieldDescription :: Text
    fieldDescription = Text
    "Inline constructors, nested under 'constructors'."
      -- the nesting happens for historical reasons and should probably be
      -- changed.
      , fieldPushValue :: LuaE PandocError ()
    fieldPushValue = [DocumentedFunction PandocError] -> LuaE PandocError ()
    pushWithConstructorsSubtable [DocumentedFunction PandocError]
    forall e. LuaError e => [DocumentedFunction e]
    inlineConstructors
      }

    -- | @Block@ module field
    blockField :: Field PandocError
    blockField :: Field PandocError
    blockField = Field
      { fieldName :: Text
    fieldName = Text
    "Block"
      , fieldType :: TypeSpec
    fieldType = TypeSpec
    "table"
      , fieldDescription :: Text
    fieldDescription = Text
    "Inline constructors, nested under 'constructors'."
      -- the nesting happens for historical reasons and should probably be
      -- changed.
      , fieldPushValue :: LuaE PandocError ()
    fieldPushValue = [DocumentedFunction PandocError] -> LuaE PandocError ()
    pushWithConstructorsSubtable [DocumentedFunction PandocError]
    forall e. LuaError e => [DocumentedFunction e]
    blockConstructors
      }

    pushWithConstructorsSubtable :: [DocumentedFunction PandocError]
                                 -> LuaE PandocError ()
    pushWithConstructorsSubtable :: [DocumentedFunction PandocError] -> LuaE PandocError ()
    pushWithConstructorsSubtable [DocumentedFunction PandocError]
    constructors = do
      LuaE PandocError ()
    forall e. LuaE e ()
    newtable -- Field table
      LuaE PandocError ()
    forall e. LuaE e ()
    newtable -- constructor table
      Name -> LuaE PandocError ()
    forall e. Name -> LuaE e ()
    pushName Name
    "constructor" LuaE PandocError () -> LuaE PandocError () -> LuaE PandocError ()
    forall a b.
    LuaE PandocError a -> LuaE PandocError b -> LuaE PandocError b
    forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
    *> StackIndex -> LuaE PandocError ()
    forall e. StackIndex -> LuaE e ()
    pushvalue (CInt -> StackIndex
    nth CInt
    2) LuaE PandocError () -> LuaE PandocError () -> LuaE PandocError ()
    forall a b.
    LuaE PandocError a -> LuaE PandocError b -> LuaE PandocError b
    forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
    *> StackIndex -> LuaE PandocError ()
    forall e. LuaError e => StackIndex -> LuaE e ()
    rawset (CInt -> StackIndex
    nth CInt
    4)
      [DocumentedFunction PandocError]
    -> (DocumentedFunction PandocError -> LuaE PandocError ())
    -> LuaE PandocError ()
    forall (t :: * -> *) (m :: * -> *) a b.
    (Foldable t, Monad m) =>
    t a -> (a -> m b) -> m ()
    forM_ [DocumentedFunction PandocError]
    constructors ((DocumentedFunction PandocError -> LuaE PandocError ())
     -> LuaE PandocError ())
    -> (DocumentedFunction PandocError -> LuaE PandocError ())
    -> LuaE PandocError ()
    forall a b. (a -> b) -> a -> b
    $ \DocumentedFunction PandocError
    fn -> do
        Name -> LuaE PandocError ()
    forall e. Name -> LuaE e ()
    pushName (DocumentedFunction PandocError -> Name
    forall e. DocumentedFunction e -> Name
    functionName DocumentedFunction PandocError
    fn)
        DocumentedFunction PandocError -> LuaE PandocError ()
    forall e. LuaError e => DocumentedFunction e -> LuaE e ()
    pushDocumentedFunction DocumentedFunction PandocError
    fn
        StackIndex -> LuaE PandocError ()
    forall e. LuaError e => StackIndex -> LuaE e ()
    rawset (CInt -> StackIndex
    nth CInt
    3)
      Int -> LuaE PandocError ()
    forall e. Int -> LuaE e ()
    pop Int
    1 -- pop constructor table

    otherConstructors :: [DocumentedFunction PandocError]
    otherConstructors :: [DocumentedFunction PandocError]
    otherConstructors =
      [ DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkAttr
      , DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkCaption DocumentedFunction PandocError
    -> Version -> DocumentedFunction PandocError
    forall e. DocumentedFunction e -> Version -> DocumentedFunction e
    `since` [Int] -> Version
    makeVersion [Int
    3,Int
    6,Int
    1]
      , DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkCell
      , DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkAttributeList
      , DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkCitation
      , DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkListAttributes
      , DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkRow
      , DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkTableFoot
      , DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkTableHead
      , DocumentedFunction PandocError
    forall e. LuaError e => DocumentedFunction e
    mkSimpleTable

