{-# LANGUAGE FlexibleInstances #-} {-# LANGUAGE MultiParamTypeClasses #-} {-# LANGUAGE OverloadedStrings #-} {-# LANGUAGE PatternGuards #-} {-# LANGUAGE ScopedTypeVariables #-} {- Copyright (C) 2006-2017 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.Readers.LaTeX Copyright : Copyright (C) 2006-2017 John MacFarlane License : GNU GPL, version 2 or above Maintainer : John MacFarlane Stability : alpha Portability : portable Conversion of LaTeX to 'Pandoc' document. -} module Text.Pandoc.Readers.LaTeX ( readLaTeX, applyMacros, rawLaTeXInline, rawLaTeXBlock, inlineCommand, tokenize, untokenize ) where import Control.Applicative (many, optional, (<|>)) import Control.Monad import Control.Monad.Except (throwError) import Control.Monad.Trans (lift) import Data.Char (chr, isAlphaNum, isDigit, isLetter, ord, toLower) import Data.Default import Data.List (intercalate, isPrefixOf) import qualified Data.Map as M import Data.Maybe (fromMaybe, maybeToList) import qualified Data.Set as Set import Data.Text (Text) import qualified Data.Text as T import Safe (minimumDef) import System.FilePath (addExtension, replaceExtension, takeExtension) import Text.Pandoc.BCP47 (Lang (..), renderLang) import Text.Pandoc.Builder import Text.Pandoc.Class (PandocMonad, PandocPure, getResourcePath, lookupEnv, readFileFromDirs, report, setResourcePath, setTranslations, translateTerm) import Text.Pandoc.Error (PandocError (PandocMacroLoop, PandocParseError, PandocParsecError)) import Text.Pandoc.Highlighting (fromListingsLanguage, languagesByExtension) import Text.Pandoc.ImageSize (numUnit, showFl) import Text.Pandoc.Logging import Text.Pandoc.Options import Text.Pandoc.Parsing hiding (blankline, many, mathDisplay, mathInline, optional, space, spaces, withRaw, (<|>)) import Text.Pandoc.Readers.LaTeX.Types (ExpansionPoint (..), Macro (..), Tok (..), TokType (..)) import Text.Pandoc.Shared import qualified Text.Pandoc.Translations as Translations import Text.Pandoc.Walk import Text.Parsec.Pos -- for debugging: -- import Text.Pandoc.Extensions (getDefaultExtensions) -- import Text.Pandoc.Class (runIOorExplode, PandocIO) -- import Debug.Trace (traceShowId) -- | Parse LaTeX from string and return 'Pandoc' document. readLaTeX :: PandocMonad m => ReaderOptions -- ^ Reader options -> Text -- ^ String to parse (assumes @'\n'@ line endings) -> m Pandoc readLaTeX opts ltx = do parsed <- runParserT parseLaTeX def{ sOptions = opts } "source" (tokenize "source" (crFilter ltx)) case parsed of Right result -> return result Left e -> throwError $ PandocParsecError (T.unpack ltx) e parseLaTeX :: PandocMonad m => LP m Pandoc parseLaTeX = do bs <- blocks eof st <- getState let meta = sMeta st let doc' = doc bs let headerLevel (Header n _ _) = [n] headerLevel _ = [] let bottomLevel = minimumDef 1 $ query headerLevel doc' let adjustHeaders m (Header n attr ils) = Header (n+m) attr ils adjustHeaders _ x = x let (Pandoc _ bs') = -- handle the case where you have \part or \chapter (if bottomLevel < 1 then walk (adjustHeaders (1 - bottomLevel)) else id) $ walk (resolveRefs (sLabels st)) doc' return $ Pandoc meta bs' resolveRefs :: M.Map String [Inline] -> Inline -> Inline resolveRefs labels x@(Link (ident,classes,kvs) _ _) = case (lookup "reference-type" kvs, lookup "reference" kvs) of (Just "ref", Just lab) -> case M.lookup lab labels of Just txt -> Link (ident,classes,kvs) txt ('#':lab, "") Nothing -> x _ -> x resolveRefs _ x = x -- testParser :: LP PandocIO a -> Text -> IO a -- testParser p t = do -- res <- runIOorExplode (runParserT p defaultLaTeXState{ -- sOptions = def{ readerExtensions = -- enableExtension Ext_raw_tex $ -- getDefaultExtensions "latex" }} "source" (tokenize "source" t)) -- case res of -- Left e -> error (show e) -- Right r -> return r newtype HeaderNum = HeaderNum [Int] deriving (Show) renderHeaderNum :: HeaderNum -> String renderHeaderNum (HeaderNum xs) = intercalate "." (map show xs) incrementHeaderNum :: Int -> HeaderNum -> HeaderNum incrementHeaderNum level (HeaderNum ns) = HeaderNum $ case reverse (take level (ns ++ repeat 0)) of (x:xs) -> reverse (x+1 : xs) [] -> [] -- shouldn't happen data LaTeXState = LaTeXState{ sOptions :: ReaderOptions , sMeta :: Meta , sQuoteContext :: QuoteContext , sMacros :: M.Map Text Macro , sContainers :: [String] , sHeaders :: M.Map Inlines String , sLogMessages :: [LogMessage] , sIdentifiers :: Set.Set String , sVerbatimMode :: Bool , sCaption :: Maybe Inlines , sInListItem :: Bool , sInTableCell :: Bool , sLastHeaderNum :: HeaderNum , sLabels :: M.Map String [Inline] , sToggles :: M.Map String Bool } deriving Show defaultLaTeXState :: LaTeXState defaultLaTeXState = LaTeXState{ sOptions = def , sMeta = nullMeta , sQuoteContext = NoQuote , sMacros = M.empty , sContainers = [] , sHeaders = M.empty , sLogMessages = [] , sIdentifiers = Set.empty , sVerbatimMode = False , sCaption = Nothing , sInListItem = False , sInTableCell = False , sLastHeaderNum = HeaderNum [] , sLabels = M.empty , sToggles = M.empty } instance PandocMonad m => HasQuoteContext LaTeXState m where getQuoteContext = sQuoteContext <$> getState withQuoteContext context parser = do oldState <- getState let oldQuoteContext = sQuoteContext oldState setState oldState { sQuoteContext = context } result <- parser newState <- getState setState newState { sQuoteContext = oldQuoteContext } return result instance HasLogMessages LaTeXState where addLogMessage msg st = st{ sLogMessages = msg : sLogMessages st } getLogMessages st = reverse $ sLogMessages st instance HasIdentifierList LaTeXState where extractIdentifierList = sIdentifiers updateIdentifierList f st = st{ sIdentifiers = f $ sIdentifiers st } instance HasIncludeFiles LaTeXState where getIncludeFiles = sContainers addIncludeFile f s = s{ sContainers = f : sContainers s } dropLatestIncludeFile s = s { sContainers = drop 1 $ sContainers s } instance HasHeaderMap LaTeXState where extractHeaderMap = sHeaders updateHeaderMap f st = st{ sHeaders = f $ sHeaders st } instance HasMacros LaTeXState where extractMacros st = sMacros st updateMacros f st = st{ sMacros = f (sMacros st) } instance HasReaderOptions LaTeXState where extractReaderOptions = sOptions instance HasMeta LaTeXState where setMeta field val st = st{ sMeta = setMeta field val $ sMeta st } deleteMeta field st = st{ sMeta = deleteMeta field $ sMeta st } instance Default LaTeXState where def = defaultLaTeXState type LP m = ParserT [Tok] LaTeXState m withVerbatimMode :: PandocMonad m => LP m a -> LP m a withVerbatimMode parser = do updateState $ \st -> st{ sVerbatimMode = True } result <- parser updateState $ \st -> st{ sVerbatimMode = False } return result rawLaTeXParser :: (PandocMonad m, HasMacros s, HasReaderOptions s) => LP m a -> ParserT String s m (a, String) rawLaTeXParser parser = do inp <- getInput let toks = tokenize "source" $ T.pack inp pstate <- getState let lstate = def{ sOptions = extractReaderOptions pstate , sMacros = extractMacros pstate } let rawparser = (,) <$> withRaw parser <*> getState res <- lift $ runParserT rawparser lstate "chunk" toks case res of Left _ -> mzero Right ((val, raw), st) -> do updateState (updateMacros (sMacros st <>)) rawstring <- takeP (T.length (untokenize raw)) return (val, rawstring) applyMacros :: (PandocMonad m, HasMacros s, HasReaderOptions s) => String -> ParserT String s m String applyMacros s = (guardDisabled Ext_latex_macros >> return s) <|> do let retokenize = doMacros 0 *> (toksToString <$> many (satisfyTok (const True))) pstate <- getState let lstate = def{ sOptions = extractReaderOptions pstate , sMacros = extractMacros pstate } res <- runParserT retokenize lstate "math" (tokenize "math" (T.pack s)) case res of Left e -> fail (show e) Right s' -> return s' rawLaTeXBlock :: (PandocMonad m, HasMacros s, HasReaderOptions s) => ParserT String s m String rawLaTeXBlock = do lookAhead (try (char '\\' >> letter)) snd <$> rawLaTeXParser (environment <|> macroDef <|> blockCommand) rawLaTeXInline :: (PandocMonad m, HasMacros s, HasReaderOptions s) => ParserT String s m String rawLaTeXInline = do lookAhead (try (char '\\' >> letter) <|> char '$') snd <$> rawLaTeXParser (inlineEnvironment <|> inlineCommand') inlineCommand :: PandocMonad m => ParserT String ParserState m Inlines inlineCommand = do lookAhead (try (char '\\' >> letter) <|> char '$') fst <$> rawLaTeXParser (inlineEnvironment <|> inlineCommand') tokenize :: SourceName -> Text -> [Tok] tokenize sourcename = totoks (initialPos sourcename) totoks :: SourcePos -> Text -> [Tok] totoks pos t = case T.uncons t of Nothing -> [] Just (c, rest) | c == '\n' -> Tok pos Newline "\n" : totoks (setSourceColumn (incSourceLine pos 1) 1) rest | isSpaceOrTab c -> let (sps, rest') = T.span isSpaceOrTab t in Tok pos Spaces sps : totoks (incSourceColumn pos (T.length sps)) rest' | isAlphaNum c -> let (ws, rest') = T.span isAlphaNum t in Tok pos Word ws : totoks (incSourceColumn pos (T.length ws)) rest' | c == '%' -> let (cs, rest') = T.break (== '\n') rest in Tok pos Comment ("%" <> cs) : totoks (incSourceColumn pos (1 + T.length cs)) rest' | c == '\\' -> case T.uncons rest of Nothing -> [Tok pos (CtrlSeq " ") "\\"] Just (d, rest') | isLetterOrAt d -> -- \makeatletter is common in macro defs; -- ideally we should make tokenization sensitive -- to \makeatletter and \makeatother, but this is -- probably best for now let (ws, rest'') = T.span isLetterOrAt rest (ss, rest''') = T.span isSpaceOrTab rest'' in Tok pos (CtrlSeq ws) ("\\" <> ws <> ss) : totoks (incSourceColumn pos (1 + T.length ws + T.length ss)) rest''' | isSpaceOrTab d || d == '\n' -> let (w1, r1) = T.span isSpaceOrTab rest (w2, (w3, r3)) = case T.uncons r1 of Just ('\n', r2) -> (T.pack "\n", T.span isSpaceOrTab r2) _ -> (mempty, (mempty, r1)) in case T.uncons r3 of Just ('\n', _) -> Tok pos (CtrlSeq " ") ("\\" <> w1) : totoks (incSourceColumn pos 1) r1 _ -> Tok pos (CtrlSeq " ") ("\\" <> w1 <> w2 <> w3) : totoks (incSourceColumn pos 1) r3 | otherwise -> Tok pos (CtrlSeq (T.singleton d)) (T.pack [c,d]) : totoks (incSourceColumn pos 2) rest' | c == '#' -> let (t1, t2) = T.span (\d -> d >= '0' && d <= '9') rest in case safeRead (T.unpack t1) of Just i -> Tok pos (Arg i) ("#" <> t1) : totoks (incSourceColumn pos (1 + T.length t1)) t2 Nothing -> Tok pos Symbol ("#") : totoks (incSourceColumn pos 1) t2 | c == '^' -> case T.uncons rest of Just ('^', rest') -> case T.uncons rest' of Just (d, rest'') | isLowerHex d -> case T.uncons rest'' of Just (e, rest''') | isLowerHex e -> Tok pos Esc2 (T.pack ['^','^',d,e]) : totoks (incSourceColumn pos 4) rest''' _ -> Tok pos Esc1 (T.pack ['^','^',d]) : totoks (incSourceColumn pos 3) rest'' | d < '\128' -> Tok pos Esc1 (T.pack ['^','^',d]) : totoks (incSourceColumn pos 3) rest'' _ -> Tok pos Symbol ("^") : Tok (incSourceColumn pos 1) Symbol ("^") : totoks (incSourceColumn pos 2) rest' _ -> Tok pos Symbol ("^") : totoks (incSourceColumn pos 1) rest | otherwise -> Tok pos Symbol (T.singleton c) : totoks (incSourceColumn pos 1) rest isSpaceOrTab :: Char -> Bool isSpaceOrTab ' ' = True isSpaceOrTab '\t' = True isSpaceOrTab _ = False isLetterOrAt :: Char -> Bool isLetterOrAt '@' = True isLetterOrAt c = isLetter c isLowerHex :: Char -> Bool isLowerHex x = x >= '0' && x <= '9' || x >= 'a' && x <= 'f' untokenize :: [Tok] -> Text untokenize = mconcat . map untoken untoken :: Tok -> Text untoken (Tok _ _ t) = t satisfyTok :: PandocMonad m => (Tok -> Bool) -> LP m Tok satisfyTok f = try $ do res <- tokenPrim (T.unpack . untoken) updatePos matcher doMacros 0 -- apply macros on remaining input stream return res where matcher t | f t = Just t | otherwise = Nothing updatePos :: SourcePos -> Tok -> [Tok] -> SourcePos updatePos _spos _ (Tok pos _ _ : _) = pos updatePos spos _ [] = spos doMacros :: PandocMonad m => Int -> LP m () doMacros n = do verbatimMode <- sVerbatimMode <$> getState unless verbatimMode $ do inp <- getInput case inp of Tok spos (CtrlSeq "begin") _ : Tok _ Symbol "{" : Tok _ Word name : Tok _ Symbol "}" : ts -> handleMacros spos name ts Tok spos (CtrlSeq "end") _ : Tok _ Symbol "{" : Tok _ Word name : Tok _ Symbol "}" : ts -> handleMacros spos ("end" <> name) ts Tok _ (CtrlSeq "expandafter") _ : t : ts -> do setInput ts doMacros n getInput >>= setInput . combineTok t Tok spos (CtrlSeq name) _ : ts -> handleMacros spos name ts _ -> return () where combineTok (Tok spos (CtrlSeq name) x) (Tok _ Word w : ts) | T.all isLetterOrAt w = Tok spos (CtrlSeq (name <> w)) (x1 <> w <> x2) : ts where (x1, x2) = T.break isSpaceOrTab x combineTok t ts = t:ts handleMacros spos name ts = do macros <- sMacros <$> getState case M.lookup name macros of Nothing -> return () Just (Macro expansionPoint numargs optarg newtoks) -> do setInput ts let getarg = try $ spaces >> bracedOrToken args <- case optarg of Nothing -> count numargs getarg Just o -> (:) <$> option o bracketedToks <*> count (numargs - 1) getarg let addTok (Tok _ (Arg i) _) acc | i > 0 , i <= numargs = foldr addTok acc (args !! (i - 1)) -- add space if needed after control sequence -- see #4007 addTok (Tok _ (CtrlSeq x) txt) acc@(Tok _ Word _ : _) | not (T.null txt) && (isLetter (T.last txt)) = Tok spos (CtrlSeq x) (txt <> " ") : acc addTok t acc = setpos spos t : acc ts' <- getInput setInput $ foldr addTok ts' newtoks case expansionPoint of ExpandWhenUsed -> if n > 20 -- detect macro expansion loops then throwError $ PandocMacroLoop (T.unpack name) else doMacros (n + 1) ExpandWhenDefined -> return () setpos :: SourcePos -> Tok -> Tok setpos spos (Tok _ tt txt) = Tok spos tt txt anyControlSeq :: PandocMonad m => LP m Tok anyControlSeq = satisfyTok isCtrlSeq where isCtrlSeq (Tok _ (CtrlSeq _) _) = True isCtrlSeq _ = False anySymbol :: PandocMonad m => LP m Tok anySymbol = satisfyTok isSym where isSym (Tok _ Symbol _) = True isSym _ = False spaces :: PandocMonad m => LP m () spaces = skipMany (satisfyTok (tokTypeIn [Comment, Spaces, Newline])) spaces1 :: PandocMonad m => LP m () spaces1 = skipMany1 (satisfyTok (tokTypeIn [Comment, Spaces, Newline])) tokTypeIn :: [TokType] -> Tok -> Bool tokTypeIn toktypes (Tok _ tt _) = tt `elem` toktypes controlSeq :: PandocMonad m => Text -> LP m Tok controlSeq name = satisfyTok isNamed where isNamed (Tok _ (CtrlSeq n) _) = n == name isNamed _ = False symbol :: PandocMonad m => Char -> LP m Tok symbol c = satisfyTok isc where isc (Tok _ Symbol d) = case T.uncons d of Just (c',_) -> c == c' _ -> False isc _ = False symbolIn :: PandocMonad m => [Char] -> LP m Tok symbolIn cs = satisfyTok isInCs where isInCs (Tok _ Symbol d) = case T.uncons d of Just (c,_) -> c `elem` cs _ -> False isInCs _ = False sp :: PandocMonad m => LP m () sp = whitespace <|> endline whitespace :: PandocMonad m => LP m () whitespace = () <$ satisfyTok isSpaceTok where isSpaceTok (Tok _ Spaces _) = True isSpaceTok _ = False newlineTok :: PandocMonad m => LP m () newlineTok = () <$ satisfyTok isNewlineTok isNewlineTok :: Tok -> Bool isNewlineTok (Tok _ Newline _) = True isNewlineTok _ = False comment :: PandocMonad m => LP m () comment = () <$ satisfyTok isCommentTok where isCommentTok (Tok _ Comment _) = True isCommentTok _ = False anyTok :: PandocMonad m => LP m Tok anyTok = satisfyTok (const True) endline :: PandocMonad m => LP m () endline = try $ do newlineTok lookAhead anyTok notFollowedBy blankline blankline :: PandocMonad m => LP m () blankline = try $ skipMany whitespace *> newlineTok primEscape :: PandocMonad m => LP m Char primEscape = do Tok _ toktype t <- satisfyTok (tokTypeIn [Esc1, Esc2]) case toktype of Esc1 -> case T.uncons (T.drop 2 t) of Just (c, _) | c >= '\64' && c <= '\127' -> return (chr (ord c - 64)) | otherwise -> return (chr (ord c + 64)) Nothing -> fail "Empty content of Esc1" Esc2 -> case safeRead ('0':'x':T.unpack (T.drop 2 t)) of Just x -> return (chr x) Nothing -> fail $ "Could not read: " ++ T.unpack t _ -> fail "Expected an Esc1 or Esc2 token" -- should not happen bgroup :: PandocMonad m => LP m Tok bgroup = try $ do skipMany sp symbol '{' <|> controlSeq "bgroup" <|> controlSeq "begingroup" egroup :: PandocMonad m => LP m Tok egroup = symbol '}' <|> controlSeq "egroup" <|> controlSeq "endgroup" grouped :: (PandocMonad m, Monoid a) => LP m a -> LP m a grouped parser = try $ do bgroup -- first we check for an inner 'grouped', because -- {{a,b}} should be parsed the same as {a,b} try (grouped parser <* egroup) <|> (mconcat <$> manyTill parser egroup) braced :: PandocMonad m => LP m [Tok] braced = bgroup *> braced' 1 where braced' (n :: Int) = handleEgroup n <|> handleBgroup n <|> handleOther n handleEgroup n = do t <- egroup if n == 1 then return [] else (t:) <$> braced' (n - 1) handleBgroup n = do t <- bgroup (t:) <$> braced' (n + 1) handleOther n = do t <- anyTok (t:) <$> braced' n bracketed :: PandocMonad m => Monoid a => LP m a -> LP m a bracketed parser = try $ do symbol '[' mconcat <$> manyTill parser (symbol ']') dimenarg :: PandocMonad m => LP m Text dimenarg = try $ do ch <- option False $ True <$ symbol '=' Tok _ _ s <- satisfyTok isWordTok guard $ T.take 2 (T.reverse s) `elem` ["pt","pc","in","bp","cm","mm","dd","cc","sp"] let num = T.take (T.length s - 2) s guard $ T.length num > 0 guard $ T.all isDigit num return $ T.pack ['=' | ch] <> s -- inline elements: word :: PandocMonad m => LP m Inlines word = (str . T.unpack . untoken) <$> satisfyTok isWordTok regularSymbol :: PandocMonad m => LP m Inlines regularSymbol = (str . T.unpack . untoken) <$> satisfyTok isRegularSymbol where isRegularSymbol (Tok _ Symbol t) = not $ T.any isSpecial t isRegularSymbol _ = False isSpecial c = c `Set.member` specialChars specialChars :: Set.Set Char specialChars = Set.fromList "#$%&~_^\\{}" isWordTok :: Tok -> Bool isWordTok (Tok _ Word _) = True isWordTok _ = False inlineGroup :: PandocMonad m => LP m Inlines inlineGroup = do ils <- grouped inline if isNull ils then return mempty else return $ spanWith nullAttr ils -- we need the span so we can detitlecase bibtex entries; -- we need to know when something is {C}apitalized doLHSverb :: PandocMonad m => LP m Inlines doLHSverb = (codeWith ("",["haskell"],[]) . T.unpack . untokenize) <$> manyTill (satisfyTok (not . isNewlineTok)) (symbol '|') mkImage :: PandocMonad m => [(String, String)] -> String -> LP m Inlines mkImage options src = do let replaceTextwidth (k,v) = case numUnit v of Just (num, "\\textwidth") -> (k, showFl (num * 100) ++ "%") _ -> (k, v) let kvs = map replaceTextwidth $ filter (\(k,_) -> k `elem` ["width", "height"]) options let attr = ("",[], kvs) let alt = str "image" case takeExtension src of "" -> do defaultExt <- getOption readerDefaultImageExtension return $ imageWith attr (addExtension src defaultExt) "" alt _ -> return $ imageWith attr src "" alt doxspace :: PandocMonad m => LP m Inlines doxspace = (space <$ lookAhead (satisfyTok startsWithLetter)) <|> return mempty where startsWithLetter (Tok _ Word t) = case T.uncons t of Just (c, _) | isLetter c -> True _ -> False startsWithLetter _ = False -- converts e.g. \SI{1}[\$]{} to "$ 1" or \SI{1}{\euro} to "1 €" dosiunitx :: PandocMonad m => LP m Inlines dosiunitx = do skipopts value <- tok valueprefix <- option "" $ bracketed tok unit <- tok let emptyOr160 "" = "" emptyOr160 _ = "\160" return . mconcat $ [valueprefix, emptyOr160 valueprefix, value, emptyOr160 unit, unit] lit :: String -> LP m Inlines lit = pure . str removeDoubleQuotes :: Text -> Text removeDoubleQuotes t = Data.Maybe.fromMaybe t $ T.stripPrefix "\"" t >>= T.stripSuffix "\"" doubleQuote :: PandocMonad m => LP m Inlines doubleQuote = quoted' doubleQuoted (try $ count 2 $ symbol '`') (void $ try $ count 2 $ symbol '\'') <|> quoted' doubleQuoted ((:[]) <$> symbol '“') (void $ symbol '”') -- the following is used by babel for localized quotes: <|> quoted' doubleQuoted (try $ sequence [symbol '"', symbol '`']) (void $ try $ sequence [symbol '"', symbol '\'']) singleQuote :: PandocMonad m => LP m Inlines singleQuote = quoted' singleQuoted ((:[]) <$> symbol '`') (try $ symbol '\'' >> notFollowedBy (satisfyTok startsWithLetter)) <|> quoted' singleQuoted ((:[]) <$> symbol '‘') (try $ symbol '’' >> notFollowedBy (satisfyTok startsWithLetter)) where startsWithLetter (Tok _ Word t) = case T.uncons t of Just (c, _) | isLetter c -> True _ -> False startsWithLetter _ = False quoted' :: PandocMonad m => (Inlines -> Inlines) -> LP m [Tok] -> LP m () -> LP m Inlines quoted' f starter ender = do startchs <- (T.unpack . untokenize) <$> starter smart <- extensionEnabled Ext_smart <$> getOption readerExtensions if smart then do ils <- many (notFollowedBy ender >> inline) (ender >> return (f (mconcat ils))) <|> (<> mconcat ils) <$> lit (case startchs of "``" -> "“" "`" -> "‘" cs -> cs) else lit startchs enquote :: PandocMonad m => LP m Inlines enquote = do skipopts quoteContext <- sQuoteContext <$> getState if quoteContext == InDoubleQuote then singleQuoted <$> withQuoteContext InSingleQuote tok else doubleQuoted <$> withQuoteContext InDoubleQuote tok doAcronym :: PandocMonad m => String -> LP m Inlines doAcronym form = do acro <- braced return . mconcat $ [spanWith ("",[],[("acronym-label", toksToString acro), ("acronym-form", "singular+" ++ form)]) $ str $ toksToString acro] doAcronymPlural :: PandocMonad m => String -> LP m Inlines doAcronymPlural form = do acro <- braced plural <- lit "s" return . mconcat $ [spanWith ("",[],[("acronym-label", toksToString acro), ("acronym-form", "plural+" ++ form)]) $ mconcat [str $ toksToString acro, plural]] doverb :: PandocMonad m => LP m Inlines doverb = do Tok _ Symbol t <- anySymbol marker <- case T.uncons t of Just (c, ts) | T.null ts -> return c _ -> mzero withVerbatimMode $ (code . T.unpack . untokenize) <$> manyTill (verbTok marker) (symbol marker) verbTok :: PandocMonad m => Char -> LP m Tok verbTok stopchar = do t@(Tok pos toktype txt) <- satisfyTok (not . isNewlineTok) case T.findIndex (== stopchar) txt of Nothing -> return t Just i -> do let (t1, t2) = T.splitAt i txt inp <- getInput setInput $ Tok (incSourceColumn pos i) Symbol (T.singleton stopchar) : totoks (incSourceColumn pos (i + 1)) (T.drop 1 t2) ++ inp return $ Tok pos toktype t1 dolstinline :: PandocMonad m => LP m Inlines dolstinline = do options <- option [] keyvals let classes = maybeToList $ lookup "language" options >>= fromListingsLanguage Tok _ Symbol t <- anySymbol marker <- case T.uncons t of Just (c, ts) | T.null ts -> return c _ -> mzero let stopchar = if marker == '{' then '}' else marker withVerbatimMode $ (codeWith ("",classes,[]) . T.unpack . untokenize) <$> manyTill (verbTok stopchar) (symbol stopchar) keyval :: PandocMonad m => LP m (String, String) keyval = try $ do Tok _ Word key <- satisfyTok isWordTok let isSpecSym (Tok _ Symbol t) = t /= "]" && t /= "," isSpecSym _ = False optional sp val <- option [] $ do symbol '=' optional sp braced <|> many1 (satisfyTok isWordTok <|> satisfyTok isSpecSym <|> anyControlSeq) optional sp optional (symbol ',') optional sp return (T.unpack key, T.unpack . untokenize $ val) keyvals :: PandocMonad m => LP m [(String, String)] keyvals = try $ symbol '[' >> manyTill keyval (symbol ']') accent :: PandocMonad m => Char -> (Char -> String) -> LP m Inlines accent c f = try $ do ils <- tok case toList ils of (Str (x:xs) : ys) -> return $ fromList (Str (f x ++ xs) : ys) [Space] -> return $ str [c] [] -> return $ str [c] _ -> return ils grave :: Char -> String grave 'A' = "À" grave 'E' = "È" grave 'I' = "Ì" grave 'O' = "Ò" grave 'U' = "Ù" grave 'a' = "à" grave 'e' = "è" grave 'i' = "ì" grave 'o' = "ò" grave 'u' = "ù" grave c = [c] acute :: Char -> String acute 'A' = "Á" acute 'E' = "É" acute 'I' = "Í" acute 'O' = "Ó" acute 'U' = "Ú" acute 'Y' = "Ý" acute 'a' = "á" acute 'e' = "é" acute 'i' = "í" acute 'o' = "ó" acute 'u' = "ú" acute 'y' = "ý" acute 'C' = "Ć" acute 'c' = "ć" acute 'L' = "Ĺ" acute 'l' = "ĺ" acute 'N' = "Ń" acute 'n' = "ń" acute 'R' = "Ŕ" acute 'r' = "ŕ" acute 'S' = "Ś" acute 's' = "ś" acute 'Z' = "Ź" acute 'z' = "ź" acute c = [c] circ :: Char -> String circ 'A' = "Â" circ 'E' = "Ê" circ 'I' = "Î" circ 'O' = "Ô" circ 'U' = "Û" circ 'a' = "â" circ 'e' = "ê" circ 'i' = "î" circ 'o' = "ô" circ 'u' = "û" circ 'C' = "Ĉ" circ 'c' = "ĉ" circ 'G' = "Ĝ" circ 'g' = "ĝ" circ 'H' = "Ĥ" circ 'h' = "ĥ" circ 'J' = "Ĵ" circ 'j' = "ĵ" circ 'S' = "Ŝ" circ 's' = "ŝ" circ 'W' = "Ŵ" circ 'w' = "ŵ" circ 'Y' = "Ŷ" circ 'y' = "ŷ" circ c = [c] tilde :: Char -> String tilde 'A' = "Ã" tilde 'a' = "ã" tilde 'O' = "Õ" tilde 'o' = "õ" tilde 'I' = "Ĩ" tilde 'i' = "ĩ" tilde 'U' = "Ũ" tilde 'u' = "ũ" tilde 'N' = "Ñ" tilde 'n' = "ñ" tilde c = [c] umlaut :: Char -> String umlaut 'A' = "Ä" umlaut 'E' = "Ë" umlaut 'I' = "Ï" umlaut 'O' = "Ö" umlaut 'U' = "Ü" umlaut 'a' = "ä" umlaut 'e' = "ë" umlaut 'i' = "ï" umlaut 'o' = "ö" umlaut 'u' = "ü" umlaut c = [c] hungarumlaut :: Char -> String hungarumlaut 'A' = "A̋" hungarumlaut 'E' = "E̋" hungarumlaut 'I' = "I̋" hungarumlaut 'O' = "Ő" hungarumlaut 'U' = "Ű" hungarumlaut 'Y' = "ӳ" hungarumlaut 'a' = "a̋" hungarumlaut 'e' = "e̋" hungarumlaut 'i' = "i̋" hungarumlaut 'o' = "ő" hungarumlaut 'u' = "ű" hungarumlaut 'y' = "ӳ" hungarumlaut c = [c] dot :: Char -> String dot 'C' = "Ċ" dot 'c' = "ċ" dot 'E' = "Ė" dot 'e' = "ė" dot 'G' = "Ġ" dot 'g' = "ġ" dot 'I' = "İ" dot 'Z' = "Ż" dot 'z' = "ż" dot c = [c] macron :: Char -> String macron 'A' = "Ā" macron 'E' = "Ē" macron 'I' = "Ī" macron 'O' = "Ō" macron 'U' = "Ū" macron 'a' = "ā" macron 'e' = "ē" macron 'i' = "ī" macron 'o' = "ō" macron 'u' = "ū" macron c = [c] cedilla :: Char -> String cedilla 'c' = "ç" cedilla 'C' = "Ç" cedilla 's' = "ş" cedilla 'S' = "Ş" cedilla 't' = "ţ" cedilla 'T' = "Ţ" cedilla 'e' = "ȩ" cedilla 'E' = "Ȩ" cedilla 'h' = "ḩ" cedilla 'H' = "Ḩ" cedilla 'o' = "o̧" cedilla 'O' = "O̧" cedilla c = [c] hacek :: Char -> String hacek 'A' = "Ǎ" hacek 'a' = "ǎ" hacek 'C' = "Č" hacek 'c' = "č" hacek 'D' = "Ď" hacek 'd' = "ď" hacek 'E' = "Ě" hacek 'e' = "ě" hacek 'G' = "Ǧ" hacek 'g' = "ǧ" hacek 'H' = "Ȟ" hacek 'h' = "ȟ" hacek 'I' = "Ǐ" hacek 'i' = "ǐ" hacek 'j' = "ǰ" hacek 'K' = "Ǩ" hacek 'k' = "ǩ" hacek 'L' = "Ľ" hacek 'l' = "ľ" hacek 'N' = "Ň" hacek 'n' = "ň" hacek 'O' = "Ǒ" hacek 'o' = "ǒ" hacek 'R' = "Ř" hacek 'r' = "ř" hacek 'S' = "Š" hacek 's' = "š" hacek 'T' = "Ť" hacek 't' = "ť" hacek 'U' = "Ǔ" hacek 'u' = "ǔ" hacek 'Z' = "Ž" hacek 'z' = "ž" hacek c = [c] ogonek :: Char -> String ogonek 'a' = "ą" ogonek 'e' = "ę" ogonek 'o' = "ǫ" ogonek 'i' = "į" ogonek 'u' = "ų" ogonek 'A' = "Ą" ogonek 'E' = "Ę" ogonek 'I' = "Į" ogonek 'O' = "Ǫ" ogonek 'U' = "Ų" ogonek c = [c] breve :: Char -> String breve 'A' = "Ă" breve 'a' = "ă" breve 'E' = "Ĕ" breve 'e' = "ĕ" breve 'G' = "Ğ" breve 'g' = "ğ" breve 'I' = "Ĭ" breve 'i' = "ĭ" breve 'O' = "Ŏ" breve 'o' = "ŏ" breve 'U' = "Ŭ" breve 'u' = "ŭ" breve c = [c] toksToString :: [Tok] -> String toksToString = T.unpack . untokenize mathDisplay :: String -> Inlines mathDisplay = displayMath . trim mathInline :: String -> Inlines mathInline = math . trim dollarsMath :: PandocMonad m => LP m Inlines dollarsMath = do symbol '$' display <- option False (True <$ symbol '$') contents <- trim . toksToString <$> many (notFollowedBy (symbol '$') >> anyTok) if display then mathDisplay contents <$ try (symbol '$' >> symbol '$') <|> (guard (null contents) >> return (mathInline "")) else mathInline contents <$ symbol '$' -- citations addPrefix :: [Inline] -> [Citation] -> [Citation] addPrefix p (k:ks) = k {citationPrefix = p ++ citationPrefix k} : ks addPrefix _ _ = [] addSuffix :: [Inline] -> [Citation] -> [Citation] addSuffix s ks@(_:_) = let k = last ks in init ks ++ [k {citationSuffix = citationSuffix k ++ s}] addSuffix _ _ = [] simpleCiteArgs :: PandocMonad m => LP m [Citation] simpleCiteArgs = try $ do first <- optionMaybe $ toList <$> opt second <- optionMaybe $ toList <$> opt keys <- try $ bgroup *> manyTill citationLabel egroup let (pre, suf) = case (first , second ) of (Just s , Nothing) -> (mempty, s ) (Just s , Just t ) -> (s , t ) _ -> (mempty, mempty) conv k = Citation { citationId = k , citationPrefix = [] , citationSuffix = [] , citationMode = NormalCitation , citationHash = 0 , citationNoteNum = 0 } return $ addPrefix pre $ addSuffix suf $ map conv keys citationLabel :: PandocMonad m => LP m String citationLabel = do optional sp toksToString <$> (many1 (satisfyTok isWordTok <|> symbolIn bibtexKeyChar) <* optional sp <* optional (symbol ',') <* optional sp) where bibtexKeyChar = ".:;?!`'()/*@_+=-[]" :: [Char] cites :: PandocMonad m => CitationMode -> Bool -> LP m [Citation] cites mode multi = try $ do cits <- if multi then many1 simpleCiteArgs else count 1 simpleCiteArgs let cs = concat cits return $ case mode of AuthorInText -> case cs of (c:rest) -> c {citationMode = mode} : rest [] -> [] _ -> map (\a -> a {citationMode = mode}) cs citation :: PandocMonad m => String -> CitationMode -> Bool -> LP m Inlines citation name mode multi = do (c,raw) <- withRaw $ cites mode multi return $ cite c (rawInline "latex" $ "\\" ++ name ++ toksToString raw) handleCitationPart :: Inlines -> [Citation] handleCitationPart ils = let isCite Cite{} = True isCite _ = False (pref, rest) = break isCite (toList ils) in case rest of (Cite cs _:suff) -> addPrefix pref $ addSuffix suff cs _ -> [] complexNatbibCitation :: PandocMonad m => CitationMode -> LP m Inlines complexNatbibCitation mode = try $ do (cs, raw) <- withRaw $ concat <$> do bgroup items <- mconcat <$> many1 (notFollowedBy (symbol ';') >> inline) `sepBy1` (symbol ';') egroup return $ map handleCitationPart items case cs of [] -> mzero (c:cits) -> return $ cite (c{ citationMode = mode }:cits) (rawInline "latex" $ "\\citetext" ++ toksToString raw) inNote :: Inlines -> Inlines inNote ils = note $ para $ ils <> str "." inlineCommand' :: PandocMonad m => LP m Inlines inlineCommand' = try $ do Tok _ (CtrlSeq name) cmd <- anyControlSeq guard $ name /= "begin" && name /= "end" star <- option "" ("*" <$ symbol '*' <* optional sp) let name' = name <> star let names = ordNub [name', name] -- check non-starred as fallback let raw = do guard $ isInlineCommand name || not (isBlockCommand