diff options
Diffstat (limited to 'src/Text/Pandoc/Readers')
| -rw-r--r-- | src/Text/Pandoc/Readers/Textile.hs | 118 |
1 files changed, 67 insertions, 51 deletions
diff --git a/src/Text/Pandoc/Readers/Textile.hs b/src/Text/Pandoc/Readers/Textile.hs index 796f96e06..f9221ef9a 100644 --- a/src/Text/Pandoc/Readers/Textile.hs +++ b/src/Text/Pandoc/Readers/Textile.hs @@ -18,7 +18,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA {- | Module : Text.Pandoc.Readers.Textile - Copyright : Copyright (C) 2010-2011 Paul Rivier and John MacFarlane + Copyright : Copyright (C) 2010-2012 Paul Rivier and John MacFarlane License : GNU GPL, version 2 or above Maintainer : Paul Rivier <paul*rivier#demotera*com> @@ -62,7 +62,7 @@ import Text.Pandoc.Readers.HTML ( htmlTag, isInlineTag, isBlockTag ) import Text.Pandoc.Readers.LaTeX ( rawLaTeXInline, rawLaTeXBlock ) import Text.ParserCombinators.Parsec import Text.HTML.TagSoup.Match -import Data.Char ( digitToInt, isLetter ) +import Data.Char ( digitToInt, isUpper ) import Control.Monad ( guard, liftM ) import Control.Applicative ((<$>), (*>), (<*)) @@ -74,14 +74,6 @@ readTextile state s = (readWith parseTextile) state{ stateOldDashes = True } (s ++ "\n\n") --- --- Constants and data structure definitions --- - --- | Special chars border strings parsing -specialChars :: [Char] -specialChars = "\\[]<>*#_@~-+^&,.;:!?|\"'%()=" - -- | Generate a Pandoc ADT from a textile document parseTextile :: GenParser Char ParserState Pandoc parseTextile = do @@ -360,14 +352,8 @@ inlineParsers = [ autoLink , rawHtmlInline , rawLaTeXInline' , note - , simpleInline (string "??") (Cite []) - , simpleInline (string "**") Strong - , simpleInline (string "__") Emph - , simpleInline (char '*') Strong - , simpleInline (char '_') Emph - , simpleInline (char '-') Strikeout - , simpleInline (char '^') Superscript - , simpleInline (char '~') Subscript + , try $ (char '[' *> inlineMarkup <* char ']') + , inlineMarkup , link , image , mark @@ -375,6 +361,18 @@ inlineParsers = [ autoLink , symbol ] +-- | Inline markups +inlineMarkup :: GenParser Char ParserState Inline +inlineMarkup = choice [ simpleInline (string "??") (Cite []) + , simpleInline (string "**") Strong + , simpleInline (string "__") Emph + , simpleInline (char '*') Strong + , simpleInline (char '_') Emph + , simpleInline (char '-') Strikeout + , simpleInline (char '^') Superscript + , simpleInline (char '~') Subscript + ] + -- | Trademark, registered, copyright mark :: GenParser Char st Inline mark = try $ char '(' >> (try tm <|> try reg <|> copy) @@ -400,33 +398,49 @@ copy = do note :: GenParser Char ParserState Inline note = try $ do - char '[' - ref <- many1 digit - char ']' - state <- getState - let notes = stateNotes state + ref <- (char '[' *> many1 digit <* char ']') + notes <- stateNotes <$> getState case lookup ref notes of Nothing -> fail "note not found" Just raw -> liftM Note $ parseFromString parseBlocks raw +-- | Special chars +markupChars :: [Char] +markupChars = "\\[]*#_@~-+^|%=" + +-- | Break strings on following chars. Space tab and newline break for +-- inlines breaking. Open paren breaks for mark. Quote, dash and dot +-- break for smart punctuation. Punctuation breaks for regular +-- punctuation. Double quote breaks for named links. > and < break +-- for inline html. +stringBreakers :: [Char] +stringBreakers = " \t\n('-.,:!?;\"<>" + +wordBoundaries :: [Char] +wordBoundaries = markupChars ++ stringBreakers + +-- | Parse a hyphened sequence of words +hyphenedWords :: GenParser Char ParserState String +hyphenedWords = try $ do + hd <- noneOf wordBoundaries + tl <- many ( (noneOf wordBoundaries) <|> + try (oneOf markupChars <* lookAhead (noneOf wordBoundaries) ) ) + let wd = hd:tl + option wd $ try $ + (\r -> concat [wd, "-", r]) <$> (char '-' *> hyphenedWords) + -- | Any string str :: GenParser Char ParserState Inline str = do - xs <- many1 (noneOf (specialChars ++ "\t\n ")) - optional $ try $ do - lookAhead (char '(') - notFollowedBy' mark - getInput >>= setInput . (' ':) -- add space before acronym explanation - -- parse a following hyphen if followed by a letter - -- (this prevents unwanted interpretation as starting a strikeout section) - result <- option xs $ try $ do - char '-' - next <- lookAhead letter - guard $ isLetter (last xs) || isLetter next - return $ xs ++ "-" - pos <- getPosition - updateState $ \s -> s{ stateLastStrPos = Just pos } - return $ Str result + baseStr <- hyphenedWords + -- RedCloth compliance : if parsed word is uppercase and immediatly + -- followed by parens, parens content is unconditionally word acronym + fullStr <- option baseStr $ try $ do + guard $ all isUpper baseStr + acro <- enclosed (char '(') (char ')') anyChar + return $ concat [baseStr, " (", acro, ")"] + updateLastStrPos + return $ Str fullStr -- | Textile allows HTML span infos, we discard them htmlSpan :: GenParser Char ParserState Inline @@ -477,34 +491,36 @@ image = try $ do escapedInline :: GenParser Char ParserState Inline escapedInline = escapedEqs <|> escapedTag --- | literal text escaped between == ... == escapedEqs :: GenParser Char ParserState Inline -escapedEqs = try $ do - string "==" - contents <- manyTill anyChar (try $ string "==") - return $ Str contents +escapedEqs = Str <$> (try $ surrounded (string "==") anyChar) + +-- -- | literal text escaped between == ... == +-- escapedEqs :: GenParser Char ParserState Inline +-- escapedEqs = try $ do +-- string "==" +-- contents <- manyTill anyChar (try $ string "==") +-- return $ Str contents -- | literal text escaped btw <notextile> tags escapedTag :: GenParser Char ParserState Inline -escapedTag = try $ Str <$> ( string "<notextile>" *> - manyTill anyChar (try $ string "</notextile>") ) +escapedTag = try $ Str <$> + enclosed (string "<notextile>") (string "</notextile>") anyChar --- | Any special symbol defined in specialChars +-- | Any special symbol defined in wordBoundaries symbol :: GenParser Char ParserState Inline -symbol = Str . singleton <$> oneOf specialChars +symbol = Str . singleton <$> oneOf wordBoundaries -- | Inline code code :: GenParser Char ParserState Inline code = code1 <|> code2 code1 :: GenParser Char ParserState Inline -code1 = surrounded (char '@') anyChar >>= return . Code nullAttr +code1 = Code nullAttr <$> surrounded (char '@') anyChar code2 :: GenParser Char ParserState Inline code2 = do htmlTag (tagOpen (=="tt") null) - result' <- manyTill anyChar (try $ htmlTag $ tagClose (=="tt")) - return $ Code nullAttr result' + Code nullAttr <$> manyTill anyChar (try $ htmlTag $ tagClose (=="tt")) -- | Html / CSS attributes attributes :: GenParser Char ParserState String @@ -528,4 +544,4 @@ simpleInline border construct = surrounded border (inlineWithAttribute) >>= -- | Create a singleton list singleton :: a -> [a] -singleton x = [x]
\ No newline at end of file +singleton x = [x] |