X-Git-Url: https://ruin.nu/git/?a=blobdiff_plain;f=Wiki.hs;h=5e75da1958e2c494a7ac6e643c939e4c28c4f366;hb=refs%2Fheads%2Fmaster;hp=1371c453e597351ede57c674fb807afb993ecd5b;hpb=0fa0fc355546141e597b7c483f8c6b9e54ac17ce;p=yawbih.git

diff --git a/Wiki.hs b/Wiki.hs
index 1371c45..5e75da1 100644
--- a/Wiki.hs
+++ b/Wiki.hs
@@ -2,10 +2,12 @@ module Wiki (
 	Backend (getCurrent,getList,get,setCurrent,update,listKeys)
 	,PGB
 	,createPGB
-	,Markup (Text, Paragraph, Link, Bold, Emph, Heading, Url, Underline, Strike, Pre,List)
+	,Markup (Text, Paragraph, Font, Link, Heading, Url, Pre,List)
+	,FontOp (Bold, Emph, Mono, Underline, Strike)
 	,Document
 	,wikiParser
-	,htmlOutput
+	,toHtml
+	,toLatex
 
 ) where
 
@@ -35,24 +37,28 @@ 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
-	| List [[Markup]]
+	| 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 = count 2 pEol >> return (Paragraph)
+firstInLineChars = "#*="
+
+pPara :: Parser Markup	
+pPara = do 
+	count 2 pEol 
+	notFollowedBy $ oneOf firstInLineChars 
+	return (Paragraph)
 
-pLink :: GenParser Char st Markup	
+pLink :: Parser Markup	
 pLink = do
 	string "[["
 	(l,d) <- pLinkContent
@@ -60,33 +66,40 @@ pLink = do
 		[] -> return (Link l l)
 		_ -> return (Link l d)
 
-pList :: GenParser Char st Markup
-pList = do
-	list <- many1 $ try pListItem 
-	return (List list)
+pList :: Bool -> Parser Markup
+pList enum = do
+	list <- many1 $ try $ pListItem enum
+	return (List enum list)
+
+pListItem :: Bool -> Parser [Markup]
+pListItem enum = do
+	pEol
+	char $ listToken enum
+	many (pOneLine <|> try (pOneEol))
+
+pOneEol = do 
+	c <- pEol
+	notFollowedBy (oneOf $ firstInLineChars++"\r\n")
+	return c
 
-pListItem :: GenParser Char st [Markup]
-pListItem = do
-	many1 pEol
-	char '*'
-	many pOneLine
+listToken True = '#'
+listToken False = '*'
 	
-pHeading :: GenParser Char st Markup	
+pHeading :: Parser Markup	
 pHeading = do
-	many1 pEol
+	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))
 
-pMail :: GenParser Char st Markup
+pMail :: Parser Markup
 pMail = do
 	user <- many1 (alphaNum <|> oneOf ".-_")
 	char '@'
@@ -94,31 +107,33 @@ pMail = do
 	return (Url ("mailto:"++user++"@"++server))
 	
 
-pPre :: GenParser Char st Markup	
+pPre :: Parser Markup	
 pPre = string "<pre>" >> do
-	s <- pString "</pre>"
+	s <- pUntil (pOneLine <|> pEol) "</pre>"
 	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 <- 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 " | "
@@ -129,30 +144,32 @@ pLinkContent = do try (string "]]" >> return ([],[]))
 		(l,d) <- pLinkContent
 		return (c:l,d))
 
-pStopAt :: String -> GenParser Char st Document	
+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 Markup	
+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
+	,try $ pList True
+	,try $ pList False
 	,try (pPara) 
 	,try(pPre) 
 	,try(pBold) 
 	,try(pEmph) 
 	,try(pUnderline) 
 	,try(pStrike) 
+	,try(pMono) 
 	,try (pLink)
 	,try (pURL)
 	,try (pMail)
@@ -166,6 +183,7 @@ pOneLine = choice [
 	,try pEmph
 	,try pUnderline
 	,try pStrike
+	,try pMono
 	,try pLink
 	,try pURL
 	,try pMail
@@ -235,15 +253,44 @@ 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 ((Font o d):xs) = "<"++htmlFontOp o++">"++toHtml d++"</"++htmlFontOp o++">"++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
-toHtml ((List l):xs) = "<ul>\n"++(unlines $ map (\s -> "<li>"++toHtml s++"</li>\n") l) ++ "</ul>"++toHtml xs
-
-htmlOutput s = case parse wikiParser "" s of
-					Right n -> putStr (toHtml n)
+toHtml ((Pre s):xs) = "<pre>"++toHtml s++"</pre>"++toHtml xs
+toHtml ((List o l):xs) = "<"++htmlListType o++">\n"++(unlines $ map (\s -> "<li>"++toHtml s++"</li>\n") l) ++ "</"++htmlListType o++">"++toHtml xs
+
+htmlFontOp Bold = "b"
+htmlFontOp Emph = "em"
+htmlFontOp Mono = "tt"
+htmlFontOp Underline = "u"
+htmlFontOp Strike = "strike"
+
+htmlListType True = "ol"
+htmlListType False = "ul"
+
+toLatex :: [Markup] -> String
+toLatex [] = []
+toLatex ((Paragraph):xs) = "\n\n"++toLatex xs
+toLatex ((Text s):xs) = s++toLatex xs
+toLatex ((Link l d):xs) = "{\\em "++d++"}"++toLatex xs
+toLatex ((Font o d):xs) = "{\\"++latexFontOp o++" "++toLatex d++"}"++toHtml xs
+toLatex ((Heading n d):xs) = "\n\\"++(unwords $ take (n-1) $ repeat "sub")++"section{"++toLatex d++"}"++"\n\n"++toLatex xs
+toLatex ((Url l):xs) = "{\\bf "++l++"}"++toLatex xs
+toLatex ((Pre s):xs) = "<pre>"++toLatex s++"</pre>"++toLatex xs
+toLatex ((List o l):xs) = "\n\\begin{"++latexListType o++"}\n"++(unlines $ map (\s -> "\\item "++toLatex s++"\n") l) ++ "\\end{"++latexListType o++"}"++toLatex xs
+
+latexFontOp Bold = "bf"
+latexFontOp Emph = "em"
+latexFontOp Mono = "tt"
+latexFontOp Underline = "u"
+latexFontOp Strike = "strike"
+
+latexListType True = "enumeration"
+latexListType False = "itemize"
+
+output s f = case parse wikiParser "" s of
+					Right n -> putStr (f n)
 					Left e -> print e
+
+htmlOutput s = output s toHtml
+latexOutput s = output s toLatex