diff options
Diffstat (limited to 'src/Text')
| -rw-r--r-- | src/Text/Pandoc/Readers/LaTeX/Parsing.hs | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/src/Text/Pandoc/Readers/LaTeX/Parsing.hs b/src/Text/Pandoc/Readers/LaTeX/Parsing.hs index 9256217fe..556d0ca97 100644 --- a/src/Text/Pandoc/Readers/LaTeX/Parsing.hs +++ b/src/Text/Pandoc/Readers/LaTeX/Parsing.hs @@ -403,30 +403,30 @@ doMacros n = do Tok spos (CtrlSeq (name <> w)) (x1 <> w <> x2) : ts where (x1, x2) = T.break isSpaceOrTab x combineTok t ts = t:ts + matchTok (Tok _ toktype txt) = + satisfyTok (\(Tok _ toktype' txt') -> + toktype == toktype' && + txt == txt') + matchPattern toks = try $ mapM_ matchTok toks + getargs argmap [] = return argmap + getargs argmap (Pattern toks : rest) = try $ do + matchPattern toks + getargs argmap rest + getargs argmap (ArgNum i : Pattern toks : rest) = + try $ do + x <- mconcat <$> manyTill + (braced <|> ((:[]) <$> anyTok)) + (matchPattern toks) + getargs (M.insert i x argmap) rest + getargs argmap (ArgNum i : rest) = do + x <- try $ spaces >> bracedOrToken + getargs (M.insert i x argmap) rest handleMacros spos name ts = do macros <- sMacros <$> getState case M.lookup name macros of Nothing -> return () Just (Macro expansionPoint argspecs optarg newtoks) -> do setInput ts - let matchTok (Tok _ toktype txt) = - satisfyTok (\(Tok _ toktype' txt') -> - toktype == toktype' && - txt == txt') - let matchPattern toks = try $ mapM_ matchTok toks - let getargs argmap [] = return argmap - getargs argmap (Pattern toks : rest) = try $ do - matchPattern toks - getargs argmap rest - getargs argmap (ArgNum i : Pattern toks : rest) = - try $ do - x <- mconcat <$> manyTill - (braced <|> ((:[]) <$> anyTok)) - (matchPattern toks) - getargs (M.insert i x argmap) rest - getargs argmap (ArgNum i : rest) = do - x <- try $ spaces >> bracedOrToken - getargs (M.insert i x argmap) rest args <- case optarg of Nothing -> getargs M.empty argspecs Just o -> do @@ -442,12 +442,13 @@ doMacros n = do -- see #4007 addTok _ (Tok _ (CtrlSeq x) txt) acc@(Tok _ Word _ : _) - | not (T.null txt) && - isLetter (T.last txt) = + | 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 False) ts' newtoks + case expansionPoint of ExpandWhenUsed -> if n > 20 -- detect macro expansion loops |