name) rawcommand <- getRawCommand name (cmd <> star) (guardEnabled Ext_raw_tex >> return (rawInline "latex" rawcommand)) <|> ignore rawcommand lookupListDefault raw names inlineCommands tok :: PandocMonad m => LP m Inlines tok = try $ spaces >> grouped inline <|> inlineCommand' <|> singleChar' where singleChar' = do Tok _ _ t <- singleChar return (str (T.unpack t)) singleChar :: PandocMonad m => LP m Tok singleChar = try $ do Tok pos toktype t <- satisfyTok (tokTypeIn [Word, Symbol]) guard $ not $ toktype == Symbol && T.any (`Set.member` specialChars) t if T.length t > 1 then do let (t1, t2) = (T.take 1 t, T.drop 1 t) inp <- getInput setInput $ Tok (incSourceColumn pos 1) toktype t2 : inp return $ Tok pos toktype t1 else return $ Tok pos toktype t opt :: PandocMonad m => LP m Inlines opt = bracketed inline rawopt :: PandocMonad m => LP m Text rawopt = do inner <- untokenize <$> bracketedToks optional sp return $ "[" <> inner <> "]" skipopts :: PandocMonad m => LP m () skipopts = skipMany rawopt -- opts in angle brackets are used in beamer rawangle :: PandocMonad m => LP m () rawangle = try $ do symbol '<' () <$ manyTill anyTok (symbol '>') skipangles :: PandocMonad m => LP m () skipangles = skipMany rawangle ignore :: (Monoid a, PandocMonad m) => String -> ParserT s u m a ignore raw = do pos <- getPosition report $ SkippedContent raw pos return mempty withRaw :: PandocMonad m => LP m a -> LP m (a, [Tok]) withRaw parser = do inp <- getInput result <- parser nxt <- option (Tok (initialPos "source") Word "") (lookAhead anyTok) let raw = takeWhile (/= nxt) inp return (result, raw) inBrackets :: Inlines -> Inlines inBrackets x = str "[" <> x <> str "]" unescapeURL :: String -> String unescapeURL ('\\':x:xs) | isEscapable x = x:unescapeURL xs where isEscapable c = c `elem` ("#$%&~_^\\{}" :: String) unescapeURL (x:xs) = x:unescapeURL xs unescapeURL [] = "" mathEnvWith :: PandocMonad m => (Inlines -> a) -> Maybe Text -> Text -> LP m a mathEnvWith f innerEnv name = f . mathDisplay . inner <$> mathEnv name where inner x = case innerEnv of Nothing -> x Just y -> "\\begin{" ++ T.unpack y ++ "}\n" ++ x ++ "\\end{" ++ T.unpack y ++ "}" mathEnv :: PandocMonad m => Text -> LP m String mathEnv name = do skipopts optional blankline res <- manyTill anyTok (end_ name) return $ stripTrailingNewlines $ T.unpack $ untokenize res inlineEnvironment :: PandocMonad m => LP m Inlines inlineEnvironment = try $ do controlSeq "begin" name <- untokenize <$> braced M.findWithDefault mzero name inlineEnvironments inlineEnvironments :: PandocMonad m => M.Map Text (LP m Inlines) inlineEnvironments = M.fromList [ ("displaymath", mathEnvWith id Nothing "displaymath") , ("math", math <$> mathEnv "math") , ("equation", mathEnvWith id Nothing "equation") , ("equation*", mathEnvWith id Nothing "equation*") , ("gather", mathEnvWith id (Just "gathered") "gather") , ("gather*", mathEnvWith id (Just "gathered") "gather*") , ("multline", mathEnvWith id (Just "gathered") "multline") , ("multline*", mathEnvWith id (Just "gathered") "multline*") , ("eqnarray", mathEnvWith id (Just "aligned") "eqnarray") , ("eqnarray*", mathEnvWith id (Just "aligned") "eqnarray*") , ("align", mathEnvWith id (Just "aligned") "align") , ("align*", mathEnvWith id (Just "aligned") "align*") , ("alignat", mathEnvWith id (Just "aligned") "alignat") , ("alignat*", mathEnvWith id (Just "aligned") "alignat*") ] inlineCommands :: PandocMonad m => M.Map Text (LP m Inlines) inlineCommands = M.union inlineLanguageCommands $ M.fromList $ [ ("emph", extractSpaces emph <$> tok) , ("textit", extractSpaces emph <$> tok) , ("textsl", extractSpaces emph <$> tok) , ("textsc", extractSpaces smallcaps <$> tok) , ("textsf", extractSpaces (spanWith ("",["sans-serif"],[])) <$> tok) , ("textmd", extractSpaces (spanWith ("",["medium"],[])) <$> tok) , ("textrm", extractSpaces (spanWith ("",["roman"],[])) <$> tok) , ("textup", extractSpaces (spanWith ("",["upright"],[])) <$> tok) , ("texttt", ttfamily) , ("sout", extractSpaces strikeout <$> tok) , ("alert", skipangles >> spanWith ("",["alert"],[]) <$> tok) -- beamer , ("lq", return (str "‘")) , ("rq", return (str "’")) , ("textquoteleft", return (str "‘")) , ("textquoteright", return (str "’")) , ("textquotedblleft", return (str "“")) , ("textquotedblright", return (str "”")) , ("textsuperscript", extractSpaces superscript <$> tok) , ("textsubscript", extractSpaces subscript <$> tok) , ("textbackslash", lit "\\") , ("backslash", lit "\\") , ("slash", lit "/") , ("textbf", extractSpaces strong <$> tok) , ("textnormal", extractSpaces (spanWith ("",["nodecor"],[])) <$> tok) , ("ldots", lit "…") , ("vdots", lit "\8942") , ("dots", lit "…") , ("mdots", lit "…") , ("sim", lit "~") , ("sep", lit ",") , ("label", rawInlineOr "label" dolabel) , ("ref", rawInlineOr "ref" $ doref "ref") , ("cref", rawInlineOr "cref" $ doref "ref") -- from cleveref.sty , ("vref", rawInlineOr "vref" $ doref "ref+page") -- from varioref.sty , ("eqref", rawInlineOr "eqref" $ doref "eqref") -- from amsmath.sty , ("lettrine", optional opt >> extractSpaces (spanWith ("",["lettrine"],[])) <$> tok) , ("(", mathInline . toksToString <$> manyTill anyTok (controlSeq ")")) , ("[", mathDisplay . toksToString <$> manyTill anyTok (controlSeq "]")) , ("ensuremath", mathInline . toksToString <$> braced) , ("texorpdfstring", (\_ x -> x) <$> tok <*> tok) , ("P", lit "¶") , ("S", lit "§") , ("$", lit "$") , ("%", lit "%") , ("&", lit "&") , ("#", lit "#") , ("_", lit "_") , ("{", lit "{") , ("}", lit "}") -- old TeX commands , ("em", extractSpaces emph <$> inlines) , ("it", extractSpaces emph <$> inlines) , ("sl", extractSpaces emph <$> inlines) , ("bf", extractSpaces strong <$> inlines) , ("rm", inlines) , ("itshape", extractSpaces emph <$> inlines) , ("slshape", extractSpaces emph <$> inlines) , ("scshape", extractSpaces smallcaps <$> inlines) , ("bfseries", extractSpaces strong <$> inlines) , ("/", pure mempty) -- italic correction , ("aa", lit "å") , ("AA", lit "Å") , ("ss", lit "ß") , ("o", lit "ø") , ("O", lit "Ø") , ("L", lit "Ł") , ("l", lit "ł") , ("ae", lit "æ") , ("AE", lit "Æ") , ("oe", lit "œ") , ("OE", lit "Œ") , ("pounds", lit "£") , ("euro", lit "€") , ("copyright", lit "©") , ("textasciicircum", lit "^") , ("textasciitilde", lit "~") , ("H", accent '\779' hungarumlaut) , ("`", accent '`' grave) , ("'", accent '\'' acute) , ("^", accent '^' circ) , ("~", accent '~' tilde) , ("\"", accent '\776' umlaut) , (".", accent '\775' dot) , ("=", accent '\772' macron) , ("c", accent '\807' cedilla) , ("v", accent 'ˇ' hacek) , ("u", accent '\774' breve) , ("k", accent '\808' ogonek) , ("textogonekcentered", accent '\808' ogonek) , ("i", lit "i") , ("\\", linebreak <$ (do inTableCell <- sInTableCell <$> getState guard $ not inTableCell optional opt spaces)) , (",", lit "\8198") , ("@", pure mempty) , (" ", lit "\160") , ("ps", pure $ str "PS." <> space) , ("TeX", lit "TeX") , ("LaTeX", lit "LaTeX") , ("bar", lit "|") , ("textless", lit "<") , ("textgreater", lit ">") , ("thanks", skipopts >> note <$> grouped block) , ("footnote", skipopts >> note <$> grouped block) , ("verb", doverb) , ("lstinline", dolstinline) , ("Verb", doverb) , ("url", ((unescapeURL . T.unpack . untokenize) <$> braced) >>= \url -> pure (link url "" (str url))) , ("href", (unescapeURL . toksToString <$> braced <* optional sp) >>= \url -> tok >>= \lab -> pure (link url "" lab)) , ("includegraphics", do options <- option [] keyvals src <- unescapeURL . T.unpack . removeDoubleQuotes . untokenize <$> braced mkImage options src) , ("enquote", enquote) , ("figurename", doTerm Translations.Figure) , ("prefacename", doTerm Translations.Preface) , ("refname", doTerm Translations.References) , ("bibname", doTerm Translations.Bibliography) , ("chaptername", doTerm Translations.Chapter) , ("partname", doTerm Translations.Part) , ("contentsname", doTerm Translations.Contents) , ("listfigurename", doTerm Translations.ListOfFigures) , ("listtablename", doTerm Translations.ListOfTables) , ("indexname", doTerm Translations.Index) , ("abstractname", doTerm Translations.Abstract) , ("tablename", doTerm Translations.Table) , ("enclname", doTerm Translations.Encl) , ("ccname", doTerm Translations.Cc) , ("headtoname", doTerm Translations.To) , ("pagename", doTerm Translations.Page) , ("seename", doTerm Translations.See) , ("seealsoname", doTerm Translations.SeeAlso) , ("proofname", doTerm Translations.Proof) , ("glossaryname", doTerm Translations.Glossary) , ("lstlistingname", doTerm Translations.Listing) , ("cite", citation "cite" NormalCitation False) , ("Cite", citation "Cite" NormalCitation False) , ("citep", citation "citep" NormalCitation False) , ("citep*", citation "citep*" NormalCitation False) , ("citeal", citation "citeal" NormalCitation False) , ("citealp", citation "citealp" NormalCitation False) , ("citealp*", citation "citealp*" NormalCitation False) , ("autocite", citation "autocite" NormalCitation False) , ("smartcite", citation "smartcite" NormalCitation False) , ("footcite", inNote <$> citation "footcite" NormalCitation False) , ("parencite", citation "parencite" NormalCitation False) , ("supercite", citation "supercite" NormalCitation False) , ("footcitetext", inNote <$> citation "footcitetext" NormalCitation False) , ("citeyearpar", citation "citeyearpar" SuppressAuthor False) , ("citeyear", citation "citeyear" SuppressAuthor False) , ("autocite*", citation "autocite*" SuppressAuthor False) , ("cite*", citation "cite*" SuppressAuthor False) , ("parencite*", citation "parencite*" SuppressAuthor False) , ("textcite", citation "textcite" AuthorInText False) , ("citet", citation "citet" AuthorInText False) , ("citet*", citation "citet*" AuthorInText False) , ("citealt", citation "citealt" AuthorInText False) , ("citealt*", citation "citealt*" AuthorInText False) , ("textcites", citation "textcites" AuthorInText True) , ("cites", citation "cites" NormalCitation True) , ("autocites", citation "autocites" NormalCitation True) , ("footcites", inNote <$> citation "footcites" NormalCitation True) , ("parencites", citation "parencites" NormalCitation True) , ("supercites", citation "supercites" NormalCitation True) , ("footcitetexts", inNote <$> citation "footcitetexts" NormalCitation True) , ("Autocite", citation "Autocite" NormalCitation False) , ("Smartcite", citation "Smartcite" NormalCitation False) , ("Footcite", citation "Footcite" NormalCitation False) , ("Parencite", citation "Parencite" NormalCitation False) , ("Supercite", citation "Supercite" NormalCitation False) , ("Footcitetext", inNote <$> citation "Footcitetext" NormalCitation False) , ("Citeyearpar", citation "Citeyearpar" SuppressAuthor False) , ("Citeyear", citation "Citeyear" SuppressAuthor False) , ("Autocite*", citation "Autocite*" SuppressAuthor False) , ("Cite*", citation "Cite*" SuppressAuthor False) , ("Parencite*", citation "Parencite*" SuppressAuthor False) , ("Textcite", citation "Textcite" AuthorInText False) , ("Textcites", citation "Textcites" AuthorInText True) , ("Cites", citation "Cites" NormalCitation True) , ("Autocites", citation "Autocites" NormalCitation True) , ("Footcites", citation "Footcites" NormalCitation True) , ("Parencites", citation "Parencites" NormalCitation True) , ("Supercites", citation "Supercites" NormalCitation True) , ("Footcitetexts", inNote <$> citation "Footcitetexts" NormalCitation True) , ("citetext", complexNatbibCitation NormalCitation) , ("citeauthor", (try (tok *> optional sp *> controlSeq "citetext") *> complexNatbibCitation AuthorInText) <|> citation "citeauthor" AuthorInText False) , ("nocite", mempty <$ (citation "nocite" NormalCitation False >>= addMeta "nocite")) , ("hyperlink", hyperlink) , ("hypertarget", hypertargetInline) -- glossaries package , ("gls", doAcronym "short") , ("Gls", doAcronym "short") , ("glsdesc", doAcronym "long") , ("Glsdesc", doAcronym "long") , ("GLSdesc", doAcronym "long") , ("acrlong", doAcronym "long") , ("Acrlong", doAcronym "long") , ("acrfull", doAcronym "full") , ("Acrfull", doAcronym "full") , ("acrshort", doAcronym "abbrv") , ("Acrshort", doAcronym "abbrv") , ("glspl", doAcronymPlural "short") , ("Glspl", doAcronymPlural "short") , ("glsdescplural", doAcronymPlural "long") , ("Glsdescplural", doAcronymPlural "long") , ("GLSdescplural", doAcronymPlural "long") -- acronyms package , ("ac", doAcronym "short") , ("acf", doAcronym "full") , ("acs", doAcronym "abbrv") , ("acp", doAcronymPlural "short") , ("acfp", doAcronymPlural "full") , ("acsp", doAcronymPlural "abbrv") -- siuntix , ("SI", dosiunitx) -- hyphenat , ("bshyp", lit "\\\173") , ("fshyp", lit "/\173") , ("dothyp", lit ".\173") , ("colonhyp", lit ":\173") , ("hyp", lit "-") , ("nohyphens", tok) , ("textnhtt", ttfamily) , ("nhttfamily", ttfamily) -- LaTeX colors , ("textcolor", coloredInline "color") , ("colorbox", coloredInline "background-color") -- fontawesome , ("faCheck", lit "\10003") , ("faClose", lit "\10007") -- xspace , ("xspace", doxspace) -- etoolbox , ("ifstrequal", ifstrequal) , ("newtoggle", braced >>= newToggle) , ("toggletrue", braced >>= setToggle True) , ("togglefalse", braced >>= setToggle False) , ("iftoggle", try $ ifToggle >> inline) -- biblatex misc , ("RN", romanNumeralUpper) , ("Rn", romanNumeralLower) ] inlineLanguageCommands :: PandocMonad m => M.Map Text (LP m Inlines) inlineLanguageCommands = M.fromList $ mk <$> M.toList polyglossiaLangToBCP47 where mk (polyglossia, bcp47Func) = ("text" <> T.pack polyglossia, inlineLanguage bcp47Func) inlineLanguage :: PandocMonad m => (String -> Lang) -> LP m Inlines inlineLanguage bcp47Func = do o <- option "" $ (T.unpack . T.filter (\c -> c /= '[' && c /= ']')) <$> rawopt let lang = renderLang $ bcp47Func o extractSpaces (spanWith ("", [], [("lang", lang)])) <$> tok hyperlink :: PandocMonad m => LP m Inlines hyperlink = try $ do src <- toksToString <$> braced lab <- tok return $ link ('#':src) "" lab hypertargetBlock :: PandocMonad m => LP m Blocks hypertargetBlock = try $ do ref <- toksToString <$> braced bs <- grouped block case toList bs of [Header 1 (ident,_,_) _] | ident == ref -> return bs _ -> return $ divWith (ref, [], []) bs hypertargetInline :: PandocMonad m => LP m Inlines hypertargetInline = try $ do ref <- toksToString <$> braced ils <- grouped inline return $ spanWith (ref, [], []) ils romanNumeralUpper :: (PandocMonad m) => LP m Inlines romanNumeralUpper = str . toRomanNumeral <$> romanNumeralArg romanNumeralLower :: (PandocMonad m) => LP m Inlines romanNumeralLower = str . map toLower . toRomanNumeral <$> romanNumeralArg romanNumeralArg :: (PandocMonad m) => LP m Int romanNumeralArg = spaces *> (parser <|> inBraces) where inBraces = do symbol '{' spaces res <- parser spaces symbol '}' return res parser = do Tok _ Word s <- satisfyTok isWordTok let (digits, rest) = T.span isDigit s unless (T.null rest) $ fail "Non-digits in argument to \\Rn or \\RN" safeRead $ T.unpack digits newToggle :: (Monoid a, PandocMonad m) => [Tok] -> LP m a newToggle name = do updateState $ \st -> st{ sToggles = M.insert (toksToString name) False (sToggles st) } return mempty setToggle :: (Monoid a, PandocMonad m) => Bool -> [Tok] -> LP m a setToggle on name = do updateState $ \st -> st{ sToggles = M.adjust (const on) (toksToString name) (sToggles st) } return mempty ifToggle :: PandocMonad m => LP m () ifToggle = do name <- braced spaces yes <- braced spaces no <- braced toggles <- sToggles <$> getState inp <- getInput let name' = toksToString name case M.lookup name' toggles of Just True -> setInput (yes ++ inp) Just False -> setInput (no ++ inp) Nothing -> do pos <- getPosition report $ UndefinedToggle name' pos return () doTerm :: PandocMonad m => Translations.Term -> LP m Inlines doTerm term = str <$> translateTerm term ifstrequal :: (PandocMonad m, Monoid a) => LP m a ifstrequal = do str1 <- tok str2 <- tok ifequal <- braced ifnotequal <- braced if str1 == str2 then getInput >>= setInput . (ifequal ++) else getInput >>= setInput . (ifnotequal ++) return mempty coloredInline :: PandocMonad m => String -> LP m Inlines coloredInline stylename = do skipopts color <- braced spanWith ("",[],[("style",stylename ++ ": " ++ toksToString color)]) <$> tok ttfamily :: PandocMonad m => LP m Inlines ttfamily = (code . stringify . toList) <$> tok rawInlineOr :: PandocMonad m => Text -> LP m Inlines -> LP m Inlines rawInlineOr name' fallback = do parseRaw <- extensionEnabled Ext_raw_tex <$> getOption readerExtensions if parseRaw then rawInline "latex" <$> getRawCommand name' ("\\" <> name') else fallback getRawCommand :: PandocMonad m => Text -> Text -> LP m String getRawCommand name txt = do (_, rawargs) <- withRaw $ case name of "write" -> do void $ satisfyTok isWordTok -- digits void braced "titleformat" -> do void braced skipopts void $ count 4 braced "def" -> void $ manyTill anyTok braced _ -> do skipangles skipopts option "" (try (optional sp *> dimenarg)) void $ many braced return $ T.unpack (txt <> untokenize rawargs) isBlockCommand :: Text -> Bool isBlockCommand s = s `M.member` (blockCommands :: M.Map Text (LP PandocPure Blocks)) || s `Set.member` treatAsBlock treatAsBlock :: Set.Set Text treatAsBlock = Set.fromList [ "let", "def", "DeclareRobustCommand" , "newcommand", "renewcommand" , "newenvironment", "renewenvironment" , "providecommand", "provideenvironment" -- newcommand, etc. should be parsed by macroDef, but we need this -- here so these aren't parsed as inline commands to ignore , "special", "pdfannot", "pdfstringdef" , "bibliographystyle" , "maketitle", "makeindex", "makeglossary" , "addcontentsline", "addtocontents", "addtocounter" -- \ignore{} is used conventionally in literate haskell for definitions -- that are to be processed by the compiler but not printed. , "ignore" , "hyperdef" , "markboth", "markright", "markleft" , "hspace", "vspace" , "newpage" , "clearpage" , "pagebreak" , "titleformat" ] isInlineCommand :: Text -> Bool isInlineCommand s = s `M.member` (inlineCommands :: M.Map Text (LP PandocPure Inlines)) || s `Set.member` treatAsInline treatAsInline :: Set.Set Text treatAsInline = Set.fromList [ "index" , "hspace" , "vspace" , "noindent" , "newpage" , "clearpage" , "pagebreak" ] dolabel :: PandocMonad m => LP m Inlines dolabel = do v <- braced let refstr = toksToString v return $ spanWith (refstr,[],[("label", refstr)]) $ inBrackets $ str $ toksToString v doref :: PandocMonad m => String -> LP m Inlines doref cls = do v <- braced let refstr = toksToString v return $ linkWith ("",[],[ ("reference-type", cls) , ("reference", refstr)]) ('#':refstr) "" (inBrackets $ str refstr) lookupListDefault :: (Show k, Ord k) => v -> [k] -> M.Map k v -> v lookupListDefault d = (fromMaybe d .) . lookupList where lookupList l m = msum $ map (`M.lookup` m) l inline :: PandocMonad m => LP m Inlines inline = (mempty <$ comment) <|> (space <$ whitespace) <|> (softbreak <$ endline) <|> word <|> inlineCommand' <|> inlineEnvironment <|> inlineGroup <|> (symbol '-' *> option (str "-") (symbol '-' *> option (str "–") (str "—" <$ symbol '-'))) <|> doubleQuote <|> singleQuote <|> (str "”" <$ try (symbol '\'' >> symbol '\'')) <|> (str "”" <$ symbol '”') <|> (str "’" <$ symbol '\'') <|> (str "’" <$ symbol '’') <|> (str "\160" <$ symbol '~') <|> dollarsMath <|> (guardEnabled Ext_literate_haskell *> symbol '|' *> doLHSverb) <|> (str . (:[]) <$> primEscape) <|> regularSymbol <|> (do res <- symbolIn "#^'`\"[]" pos <- getPosition let s = T.unpack (untoken res) report $ ParsingUnescaped s pos return $ str s) inlines :: PandocMonad m => LP m Inlines inlines = mconcat <$> many inline -- block elements: begin_ :: PandocMonad m => Text -> LP m () begin_ t = try (do controlSeq "begin" spaces txt <- untokenize <$> braced guard (t == txt)) ("\\begin{" ++ T.unpack t ++ "}") end_ :: PandocMonad m => Text -> LP m () end_ t = try (do controlSeq "end" spaces txt <- untokenize <$> braced guard $ t == txt) ("\\end{" ++ T.unpack t ++ "}") preamble :: PandocMonad m => LP m Blocks preamble = mempty <$ many preambleBlock where