X-Git-Url: https://ruin.nu/git/?a=blobdiff_plain;f=Wiki.hs;h=41fa15a8cd5d532b84aa03b79a97fc8fef79c017;hb=b9ff8d1cc183f8f07056efb4680b8b56556d4246;hp=f2a68f28e432b1f8005e7ebc31c2b1c4aab5a295;hpb=0faacae411100c8ba6606c22a453bff6a5517a11;p=yawbih.git diff --git a/Wiki.hs b/Wiki.hs index f2a68f2..41fa15a 100644 --- a/Wiki.hs +++ b/Wiki.hs @@ -2,7 +2,7 @@ module Wiki ( Backend (getCurrent,getList,get,setCurrent,update) ,PGB ,createPGB - ,Markup (Text, Paragraph, Link) + ,Markup (Text, Paragraph, Link, Bold, Emph) ,Document ,wikiParser @@ -20,7 +20,7 @@ class Backend a where getList :: a -> String -> IO [(String, String, String, String)] --Keyword -> id -> Full text - get :: a -> String -> String -> IO String + get :: a -> String -> String -> IO (Maybe String) --Keyword -> id -> () setCurrent :: a -> String -> String -> IO Bool @@ -31,17 +31,14 @@ class Backend a where data Markup = Text String | Paragraph | Link String String + | Bold [Markup] + | Emph [Markup] type Document = [Markup] wikiParser :: GenParser Char st Document wikiParser = do - s <- (try (pPara) - <|> pSpace - <|> try (pLinkLong) - <|> try (pLink) - <|> pOtherChar - <|> pText) + s <- pMain ss <- (wikiParser <|> return []) return (s:ss) @@ -63,42 +60,49 @@ pLinkLong = do string "[[" l <- many1 $ noneOf ['|'] char '|' - d <- many1 $ noneOf [']'] + d <- many1 $ noneOf "]" string "]]" return (Link l d) + pLink = do string "[[" - l <- many1 $ noneOf ['|','[',']'] + l <- many1 $ noneOf "]" string "]]" return (Link l l) + +pBold = do + string "**" + s <- pStringParser "**" + return (Bold s) + +pEmph = do + string "//" + s <- pStringParser "//" + return (Emph s) + +pStringParser xs = do + (string xs >> return []) <|> (do + s <- pMain + ss <- pStringParser xs + return (s:ss)) + +pMain = (try (pPara) + <|> pSpace + <|> try(pBold) + <|> try(pEmph) + <|> try (pLinkLong) + <|> try (pLink) + <|> pOtherChar + <|> pText) + pOtherChar = do - c <- satisfy validChar + c <- oneOf "*,;.:!?[]()'\"=-%$£<>/\\|" return (Text (c:[])) pText = do t <- many1 alphaNum--(noneOf ['\n','\r','[',']']) return (Text t) -validChar ',' = True -validChar '.' = True -validChar '!' = True -validChar '?' = True -validChar '[' = True -validChar ']' = True -validChar '\'' = True -validChar '"' = True -validChar '=' = True -validChar '-' = True -validChar '%' = True -validChar '$' = True -validChar '£' = True -validChar '<' = True -validChar '>' = True -validChar '/' = True -validChar '\\' = True -validChar '|' = True -validChar _ = False - newtype PGB = PGB DBService @@ -120,7 +124,11 @@ instance Backend PGB where list <- selectReturnTuples db $ "SELECT id, timestamp, author, comment from fulltexts WHERE keyword = "++tov key return $ map (\[id,date,author,comment] -> (id,date,author,comment)) list - get (PGB db) key id = return "" + get (PGB db) key id = do + list <- selectReturnTuples db $ "SELECT fulltext from fulltexts WHERE id = "++tov id + case list of + [s]:_ -> return (Just s) + _ -> return Nothing setCurrent (PGB db) key id = do full <- selectReturnTuples db $ "SELECT keyword FROM fulltexts WHERE keyword="++tov key++" AND id='"++id++"'"