      , Name
    -> (ReaderOptions -> LuaE PandocError ReaderOptions)
    -> HsFnPrecursor
         PandocError (ReaderOptions -> LuaE PandocError ReaderOptions)
    forall a e. Name -> a -> HsFnPrecursor e a
    defun Name
    "ReaderOptions"
        ### liftPure id
        HsFnPrecursor
      PandocError (ReaderOptions -> LuaE PandocError ReaderOptions)
    -> Parameter PandocError ReaderOptions
    -> HsFnPrecursor PandocError (LuaE PandocError ReaderOptions)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError ReaderOptions
    -> TypeSpec -> Text -> Text -> Parameter PandocError ReaderOptions
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError ReaderOptions
    forall e. LuaError e => Peeker e ReaderOptions
    peekReaderOptions TypeSpec
    "ReaderOptions|table" Text
    "opts"
            ([Text] -> Text
    T.unlines
             [ Text
    "Either a table with a subset of the properties of a"
             , Text
    "[[ReaderOptions]] object, or another ReaderOptions object."
             , Text
    "Uses the defaults specified in the manual for all"
             , Text
    "properties that are not explicitly specified. Throws an"
             , Text
    "error if a table contains properties which are not present"
             , Text
    "in a ReaderOptions object."
            ]
            )
        HsFnPrecursor PandocError (LuaE PandocError ReaderOptions)
    -> FunctionResults PandocError ReaderOptions
    -> DocumentedFunction PandocError
    forall e a.
    HsFnPrecursor e (LuaE e a)
    -> FunctionResults e a -> DocumentedFunction e
    =#> Pusher PandocError ReaderOptions
    -> TypeSpec -> Text -> FunctionResults PandocError ReaderOptions
    forall e a. Pusher e a -> TypeSpec -> Text -> FunctionResults e a
    functionResult Pusher PandocError ReaderOptions
    forall e. LuaError e => Pusher e ReaderOptions
    pushReaderOptions TypeSpec
    "ReaderOptions" Text
    "new object"
        #? T.unlines
        [ "Creates a new ReaderOptions value."
        , ""
        , "Usage:"
        , ""
        , "    -- copy of the reader options that were defined on the command line."
        , "    local cli_opts = pandoc.ReaderOptions(PANDOC_READER_OPTIONS)"
        , "    -- default reader options, but columns set to 66."
        , "    local short_colums_opts = pandoc.ReaderOptions {columns = 66}"
        ]

      , Name
    -> (WriterOptions -> LuaE PandocError WriterOptions)
    -> HsFnPrecursor
         PandocError (WriterOptions -> LuaE PandocError WriterOptions)
    forall a e. Name -> a -> HsFnPrecursor e a
    defun Name
    "WriterOptions"
        ### liftPure id
        HsFnPrecursor
      PandocError (WriterOptions -> LuaE PandocError WriterOptions)
    -> Parameter PandocError WriterOptions
    -> HsFnPrecursor PandocError (LuaE PandocError WriterOptions)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError WriterOptions
    -> TypeSpec -> Text -> Text -> Parameter PandocError WriterOptions
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError WriterOptions
    peekWriterOptions TypeSpec
    "WriterOptions|table" Text
    "opts"
            ([Text] -> Text
    T.unlines
            [ Text
    "Either a table with a subset of the properties of a"
            , Text
    "[[WriterOptions]] object, or another WriterOptions object."
            , Text
    "Uses the defaults specified in the manual for all"
            , Text
    "properties that are not explicitly specified. Throws an"
            , Text
    "error if a table contains properties which are not present"
            , Text
    "in a WriterOptions object."
            ])
        HsFnPrecursor PandocError (LuaE PandocError WriterOptions)
    -> FunctionResults PandocError WriterOptions
    -> DocumentedFunction PandocError
    forall e a.
    HsFnPrecursor e (LuaE e a)
    -> FunctionResults e a -> DocumentedFunction e
    =#> Pusher PandocError WriterOptions
    -> TypeSpec -> Text -> FunctionResults PandocError WriterOptions
    forall e a. Pusher e a -> TypeSpec -> Text -> FunctionResults e a
    functionResult Pusher PandocError WriterOptions
    pushWriterOptions TypeSpec
    "WriterOptions" Text
    "new object"
        #? "Creates a new WriterOptions value."
      ]

    stringConstants :: [Field e]
    stringConstants :: forall e. [Field e]
    stringConstants =
      let constrs :: forall a. Data a => Proxy a -> [String]
          constrs :: forall a. Data a => Proxy a -> [String]
    constrs Proxy a
    _ = (Constr -> String) -> [Constr] -> [String]
    forall a b. (a -> b) -> [a] -> [b]
    map Constr -> String
    showConstr ([Constr] -> [String]) -> (a -> [Constr]) -> a -> [String]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . DataType -> [Constr]
    dataTypeConstrs (DataType -> [Constr]) -> (a -> DataType) -> a -> [Constr]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . forall a. Data a => a -> DataType
    dataTypeOf @a (a -> [String]) -> a -> [String]
    forall a b. (a -> b) -> a -> b
    $ a
    forall a. HasCallStack => a
    undefined
          nullaryConstructors :: [String]
    nullaryConstructors = [[String]] -> [String]
    forall a. Monoid a => [a] -> a
    mconcat
            [ Proxy ListNumberStyle -> [String]
    forall a. Data a => Proxy a -> [String]
    constrs (forall t. Proxy t
    forall {k} (t :: k). Proxy t
    Proxy @ListNumberStyle)
            , Proxy ListNumberDelim -> [String]
    forall a. Data a => Proxy a -> [String]
    constrs (forall t. Proxy t
    forall {k} (t :: k). Proxy t
    Proxy @ListNumberDelim)
            , Proxy QuoteType -> [String]
    forall a. Data a => Proxy a -> [String]
    constrs (forall t. Proxy t
    forall {k} (t :: k). Proxy t
    Proxy @QuoteType)
            , Proxy MathType -> [String]
    forall a. Data a => Proxy a -> [String]
    constrs (forall t. Proxy t
    forall {k} (t :: k). Proxy t
    Proxy @MathType)
            , Proxy Alignment -> [String]
    forall a. Data a => Proxy a -> [String]
    constrs (forall t. Proxy t
    forall {k} (t :: k). Proxy t
    Proxy @Alignment)
            , Proxy CitationMode -> [String]
    forall a. Data a => Proxy a -> [String]
    constrs (forall t. Proxy t
    forall {k} (t :: k). Proxy t
    Proxy @CitationMode)
            ]
          toField :: String -> Field e
    toField String
    s = Field
            { fieldName :: Text
    fieldName = String -> Text
    T.pack String
    s
            , fieldType :: TypeSpec
    fieldType = TypeSpec
    "string"
            , fieldDescription :: Text
    fieldDescription = String -> Text
    T.pack String
    s
            , fieldPushValue :: LuaE e ()
    fieldPushValue = String -> LuaE e ()
    forall e. String -> LuaE e ()
    pushString String
    s
            }
      in (String -> Field e) -> [String] -> [Field e]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Field e
    forall {e}. String -> Field e
    toField [String]
    nullaryConstructors

