Copyright | Copyright (C) 2016-2020 Jesse Rosenthal John MacFarlane |
---|---|
License | GNU GPL, version 2 or above |
Maintainer | Jesse Rosenthal <jrosenthal@jhu.edu> |
Stability | alpha |
Portability | portable |
Safe Haskell | None |
Language | Haskell2010 |
This module defines a type class, PandocMonad
, for pandoc readers
and writers. A pure instance PandocPure
and an impure instance
PandocIO
are provided. This allows users of the library to choose
whether they want conversions to perform IO operations (such as
reading include files or images).
Synopsis
- data CommonState = CommonState {
- stLog :: [LogMessage]
- stUserDataDir :: Maybe FilePath
- stSourceURL :: Maybe Text
- stRequestHeaders :: [(Text, Text)]
- stNoCheckCertificate :: Bool
- stMediaBag :: MediaBag
- stTranslations :: Maybe (Lang, Maybe Translations)
- stInputFiles :: [FilePath]
- stOutputFile :: Maybe FilePath
- stResourcePath :: [FilePath]
- stVerbosity :: Verbosity
- stTrace :: Bool
- newtype PandocIO a = PandocIO {
- unPandocIO :: ExceptT PandocError (StateT CommonState IO) a
- runIO :: PandocIO a -> IO (Either PandocError a)
- runIOorExplode :: PandocIO a -> IO a
- extractMedia :: FilePath -> Pandoc -> PandocIO Pandoc
- class (Functor m, Applicative m, Monad m, MonadError PandocError m) => PandocMonad m where
- lookupEnv :: Text -> m (Maybe Text)
- getCurrentTime :: m UTCTime
- getCurrentTimeZone :: m TimeZone
- newStdGen :: m StdGen
- newUniqueHash :: m Int
- openURL :: Text -> m (ByteString, Maybe MimeType)
- readFileLazy :: FilePath -> m ByteString
- readFileStrict :: FilePath -> m ByteString
- glob :: String -> m [FilePath]
- fileExists :: FilePath -> m Bool
- getDataFileName :: FilePath -> m FilePath
- getModificationTime :: FilePath -> m UTCTime
- getCommonState :: m CommonState
- putCommonState :: CommonState -> m ()
- getsCommonState :: (CommonState -> a) -> m a
- modifyCommonState :: (CommonState -> CommonState) -> m ()
- logOutput :: LogMessage -> m ()
- trace :: Text -> m ()
- getPOSIXTime :: PandocMonad m => m POSIXTime
- getZonedTime :: PandocMonad m => m ZonedTime
- readFileFromDirs :: PandocMonad m => [FilePath] -> FilePath -> m (Maybe Text)
- report :: PandocMonad m => LogMessage -> m ()
- setTrace :: PandocMonad m => Bool -> m ()
- setRequestHeader :: PandocMonad m => Text -> Text -> m ()
- setNoCheckCertificate :: PandocMonad m => Bool -> m ()
- getLog :: PandocMonad m => m [LogMessage]
- setVerbosity :: PandocMonad m => Verbosity -> m ()
- getVerbosity :: PandocMonad m => m Verbosity
- getMediaBag :: PandocMonad m => m MediaBag
- setMediaBag :: PandocMonad m => MediaBag -> m ()
- insertMedia :: PandocMonad m => FilePath -> Maybe MimeType -> ByteString -> m ()
- setUserDataDir :: PandocMonad m => Maybe FilePath -> m ()
- getUserDataDir :: PandocMonad m => m (Maybe FilePath)
- fetchItem :: PandocMonad m => Text -> m (ByteString, Maybe MimeType)
- fetchMediaResource :: PandocMonad m => Text -> m (FilePath, Maybe MimeType, ByteString)
- getInputFiles :: PandocMonad m => m [FilePath]
- setInputFiles :: PandocMonad m => [FilePath] -> m ()
- getOutputFile :: PandocMonad m => m (Maybe FilePath)
- setOutputFile :: PandocMonad m => Maybe FilePath -> m ()
- setResourcePath :: PandocMonad m => [FilePath] -> m ()
- getResourcePath :: PandocMonad m => m [FilePath]
- readDefaultDataFile :: PandocMonad m => FilePath -> m ByteString
- readDataFile :: PandocMonad m => FilePath -> m ByteString
- fillMediaBag :: PandocMonad m => Pandoc -> m Pandoc
- toLang :: PandocMonad m => Maybe Text -> m (Maybe Lang)
- setTranslations :: PandocMonad m => Lang -> m ()
- translateTerm :: PandocMonad m => Term -> m Text
- makeCanonical :: FilePath -> FilePath
- data PureState = PureState {
- stStdGen :: StdGen
- stWord8Store :: [Word8]
- stUniqStore :: [Int]
- stEnv :: [(Text, Text)]
- stTime :: UTCTime
- stTimeZone :: TimeZone
- stReferenceDocx :: Archive
- stReferencePptx :: Archive
- stReferenceODT :: Archive
- stFiles :: FileTree
- stUserDataFiles :: FileTree
- stCabalDataFiles :: FileTree
- getPureState :: PandocPure PureState
- getsPureState :: (PureState -> a) -> PandocPure a
- putPureState :: PureState -> PandocPure ()
- modifyPureState :: (PureState -> PureState) -> PandocPure ()
- newtype PandocPure a = PandocPure {}
- data FileTree
- data FileInfo = FileInfo {}
- addToFileTree :: FileTree -> FilePath -> IO FileTree
- insertInFileTree :: FilePath -> FileInfo -> FileTree -> FileTree
- runPure :: PandocPure a -> Either PandocError a
- data Translations
Documentation
data CommonState Source #
CommonState
represents state that is used by all
instances of PandocMonad
. Normally users should not
need to interact with it directly; instead, auxiliary
functions like setVerbosity
and withMediaBag
should be used.
