X-Git-Url: https://ruin.nu/git/?a=blobdiff_plain;f=Wiki.hs;h=94f4a5f433000c2a86cbd8eb19cc7ca1f8dffb8d;hb=625a2981711271d1f5841c55978d69881d6054da;hp=37b43112fd856a35736c9b5dcd21aa9cd0fd0f92;hpb=01c59ac502d71c3c1ccac422b5665f9e5954a190;p=yawbih.git diff --git a/Wiki.hs b/Wiki.hs index 37b4311..94f4a5f 100644 --- a/Wiki.hs +++ b/Wiki.hs @@ -2,7 +2,8 @@ module Wiki ( Backend (getCurrent,getList,get,setCurrent,update,listKeys) ,PGB ,createPGB - ,Markup (Text, Paragraph, Link, Bold, Emph, Heading, Url, Underline, Strike, Pre) + ,Markup (Text, Paragraph, Font, Link, Heading, Url, Pre,List) + ,FontOp (Bold, Emph, Mono, Underline, Strike) ,Document ,wikiParser ,htmlOutput @@ -35,28 +36,23 @@ class Backend a where data Markup = Text String | Paragraph | Link String String - | Bold [Markup] - | Emph [Markup] + | Font FontOp [Markup] | Heading Int [Markup] | Url String - | Underline [Markup] - | Strike [Markup] - | Pre String + | Pre [Markup] + | List Bool [[Markup]] + +data FontOp = Bold | Emph | Mono | Underline | Strike type Document = [Markup] -wikiParser :: GenParser Char st Document +wikiParser :: Parser Document wikiParser = many1 pMain -pPara :: GenParser Char st Markup +pPara :: Parser Markup pPara = count 2 pEol >> return (Paragraph) -pSpace :: GenParser Char st Markup -pSpace = do - c <- space - return (Text (c:[])) - -pLink :: GenParser Char st Markup +pLink :: Parser Markup pLink = do string "[[" (l,d) <- pLinkContent @@ -64,46 +60,69 @@ pLink = do [] -> return (Link l l) _ -> return (Link l d) -pHeading :: GenParser Char st Markup +pList :: Bool -> Parser Markup +pList enum = do + list <- many1 $ try $ pListItem enum + return (List enum list) + +pListItem :: Bool -> Parser [Markup] +pListItem enum = do + many1 pEol + char $ listToken enum + many pOneLine + +listToken True = '#' +listToken False = '*' + +pHeading :: Parser Markup pHeading = do many1 pEol level <- many1 $ char '=' - char ' ' - s <- pStopAt (' ':level) + s <- pStopAt level return (Heading (length level) s) -pURL :: GenParser Char st Markup +pURL :: Parser Markup pURL = do proto <- many1 letter string "://" - s <- many1 (alphaNum <|> oneOf "?.:&-/") + s <- many1 (alphaNum <|> oneOf "?.:&-/~%=\\_") return (Url (proto++"://"++s)) -pPre :: GenParser Char st Markup +pMail :: Parser Markup +pMail = do + user <- many1 (alphaNum <|> oneOf ".-_") + char '@' + server <- many1 (alphaNum <|> oneOf ".-_") + return (Url ("mailto:"++user++"@"++server)) + + +pPre :: Parser Markup pPre = string "
" >> do
-	s <- pString "
" + s <- pUntil (pOneLine <|> pEol) "" return (Pre s) -pBold,pEmph,pUnderline,pStrike :: GenParser Char st Markup -pBold = pS "**" (\s -> Bold s) -pEmph = pS "//" (\s -> Emph s) -pUnderline = pS "__" (\s -> Underline s) -pStrike = pS "--" (\s -> Strike s) -pS s f = string s >> do +pBold,pEmph,pUnderline,pStrike :: Parser Markup +pBold = pFont "**" Bold +pEmph = pFont "//" Emph +pUnderline = pFont "__" Underline +pStrike = pFont "--" Strike +pMono = pFont "||" Mono + +pFont s o = string s >> do s <- pStopAt s - return (f s) + return (Font o s) -pOtherChar :: GenParser Char st Markup +pOtherChar :: Parser Markup pOtherChar = do - c <- oneOf "*,;.:!?[]()'\"=-%$£<>/\\|" + c <- noneOf "\n\r" return (Text (c:[])) -pText :: GenParser Char st Markup +pText :: Parser Markup pText = do t <- many1 alphaNum return (Text t) -pLinkContent :: GenParser Char st (String, String) +pLinkContent :: Parser (String, String) pLinkContent = do try (string "]]" >> return ([],[])) <|> try (do string " | " @@ -114,32 +133,51 @@ pLinkContent = do try (string "]]" >> return ([],[])) (l,d) <- pLinkContent return (c:l,d)) -pStopAt :: String -> GenParser Char st Document -pStopAt xs = pUntil pMain xs +pStopAt :: String -> Parser Document +pStopAt xs = pUntil pOneLine xs -pString :: String -> GenParser Char st String +pString :: String -> Parser String pString xs = pUntil anyChar xs -pEol :: GenParser Char st String -pEol = string "\n" <|> string "\r\n" +pEol :: Parser Markup +pEol = do + (string "\n" <|> string "\r\n") + return (Text "\r\n") -pUntil :: GenParser Char st a -> String -> GenParser Char st [a] +pUntil :: Parser a -> String -> Parser [a] pUntil p xs = manyTill p (try $ string xs) -pMain :: GenParser Char st Markup +pMain :: Parser Markup pMain = choice [ try (pHeading) + ,try $ pList True + ,try $ pList False ,try (pPara) - ,pSpace ,try(pPre) ,try(pBold) ,try(pEmph) ,try(pUnderline) ,try(pStrike) + ,try(pMono) ,try (pLink) ,try (pURL) + ,try (pMail) + ,pText ,pOtherChar + ,pEol + ] + +pOneLine = choice [ + try pBold + ,try pEmph + ,try pUnderline + ,try pStrike + ,try pMono + ,try pLink + ,try pURL + ,try pMail ,pText + ,pOtherChar ] newtype PGB = PGB DBService @@ -204,13 +242,20 @@ toHtml [] = [] toHtml ((Paragraph):xs) = "

\n"++toHtml xs toHtml ((Text s):xs) = s++toHtml xs toHtml ((Link l d):xs) = ""++toHtml xs -toHtml ((Bold d):xs) = ""++toHtml d++""++toHtml xs -toHtml ((Emph d):xs) = ""++toHtml d++""++toHtml xs -toHtml ((Underline d):xs) = ""++toHtml d++""++toHtml xs -toHtml ((Strike d):xs) = ""++toHtml d++""++toHtml xs +toHtml ((Font o d):xs) = "<"++fontOp o++">"++toHtml d++""++toHtml xs toHtml ((Heading n d):xs) = "\n"++toHtml d++"\n"++toHtml xs toHtml ((Url l):xs) = ""++toHtml xs -toHtml ((Pre s):xs) = "

"++s++"
"++toHtml xs +toHtml ((Pre s):xs) = "
"++toHtml s++"
"++toHtml xs +toHtml ((List o l):xs) = "<"++listType o++">\n"++(unlines $ map (\s -> "
  • "++toHtml s++"
  • \n") l) ++ ""++toHtml xs + +listType True = "ol" +listType False = "ul" + +fontOp Bold = "b" +fontOp Emph = "em" +fontOp Mono = "tt" +fontOp Underline = "u" +fontOp Strike = "strike" htmlOutput s = case parse wikiParser "" s of Right n -> putStr (toHtml n)