    functions :: [DocumentedFunction PandocError]
    functions :: [DocumentedFunction PandocError]
    functions =
      [ Name
    -> (String
        -> [String] -> ByteString -> LuaE PandocError NumResults)
    -> HsFnPrecursor
         PandocError
         (String -> [String] -> ByteString -> LuaE PandocError NumResults)
    forall a e. Name -> a -> HsFnPrecursor e a
    defun Name
    "pipe"
        ### (\command args input -> do
                (ec, output) <- Lua.liftIO $ pipeProcess Nothing command args input
                                `catch` (throwM . PandocIOError "pipe")
                case ec of
                  ExitSuccess -> 1 <$ Lua.pushLazyByteString output
                  ExitFailure n -> do
                    pushPipeError (PipeError (T.pack command) n output)
                    Lua.error)
        HsFnPrecursor
      PandocError
      (String -> [String] -> ByteString -> LuaE PandocError NumResults)
    -> Parameter PandocError String
    -> HsFnPrecursor
         PandocError ([String] -> ByteString -> LuaE PandocError NumResults)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError String
    -> TypeSpec -> Text -> Text -> Parameter PandocError String
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError String
    forall e. Peeker e String
    peekString TypeSpec
    "string" Text
    "command" Text
    "path to executable"
        HsFnPrecursor
      PandocError ([String] -> ByteString -> LuaE PandocError NumResults)
    -> Parameter PandocError [String]
    -> HsFnPrecursor
         PandocError (ByteString -> LuaE PandocError NumResults)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError [String]
    -> TypeSpec -> Text -> Text -> Parameter PandocError [String]
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter (Peeker PandocError String -> Peeker PandocError [String]
    forall a e. LuaError e => Peeker e a -> Peeker e [a]
    peekList Peeker PandocError String
    forall e. Peeker e String
    peekString) TypeSpec
    "{string,...}" Text
    "args"
              Text
    "list of arguments"
        HsFnPrecursor
      PandocError (ByteString -> LuaE PandocError NumResults)
    -> Parameter PandocError ByteString
    -> HsFnPrecursor PandocError (LuaE PandocError NumResults)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError ByteString
    -> TypeSpec -> Text -> Text -> Parameter PandocError ByteString
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError ByteString
    forall e. Peeker e ByteString
    peekLazyByteString TypeSpec
    "string" Text
    "input"
              Text
    "input passed to process via stdin"
        HsFnPrecursor PandocError (LuaE PandocError NumResults)
    -> Text -> DocumentedFunction PandocError
    forall e.
    HsFnPrecursor e (LuaE e NumResults) -> Text -> DocumentedFunction e
    =?> Text
    "output string, or error triple"

      , Name
    -> (Either ByteString Sources
        -> Maybe FlavoredFormat
        -> Maybe ReaderOptions
        -> Maybe FileTree
        -> LuaE PandocError Pandoc)
    -> HsFnPrecursor
         PandocError
         (Either ByteString Sources
          -> Maybe FlavoredFormat
          -> Maybe ReaderOptions
          -> Maybe FileTree
          -> LuaE PandocError Pandoc)
    forall a e. Name -> a -> HsFnPrecursor e a
    defun Name
    "read"
        ### (\content mformatspec mreaderOptions mreadEnv -> do
                let readerOpts = fromMaybe def mreaderOptions

                    readAction :: PandocMonad m => FlavoredFormat -> m Pandoc
                    readAction flvrd = getReader flvrd >>= \case
                      (TextReader r, es)       ->
                        r readerOpts{readerExtensions = es} $
                        case content of
                          Left bs       -> toSources $ UTF8.toText bs
                          Right sources -> sources
                      (ByteStringReader r, es) ->
                        case content of
                          Left bs -> r readerOpts{readerExtensions = es}
                                     (BSL.fromStrict bs)
                          Right _ -> throwError $ PandocLuaError
                                     "Cannot use bytestring reader with Sources"

