    {- 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 Data.List (nub)
    import Data.Map (fromList)
    import Data.Maybe (fromMaybe)

    -- | 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, 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 }

    withAttribute attr txt = do
      if null txt
         then fail "Parser matched no text"
         else return ()
      let style = fromMaybe "" $ lookup attr styles
      st <- getState
      let oldCharsParsed = synStCharsParsedInLine st
      updateState $ \st -> st { synStCharsParsedInLine = oldCharsParsed + length txt }
      return (nub [style, attr], txt)

    styles = [("Normal Text","Normal"),("Keyword","Keyword"),("Predefined entities","Others"),("Assertions","Others"),("Decimal","DecVal"),("Float","Float"),("Char","Char"),("String","String"),("Comment","Comment")]

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

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

    parseRules "Normal" =
      do (attr, result) <- (((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["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"] >>= withAttribute "Keyword"))
                            <|>
                            ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["Current","False","Precursor","Result","True","TUPLE"] >>= withAttribute "Predefined entities"))
                            <|>
                            ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["check","ensure","require","variant","invariant"] >>= 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