CommonState | |
|
Instances
Default CommonState Source # | |
Defined in Text.Pandoc.Class.CommonState def :: CommonState # | |
Peekable CommonState Source # | |
Defined in Text.Pandoc.Lua.Marshaling.CommonState peek :: StackIndex -> Lua CommonState # | |
Pushable CommonState Source # | |
Defined in Text.Pandoc.Lua.Marshaling.CommonState push :: CommonState -> Lua () # |
Instances
runIOorExplode :: PandocIO a -> IO a Source #
Evaluate a PandocIO
operation, handling any errors
by exiting with an appropriate message and error status.
extractMedia :: FilePath -> Pandoc -> PandocIO Pandoc Source #
Extract media from the mediabag into a directory.
class (Functor m, Applicative m, Monad m, MonadError PandocError m) => PandocMonad m where Source #
The PandocMonad typeclass contains all the potentially
IO-related functions used in pandoc's readers and writers.
Instances of this typeclass may implement these functions
in IO (as in PandocIO
) or using an internal state that
represents a file system, time, and so on (as in PandocPure
).
lookupEnv, getCurrentTime, getCurrentTimeZone, newStdGen, newUniqueHash, openURL, readFileLazy, readFileStrict, glob, fileExists, getDataFileName, getModificationTime, getCommonState, putCommonState, logOutput
lookupEnv :: Text -> m (Maybe Text) Source #
Lookup an environment variable.
getCurrentTime :: m UTCTime Source #
Get the current (UTC) time.
getCurrentTimeZone :: m TimeZone Source #
Get the locale's time zone.
newStdGen :: m StdGen Source #
Return a new generator for random numbers.
newUniqueHash :: m Int Source #
Return a new unique integer.
openURL :: Text -> m (ByteString, Maybe MimeType) Source #
Retrieve contents and mime type from a URL, raising an error on failure.
readFileLazy :: FilePath -> m ByteString Source #
Read the lazy ByteString contents from a file path, raising an error on failure.
readFileStrict :: FilePath -> m ByteString Source #
Read the strict ByteString contents from a file path, raising an error on failure.
glob :: String -> m [FilePath] Source #
Return a list of paths that match a glob, relative to
the working directory. See Glob
for
the glob syntax.
fileExists :: FilePath -> m Bool Source #
Returns True if file exists.
getDataFileName :: FilePath -> m FilePath Source #
Returns the path of data file.
getModificationTime :: FilePath -> m UTCTime Source #
Return the modification time of a file.
getCommonState :: m CommonState Source #
Get the value of the CommonState
used by all instances
of PandocMonad
.
putCommonState :: CommonState -> m () Source #
Set the value of the CommonState
used by all instances
of PandocMonad
.
| Get the value of a specific field of CommonState
.
getsCommonState :: (CommonState -> a) -> m a Source #
Get the value of a specific field of CommonState
.
modifyCommonState :: (CommonState -> CommonState) -> m () Source #
Modify the CommonState
.
logOutput :: LogMessage -> m () Source #
Output a log message.
trace :: Text -> m () Source #
Output a debug message to sterr, using trace
,
if tracing is enabled. Note: this writes to stderr even in
pure instances.