                handle (failLua . show @UnicodeException) . unPandocLua $ do
                  flvrd <- maybe (parseFlavoredFormat "markdown") pure mformatspec
                  case mreadEnv of
                    Nothing   -> readAction flvrd
                    Just tree -> sandboxWithFileTree tree (readAction flvrd))
        HsFnPrecursor
      PandocError
      (Either ByteString Sources
       -> Maybe FlavoredFormat
       -> Maybe ReaderOptions
       -> Maybe FileTree
       -> LuaE PandocError Pandoc)
    -> Parameter PandocError (Either ByteString Sources)
    -> HsFnPrecursor
         PandocError
         (Maybe FlavoredFormat
          -> Maybe ReaderOptions
          -> Maybe FileTree
          -> LuaE PandocError Pandoc)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError (Either ByteString Sources)
    -> TypeSpec
    -> Text
    -> Text
    -> Parameter PandocError (Either ByteString Sources)
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter (\StackIndex
    idx -> (ByteString -> Either ByteString Sources
    forall a b. a -> Either a b
    Left  (ByteString -> Either ByteString Sources)
    -> Peek PandocError ByteString
    -> Peek PandocError (Either ByteString Sources)
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    <$> Peeker PandocError ByteString
    forall e. Peeker e ByteString
    peekByteString StackIndex
    idx)
                           Peek PandocError (Either ByteString Sources)
    -> Peek PandocError (Either ByteString Sources)
    -> Peek PandocError (Either ByteString Sources)
    forall a.
    Peek PandocError a -> Peek PandocError a -> Peek PandocError a
    forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
    <|> (Sources -> Either ByteString Sources
    forall a b. b -> Either a b
    Right (Sources -> Either ByteString Sources)
    -> Peek PandocError Sources
    -> Peek PandocError (Either ByteString Sources)
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    <$> Peeker PandocError Sources
    forall e. LuaError e => Peeker e Sources
    peekSources StackIndex
    idx))
              TypeSpec
    "string|Sources" Text
    "content" Text
    "text to parse"
        HsFnPrecursor
      PandocError
      (Maybe FlavoredFormat
       -> Maybe ReaderOptions
       -> Maybe FileTree
       -> LuaE PandocError Pandoc)
    -> Parameter PandocError (Maybe FlavoredFormat)
    -> HsFnPrecursor
         PandocError
         (Maybe ReaderOptions -> Maybe FileTree -> LuaE PandocError Pandoc)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Parameter PandocError FlavoredFormat
    -> Parameter PandocError (Maybe FlavoredFormat)
    forall e a. Parameter e a -> Parameter e (Maybe a)
    opt (Peeker PandocError FlavoredFormat
    -> TypeSpec -> Text -> Text -> Parameter PandocError FlavoredFormat
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError FlavoredFormat
    peekFlavoredFormat TypeSpec
    "string|table"
                           Text
    "formatspec" Text
    "format and extensions")
        HsFnPrecursor
      PandocError
      (Maybe ReaderOptions -> Maybe FileTree -> LuaE PandocError Pandoc)
    -> Parameter PandocError (Maybe ReaderOptions)
    -> HsFnPrecursor
         PandocError (Maybe FileTree -> LuaE PandocError Pandoc)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Parameter PandocError ReaderOptions
    -> Parameter PandocError (Maybe ReaderOptions)
    forall e a. Parameter e a -> Parameter e (Maybe a)
    opt (Peeker PandocError ReaderOptions
    -> TypeSpec -> Text -> Text -> Parameter PandocError ReaderOptions
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError ReaderOptions
    forall e. LuaError e => Peeker e ReaderOptions
    peekReaderOptions TypeSpec
    "ReaderOptions" Text
    "reader_options"
                 Text
    "reader options")
        HsFnPrecursor
      PandocError (Maybe FileTree -> LuaE PandocError Pandoc)
    -> Parameter PandocError (Maybe FileTree)
    -> HsFnPrecursor PandocError (LuaE PandocError Pandoc)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Parameter PandocError FileTree
    -> Parameter PandocError (Maybe FileTree)
    forall e a. Parameter e a -> Parameter e (Maybe a)
    opt (Peeker PandocError FileTree
    -> TypeSpec -> Text -> Text -> Parameter PandocError FileTree
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError FileTree
    peekReadEnv TypeSpec
    "table" Text
    "read_env" (Text -> Parameter PandocError FileTree)
    -> Text -> Parameter PandocError FileTree
    forall a b. (a -> b) -> a -> b
    $ [Text] -> Text
    T.unlines
                [ Text
    "If the value is not given or `nil`, then the global environment"
                , Text
    "is used. Passing a list of filenames causes the reader to"
                , Text
    "be run in a sandbox. The given files are read from the file"
                , Text
    "system and provided to the sandbox via an ersatz file system."
                , Text
    "The table can also contain mappings from filenames to"
                , Text
    "contents, which will be used to populate the ersatz file"
                , Text
    "system."
                ])
        HsFnPrecursor PandocError (LuaE PandocError Pandoc)
    -> FunctionResults PandocError Pandoc
    -> DocumentedFunction PandocError
    forall e a.
    HsFnPrecursor e (LuaE e a)
    -> FunctionResults e a -> DocumentedFunction e
    =#> Pusher PandocError Pandoc
    -> TypeSpec -> Text -> FunctionResults PandocError Pandoc
    forall e a. Pusher e a -> TypeSpec -> Text -> FunctionResults e a
    functionResult Pusher PandocError Pandoc
    forall e. LuaError e => Pusher e Pandoc
    pushPandoc TypeSpec
    "Pandoc" Text
    "result document"

