+import Text.ParserCombinators.Parsec
+
+testDB = createPGB "wave" "wiki" "wiki" "12wiki34db"
+
+--main = start [] cgi
+
+main = do
+ db <- testDB
+ runWithHook [] (\(key:act) -> showPage db (filter (/= '\\') key)) $ showPage db "MainPage"
+
+ps a = standardQuery "Hello" a
+
+editPage db key = do
+ s <- io $ getCurrent db key
+ s' <- case s of
+ Nothing -> return ""
+ Just (x,_) -> return x
+ standardQuery key $ do
+ t <- p $ makeTextarea s' (attr_SS "rows" "10" ## attr_SS "cols" "75" ## attr_SS "colspan" "2")
+ p empty
+ text "Author: "
+ a <- textInputField (fieldSIZE 20)
+ p empty
+ text "Comment: "
+ c <- textInputField (fieldSIZE 20)
+ --p $ submit (F2 t a) testing (attr "value" "Send")
+ p $ defaultSubmit (F3 t a c) (savePage db key) (attr "value" "Send")
+ --submit0 (sp db key []) (attr "value" "Send1")
+
+
+savePage db key (F3 t a c) = do
+ io $ update db key fulltext author comment
+ showPage db key
+ where
+ fulltext = value t
+ author = value a
+ comment = value c
+
+showPage db key = do
+ s <- io $ getCurrent db key
+ standardQuery key $ do
+ case s of
+ Nothing -> text "No text added for this keyword"
+ Just (full, date) -> do
+ parseText full
+ p $ tt $ text $ "Last edited: "++date
+ footer db key
+
+parseText full = case parse wikiParser "" full of
+ Right n -> toWash n
+ Left e -> do
+ text "PARSE ERROR: "
+ text (show e)
+ p $ text full
+
+footer db key = do
+ hr empty
+ table $ tr $ do
+ td $ submitLink0 (showPage db "MainPage") (text "Back to main page")
+ when (e key) $ td $ submitLink0 (editPage db key) (text "Edit this keyword")
+ when (e key) $ td $ submitLink0 (listRevs db key) (text "List old versions")
+ td $ submitLink0 (listKeywords db) (text "List all keywords")
+ td $ text "Keyword: "
+ td $ activate (showPage db) textInputField empty
+
+e "" = False
+e _ = True
+
+listRevs db key = do
+ list <- io $ getList db key
+ standardQuery key $ do
+ table $ do
+ tr $ mapM (\header -> th (text header))
+ ["Id", "Date", "Author", "Comment"]
+ mapM (revRow db key) list
+ footer db key
+
+listKeywords db = do
+ list <- io $ listKeys db
+ standardQuery "List of keywords" $ do
+ table (do
+ tr $ th (text "Keyword")
+ mapM (\key -> tr $ td $ linkKey db key) list)
+ footer db ""
+
+linkKey db key = submitLink0 (showPage db key) (text key)
+
+revRow db key (id, date, author, comment) = tr $ do
+ td $ submitLink0 (showRev db key id) (text id)
+ td $ text date
+ td $ linkKey db author
+ td $ text comment
+
+showRev db key id = do
+ s <- io $ get db key id
+ standardQuery key $ do
+ case s of
+ Nothing -> text "No such revision"
+ Just s -> parseText s
+ p empty
+ submitLink0 (changeCurrent db key id) (text "Set this version as the current one")
+ footer db key
+changeCurrent db key id = do
+ b <- io $ setCurrent db key id
+ if b then showPage db key
+ else standardQuery key $ do
+ text "Could not set this revision as the current active one."
+ p empty
+ linkKey db key
+
+toWash [] = return ()
+toWash ((Paragraph):xs) = do
+ p empty
+ toWash xs
+toWash ((Text s):xs) = do
+ text s
+ toWash xs
+toWash ((Link l d):xs) = do
+ hlink (URL {unURL = ("wiki?"++l)}) (text d)
+ toWash xs
+toWash ((Bold d):xs) = do
+ b (toWash d)
+ toWash xs
+toWash ((Emph d):xs) = do
+ em (toWash d)
+ toWash xs
+toWash ((Underline d):xs) = do
+ u (toWash d)
+ toWash xs
+toWash ((Strike d):xs) = do
+ strike (toWash d)
+ toWash xs
+toWash ((Heading n d):xs) = do
+ heading n $ toWash d
+ toWash xs
+toWash ((Url l):xs) = do
+ hlink (URL {unURL = (l)}) (text l)
+ toWash xs
+toWash ((Pre s):xs) = do
+ pre $ text s
+ toWash xs
+
+heading 1 = h1
+heading 2 = h2
+heading 3 = h3
+heading 4 = h4
+heading 5 = h5
+heading 6 = h6