diff options
Diffstat (limited to 'src/Text/Pandoc/Readers/LaTeX.hs')
| -rw-r--r-- | src/Text/Pandoc/Readers/LaTeX.hs | 117 |
1 files changed, 109 insertions, 8 deletions
diff --git a/src/Text/Pandoc/Readers/LaTeX.hs b/src/Text/Pandoc/Readers/LaTeX.hs index 0bc13d2dd..f02d7a564 100644 --- a/src/Text/Pandoc/Readers/LaTeX.hs +++ b/src/Text/Pandoc/Readers/LaTeX.hs @@ -38,7 +38,7 @@ import Text.Pandoc.Definition import Text.Pandoc.Shared import Text.Pandoc.Parsing import Data.Maybe ( fromMaybe ) -import Data.Char ( chr ) +import Data.Char ( chr, toUpper ) import Data.List ( isPrefixOf, isSuffixOf ) import Control.Monad ( when ) @@ -50,7 +50,7 @@ readLaTeX = readWith parseLaTeX -- characters with special meaning specialChars :: [Char] -specialChars = "\\`$%^&_~#{}\n \t|<>'\"-" +specialChars = "\\`$%^&_~#{}[]\n \t|<>'\"-" -- -- utility functions @@ -150,7 +150,7 @@ block = choice [ hrule , header , list , blockQuote - , comment + , commentBlock , bibliographic , para , itemBlock @@ -433,11 +433,10 @@ unknownCommand = try $ do else return $ Plain [Str $ concat args] commandsToIgnore :: [String] -commandsToIgnore = ["special","pdfannot","pdfstringdef"] +commandsToIgnore = ["special","pdfannot","pdfstringdef","bibliography"] --- latex comment -comment :: GenParser Char st Block -comment = try $ char '%' >> manyTill anyChar newline >> spaces >> return Null +commentBlock :: GenParser Char st Block +commentBlock = comment >> return Null -- -- inline @@ -469,12 +468,19 @@ inline = choice [ str , linebreak , accentedChar , nonbreakingSpace + , cite , specialChar , rawLaTeXInline' , escapedChar , unescapedChar + , comment ] <?> "inline" + +-- latex comment +comment :: GenParser Char st Inline +comment = try $ char '%' >> manyTill anyChar newline >> spaces >> return (Str "") + accentedChar :: GenParser Char st Inline accentedChar = normalAccentedChar <|> specialAccentedChar @@ -564,7 +570,7 @@ escapedChar = do -- nonescaped special characters unescapedChar :: GenParser Char st Inline -unescapedChar = oneOf "`$^&_#{}|<>" >>= return . (\c -> Str [c]) +unescapedChar = oneOf "`$^&_#{}[]|<>" >>= return . (\c -> Str [c]) specialChar :: GenParser Char st Inline specialChar = choice [ spacer, interwordSpace, @@ -788,6 +794,101 @@ footnote = try $ do setInput rest return $ Note blocks +-- | citations +cite :: GenParser Char ParserState Inline +cite = simpleCite <|> complexNatbibCites + +simpleCiteArgs :: GenParser Char ParserState [Citation] +simpleCiteArgs = try $ do + first <- optionMaybe $ (char '[') >> manyTill inline (char ']') + second <- optionMaybe $ (char '[') >> manyTill inline (char ']') + char '{' + keys <- many1Till citationLabel (char '}') + let (pre, suf) = case (first , second ) of + (Just s , Nothing) -> ([], s ) + (Just s , Just t ) -> (s , t ) + _ -> ([], []) + conv k = Citation { citationId = k + , citationPrefix = [] + , citationSuffix = [] + , citationMode = NormalCitation + , citationHash = 0 + , citationNoteNum = 0 + } + return $ addPrefix pre $ addSuffix suf $ map conv keys + + +simpleCite :: GenParser Char ParserState Inline +simpleCite = try $ do + char '\\' + let biblatex = [a ++ "cite" | a <- ["auto", "foot", "paren", "super", ""]] + ++ ["footcitetext"] + normal = ["cite" ++ a ++ b | a <- ["al", ""], b <- ["p", "p*", ""]] + ++ biblatex + supress = ["citeyearpar", "citeyear", "autocite*", "cite*", "parencite*"] + intext = ["textcite"] ++ ["cite" ++ a ++ b | a <- ["al", ""], b <- ["t", "t*"]] + mintext = ["textcites"] + mnormal = map (++ "s") biblatex + cmdend = notFollowedBy (letter <|> char '*') + addUpper xs = xs ++ map (\(c:cs) -> toUpper c : cs) xs + toparser l t = try $ oneOfStrings (addUpper l) >> cmdend >> return t + (mode, multi) <- toparser normal (NormalCitation, False) + <|> toparser supress (SuppressAuthor, False) + <|> toparser intext (AuthorInText , False) + <|> toparser mnormal (NormalCitation, True ) + <|> toparser mintext (AuthorInText , True ) + cits <- if multi then + many1 simpleCiteArgs + else + simpleCiteArgs >>= \c -> return [c] + let (c:cs) = concat cits + cits' = case mode of + AuthorInText -> c {citationMode = mode} : cs + _ -> map (\a -> a {citationMode = mode}) (c:cs) + return $ Cite cits' [] + +complexNatbibCites :: GenParser Char ParserState Inline +complexNatbibCites = complexNatbibTextual <|> complexNatbibParenthetical + +complexNatbibTextual :: GenParser Char ParserState Inline +complexNatbibTextual = try $ do + string "\\citeauthor{" + manyTill (noneOf "}") (char '}') + skipSpaces + Cite (c:cs) _ <- complexNatbibParenthetical + return $ Cite (c {citationMode = AuthorInText} : cs) [] + + +complexNatbibParenthetical :: GenParser Char ParserState Inline +complexNatbibParenthetical = try $ do + string "\\citetext{" + cits <- many1Till parseOne (char '}') + return $ Cite (concat cits) [] + where + parseOne = do + skipSpaces + pref <- many (notFollowedBy (oneOf "\\}") >> inline) + (Cite cites _) <- simpleCite + suff <- many (notFollowedBy (oneOf "\\};") >> inline) + skipSpaces + optional $ char ';' + return $ addPrefix pref $ addSuffix suff $ cites + +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 _ _ = [] + +citationLabel :: GenParser Char ParserState String +citationLabel = do + res <- many1 $ noneOf ",}" + optional $ char ',' + return $ removeLeadingTrailingSpace res + -- | Parse any LaTeX inline command and return it in a raw TeX inline element. rawLaTeXInline' :: GenParser Char ParserState Inline rawLaTeXInline' = do |