X-Git-Url: https://ruin.nu/git/?p=yawbih.git;a=blobdiff_plain;f=Wiki.hs;h=a2b6548509f8282f73af4d2059216c4b91c23673;hp=c531f8ac271c90d9bad964bced24d963ffe7209d;hb=64b58e5b75b4c8e95574fa9080166f5cf1079005;hpb=a7ff060c616ef83fcd3fac49ba1ef874c44ab8b1

diff --git a/Wiki.hs b/Wiki.hs
index c531f8a..a2b6548 100644
--- a/Wiki.hs
+++ b/Wiki.hs
@@ -1,10 +1,11 @@
 module Wiki (
-	Backend (getCurrent,getList,get,setCurrent,update)
+	Backend (getCurrent,getList,get,setCurrent,update,listKeys)
 	,PGB
 	,createPGB
-	,Markup (Text, Paragraph, Link, Bold, Emph, Heading, Url, Underline, Strike)
+	,Markup (Text, Paragraph, Link, Bold, Emph, Heading, Url, Underline, Strike, Pre)
 	,Document
 	,wikiParser
+	,htmlOutput
 
 ) where
 
@@ -28,6 +29,9 @@ class Backend a where
 	--Keyword -> Full text -> id
 	update :: a -> String -> String -> String -> String -> IO String
 
+	--[Keyword]
+	listKeys :: a -> IO [String]
+
 data Markup = Text String
 	| Paragraph 
 	| Link String String
@@ -37,6 +41,7 @@ data Markup = Text String
 	| Url String
 	| Underline [Markup]
 	| Strike [Markup]
+	| Pre String
 
 type Document = [Markup]
 
@@ -111,10 +116,16 @@ pURL = do
 	string "://"
 	s <- many1 (alphaNum <|> oneOf "?.:&-/")
 	return (Url (proto++"://"++s))
+
+pPre = do
+	string "<pre>"
+	s <- pString "</pre>"
+	return (Pre s)
 	
 pMain = try (pHeading)
 	<|> (try (pPara) 
 	<|> pSpace 
+	<|> try(pPre) 
 	<|> try(pBold) 
 	<|> try(pEmph) 
 	<|> try(pUnderline) 
@@ -183,9 +194,34 @@ instance Backend PGB where
 				[[id]] <- selectReturnTuples db $ "SELECT currval('fulltexts_id_seq')" 
 				setCurrent (PGB db) key id
 				return id
+
+	listKeys (PGB db) = do
+		list <- selectReturnTuples db $ "SELECT keyword FROM fulltexts GROUP BY keyword ORDER BY lower(keyword)"
+		case list of
+			[[]] -> return []
+			_ -> mapM (\[key] -> return key) list
+		
 			
 
 tov :: String -> String
 tov s = '\'':escapeQuery s++"'"
 		
-
+toHtml :: [Markup] -> String
+toHtml [] = []
+toHtml ((Paragraph):xs) = "<p>\n"++toHtml xs
+toHtml ((Text s):xs) = s++toHtml xs
+toHtml ((Link l d):xs) = "<link: "++l++" desc: "++d++">"++toHtml xs
+toHtml ((Bold d):xs) = "<b>"++toHtml d++"</b>"++toHtml xs
+toHtml ((Emph d):xs) = "<em>"++toHtml d++"</em>"++toHtml xs
+toHtml ((Underline d):xs) = "<u>"++toHtml d++"</u>"++toHtml xs
+toHtml ((Strike d):xs) = "<strike>"++toHtml d++"</strike>"++toHtml xs
+toHtml ((Heading n d):xs) = "\n<h"++show n++">"++toHtml d++"</h"++show n++">\n"++toHtml xs
+toHtml ((Url l):xs) = "<link: "++l++">"++toHtml xs
+toHtml ((Pre s):xs) = "<pre>"++s++"</pre>"++toHtml xs
+
+
+htmlOutput s = case parse wikiParser "" s of
+					Right n -> do 
+						putStr (toHtml n)
+					Left e -> do
+						print e