diff options
Diffstat (limited to 'src/Text/Pandoc/Parsing.hs')
| -rw-r--r-- | src/Text/Pandoc/Parsing.hs | 40 |
1 files changed, 17 insertions, 23 deletions
diff --git a/src/Text/Pandoc/Parsing.hs b/src/Text/Pandoc/Parsing.hs index 06919c888..c83a95ae1 100644 --- a/src/Text/Pandoc/Parsing.hs +++ b/src/Text/Pandoc/Parsing.hs @@ -160,6 +160,7 @@ import Text.HTML.TagSoup.Entity ( lookupEntity ) import Data.Default import qualified Data.Set as Set import Control.Monad.Reader +import Control.Applicative ((*>), (<*), liftA2) import Data.Monoid type Parser t s = Parsec t s @@ -332,32 +333,25 @@ romanNumeral upperCase = do -- Parsers for email addresses and URIs -emailChar :: Parser [Char] st Char -emailChar = alphaNum <|> oneOf "!\"#$%&'*+-/0123456789=?^_{|}~" - -domain :: Parser [Char] st String -domain = do - x <- subdomain - xs <- many (try $ char '.' >> subdomain) - return $ intercalate "." (x:xs) - -subdomain :: Parser [Char] st String -subdomain = many1 (emailChar <|> char '@') - -emailWord :: Parser [Char] st String -emailWord = many1 emailChar -- ignores possibility of quoted strings - -- | Parses an email address; returns original and corresponding -- escaped mailto: URI. emailAddress :: Parser [Char] st (String, String) -emailAddress = try $ do - x <- emailWord - xs <- many (try $ char '.' >> emailWord) - let addr = intercalate "." (x:xs) - char '@' - dom <- domain - let full = addr ++ '@':dom - return (full, escapeURI $ "mailto:" ++ full) +emailAddress = try $ liftA2 toResult mailbox (char '@' *> domain) + where toResult mbox dom = let full = mbox ++ '@':dom + in (full, escapeURI $ "mailto:" ++ full) + mailbox = intercalate "." `fmap` (emailWord `sepby1` dot) + domain = intercalate "." `fmap` (subdomain `sepby1` dot) + dot = char '.' + subdomain = many1 $ alphaNum <|> innerPunct + innerPunct = try (satisfy (\c -> isEmailPunct c || c == '@') <* + notFollowedBy space) + emailWord = many1 $ satisfy isEmailChar + isEmailChar c = isAlphaNum c || isEmailPunct c + isEmailPunct c = c `elem` "!\"#$%&'*+-/=?^_{|}~" + -- note: sepBy1 from parsec consumes input when sep + -- succeeds and p fails, so we use this variant here. + sepby1 p sep = liftA2 (:) p (many (try $ sep >> p)) + -- | Parses a URI. Returns pair of original and URI-escaped version. uri :: Parser [Char] st (String, String) |