X-Git-Url: https://ruin.nu/git/?a=blobdiff_plain;f=Wiki.hs;h=59e592938df2e7fbb25634bb30b65dd357f05735;hb=ee02e144cc032d02afc0aaf3b1e73a1a68963ac6;hp=337d715eb9160b83cd94e2fa2549de67e09fd6da;hpb=0c6dd605b59c2f36cdd76eabdf4540dae424d105;p=yawbih.git

diff --git a/Wiki.hs b/Wiki.hs
index 337d715..59e5929 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, Heading, Url)
 	,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 +31,16 @@ class Backend a where
 data Markup = Text String
 	| Paragraph 
 	| Link String String
+	| Bold [Markup]
+	| Emph [Markup]
+	| Heading Int [Markup]
+	| Url String
 
 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)
 
@@ -66,13 +65,55 @@ pLinkLong = do
 	d <- many1 $ noneOf "]" 
 	string "]]"
 	return (Link l d)
+
 pLink = do
 	string "[["
 	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 
+	try (string xs >> return []) <|> (do
+		s <- pMain 
+		ss <- pStringParser xs
+		return (s:ss))
+
+pHeading = do
+	many1 pEol
+	level <- many1 $ char '='
+	char ' '
+	s <- pStringParser (' ':level)
+	return (Heading (length level) s)
+
+pURL = do
+	proto <- many1 letter
+	string "://"
+	s <- many1 (alphaNum <|> oneOf "?.:&-/")
+	return (Url (proto++"://"++s))
+	
+pMain = try (pHeading)
+	<|> (try (pPara) 
+	<|> pSpace 
+	<|> try(pBold) 
+	<|> try(pEmph) 
+	<|> try (pLinkLong)
+	<|> try (pLink)
+	<|> try (pURL)
+	<|> pOtherChar
+	<|> pText)	
+
 pOtherChar = do
-	c <- oneOf ",;.:!?[]()\'\"=-%$£<>/\\|"
+	c <- oneOf "*,;.:!?[]()'\"=-%$£<>/\\|"
 	return (Text (c:[]))
 
 pText = do
@@ -100,7 +141,11 @@ 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++"'"