diff options
Diffstat (limited to 'src/Text/Pandoc/Readers/LaTeX')
| -rw-r--r-- | src/Text/Pandoc/Readers/LaTeX/Parsing.hs | 39 |
1 files changed, 23 insertions, 16 deletions
diff --git a/src/Text/Pandoc/Readers/LaTeX/Parsing.hs b/src/Text/Pandoc/Readers/LaTeX/Parsing.hs index 74305b824..c348ba572 100644 --- a/src/Text/Pandoc/Readers/LaTeX/Parsing.hs +++ b/src/Text/Pandoc/Readers/LaTeX/Parsing.hs @@ -49,6 +49,7 @@ module Text.Pandoc.Readers.LaTeX.Parsing , toksToString , satisfyTok , doMacros + , doMacros' , setpos , anyControlSeq , anySymbol @@ -451,22 +452,28 @@ doMacros' n inp = do case M.lookup name macros of Nothing -> return Nothing Just (Macro expansionPoint argspecs optarg newtoks) -> do - setInput ts - args <- case optarg of - Nothing -> getargs M.empty argspecs - Just o -> do - x <- option o bracketedToks - getargs (M.singleton 1 x) argspecs - -- first boolean param is true if we're tokenizing - -- an argument (in which case we don't want to - -- expand #1 etc.) - ts' <- getInput - let result = foldr (addTok False args spos) ts' newtoks - case expansionPoint of - ExpandWhenUsed -> - doMacros' (n' + 1) result >>= - maybe (return (Just result)) (return . Just) - ExpandWhenDefined -> return $ Just result + let getargs' = do + args <- case optarg of + Nothing -> getargs M.empty argspecs + Just o -> do + x <- option o bracketedToks + getargs (M.singleton 1 x) argspecs + rest <- getInput + return (args, rest) + lstate <- getState + res <- lift $ runParserT getargs' lstate "args" ts + case res of + Left _ -> fail $ "Could not parse arguments for " ++ + T.unpack name + Right (args, rest) -> do + -- first boolean param is true if we're tokenizing + -- an argument (in which case we don't want to + -- expand #1 etc.) + let result = foldr (addTok False args spos) rest newtoks + case expansionPoint of + ExpandWhenUsed -> + maybe (Just result) Just <$> doMacros' (n' + 1) result + ExpandWhenDefined -> return $ Just result setpos :: SourcePos -> Tok -> Tok setpos spos (Tok _ tt txt) = Tok spos tt txt |