module Text.Highlighting.Kate.Syntax.Xorg
(highlight, parseExpression, syntaxName, syntaxExtensions)
where
import Text.Highlighting.Kate.Types
import Text.Highlighting.Kate.Common
import qualified Text.Highlighting.Kate.Syntax.Alert
import Text.ParserCombinators.Parsec hiding (State)
import Control.Monad.State
import Data.Char (isSpace)
syntaxName :: String
syntaxName = "x.org Configuration"
syntaxExtensions :: String
syntaxExtensions = "xorg.conf"
highlight :: String -> [SourceLine]
highlight input = evalState (mapM parseSourceLine $ lines input) startingState
parseSourceLine :: String -> State SyntaxState SourceLine
parseSourceLine = mkParseSourceLine (parseExpression Nothing)
parseExpression :: Maybe (String,String)
-> KateParser Token
parseExpression mbcontext = do
(lang,cont) <- maybe currentContext return mbcontext
result <- parseRules (lang,cont)
optional $ do eof
updateState $ \st -> st{ synStPrevChar = '\n' }
pEndLine
return result
startingState = SyntaxState {synStContexts = [("x.org Configuration","xorg")], synStLineNumber = 0, synStPrevChar = '\n', synStPrevNonspace = False, synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}
pEndLine = do
updateState $ \st -> st{ synStPrevNonspace = False }
context <- currentContext
contexts <- synStContexts `fmap` getState
if length contexts >= 2
then case context of
("x.org Configuration","xorg") -> return ()
("x.org Configuration","Section") -> return ()
("x.org Configuration","Section Content") -> return ()
("x.org Configuration","Keyword") -> (popContext) >> pEndLine
("x.org Configuration","Comment") -> (popContext) >> pEndLine
_ -> return ()
else return ()
withAttribute attr txt = do
when (null txt) $ fail "Parser matched no text"
updateState $ \st -> st { synStPrevChar = last txt
, synStPrevNonspace = synStPrevNonspace st || not (all isSpace txt) }
return (attr, txt)
regex_'5cb'5cw'2b'5cb = compileRegex "\\b\\w+\\b"
regex_'5b'5cw'5cd'5d'2b = compileRegex "[\\w\\d]+"
parseRules ("x.org Configuration","xorg") =
(((pString False "Section" >>= withAttribute FunctionTok) >>~ pushContext ("x.org Configuration","Section"))
<|>
((pDetectChar False '#' >>= withAttribute NormalTok) >>~ pushContext ("x.org Configuration","Comment"))
<|>
(currentContext >>= \x -> guard (x == ("x.org Configuration","xorg")) >> pDefault >>= withAttribute NormalTok))
parseRules ("x.org Configuration","Section") =
(((pRangeDetect '"' '"' >>= withAttribute StringTok) >>~ pushContext ("x.org Configuration","Section Content"))
<|>
((pRangeDetect '\'' '\'' >>= withAttribute StringTok) >>~ pushContext ("x.org Configuration","Section Content"))
<|>
((pDetectIdentifier >>= withAttribute ErrorTok))
<|>
((pDetectChar False '#' >>= withAttribute NormalTok) >>~ pushContext ("x.org Configuration","Comment"))
<|>
(currentContext >>= \x -> guard (x == ("x.org Configuration","Section")) >> pDefault >>= withAttribute NormalTok))
parseRules ("x.org Configuration","Section Content") =
(((pString False "EndSection" >>= withAttribute FunctionTok) >>~ (popContext >> popContext))
<|>
((pString False "EndSubSection" >>= withAttribute FunctionTok) >>~ (popContext >> popContext))
<|>
((pString False "SubSection" >>= withAttribute FunctionTok) >>~ pushContext ("x.org Configuration","Section"))
<|>
((pRegExpr regex_'5cb'5cw'2b'5cb >>= withAttribute NormalTok) >>~ pushContext ("x.org Configuration","Keyword"))
<|>
((pDetectChar False '#' >>= withAttribute NormalTok) >>~ pushContext ("x.org Configuration","Comment"))
<|>
(currentContext >>= \x -> guard (x == ("x.org Configuration","Section Content")) >> pDefault >>= withAttribute NormalTok))
parseRules ("x.org Configuration","Keyword") =
(((pRangeDetect '"' '"' >>= withAttribute DataTypeTok))
<|>
((pRangeDetect '\'' '\'' >>= withAttribute DataTypeTok))
<|>
((pFloat >>= withAttribute FloatTok))
<|>
((pInt >>= withAttribute DecValTok))
<|>
((pRegExpr regex_'5b'5cw'5cd'5d'2b >>= withAttribute OtherTok))
<|>
((pDetectChar False '#' >>= withAttribute KeywordTok) >>~ pushContext ("x.org Configuration","Comment"))
<|>
(currentContext >>= \x -> guard (x == ("x.org Configuration","Keyword")) >> pDefault >>= withAttribute KeywordTok))
parseRules ("x.org Configuration","Comment") =
(((pDetectSpaces >>= withAttribute CommentTok))
<|>
((Text.Highlighting.Kate.Syntax.Alert.parseExpression (Just ("Alerts","")) >>= ((withAttribute CommentTok) . snd)))
<|>
((pDetectIdentifier >>= withAttribute CommentTok))
<|>
(currentContext >>= \x -> guard (x == ("x.org Configuration","Comment")) >> pDefault >>= withAttribute CommentTok))
parseRules ("Alerts", _) = Text.Highlighting.Kate.Syntax.Alert.parseExpression Nothing
parseRules x = parseRules ("x.org Configuration","xorg") <|> fail ("Unknown context" ++ show x)