{-# LANGUAGE ScopedTypeVariables, FlexibleInstances #-} {- Copyright (C) 2006-2010 John MacFarlane This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -} {- | Module : Text.Pandoc Copyright : Copyright (C) 2006-2010 John MacFarlane License : GNU GPL, version 2 or above Maintainer : John MacFarlane Stability : alpha Portability : portable This helper module exports the main writers, readers, and data structure definitions from the Pandoc libraries. A typical application will chain together a reader and a writer to convert strings from one format to another. For example, the following simple program will act as a filter converting markdown fragments to reStructuredText, using reference-style links instead of inline links: > module Main where > import Text.Pandoc > -- include the following two lines only if you're using ghc < 6.12: > import Prelude hiding (getContents, putStrLn) > import System.IO.UTF8 > > markdownToRST :: String -> String > markdownToRST = > (writeRST defaultWriterOptions {writerReferenceLinks = True}) . > readMarkdown defaultParserState > > main = getContents >>= putStrLn . markdownToRST Note: all of the readers assume that the input text has @'\n'@ line endings. So if you get your input text from a web form, you should remove @'\r'@ characters using @filter (/='\r')@. -} module Text.Pandoc ( -- * Definitions module Text.Pandoc.Definition -- * Generics , module Text.Pandoc.Generic -- * Options , module Text.Pandoc.Options -- * Lists of readers and writers , readers , writers -- * Readers: converting /to/ Pandoc format , readMarkdown , readRST , readLaTeX , readHtml , readTextile , readDocBook , readNative -- * Parser state used in readers , ParserState (..) , defaultParserState , ParserContext (..) , QuoteContext (..) , KeyTable , NoteTable , HeaderType (..) -- * Writers: converting /from/ Pandoc format , Writer (..) , writeNative , writeMarkdown , writePlain , writeRST , writeLaTeX , writeConTeXt , writeTexinfo , writeHtml , writeHtmlString , writeDocbook , writeOpenDocument , writeMan , writeMediaWiki , writeTextile , writeRTF , writeODT , writeDocx , writeEPUB , writeFB2 , writeOrg , writeAsciiDoc -- * Writer options used in writers , WriterOptions (..) , HTMLSlideVariant (..) , HTMLMathMethod (..) , CiteMethod (..) , defaultWriterOptions -- * Rendering templates and default templates , module Text.Pandoc.Templates -- * Version , pandocVersion -- * Miscellaneous , rtfEmbedImage , jsonFilter , ToJsonFilter(..) -- * From Data.Default , def ) where import Text.Pandoc.Definition import Text.Pandoc.Generic import Text.Pandoc.Readers.Markdown import Text.Pandoc.Readers.RST import Text.Pandoc.Readers.DocBook import Text.Pandoc.Readers.LaTeX import Text.Pandoc.Readers.HTML import Text.Pandoc.Readers.Textile import Text.Pandoc.Readers.Native import Text.Pandoc.Writers.Native import Text.Pandoc.Writers.Markdown import Text.Pandoc.Writers.RST import Text.Pandoc.Writers.LaTeX import Text.Pandoc.Writers.ConTeXt import Text.Pandoc.Writers.Texinfo import Text.Pandoc.Writers.HTML import Text.Pandoc.Writers.ODT import Text.Pandoc.Writers.Docx import Text.Pandoc.Writers.EPUB import Text.Pandoc.Writers.FB2 import Text.Pandoc.Writers.Docbook import Text.Pandoc.Writers.OpenDocument import Text.Pandoc.Writers.Man import Text.Pandoc.Writers.RTF import Text.Pandoc.Writers.MediaWiki import Text.Pandoc.Writers.Textile import Text.Pandoc.Writers.Org import Text.Pandoc.Writers.AsciiDoc import Text.Pandoc.Templates import Text.Pandoc.Parsing import Text.Pandoc.Shared import Text.Pandoc.Options import Data.ByteString.Lazy (ByteString) import Data.Version (showVersion) import Text.JSON.Generic import Paths_pandoc (version) import Data.Default -- | Version number of pandoc library. pandocVersion :: String pandocVersion = showVersion version -- | Association list of formats and readers. readers :: [(String, ParserState -> String -> Pandoc)] readers = [("native" , \_ -> readNative) ,("json" , \_ -> decodeJSON) ,("markdown" , readMarkdown) ,("markdown+lhs" , \st -> readMarkdown st{ stateOptions = let oldopts = stateOptions st in oldopts{ readerLiterateHaskell = True} }) ,("rst" , readRST) ,("rst+lhs" , \st -> readRST st{ stateOptions = let oldopts = stateOptions st in oldopts{ readerLiterateHaskell = True} }) ,("docbook" , readDocBook) ,("textile" , readTextile) -- TODO : textile+lhs ,("html" , readHtml) ,("latex" , readLaTeX) ,("latex+lhs" , \st -> readLaTeX st{ stateOptions = let oldopts = stateOptions st in oldopts{ readerLiterateHaskell = True} }) ] data Writer = PureStringWriter (WriterOptions -> Pandoc -> String) | IOStringWriter (WriterOptions -> Pandoc -> IO String) | IOByteStringWriter (WriterOptions -> Pandoc -> IO ByteString) -- | Association list of formats and writers. writers :: [ ( String, Writer ) ] writers = [ ("native" , PureStringWriter writeNative) ,("json" , PureStringWriter $ \_ -> encodeJSON) ,("docx" , IOByteStringWriter writeDocx) ,("odt" , IOByteStringWriter writeODT) ,("epub" , IOByteStringWriter writeEPUB) ,("fb2" , IOStringWriter writeFB2) ,("html" , PureStringWriter writeHtmlString) ,("html5" , PureStringWriter $ \o -> writeHtmlString o{ writerHtml5 = True }) ,("html+lhs" , PureStringWriter $ \o -> writeHtmlString o{ writerLiterateHaskell = True }) ,("html5+lhs" , PureStringWriter $ \o -> writeHtmlString o{ writerLiterateHaskell = True, writerHtml5 = True }) ,("s5" , PureStringWriter $ \o -> writeHtmlString o{ writerSlideVariant = S5Slides , writerTableOfContents = False }) ,("slidy" , PureStringWriter $ \o -> writeHtmlString o{ writerSlideVariant = SlidySlides }) ,("slideous" , PureStringWriter $ \o -> writeHtmlString o{ writerSlideVariant = SlideousSlides }) ,("dzslides" , PureStringWriter $ \o -> writeHtmlString o{ writerSlideVariant = DZSlides , writerHtml5 = True }) ,("docbook" , PureStringWriter writeDocbook) ,("opendocument" , PureStringWriter writeOpenDocument) ,("latex" , PureStringWriter writeLaTeX) ,("latex+lhs" , PureStringWriter $ \o -> writeLaTeX o{ writerLiterateHaskell = True }) ,("beamer" , PureStringWriter $ \o -> writeLaTeX o{ writerBeamer = True }) ,("beamer+lhs" , PureStringWriter $ \o -> writeLaTeX o{ writerBeamer = True, writerLiterateHaskell = True }) ,("context" , PureStringWriter writeConTeXt) ,("texinfo" , PureStringWriter writeTexinfo) ,("man" , PureStringWriter writeMan) ,("markdown" , PureStringWriter writeMarkdown) ,("markdown+lhs" , PureStringWriter $ \o -> writeMarkdown o{ writerLiterateHaskell = True }) ,("plain" , PureStringWriter writePlain) ,("rst" , PureStringWriter writeRST) ,("rst+lhs" , PureStringWriter $ \o -> writeRST o{ writerLiterateHaskell = True }) ,("mediawiki" , PureStringWriter writeMediaWiki) ,("textile" , PureStringWriter writeTextile) ,("rtf" , PureStringWriter writeRTF) ,("org" , PureStringWriter writeOrg) ,("asciidoc" , PureStringWriter writeAsciiDoc) ] {-# DEPRECATED jsonFilter "Use toJsonFilter instead" #-} -- | Converts a transformation on the Pandoc AST into a function -- that reads and writes a JSON-encoded string. This is useful -- for writing small scripts. jsonFilter :: (Pandoc -> Pandoc) -> String -> String jsonFilter f = encodeJSON . f . decodeJSON -- | 'toJsonFilter' convert a function into a filter that reads pandoc's json output -- from stdin, transforms it by walking the AST and applying the specified -- function, and writes the result as json to stdout. Usage example: -- -- > -- capitalize.hs -- > -- compile with: ghc --make capitalize -- > -- run with: pandoc -t json | ./capitalize | pandoc -f json -- > -- > import Text.Pandoc -- > import Data.Char (toUpper) -- > -- > main :: IO () -- > main = toJsonFilter capitalizeStrings -- > -- > capitalizeStrings :: Inline -> Inline -- > capitalizeStrings (Str s) = Str $ map toUpper s -- > capitalizeStrings x = x -- -- The function can be any type @(a -> a)@, @(a -> IO a)@, @(a -> [a])@, -- or @(a -> IO [a])@, where @a@ is an instance of 'Data'. -- So, for example, @a@ can be 'Pandoc', 'Inline', 'Block', ['Inline'], -- ['Block'], 'Meta', 'ListNumberStyle', 'Alignment', 'ListNumberDelim', -- 'QuoteType', etc. See 'Text.Pandoc.Definition'. class ToJsonFilter a where toJsonFilter :: a -> IO () instance (Data a) => ToJsonFilter (a -> a) where toJsonFilter f = getContents >>= putStr . encodeJSON . (bottomUp f :: Pandoc -> Pandoc) . decodeJSON instance (Data a) => ToJsonFilter (a -> IO a) where toJsonFilter f = getContents >>= (bottomUpM f :: Pandoc -> IO Pandoc) . decodeJSON >>= putStr . encodeJSON instance (Data a) => ToJsonFilter (a -> [a]) where toJsonFilter f = getContents >>= putStr . encodeJSON . (bottomUp (concatMap f) :: Pandoc -> Pandoc) . decodeJSON instance (Data a) => ToJsonFilter (a -> IO [a]) where toJsonFilter f = getContents >>= (bottomUpM (fmap concat . mapM f) :: Pandoc -> IO Pandoc) . decodeJSON >>= putStr . encodeJSON