      , DocumentedFunction PandocError
    forall e. DocumentedFunction e
    sha1

      , Name
    -> (Block -> Filter -> LuaE PandocError Block)
    -> HsFnPrecursor
         PandocError (Block -> Filter -> LuaE PandocError Block)
    forall a e. Name -> a -> HsFnPrecursor e a
    defun Name
    "walk_block"
        ### walkElement
        HsFnPrecursor
      PandocError (Block -> Filter -> LuaE PandocError Block)
    -> Parameter PandocError Block
    -> HsFnPrecursor PandocError (Filter -> LuaE PandocError Block)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError Block
    -> TypeSpec -> Text -> Text -> Parameter PandocError Block
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError Block
    forall e. LuaError e => Peeker e Block
    peekBlockFuzzy TypeSpec
    "Block" Text
    "block" Text
    "element to traverse"
        HsFnPrecursor PandocError (Filter -> LuaE PandocError Block)
    -> Parameter PandocError Filter
    -> HsFnPrecursor PandocError (LuaE PandocError Block)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError Filter
    -> TypeSpec -> Text -> Text -> Parameter PandocError Filter
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError Filter
    forall e. LuaError e => Peeker e Filter
    peekFilter TypeSpec
    "Filter" Text
    "lua_filter" Text
    "filter functions"
        HsFnPrecursor PandocError (LuaE PandocError Block)
    -> FunctionResults PandocError Block
    -> DocumentedFunction PandocError
    forall e a.
    HsFnPrecursor e (LuaE e a)
    -> FunctionResults e a -> DocumentedFunction e
    =#> Pusher PandocError Block
    -> TypeSpec -> Text -> FunctionResults PandocError Block
    forall e a. Pusher e a -> TypeSpec -> Text -> FunctionResults e a
    functionResult Pusher PandocError Block
    forall e. LuaError e => Pusher e Block
    pushBlock TypeSpec
    "Block" Text
    "modified Block"

      , Name
    -> (Inline -> Filter -> LuaE PandocError Inline)
    -> HsFnPrecursor
         PandocError (Inline -> Filter -> LuaE PandocError Inline)
    forall a e. Name -> a -> HsFnPrecursor e a
    defun Name
    "walk_inline"
        ### walkElement
        HsFnPrecursor
      PandocError (Inline -> Filter -> LuaE PandocError Inline)
    -> Parameter PandocError Inline
    -> HsFnPrecursor PandocError (Filter -> LuaE PandocError Inline)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError Inline
    -> TypeSpec -> Text -> Text -> Parameter PandocError Inline
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError Inline
    forall e. LuaError e => Peeker e Inline
    peekInlineFuzzy TypeSpec
    "Inline" Text
    "inline" Text
    "element to traverse"
        HsFnPrecursor PandocError (Filter -> LuaE PandocError Inline)
    -> Parameter PandocError Filter
    -> HsFnPrecursor PandocError (LuaE PandocError Inline)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError Filter
    -> TypeSpec -> Text -> Text -> Parameter PandocError Filter
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError Filter
    forall e. LuaError e => Peeker e Filter
    peekFilter TypeSpec
    "Filter" Text
    "lua_filter" Text
    "filter functions"
        HsFnPrecursor PandocError (LuaE PandocError Inline)
    -> FunctionResults PandocError Inline
    -> DocumentedFunction PandocError
    forall e a.
    HsFnPrecursor e (LuaE e a)
    -> FunctionResults e a -> DocumentedFunction e
    =#> Pusher PandocError Inline
    -> TypeSpec -> Text -> FunctionResults PandocError Inline
    forall e a. Pusher e a -> TypeSpec -> Text -> FunctionResults e a
    functionResult Pusher PandocError Inline
    forall e. LuaError e => Pusher e Inline
    pushInline TypeSpec
    "Inline" Text
    "modified Inline"

