    {- This module was generated from data in the Kate syntax highlighting file eiffel.xml, version 1.02,
       by  Sebastian Vuorinen -}

    module Text.Highlighting.Kate.Syntax.Eiffel ( highlight, parseExpression, syntaxName, syntaxExtensions ) where
    import Text.Highlighting.Kate.Definitions
    import Text.Highlighting.Kate.Common
    import Text.ParserCombinators.Parsec
    import Control.Monad (when)
    import Data.Map (fromList)
    import Data.Maybe (fromMaybe, maybeToList)

    import qualified Data.Set as Set
    -- | Full name of language.
    syntaxName :: String
    syntaxName = "Eiffel"

    -- | Filename extensions for this language.
    syntaxExtensions :: String
    syntaxExtensions = "*.e"

    -- | Highlight source code using this syntax definition.
    highlight :: String -> Either String [SourceLine]
    highlight input =
      case runParser parseSource startingState "source" input of
        Left err     -> Left $ show err
        Right result -> Right result

    -- | Parse an expression using appropriate local context.
    parseExpression :: GenParser Char SyntaxState LabeledSource
    parseExpression = do
      st <- getState
      let oldLang = synStLanguage st
      setState $ st { synStLanguage = "Eiffel" }
      context <- currentContext <|> (pushContext "Normal" >> currentContext)
      result <- parseRules context
      updateState $ \st -> st { synStLanguage = oldLang }
      return result

    parseSource = do
      lineContents <- lookAhead wholeLine
      updateState $ \st -> st { synStCurrentLine = lineContents }
      result <- manyTill parseSourceLine eof
      return $ map normalizeHighlighting result

    startingState = SyntaxState {synStContexts = fromList [("Eiffel",["Normal"])], synStLanguage = "Eiffel", synStCurrentLine = "", synStCharsParsedInLine = 0, synStPrevChar = '\n', synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}

    parseSourceLine = manyTill parseExpressionInternal pEndLine

    pEndLine = do
      newline <|> (eof >> return '\n')
      context <- currentContext
      case context of
        "Normal" -> return ()
        "Quoted String" -> (popContext >> return ())
        "Documentation" -> (popContext >> return ())
        _ -> return ()
      lineContents <- lookAhead wholeLine
      updateState $ \st -> st { synStCurrentLine = lineContents, synStCharsParsedInLine = 0, synStPrevChar = '\n' }

    withAttribute attr txt = do
      when (null txt) $ fail "Parser matched no text"
      let labs = attr : maybeToList (lookup attr styles)
      st <- getState
      let oldCharsParsed = synStCharsParsedInLine st
      let prevchar = if null txt then '\n' else last txt
      updateState $ \st -> st { synStCharsParsedInLine = oldCharsParsed + length txt, synStPrevChar = prevchar }
      return (labs, txt)

    styles = [("Keyword","kw"),("Predefined entities","ot"),("Assertions","ot"),("Decimal","dv"),("Float","fl"),("Char","ch"),("String","st"),("Comment","co")]

    parseExpressionInternal = do
      context <- currentContext
      parseRules context <|> (pDefault >>= withAttribute (fromMaybe "" $ lookup context defaultAttributes))

    list_keywords = Set.fromList $ words $ "agent alias all and as assign class convert create creation debug deferred do else elseif end expanded export external feature from frozen if implies indexing infix inherit inspect is like local loop not obsolete old once or prefix pure redefine reference rename rescue retry separate then undefine"
    list_predefined'2dentities = Set.fromList $ words $ "Current False Precursor Result True TUPLE"
    list_assertions = Set.fromList $ words $ "check ensure require variant invariant"

    defaultAttributes = [("Normal","Normal Text"),("Quoted String","String"),("Documentation","Comment")]

    parseRules "Normal" =
      do (attr, result) <- (((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_keywords >>= withAttribute "Keyword"))
                            <|>
                            ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_predefined'2dentities >>= withAttribute "Predefined entities"))
                            <|>
                            ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_assertions >>= withAttribute "Assertions"))
                            <|>
                            ((pInt >>= withAttribute "Decimal"))
                            <|>
                            ((pFloat >>= withAttribute "Float"))
                            <|>
                            ((pHlCChar >>= withAttribute "Char"))
                            <|>
                            ((pDetectChar False '"' >>= withAttribute "String") >>~ pushContext "Quoted String")
                            <|>
                            ((pDetect2Chars False '-' '-' >>= withAttribute "Comment") >>~ pushContext "Documentation"))
         return (attr, result)

    parseRules "Quoted String" =
      do (attr, result) <- ((pDetectChar False '"' >>= withAttribute "String") >>~ (popContext >> return ()))
         return (attr, result)

    parseRules "Documentation" =
      pzero

    parseRules x = fail $ "Unknown context" ++ x