Instances
getPOSIXTime :: PandocMonad m => m POSIXTime Source #
Get the POSIX time.
getZonedTime :: PandocMonad m => m ZonedTime Source #
Get the zoned time.
readFileFromDirs :: PandocMonad m => [FilePath] -> FilePath -> m (Maybe Text) Source #
Read file, checking in any number of directories.
report :: PandocMonad m => LogMessage -> m () Source #
setTrace :: PandocMonad m => Bool -> m () Source #
:: PandocMonad m | |
=> Text | Header name |
-> Text | Value |
-> m () |
Set request header to use in HTTP requests.
setNoCheckCertificate :: PandocMonad m => Bool -> m () Source #
Determine whether certificate validation is disabled
getLog :: PandocMonad m => m [LogMessage] Source #
Get the accumulated log messages (in temporal order).
setVerbosity :: PandocMonad m => Verbosity -> m () Source #
Set the verbosity level.
getVerbosity :: PandocMonad m => m Verbosity Source #
Get the verbosity level.
getMediaBag :: PandocMonad m => m MediaBag Source #
Retrieve the media bag.
setMediaBag :: PandocMonad m => MediaBag -> m () Source #
Initialize the media bag.
insertMedia :: PandocMonad m => FilePath -> Maybe MimeType -> ByteString -> m () Source #
Insert an item into the media bag.
setUserDataDir :: PandocMonad m => Maybe FilePath -> m () Source #
Set the user data directory in common state.
getUserDataDir :: PandocMonad m => m (Maybe FilePath) Source #
Get the user data directory from common state.
fetchItem :: PandocMonad m => Text -> m (ByteString, Maybe MimeType) Source #
Fetch an image or other item from the local filesystem or the net. Returns raw content and maybe mime type.
fetchMediaResource :: PandocMonad m => Text -> m (FilePath, Maybe MimeType, ByteString) Source #
Fetch local or remote resource (like an image) and provide data suitable for adding it to the MediaBag.
getInputFiles :: PandocMonad m => m [FilePath] Source #
Retrieve the input filenames.
setInputFiles :: PandocMonad m => [FilePath] -> m () Source #
Set the input filenames.
getOutputFile :: PandocMonad m => m (Maybe FilePath) Source #
Retrieve the output filename.
setOutputFile :: PandocMonad m => Maybe FilePath -> m () Source #
Set the output filename.
setResourcePath :: PandocMonad m => [FilePath] -> m () Source #
Set the resource path searched by fetchItem
.
getResourcePath :: PandocMonad m => m [FilePath] Source #
Retrieve the resource path searched by fetchItem
.
readDefaultDataFile :: PandocMonad m => FilePath -> m ByteString Source #
Read file from from the default data files.
readDataFile :: PandocMonad m => FilePath -> m ByteString Source #
Read file from user data directory or, if not found there, from the default data files.
fillMediaBag :: PandocMonad m => Pandoc -> m Pandoc Source #
Traverse tree, filling media bag for any images that aren't already in the media bag.
toLang :: PandocMonad m => Maybe Text -> m (Maybe Lang) Source #
Convert BCP47 string to a Lang, issuing warning if there are problems.
setTranslations :: PandocMonad m => Lang -> m () Source #
Select the language to use with translateTerm
.
Note that this does not read a translation file;
that is only done the first time translateTerm
is
used.
translateTerm :: PandocMonad m => Term -> m Text Source #
Get a translation from the current term map. Issue a warning if the term is not defined.
makeCanonical :: FilePath -> FilePath Source #
Canonicalizes a file path by removing redundant .
and ..
.
The PureState
contains ersatz representations
of things that would normally be obtained through IO.
PureState | |
|
getPureState :: PandocPure PureState Source #
Retrieve the underlying state of the
type.PandocPure
getsPureState :: (PureState -> a) -> PandocPure a Source #
Retrieve a value from the underlying state of the
type.PandocPure
putPureState :: PureState -> PandocPure () Source #
Set a new state for the
type.PandocPure
modifyPureState :: (PureState -> PureState) -> PandocPure () Source #
Modify the underlying state of the
type.PandocPure
newtype PandocPure a Source #
Instances
Basis of the mock file system used by
.PandocPure
Captures all file-level information necessary for a
conforming mock file system.PandocMonad
addToFileTree :: FileTree -> FilePath -> IO FileTree Source #
Add the specified file to the FileTree. If file is a directory, add its contents recursively.
insertInFileTree :: FilePath -> FileInfo -> FileTree -> FileTree Source #
Insert an ersatz file into the FileTree
.
runPure :: PandocPure a -> Either PandocError a Source #
Run a PandocPure
operation.
data Translations Source #