      , Name
    -> (Pandoc
        -> Maybe FlavoredFormat
        -> Maybe WriterOptions
        -> LuaE PandocError (Either ByteString Text))
    -> HsFnPrecursor
         PandocError
         (Pandoc
          -> Maybe FlavoredFormat
          -> Maybe WriterOptions
          -> LuaE PandocError (Either ByteString Text))
    forall a e. Name -> a -> HsFnPrecursor e a
    defun Name
    "write"
        ### (\doc mformatspec mwriterOpts -> unPandocLua $ do
                flvrd <- maybe (parseFlavoredFormat "markdown") pure mformatspec
                let writerOpts = fromMaybe def mwriterOpts
                getWriter flvrd >>= \case
                  (TextWriter w, es)      -> Right <$>
                    w writerOpts{ writerExtensions = es } doc
                  (ByteStringWriter w, es) -> Left <$>
                    w writerOpts{ writerExtensions = es } doc)
        HsFnPrecursor
      PandocError
      (Pandoc
       -> Maybe FlavoredFormat
       -> Maybe WriterOptions
       -> LuaE PandocError (Either ByteString Text))
    -> Parameter PandocError Pandoc
    -> HsFnPrecursor
         PandocError
         (Maybe FlavoredFormat
          -> Maybe WriterOptions
          -> LuaE PandocError (Either ByteString Text))
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError Pandoc
    -> TypeSpec -> Text -> Text -> Parameter PandocError Pandoc
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError Pandoc
    forall e. LuaError e => Peeker e Pandoc
    peekPandoc TypeSpec
    "Pandoc" Text
    "doc" Text
    "document to convert"
        HsFnPrecursor
      PandocError
      (Maybe FlavoredFormat
       -> Maybe WriterOptions
       -> LuaE PandocError (Either ByteString Text))
    -> Parameter PandocError (Maybe FlavoredFormat)
    -> HsFnPrecursor
         PandocError
         (Maybe WriterOptions -> LuaE PandocError (Either ByteString Text))
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Parameter PandocError FlavoredFormat
    -> Parameter PandocError (Maybe FlavoredFormat)
    forall e a. Parameter e a -> Parameter e (Maybe a)
    opt (Peeker PandocError FlavoredFormat
    -> TypeSpec -> Text -> Text -> Parameter PandocError FlavoredFormat
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError FlavoredFormat
    peekFlavoredFormat TypeSpec
    "string|table" Text
    "formatspec"
                 ([Text] -> Text
    T.unlines
                  [ Text
    "format specification; defaults to `\"html\"`. See the"
                  , Text
    "documentation of [`pandoc.read`](#pandoc.read) for a complete"
                  , Text
    "description of this parameter."
                  ]))
        HsFnPrecursor
      PandocError
      (Maybe WriterOptions -> LuaE PandocError (Either ByteString Text))
    -> Parameter PandocError (Maybe WriterOptions)
    -> HsFnPrecursor
         PandocError (LuaE PandocError (Either ByteString Text))
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Parameter PandocError WriterOptions
    -> Parameter PandocError (Maybe WriterOptions)
    forall e a. Parameter e a -> Parameter e (Maybe a)
    opt (Peeker PandocError WriterOptions
    -> TypeSpec -> Text -> Text -> Parameter PandocError WriterOptions
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError WriterOptions
    peekWriterOptions TypeSpec
    "WriterOptions|table" Text
    "writer_options"
                ([Text] -> Text
    T.unlines
                [ Text
    "options passed to the writer; may be a WriterOptions object"
                , Text
    "or a table with a subset of the keys and values of a"
                , Text
    "WriterOptions object; defaults to the default values"
                , Text
    "documented in the manual."
                ])
                )
        HsFnPrecursor
      PandocError (LuaE PandocError (Either ByteString Text))
    -> FunctionResults PandocError (Either ByteString Text)
    -> DocumentedFunction PandocError
    forall e a.
    HsFnPrecursor e (LuaE e a)
    -> FunctionResults e a -> DocumentedFunction e
    =#> Pusher PandocError (Either ByteString Text)
    -> TypeSpec
    -> Text
    -> FunctionResults PandocError (Either ByteString Text)
    forall e a. Pusher e a -> TypeSpec -> Text -> FunctionResults e a
    functionResult (Pusher PandocError ByteString
    -> Pusher PandocError Text
    -> Pusher PandocError (Either ByteString Text)
    forall a c b. (a -> c) -> (b -> c) -> Either a b -> c
    either Pusher PandocError ByteString
    forall e. Pusher e ByteString
    pushLazyByteString Pusher PandocError Text
    forall e. Pusher e Text
    pushText) TypeSpec
    "string"
              Text
    "result document"
        #? T.unlines
        [ "Converts a document to the given target format."
        , ""
        , "Usage:"
        , ""
        , "    local doc = pandoc.Pandoc("
        , "      {pandoc.Para {pandoc.Strong 'Tea'}}"
        , "    )"
        , "    local html = pandoc.write(doc, 'html')"
        , "    assert(html == '<p><strong>Tea</strong></p>')"
        ]

      , Name
    -> (Pandoc -> Maybe WriterOptions -> LuaE PandocError Text)
    -> HsFnPrecursor
         PandocError
         (Pandoc -> Maybe WriterOptions -> LuaE PandocError Text)
    forall a e. Name -> a -> HsFnPrecursor e a
    defun Name
    "write_classic"
        ### (\doc mwopts -> runCustom (fromMaybe def mwopts) doc)
        HsFnPrecursor
      PandocError
      (Pandoc -> Maybe WriterOptions -> LuaE PandocError Text)
    -> Parameter PandocError Pandoc
    -> HsFnPrecursor
         PandocError (Maybe WriterOptions -> LuaE PandocError Text)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Peeker PandocError Pandoc
    -> TypeSpec -> Text -> Text -> Parameter PandocError Pandoc
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError Pandoc
    forall e. LuaError e => Peeker e Pandoc
    peekPandoc TypeSpec
    "Pandoc" Text
    "doc" Text
    "document to convert"
        HsFnPrecursor
      PandocError (Maybe WriterOptions -> LuaE PandocError Text)
    -> Parameter PandocError (Maybe WriterOptions)
    -> HsFnPrecursor PandocError (LuaE PandocError Text)
    forall e a b.
    HsFnPrecursor e (a -> b) -> Parameter e a -> HsFnPrecursor e b
    <#> Parameter PandocError WriterOptions
    -> Parameter PandocError (Maybe WriterOptions)
    forall e a. Parameter e a -> Parameter e (Maybe a)
    opt (Peeker PandocError WriterOptions
    -> TypeSpec -> Text -> Text -> Parameter PandocError WriterOptions
    forall e a. Peeker e a -> TypeSpec -> Text -> Text -> Parameter e a
    parameter Peeker PandocError WriterOptions
    peekWriterOptions TypeSpec
    "WriterOptions" Text
    "writer_options"
                 ([Text] -> Text
    T.unlines
                  [ Text
    "options passed to the writer; may be a WriterOptions object"
                  , Text
    "or a table with a subset of the keys and values of a"
                  , Text
    "WriterOptions object; defaults to the default values"
                  , Text
    "documented in the manual."
                  ]))
        HsFnPrecursor PandocError (LuaE PandocError Text)
    -> FunctionResults PandocError Text
    -> DocumentedFunction PandocError
    forall e a.
    HsFnPrecursor e (LuaE e a)
    -> FunctionResults e a -> DocumentedFunction e
    =#> Pusher PandocError Text
    -> TypeSpec -> Text -> FunctionResults PandocError Text
    forall e a. Pusher e a -> TypeSpec -> Text -> FunctionResults e a
    functionResult Pusher PandocError Text
    forall e. Pusher e Text
    pushText TypeSpec
    "string" Text
    "rendered document"
        #? (T.unlines
           [ "Runs a classic custom Lua writer, using the functions defined"
           , "in the current environment."
           , ""
           , "Usage:"
           , ""
           , "    -- Adding this function converts a classic writer into a"
           , "    -- new-style custom writer."
           , "    function Writer (doc, opts)"
           , "      PANDOC_DOCUMENT = doc"
           , "      PANDOC_WRITER_OPTIONS = opts"
           , "      loadfile(PANDOC_SCRIPT_FILE)()"
           , "      return pandoc.write_classic(doc, opts)"
           , "    end"
           ])
      ]
     where
      walkElement :: b -> Filter -> LuaE e b
    walkElement b
    x Filter
    f =
            Filter -> b -> LuaE e b
    forall e a.
    (LuaError e, Walkable (SpliceList Inline) a) =>
    Filter -> a -> LuaE e a
    walkInlineSplicing Filter
    f b
    x
        LuaE e b -> (b -> LuaE e b) -> LuaE e b
    forall a b. LuaE e a -> (a -> LuaE e b) -> LuaE e b
    forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
    >>= Filter -> b -> LuaE e b
    forall e a.
    (LuaError e, Walkable [Inline] a) =>
    Filter -> a -> LuaE e a
    walkInlinesStraight Filter
    f
        LuaE e b -> (b -> LuaE e b) -> LuaE e b
    forall a b. LuaE e a -> (a -> LuaE e b) -> LuaE e b
    forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
    >>= Filter -> b -> LuaE e b
    forall e a.
    (LuaError e, Walkable (SpliceList Block) a) =>
    Filter -> a -> LuaE e a
    walkBlockSplicing Filter
    f
        LuaE e b -> (b -> LuaE e b) -> LuaE e b
    forall a b. LuaE e a -> (a -> LuaE e b) -> LuaE e b
    forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
    >>= Filter -> b -> LuaE e b
    forall e a.
    (LuaError e, Walkable [Block] a) =>
    Filter -> a -> LuaE e a
    walkBlocksStraight Filter
    f