preambleBlock = spaces1 <|> void include <|> void macroDef <|> void blockCommand <|> void braced <|> (notFollowedBy (begin_ "document") >> void anyTok) paragraph :: PandocMonad m => LP m Blocks paragraph = do x <- trimInlines . mconcat <$> many1 inline if x == mempty then return mempty else return $ para x include :: PandocMonad m => LP m Blocks include = do (Tok _ (CtrlSeq name) _) <- controlSeq "include" <|> controlSeq "input" <|> controlSeq "subfile" <|> controlSeq "usepackage" skipMany opt fs <- (map (T.unpack . removeDoubleQuotes . T.strip) . T.splitOn "," . untokenize) <$> braced let fs' = if name == "usepackage" then map (maybeAddExtension ".sty") fs else map (maybeAddExtension ".tex") fs dirs <- (splitBy (==':') . fromMaybe ".") <$> lookupEnv "TEXINPUTS" mapM_ (insertIncluded dirs) fs' return mempty insertIncluded :: PandocMonad m => [FilePath] -> FilePath -> LP m () insertIncluded dirs f = do pos <- getPosition containers <- getIncludeFiles <$> getState when (f `elem` containers) $ throwError $ PandocParseError $ "Include file loop at " ++ show pos updateState $ addIncludeFile f mbcontents <- readFileFromDirs dirs f contents <- case mbcontents of Just s -> return s Nothing -> do report $ CouldNotLoadIncludeFile f pos return "" getInput >>= setInput . (tokenize f (T.pack contents) ++) updateState dropLatestIncludeFile maybeAddExtension :: String -> FilePath -> FilePath maybeAddExtension ext fp = if null (takeExtension fp) then addExtension fp ext else fp addMeta :: PandocMonad m => ToMetaValue a => String -> a -> LP m () addMeta field val = updateState $ \st -> st{ sMeta = addMetaField field val $ sMeta st } authors :: PandocMonad m => LP m () authors = try $ do bgroup let oneAuthor = mconcat <$> many1 (notFollowedBy' (controlSeq "and") >> (inline <|> mempty <$ blockCommand)) -- skip e.g. \vspace{10pt} auths <- sepBy oneAuthor (controlSeq "and") egroup addMeta "author" (map trimInlines auths) macroDef :: PandocMonad m => LP m Blocks macroDef = mempty <$ ((commandDef <|> environmentDef) <* doMacros 0) where commandDef = do (name, macro') <- newcommand <|> letmacro <|> defmacro guardDisabled Ext_latex_macros <|> updateState (\s -> s{ sMacros = M.insert name macro' (sMacros s) }) environmentDef = do (name, macro1, macro2) <- newenvironment guardDisabled Ext_latex_macros <|> do updateState $ \s -> s{ sMacros = M.insert name macro1 (sMacros s) } updateState $ \s -> s{ sMacros = M.insert ("end" <> name) macro2 (sMacros s) } -- @\newenvironment{envname}[n-args][default]{begin}{end}@ -- is equivalent to -- @\newcommand{\envname}[n-args][default]{begin}@ -- @\newcommand{\endenvname}@ letmacro :: PandocMonad m => LP m (Text, Macro) letmacro = do controlSeq "let" Tok _ (CtrlSeq name) _ <- anyControlSeq optional $ symbol '=' spaces contents <- bracedOrToken return (name, Macro ExpandWhenDefined 0 Nothing contents) defmacro :: PandocMonad m => LP m (Text, Macro) defmacro = try $ do controlSeq "def" Tok _ (CtrlSeq name) _ <- anyControlSeq numargs <- option 0 $ argSeq 1 -- we use withVerbatimMode, because macros are to be expanded -- at point of use, not point of definition contents <- withVerbatimMode bracedOrToken return (name, Macro ExpandWhenUsed numargs Nothing contents) -- Note: we don't yet support fancy things like #1.#2 argSeq :: PandocMonad m => Int -> LP m Int argSeq n = do Tok _ (Arg i) _ <- satisfyTok isArgTok guard $ i == n argSeq (n+1) <|> return n isArgTok :: Tok -> Bool isArgTok (Tok _ (Arg _) _) = True isArgTok _ = False bracedOrToken :: PandocMonad m => LP m [Tok] bracedOrToken = braced <|> ((:[]) <$> (anyControlSeq <|> singleChar)) newcommand :: PandocMonad m => LP m (Text, Macro) newcommand = do pos <- getPosition Tok _ (CtrlSeq mtype) _ <- controlSeq "newcommand" <|> controlSeq "renewcommand" <|> controlSeq "providecommand" <|> controlSeq "DeclareRobustCommand" optional $ symbol '*' Tok _ (CtrlSeq name) txt <- withVerbatimMode $ anyControlSeq <|> (symbol '{' *> spaces *> anyControlSeq <* spaces <* symbol '}') spaces numargs <- option 0 $ try bracketedNum spaces optarg <- option Nothing $ Just <$> try bracketedToks spaces contents <- withVerbatimMode bracedOrToken when (mtype == "newcommand") $ do macros <- sMacros <$> getState case M.lookup name macros of Just _ -> report $ MacroAlreadyDefined (T.unpack txt) pos Nothing -> return () return (name, Macro ExpandWhenUsed numargs optarg contents) newenvironment :: PandocMonad m => LP m (Text, Macro, Macro) newenvironment = do pos <- getPosition Tok _ (CtrlSeq mtype) _ <- controlSeq "newenvironment" <|> controlSeq "renewenvironment" <|> controlSeq "provideenvironment" optional $ symbol '*' spaces name <- untokenize <$> braced spaces numargs <- option 0 $ try bracketedNum spaces optarg <- option Nothing $ Just <$> try bracketedToks spaces startcontents <- withVerbatimMode bracedOrToken spaces endcontents <- withVerbatimMode bracedOrToken when (mtype == "newenvironment") $ do macros <- sMacros <$> getState case M.lookup name macros of Just _ -> report $ MacroAlreadyDefined (T.unpack name) pos Nothing -> return () return (name, Macro ExpandWhenUsed numargs optarg startcontents, Macro ExpandWhenUsed 0 Nothing endcontents) bracketedToks :: PandocMonad m => LP m [Tok] bracketedToks = do symbol '[' mconcat <$> manyTill (braced <|> (:[]) <$> anyTok) (symbol ']') bracketedNum :: PandocMonad m => LP m Int bracketedNum = do ds <- untokenize <$> bracketedToks case safeRead (T.unpack ds) of Just i -> return i _ -> return 0 setCaption :: PandocMonad m => LP m Blocks setCaption = do ils <- tok mblabel <- option Nothing $ try $ spaces >> controlSeq "label" >> (Just <$> tok) let ils' = case mblabel of Just lab -> ils <> spanWith ("",[],[("label", stringify lab)]) mempty Nothing -> ils updateState $ \st -> st{ sCaption = Just ils' } return mempty looseItem :: PandocMonad m => LP m Blocks looseItem = do inListItem <- sInListItem <$> getState guard $ not inListItem skipopts return mempty resetCaption :: PandocMonad m => LP m () resetCaption = updateState $ \st -> st{ sCaption = Nothing } section :: PandocMonad m => Bool -> Attr -> Int -> LP m Blocks section starred (ident, classes, kvs) lvl = do skipopts contents <- grouped inline lab <- option ident $ try (spaces >> controlSeq "label" >> spaces >> toksToString <$> braced) let classes' = if starred then "unnumbered" : classes else classes unless starred $ do hn <- sLastHeaderNum <$> getState let num = incrementHeaderNum lvl hn updateState $ \st -> st{ sLastHeaderNum = num } updateState $ \st -> st{ sLabels = M.insert lab [Str (renderHeaderNum num)] (sLabels st) } attr' <- registerHeader (lab, classes', kvs) contents return $ headerWith attr' lvl contents blockCommand :: PandocMonad m => LP m Blocks blockCommand = try $ do Tok _ (CtrlSeq name) txt <- anyControlSeq guard $ name /= "begin" && name /= "end" star <- option "" ("*" <$ symbol '*' <* optional sp) let name' = name <> star let names = ordNub [name', name] let rawDefiniteBlock = do guard $ isBlockCommand name rawBlock "latex" <$> getRawCommand name (txt <> star) -- heuristic: if it could be either block or inline, we -- treat it if block if we have a sequence of block -- commands followed by a newline. But we stop if we -- hit a \startXXX, since this might start a raw ConTeXt -- environment (this is important because this parser is -- used by the Markdown reader). let startCommand = try $ do Tok _ (CtrlSeq n) _ <- anyControlSeq guard $ "start" `T.isPrefixOf` n let rawMaybeBlock = try $ do guard $ not $ isInlineCommand name curr <- rawBlock "latex" <$> getRawCommand name (txt <> star) rest <- many $ notFollowedBy startCommand *> blockCommand lookAhead $ blankline <|> startCommand return $ curr <> mconcat rest let raw = rawDefiniteBlock <|> rawMaybeBlock lookupListDefault raw names blockCommands closing :: PandocMonad m => LP m Blocks closing = do contents <- tok st <- getState let extractInlines (MetaBlocks [Plain ys]) = ys extractInlines (MetaBlocks [Para ys ]) = ys extractInlines _ = [] let sigs = case lookupMeta "author" (sMeta st) of Just (MetaList xs) -> para $ trimInlines $ fromList $ intercalate [LineBreak] $ map extractInlines xs _ -> mempty return $ para (trimInlines contents) <> sigs blockCommands :: PandocMonad m => M.Map Text (LP m Blocks) blockCommands = M.fromList $ [ ("par", mempty <$ skipopts) , ("parbox", skipopts >> braced >> grouped blocks) , ("title", mempty <$ (skipopts *> (grouped inline >>= addMeta "title") <|> (grouped block >>= addMeta "title"))) , ("subtitle", mempty <$ (skipopts *> tok >>= addMeta "subtitle")) , ("author", mempty <$ (skipopts *> authors)) -- -- in letter class, temp. store address & sig as title, author , ("address", mempty <$ (skipopts *> tok >>= addMeta "address")) , ("signature", mempty <$ (skipopts *> authors)) , ("date", mempty <$ (skipopts *> tok >>= addMeta "date")) -- Koma-script metadata commands , ("dedication", mempty <$ (skipopts *> tok >>= addMeta "dedication")) -- sectioning , ("part", section False nullAttr (-1)) , ("part*", section True nullAttr (-1)) , ("chapter", section False nullAttr 0) , ("chapter*", section True ("",["unnumbered"],[]) 0) , ("section", section False nullAttr 1) , ("section*", section True ("",["unnumbered"],[]) 1) , ("subsection", section False nullAttr 2) , ("subsection*", section True ("",["unnumbered"],[]) 2) , ("subsubsection", section False nullAttr 3) , ("subsubsection*", section True ("",["unnumbered"],[]) 3) , ("paragraph", section False nullAttr 4) , ("paragraph*", section True ("",["unnumbered"],[]) 4) , ("subparagraph", section False nullAttr 5) , ("subparagraph*", section True ("",["unnumbered"],[]) 5) -- beamer slides , ("frametitle", section False nullAttr 3) , ("framesubtitle", section False nullAttr 4) -- letters , ("opening", (para . trimInlines) <$> (skipopts *> tok)) , ("closing", skipopts *> closing) -- memoir , ("plainbreak", braced >> pure horizontalRule) , ("plainbreak*", braced >> pure horizontalRule) , ("fancybreak", braced >> pure horizontalRule) , ("fancybreak*", braced >> pure horizontalRule) , ("plainfancybreak", braced >> braced >> braced >> pure horizontalRule) , ("plainfancybreak*", braced >> braced >> braced >> pure horizontalRule) , ("pfbreak", pure horizontalRule) , ("pfbreak*", pure horizontalRule) -- , ("hrule", pure horizontalRule) , ("strut", pure mempty) , ("rule", skipopts *> tok *> tok *> pure horizontalRule) , ("item", looseItem) , ("documentclass", skipopts *> braced *> preamble) , ("centerline", (para . trimInlines) <$> (skipopts *> tok)) , ("caption", skipopts *> setCaption) , ("bibliography", mempty <$ (skipopts *> braced >>= addMeta "bibliography" . splitBibs . toksToString)) , ("addbibresource", mempty <$ (skipopts *> braced >>= addMeta "bibliography" . splitBibs . toksToString)) -- includes , ("lstinputlisting", inputListing) , ("graphicspath", graphicsPath) -- polyglossia , ("setdefaultlanguage", setDefaultLanguage) , ("setmainlanguage", setDefaultLanguage) -- hyperlink , ("hypertarget", hypertargetBlock) -- LaTeX colors , ("textcolor", coloredBlock "color") , ("colorbox", coloredBlock "background-color") ] environments :: PandocMonad m => M.Map Text (LP m Blocks) environments = M.fromList [ ("document", env "document" blocks) , ("abstract", mempty <$ (env "abstract" blocks >>= addMeta "abstract")) , ("letter", env "letter" letterContents) , ("minipage", env "minipage" $ skipopts *> spaces *> optional braced *> spaces *> blocks) , ("figure", env "figure" $ skipopts *> figure) , ("subfigure", env "subfigure" $ skipopts *> tok *> figure) , ("center", env "center" blocks) , ("longtable", env "longtable" $ resetCaption *> simpTable "longtable" False >>= addTableCaption) , ("table", env "table" $ resetCaption *> skipopts *> blocks >>= addTableCaption) , ("tabular*", env "tabular" $ simpTable "tabular*" True) , ("tabularx", env "tabularx" $ simpTable "tabularx" True) , ("tabular", env "tabular" $ simpTable "tabular" False) , ("quote", blockQuote <$> env "quote" blocks) , ("quotation", blockQuote <$> env "quotation" blocks) , ("verse", blockQuote <$> env "verse" blocks) , ("itemize", bulletList <$> listenv "itemize" (many item)) , ("description", definitionList <$> listenv "description" (many descItem)) , ("enumerate", orderedList') , ("alltt", alltt <$> env "alltt" blocks) , ("code", guardEnabled Ext_literate_haskell *> (codeBlockWith ("",["sourceCode","literate","haskell"],[]) <$> verbEnv "code")) , ("comment", mempty <$ verbEnv "comment") , ("verbatim", codeBlock <$> verbEnv "verbatim") , ("Verbatim", fancyverbEnv "Verbatim") , ("BVerbatim", fancyverbEnv "BVerbatim") , ("lstlisting", do attr <- parseListingsOptions <$> option [] keyvals codeBlockWith attr <$> verbEnv "lstlisting") , ("minted", minted) , ("obeylines", obeylines) , ("displaymath", mathEnvWith para Nothing "displaymath") , ("equation", mathEnvWith para Nothing "equation") , ("equation*", mathEnvWith para Nothing "equation*") , ("gather", mathEnvWith para (Just "gathered") "gather") , ("gather*", mathEnvWith para (Just "gathered") "gather*") , ("multline", mathEnvWith para (Just "gathered") "multline") , ("multline*", mathEnvWith para (Just "gathered") "multline*") , ("eqnarray", mathEnvWith para (Just "aligned") "eqnarray") , ("eqnarray*", mathEnvWith para (Just "aligned") "eqnarray*") , ("align", mathEnvWith para (Just "aligned") "align") , ("align*", mathEnvWith para (Just "aligned") "align*") , ("alignat", mathEnvWith para (Just "aligned") "alignat") , ("alignat*", mathEnvWith para (Just "aligned") "alignat*") , ("tikzpicture", rawVerbEnv "tikzpicture") -- etoolbox , ("ifstrequal", ifstrequal) , ("newtoggle", braced >>= newToggle) , ("toggletrue", braced >>= setToggle True) , ("togglefalse", braced >>= setToggle False) , ("iftoggle", try $ ifToggle >> block) ] environment :: PandocMonad m => LP m Blocks environment = do controlSeq "begin" name <- untokenize <$> braced M.findWithDefault mzero name environments <|> rawEnv name env :: PandocMonad m => Text -> LP m a -> LP m a env name p = p <* end_ name rawEnv :: PandocMonad m => Text -> LP m Blocks rawEnv name = do exts <- getOption readerExtensions let parseRaw = extensionEnabled Ext_raw_tex exts rawOptions <- mconcat <$> many rawopt let beginCommand = "\\begin{" <> name <> "}" <> rawOptions pos1 <- getPosition (bs, raw) <- withRaw $ env name blocks if parseRaw then return $ rawBlock "latex" $ T.unpack $ beginCommand <> untokenize raw else do report $ SkippedContent (T.unpack beginCommand) pos1 pos2 <- getPosition report $ SkippedContent ("\\end{" ++ T.unpack name ++ "}") pos2 return bs rawVerbEnv :: PandocMonad m => Text -> LP m Blocks rawVerbEnv name = do pos <- getPosition (_, raw) <- withRaw $ verbEnv name let raw' = "\\begin{tikzpicture}" ++ toksToString raw exts <- getOption readerExtensions let parseRaw = extensionEnabled Ext_raw_tex exts if parseRaw then return $ rawBlock "latex" raw' else do report $ SkippedContent raw' pos return mempty verbEnv :: PandocMonad m => Text -> LP m String verbEnv name = withVerbatimMode $ do skipopts optional blankline res <- manyTill anyTok (end_ name) return $ stripTrailingNewlines $ toksToString res fancyverbEnv :: PandocMonad m => Text -> LP m Blocks fancyverbEnv name = do options <- option [] keyvals let kvs = [ (if k == "firstnumber" then "startFrom" else k, v) | (k,v) <- options ] let classes = [ "numberLines" | lookup "numbers" options == Just "left" ] let attr = ("",classes,kvs) codeBlockWith attr <$> verbEnv name obeylines :: PandocMonad m => LP m Blocks obeylines = para . fromList . removeLeadingTrailingBreaks . walk softBreakToHard . toList <$> env "obeylines" inlines where softBreakToHard SoftBreak = LineBreak softBreakToHard x = x removeLeadingTrailingBreaks = reverse . dropWhile isLineBreak . reverse . dropWhile isLineBreak isLineBreak LineBreak = True isLineBreak _ = False minted :: PandocMonad m => LP m Blocks minted = do options <- option [] keyvals lang <- toksToString <$> braced let kvs = [ (if k == "firstnumber" then "startFrom" else k, v) | (k,v) <- options ] let classes = [ lang | not (null lang) ] ++ [ "numberLines" | lookup "linenos" options == Just "true" ] let attr = ("",classes,kvs) codeBlockWith attr <$> verbEnv "minted" letterContents :: PandocMonad m => LP m Blocks letterContents = do bs <- blocks st <- getState -- add signature (author) and address (title) let addr = case lookupMeta "address" (sMeta st) of Just (MetaBlocks [Plain xs]) -> para $ trimInlines $ fromList xs _ -> mempty return $ addr <> bs -- sig added by \closing figure :: PandocMonad m => LP m Blocks figure = try $ do resetCaption blocks >>= addImageCaption addImageCaption :: PandocMonad m => Blocks -> LP m Blocks addImageCaption = walkM go where go (Image attr alt (src,tit)) | not ("fig:" `isPrefixOf` tit) = do mbcapt <- sCaption <$> getState return $ case mbcapt of Just ils -> Image attr (toList ils) (src, "fig:" ++ tit) Nothing -> Image attr alt (src,tit) go x = return x coloredBlock :: PandocMonad m => String -> LP m Blocks coloredBlock stylename = try $ do skipopts color <- braced notFollowedBy (grouped inline) let constructor = divWith ("",[],[("style",stylename ++ ": " ++ toksToString color)]) constructor <$> grouped block graphicsPath :: PandocMonad m => LP m Blocks graphicsPath = do ps <- map toksToString <$> (bgroup *> manyTill braced egroup) getResourcePath >>= setResourcePath . (++ ps) return mempty splitBibs :: String -> [Inlines] splitBibs = map (str . flip replaceExtension "bib" . trim) . splitBy (==',') alltt :: Blocks -> Blocks alltt = walk strToCode where strToCode (Str s) = Code nullAttr s strToCode Space = RawInline (Format "latex") "\\ " strToCode SoftBreak = LineBreak strToCode x = x parseListingsOptions :: [(String, String)] -> Attr parseListingsOptions options = let kvs = [ (if k == "firstnumber" then "startFrom" else k, v) | (k,v) <- options ] classes = [ "numberLines" | lookup "numbers" options == Just "left" ] ++ maybeToList (lookup "language" options >>= fromListingsLanguage) in (fromMaybe "" (lookup "label" options), classes, kvs) inputListing :: PandocMonad m => LP m Blocks inputListing = do pos <- getPosition options <- option [] keyvals f <- filter (/='"') . toksToString <$> braced dirs <- (splitBy (==':') . fromMaybe ".") <$> lookupEnv "TEXINPUTS" mbCode <- readFileFromDirs dirs f codeLines <- case mbCode of Just s -> return $ lines s Nothing -> do report $ CouldNotLoadIncludeFile f pos return [] let (ident,classes,kvs) = parseListingsOptions options let language = case lookup "language" options >>= fromListingsLanguage of Just l -> [l] Nothing -> take 1 $ languagesByExtension (takeExtension f) let firstline = fromMaybe 1 $ lookup "firstline" options >>= safeRead let lastline = fromMaybe (length codeLines) $ lookup "lastline" options >>= safeRead let codeContents = intercalate "\n" $ take (1 + lastline - firstline) $ drop (firstline - 1) codeLines return $ codeBlockWith (ident,ordNub (classes ++ language),kvs) codeContents -- lists item :: PandocMonad m => LP m Blocks item = void blocks *> controlSeq "item" *> skipopts *> blocks descItem :: PandocMonad m => LP m (Inlines, [Blocks]) descItem = do blocks -- skip blocks before item controlSeq "item" optional sp ils <- opt bs <- blocks return (ils, [bs]) listenv :: PandocMonad m => Text -> LP m a -> LP m a listenv name p = try $ do oldInListItem <- sInListItem `fmap` getState updateState $ \st -> st{ sInListItem = True } res <- env name p updateState $ \st -> st{ sInListItem = oldInListItem } return res orderedList' :: PandocMonad m => LP m Blocks orderedList' = try $ do spaces let markerSpec = do symbol '[' ts <- toksToString <$> manyTill anyTok (symbol ']') case runParser anyOrderedListMarker def "option" ts of Right r -> return r Left _ -> do pos <- getPosition report $ SkippedContent ("[" ++ ts ++ "]") pos return (1, DefaultStyle, DefaultDelim) (_, style, delim) <- option (1, DefaultStyle, DefaultDelim) markerSpec spaces optional $ try $ controlSeq "setlength" *> grouped (count 1 $ controlSeq "itemindent") *> braced spaces start <- option 1 $ try $ do pos <- getPosition controlSeq "setcounter" ctr <- toksToString <$> braced guard $ "enum" `isPrefixOf` ctr guard $ all (`elem` ['i','v']) (drop 4 ctr) optional sp num <- toksToString <$> braced case safeRead num of Just i -> return (i + 1 :: Int) Nothing -> do report $ SkippedContent ("\\setcounter{" ++ ctr ++ "}{" ++ num ++ "}") pos return 1 bs <- listenv "enumerate" (many item) return $ orderedListWith (start, style, delim) bs -- tables hline :: PandocMonad m => LP m () hline = try $ do spaces controlSeq "hline" <|> -- booktabs rules: controlSeq "toprule" <|> controlSeq "bottomrule" <|> controlSeq "midrule" <|> controlSeq "endhead" <|> controlSeq "endfirsthead" spaces optional opt return () lbreak :: PandocMonad m => LP m Tok lbreak = (controlSeq "\\" <|> controlSeq "tabularnewline") <* spaces amp :: PandocMonad m => LP m Tok amp = symbol '&' -- Split a Word into individual Symbols (for parseAligns) splitWordTok :: PandocMonad m => LP m () splitWordTok = do inp <- getInput case inp of (Tok spos Word t : rest) -> setInput $ map (Tok spos Symbol . T.singleton) (T.unpack t) ++ rest _ -> return () parseAligns :: PandocMonad m => LP m [(Alignment, Double, ([Tok], [Tok]))] parseAligns = try $ do let maybeBar = skipMany $ sp <|> () <$ symbol '|' <|> () <$ (symbol '@' >> braced) let cAlign = AlignCenter <$ symbol 'c' let lAlign = AlignLeft <$ symbol 'l' let rAlign = AlignRight <$ symbol 'r' let parAlign = AlignLeft <$ symbol 'p' -- aligns from tabularx let xAlign = AlignLeft <$ symbol 'X' let mAlign = AlignLeft <$ symbol 'm' let bAlign = AlignLeft <$ symbol 'b' let alignChar = splitWordTok *> ( cAlign <|> lAlign <|> rAlign <|> parAlign <|> xAlign <|> mAlign <|> bAlign ) let alignPrefix = symbol '>' >> braced let alignSuffix = symbol '<' >> braced let colWidth = try $ do symbol '{' ds <- trim . toksToString <$> manyTill anyTok (controlSeq "linewidth") spaces symbol '}' case safeRead ds of Just w -> return w Nothing -> return 0.0 let alignSpec = do pref <- option [] alignPrefix spaces al <- alignChar width <- colWidth <|> option 0.0 (do s <- toksToString <$> braced pos <- getPosition report $ SkippedContent s pos return 0.0) spaces suff <- option [] alignSuffix return (al, width, (pref, suff)) let starAlign = do -- '*{2}{r}' == 'rr', we just expand like a macro symbol '*' spaces ds <- trim . toksToString <$> braced spaces spec <- braced case safeRead ds of Just n -> do getInput >>= setInput . (mconcat (replicate n spec) ++) Nothing -> fail $ "Could not parse " ++ ds ++ " as number" bgroup spaces maybeBar aligns' <- many $ try $ spaces >> optional starAlign >> (alignSpec <* maybeBar) spaces egroup spaces return aligns' parseTableRow :: PandocMonad m => Text -- ^ table environment name -> [([Tok], [Tok])] -- ^ pref/suffixes -> LP m [Blocks] parseTableRow envname prefsufs = do notFollowedBy (spaces *> end_ envname) let cols = length prefsufs -- add prefixes and suffixes in token stream: let celltoks (pref, suff) = do prefpos <- getPosition contents <- many (notFollowedBy (() <$ amp <|> () <$ lbreak <|> end_ envname) >> anyTok) suffpos <- getPosition option [] (count 1 amp) return $ map (setpos prefpos) pref ++ contents ++ map (setpos suffpos) suff rawcells <- mapM celltoks prefsufs oldInput <- getInput cells <- mapM (\ts -> setInput ts >> parseTableCell) rawcells setInput oldInput spaces let numcells = length cells guard $ numcells <= cols && numcells >= 1 guard $ cells /= [mempty] -- note: a & b in a three-column table leaves an empty 3rd cell: return $ cells ++ replicate (cols - numcells) mempty parseTableCell :: PandocMonad m => LP m Blocks parseTableCell = do let plainify bs = case toList bs of [Para ils] -> plain (fromList ils) _ -> bs updateState $ \st -> st{ sInTableCell = True } cells <- plainify <$> blocks updateState $ \st -> st{ sInTableCell = False } return cells simpTable :: PandocMonad m => Text -> Bool -> LP m Blocks simpTable envname hasWidthParameter = try $ do when hasWidthParameter $ () <$ (spaces >> tok) skipopts colspecs <- parseAligns let (aligns, widths, prefsufs) = unzip3 colspecs let cols = length colspecs optional $ controlSeq "caption" *> skipopts *> setCaption optional lbreak spaces skipMany hline spaces header' <- option [] $ try (parseTableRow envname prefsufs <* lbreak <* many1 hline) spaces rows <- sepEndBy (parseTableRow envname prefsufs) (lbreak <* optional (skipMany hline)) spaces optional $ controlSeq "caption" *> skipopts *> setCaption optional lbreak spaces let header'' = if null header' then replicate cols mempty else header' lookAhead $ controlSeq "end" -- make sure we're at end return $ table mempty (zip aligns widths) header'' rows addTableCaption :: PandocMonad m => Blocks -> LP m Blocks addTableCaption = walkM go where go (Table c als ws hs rs) = do mbcapt <- sCaption <$> getState return $ case mbcapt of Just ils -> Table (toList ils) als ws hs rs Nothing -> Table c als ws hs rs go x = return x block :: PandocMonad m => LP m Blocks block = (mempty <$ spaces1) <|> environment <|> include <|> macroDef <|> blockCommand <|> paragraph <|> grouped block blocks :: PandocMonad m => LP m Blocks blocks = mconcat <$> many block setDefaultLanguage :: PandocMonad m => LP m Blocks setDefaultLanguage = do o <- option "" $ (T.unpack . T.filter (\c -> c /= '[' && c /= ']')) <$> rawopt polylang <- toksToString <$> braced case M.lookup polylang polyglossiaLangToBCP47 of Nothing -> return mempty -- TODO mzero? warning? Just langFunc -> do let l = langFunc o setTranslations l updateState $ setMeta "lang" $ str (renderLang l) return mempty polyglossiaLangToBCP47 :: M.Map String (String -> Lang) polyglossiaLangToBCP47 = M.fromList [ ("arabic", \o -> case filter (/=' ') o of "locale=algeria" -> Lang "ar" "" "DZ" [] "locale=mashriq" -> Lang "ar" "" "SY" [] "locale=libya" -> Lang "ar" "" "LY" [] "locale=morocco" -> Lang "ar" "" "MA" [] "locale=mauritania" -> Lang "ar" "" "MR" [] "locale=tunisia" -> Lang "ar" "" "TN" [] _ -> Lang "ar" "" "" []) , ("german", \o -> case filter (/=' ') o of "spelling=old" -> Lang "de" "" "DE" ["1901"] "variant=austrian,spelling=old" -> Lang "de" "" "AT" ["1901"] "variant=austrian" -> Lang "de" "" "AT" [] "variant=swiss,spelling=old" -> Lang "de" "" "CH" ["1901"] "variant=swiss" -> Lang "de" "" "CH" [] _ -> Lang "de" "" "" []) , ("lsorbian", \_ -> Lang "dsb" "" "" []) , ("greek", \o -> case filter (/=' ') o of "variant=poly" -> Lang "el" "" "polyton" [] "variant=ancient" -> Lang "grc" "" "" [] _ -> Lang "el" "" "" []) , ("english", \o -> case filter (/=' ') o of "variant=australian" -> Lang "en" "" "AU" [] "variant=canadian" -> Lang "en" "" "CA" [] "variant=british" -> Lang "en" "" "GB" [] "variant=newzealand" -> Lang "en" "" "NZ" [] "variant=american" -> Lang "en" "" "US" [] _ -> Lang "en" "" "" []) , ("usorbian", \_ -> Lang "hsb" "" "" []) , ("latin", \o -> case filter (/=' ') o of "variant=classic" -> Lang "la" "" "" ["x-classic"] _ -> Lang "la" "" "" []) , ("slovenian", \_ -> Lang "sl" "" "" []) , ("serbianc", \_ -> Lang "sr" "cyrl" "" []) , ("pinyin", \_ -> Lang "zh" "Latn" "" ["pinyin"]) , ("afrikaans", \_ -> Lang "af" "" "" []) , ("amharic", \_ -> Lang "am" "" "" []) , ("assamese", \_ -> Lang "as" "" "" []) , ("asturian", \_ -> Lang "ast" "" "" []) , ("bulgarian", \_ -> Lang "bg" "" "" []) , ("bengali", \_ -> Lang "bn" "" "" []) , ("tibetan", \_ -> Lang "bo" "" "" []) , ("breton", \_ -> Lang "br" "" "" []) , ("catalan", \_ -> Lang "ca" "" "" []) , ("welsh", \_ -> Lang "cy" "" "" []) , ("czech", \_ -> Lang "cs" "" "" []) , ("coptic", \_ -> Lang "cop" "" "" []) , ("danish", \_ -> Lang "da" "" "" []) , ("divehi", \_ -> Lang "dv" "" "" []) , ("esperanto", \_ -> Lang "eo" "" "" []) , ("spanish", \_ -> Lang "es" "" "" []) , ("estonian", \_ -> Lang "et" "" "" []) , ("basque", \_ -> Lang "eu" "" "" []) , ("farsi", \_ -> Lang "fa" "" "" []) , ("finnish", \_ -> Lang "fi" "" "" []) , ("french", \_ -> Lang "fr" "" "" []) , ("friulan", \_ -> Lang "fur" "" "" []) , ("irish", \_ -> Lang "ga" "" "" []) , ("scottish", \_ -> Lang "gd" "" "" []) , ("ethiopic", \_ -> Lang "gez" "" "" []) , ("galician", \_ -> Lang "gl" "" "" []) , ("hebrew", \_ -> Lang "he" "" "" []) , ("hindi", \_ -> Lang "hi" "" "" []) , ("croatian", \_ -> Lang "hr" "" "" []) , ("magyar", \_ -> Lang "hu" "" "" []) , ("armenian", \_ -> Lang "hy" "" "" []) , ("interlingua", \_ -> Lang "ia" "" "" []) , ("indonesian", \_ -> Lang "id" "" "" []) , ("icelandic", \_ -> Lang "is" "" "" []) , ("italian", \_ -> Lang "it" "" "" []) , ("japanese", \_ -> Lang "jp" "" "" []) , ("khmer", \_ -> Lang "km" "" "" []) , ("kurmanji", \_ -> Lang "kmr" "" "" []) , ("kannada", \_ -> Lang "kn" "" "" []) , ("korean", \_ -> Lang "ko" "" "" []) , ("lao", \_ -> Lang "lo" "" "" []) , ("lithuanian", \_ -> Lang "lt" "" "" []) , ("latvian", \_ -> Lang "lv" "" "" []) , ("malayalam", \_ -> Lang "ml" "" "" []) , ("mongolian", \_ -> Lang "mn" "" "" []) , ("marathi", \_ -> Lang "mr" "" "" []) , ("dutch", \_ -> Lang "nl" "" "" []) , ("nynorsk", \_ -> Lang "nn" "" "" []) , ("norsk", \_ -> Lang "no" "" "" []) , ("nko", \_ -> Lang "nqo" "" "" []) , ("occitan", \_ -> Lang "oc" "" "" []) , ("panjabi", \_ -> Lang "pa" "" "" []) , ("polish", \_ -> Lang "pl" "" "" []) , ("piedmontese", \_ -> Lang "pms" "" "" []) , ("portuguese", \_ -> Lang "pt" "" "" []) , ("romansh", \_ -> Lang "rm" "" "" []) , ("romanian", \_ -> Lang "ro" "" "" []) , ("russian", \_ -> Lang "ru" "" "" []) , ("sanskrit", \_ -> Lang "sa" "" "" []) , ("samin", \_ -> Lang "se" "" "" []) , ("slovak", \_ -> Lang "sk" "" "" []) , ("albanian", \_ -> Lang "sq" "" "" []) , ("serbian", \_ -> Lang "sr" "" "" []) , ("swedish", \_ -> Lang "sv" "" "" []) , ("syriac", \_ -> Lang "syr" "" "" []) , ("tamil", \_ -> Lang "ta" "" "" []) , ("telugu", \_ -> Lang "te" "" "" []) , ("thai", \_ -> Lang "th" "" "" []) , ("turkmen", \_ -> Lang "tk" "" "" []) , ("turkish", \_ -> Lang "tr" "" "" []) , ("ukrainian", \_ -> Lang "uk" "" "" []) , ("urdu", \_ -> Lang "ur" "" "" []) , ("vietnamese", \_ -> Lang "vi" "" "" []) ]