diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Text/Pandoc/Readers/Man.hs | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/src/Text/Pandoc/Readers/Man.hs b/src/Text/Pandoc/Readers/Man.hs index 0f84a01b3..9802216c6 100644 --- a/src/Text/Pandoc/Readers/Man.hs +++ b/src/Text/Pandoc/Readers/Man.hs @@ -149,12 +149,12 @@ readMan opts txt = do -- lexMan :: PandocMonad m => ManLexer m [ManToken] -lexMan = many (lexMacro <|> lexLine <|> lexEmptyLine) +lexMan = many (lexComment <|> lexMacro <|> lexLine <|> lexEmptyLine) parseMan :: PandocMonad m => ManParser m Pandoc parseMan = do let parsers = [ try parseList, parseTitle, parsePara, parseSkippedContent - , parseCodeBlock, parseHeader, parseSkipMacro] + , try parseCodeBlock, parseHeader, parseSkipMacro] blocks <- many $ choice parsers parserst <- getState return $ Pandoc (stateMeta parserst) (filter (not . isNull) blocks) @@ -174,7 +174,7 @@ spacetab = char ' ' <|> char '\t' escapeLexer :: PandocMonad m => ManLexer m EscapeThing escapeLexer = do char '\\' - choice [escChar, escFont] + choice [escChar, escFont, escUnknown] where escChar :: PandocMonad m => ManLexer m EscapeThing @@ -182,7 +182,7 @@ escapeLexer = do let skipSeqs = ["%", "{", "}", "&", "\n", ":", "\"", "0", "c"] subsSeqs = [ ("-", '-'), (" ", ' '), ("\\", '\\'), ("[lq]", '“'), ("[rq]", '”') , ("[em]", '—'), ("[en]", '–'), ("*(lq", '«'), ("*(rq", '»') - , ("t", '\t'), ("e", '\\') ] + , ("t", '\t'), ("e", '\\'), ("`", '`') ] substitute :: PandocMonad m => (String,Char) -> ManLexer m EscapeThing substitute (from,to) = try $ string from >> return (EChar to) skip :: PandocMonad m => String -> ManLexer m EscapeThing @@ -201,6 +201,7 @@ escapeLexer = do , try (char '[' >> letterFont >>= \f -> char ']' >> return f) , try $ string "[BI]" >> return ItalicBold , char '[' >> many letter >> char ']' >> return Regular + , digit >> return Regular ] modifyState (\r -> r {fontKind = font}) return $ EFont font @@ -214,11 +215,27 @@ escapeLexer = do , (char 'P' <|> char 'R') >> return Regular ] + escUnknown :: PandocMonad m => ManLexer m EscapeThing + escUnknown = do + c <- anyChar + pos <- getPosition + logOutput $ SkippedContent ("Unknown escape seq \\" ++ [c]) pos + return ENothing + currentFont :: PandocMonad m => ManLexer m FontKind currentFont = do RoffState {fontKind = fk} <- getState return fk +-- separate function from lexMacro since real man files sometimes do not follow the rules +lexComment :: PandocMonad m => ManLexer m ManToken +lexComment = do + try $ string ".\\\"" + many space + body <- many $ noneOf "\n" + char '\n' + return $ MComment body + lexMacro :: PandocMonad m => ManLexer m ManToken lexMacro = do char '.' <|> char '\'' @@ -249,7 +266,7 @@ lexMacro = do where - -- TODO rework args + -- TODO better would be [[RoffStr]], since one arg may have different fonts lexArgs :: PandocMonad m => ManLexer m [RoffStr] lexArgs = do args <- many oneArg @@ -261,21 +278,24 @@ lexMacro = do oneArg :: PandocMonad m => ManLexer m RoffStr oneArg = do many1 spacetab - quotedArg <|> plainArg + many $ try $ string "\\\n" + try quotedArg <|> plainArg -- try, because there are some erroneous files, e.g. linux/bpf.2 plainArg :: PandocMonad m => ManLexer m RoffStr plainArg = do + indents <- many spacetab arg <- many1 $ escChar <|> (Just <$> noneOf " \t\n") f <- currentFont - return (catMaybes arg, f) + return (indents ++ catMaybes arg, f) quotedArg :: PandocMonad m => ManLexer m RoffStr quotedArg = do char '"' - val <- catMaybes <$> many quotedChar + val <- many quotedChar char '"' + val2 <- many $ escChar <|> (Just <$> noneOf " \t\n") f <- currentFont - return (val, f) + return (catMaybes $ val ++ val2, f) quotedChar :: PandocMonad m => ManLexer m (Maybe Char) quotedChar = escChar <|> (Just <$> noneOf "\"\n") <|> (Just <$> try (string "\"\"" >> return '"')) |