    data PipeError = PipeError
      { PipeError -> Text
    pipeErrorCommand :: T.Text
      , PipeError -> Int
    pipeErrorCode :: Int
      , PipeError -> ByteString
    pipeErrorOutput :: BL.ByteString
      }

    peekPipeError :: LuaError e => StackIndex -> LuaE e PipeError
    peekPipeError :: forall e. LuaError e => StackIndex -> LuaE e PipeError
    peekPipeError StackIndex
    idx =
      Text -> Int -> ByteString -> PipeError
    PipeError
      (Text -> Int -> ByteString -> PipeError)
    -> LuaE e Text -> LuaE e (Int -> ByteString -> PipeError)
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    <$> (StackIndex -> Name -> LuaE e Type
    forall e. LuaError e => StackIndex -> Name -> LuaE e Type
    Lua.getfield StackIndex
    idx Name
    "command"    LuaE e Type -> LuaE e Text -> LuaE e Text
    forall a b. LuaE e a -> LuaE e b -> LuaE e b
    forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
    *> StackIndex -> LuaE e Text
    forall a e. (LuaError e, Peekable a) => StackIndex -> LuaE e a
    Lua.peek (-StackIndex
    1) LuaE e Text -> LuaE e () -> LuaE e Text
    forall a b. LuaE e a -> LuaE e b -> LuaE e a
    forall (f :: * -> *) a b. Applicative f => f a -> f b -> f a
    <* Int -> LuaE e ()
    forall e. Int -> LuaE e ()
    Lua.pop Int
    1)
      LuaE e (Int -> ByteString -> PipeError)
    -> LuaE e Int -> LuaE e (ByteString -> PipeError)
    forall a b. LuaE e (a -> b) -> LuaE e a -> LuaE e b
    forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
    <*> (StackIndex -> Name -> LuaE e Type
    forall e. LuaError e => StackIndex -> Name -> LuaE e Type
    Lua.getfield StackIndex
    idx Name
    "error_code" LuaE e Type -> LuaE e Int -> LuaE e Int
    forall a b. LuaE e a -> LuaE e b -> LuaE e b
    forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
    *> StackIndex -> LuaE e Int
    forall a e. (LuaError e, Peekable a) => StackIndex -> LuaE e a
    Lua.peek (-StackIndex
    1) LuaE e Int -> LuaE e () -> LuaE e Int
    forall a b. LuaE e a -> LuaE e b -> LuaE e a
    forall (f :: * -> *) a b. Applicative f => f a -> f b -> f a
    <* Int -> LuaE e ()
    forall e. Int -> LuaE e ()
    Lua.pop Int
    1)
      LuaE e (ByteString -> PipeError)
    -> LuaE e ByteString -> LuaE e PipeError
    forall a b. LuaE e (a -> b) -> LuaE e a -> LuaE e b
    forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
    <*> (StackIndex -> Name -> LuaE e Type
    forall e. LuaError e => StackIndex -> Name -> LuaE e Type
    Lua.getfield StackIndex
    idx Name
    "output"     LuaE e Type -> LuaE e ByteString -> LuaE e ByteString
    forall a b. LuaE e a -> LuaE e b -> LuaE e b
    forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
    *> StackIndex -> LuaE e ByteString
    forall a e. (LuaError e, Peekable a) => StackIndex -> LuaE e a
    Lua.peek (-StackIndex
    1) LuaE e ByteString -> LuaE e () -> LuaE e ByteString
    forall a b. LuaE e a -> LuaE e b -> LuaE e a
    forall (f :: * -> *) a b. Applicative f => f a -> f b -> f a
    <* Int -> LuaE e ()
    forall e. Int -> LuaE e ()
    Lua.pop Int
    1)

    pushPipeError :: LuaError e => Pusher e PipeError
    pushPipeError :: forall e. LuaError e => Pusher e PipeError
    pushPipeError PipeError
    pipeErr = do
      [(Name, PipeError -> LuaE e ())] -> PipeError -> LuaE e ()
    forall e a.
    LuaError e =>
    [(Name, a -> LuaE e ())] -> a -> LuaE e ()
    pushAsTable [ (Name
    "command"    , Pusher e Text
    forall e. Pusher e Text
    pushText Pusher e Text -> (PipeError -> Text) -> PipeError -> LuaE e ()
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . PipeError -> Text
    pipeErrorCommand)
                  , (Name
    "error_code" , Int -> LuaE e ()
    forall a e. (Integral a, Show a) => a -> LuaE e ()
    pushIntegral (Int -> LuaE e ()) -> (PipeError -> Int) -> PipeError -> LuaE e ()
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . PipeError -> Int
    pipeErrorCode)
                  , (Name
    "output"     , Pusher e ByteString
    forall e. Pusher e ByteString
    pushLazyByteString Pusher e ByteString
    -> (PipeError -> ByteString) -> PipeError -> LuaE e ()
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . PipeError -> ByteString
    pipeErrorOutput)
                  ] PipeError
    pipeErr
      LuaE e ()
    forall e. LuaError e => LuaE e ()
    pushPipeErrorMetaTable
      StackIndex -> LuaE e ()
    forall e. StackIndex -> LuaE e ()
    Lua.setmetatable (CInt -> StackIndex
    nth CInt
    2)
        where
          pushPipeErrorMetaTable :: LuaError e => LuaE e ()
          pushPipeErrorMetaTable :: forall e. LuaError e => LuaE e ()
    pushPipeErrorMetaTable = do
            v <- Name -> LuaE e Bool
    forall e. Name -> LuaE e Bool
    Lua.newmetatable Name
    "pandoc pipe error"
            when v $ do
              pushName "__tostring"
              pushHaskellFunction pipeErrorMessage
              rawset (nth 3)

          pipeErrorMessage :: LuaError e => LuaE e NumResults
          pipeErrorMessage :: forall e. LuaError e => LuaE e NumResults
    pipeErrorMessage = do
            (PipeError cmd errorCode output) <- StackIndex -> LuaE e PipeError
    forall e. LuaError e => StackIndex -> LuaE e PipeError
    peekPipeError (CInt -> StackIndex
    nthBottom CInt
    1)
            pushByteString . BSL.toStrict . BSL.concat $
              [ BSL.pack "Error running "
              , BSL.pack $ T.unpack cmd
              , BSL.pack " (error code "
              , BSL.pack $ show errorCode
              , BSL.pack "): "
              , if output == mempty then BSL.pack "<no output>" else output
              ]
            return (NumResults 1)

    -- | Peek the environment in which the `read` function operates.
    peekReadEnv :: Peeker PandocError FileTree
    peekReadEnv :: Peeker PandocError FileTree
    peekReadEnv StackIndex
    idx = do
      mtime <- LuaE PandocError UTCTime -> Peek PandocError UTCTime
    forall e a. LuaE e a -> Peek e a
    liftLua (LuaE PandocError UTCTime -> Peek PandocError UTCTime)
    -> (PandocLua UTCTime -> LuaE PandocError UTCTime)
    -> PandocLua UTCTime
    -> Peek PandocError UTCTime
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . PandocLua UTCTime -> LuaE PandocError UTCTime
    forall a. PandocLua a -> LuaE PandocError a
    unPandocLua (PandocLua UTCTime -> Peek PandocError UTCTime)
    -> PandocLua UTCTime -> Peek PandocError UTCTime
    forall a b. (a -> b) -> a -> b
    $ PandocLua UTCTime
    forall (m :: * -> *). PandocMonad m => m UTCTime
    getCurrentTime

      -- Add files from file system
      files <- peekList peekString idx
      tree1 <- liftLua $
               foldM (\FileTree
    tree String
    fp -> IO FileTree -> LuaE PandocError FileTree
    forall a. IO a -> LuaE PandocError a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO FileTree -> LuaE PandocError FileTree)
    -> IO FileTree -> LuaE PandocError FileTree
    forall a b. (a -> b) -> a -> b
    $ FileTree -> String -> IO FileTree
    addToFileTree FileTree
    tree String
    fp) mempty files

      -- Add files from key-value pairs
      let toFileInfo ByteString
    contents = FileInfo
            { infoFileMTime :: UTCTime
    infoFileMTime = UTCTime
    mtime
            , infoFileContents :: ByteString
    infoFileContents = ByteString
    contents
            }
      pairs <- peekKeyValuePairs peekString (fmap toFileInfo . peekByteString) idx
      let tree2 = ((String, FileInfo) -> FileTree -> FileTree)
    -> FileTree -> [(String, FileInfo)] -> FileTree
    forall a b. (a -> b -> b) -> b -> [a] -> b
    forall (t :: * -> *) a b.
    Foldable t =>
    (a -> b -> b) -> b -> t a -> b
    foldr ((String -> FileInfo -> FileTree -> FileTree)
    -> (String, FileInfo) -> FileTree -> FileTree
    forall a b c. (a -> b -> c) -> (a, b) -> c
    uncurry String -> FileInfo -> FileTree -> FileTree
    insertInFileTree) FileTree
    tree1 [(String, FileInfo)]
    pairs

      -- Return ersatz file system.
      pure tree2