    {- This module was generated from data in the Kate syntax highlighting file matlab.xml, version 1.20,
       by   -}

    module Text.Highlighting.Kate.Syntax.Matlab ( 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 = "Matlab"

    -- | Filename extensions for this language.
    syntaxExtensions :: String
    syntaxExtensions = "*.m;*.M"

    -- | 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 = "Matlab" }
      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 [("Matlab",["_normal"])], synStLanguage = "Matlab", synStCurrentLine = "", synStCharsParsedInLine = 0, synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}

    parseSourceLine = manyTill parseExpressionInternal pEndLine

    pEndLine = do
      newline <|> (eof >> return '\n')
      context <- currentContext
      case context of
        "_normal" -> (popContext >> return ())
        "_adjoint" -> (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"),("Variable","Normal"),("Operator","Normal"),("Number","Float"),("Delimiter","Normal"),("String","String"),("System","BaseN"),("Incomplete String","Char"),("Keyword","Normal"),("Comment","Comment")]

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

    defaultAttributes = [("_normal","Normal Text"),("_adjoint","Operator")]

    parseRules "_normal" =
      do (attr, result) <- (((pRegExpr (compileRegex "[a-zA-Z]\\w*(?=')") >>= withAttribute "Variable") >>~ pushContext "_adjoint")
                            <|>
                            ((pRegExpr (compileRegex "(\\d+(\\.\\d+)?|\\.\\d+)([eE][+-]?\\d+)?[ij]?(?=')") >>= withAttribute "Number") >>~ pushContext "_adjoint")
                            <|>
                            ((pRegExpr (compileRegex "[\\)\\]}](?=')") >>= withAttribute "Delimiter") >>~ pushContext "_adjoint")
                            <|>
                            ((pRegExpr (compileRegex "\\.'(?=')") >>= withAttribute "Operator") >>~ pushContext "_adjoint")
                            <|>
                            ((pRegExpr (compileRegex "'[^']*(''[^']*)*'(?=[^']|$)") >>= withAttribute "String"))
                            <|>
                            ((pRegExpr (compileRegex "'[^']*(''[^']*)*") >>= withAttribute "Incomplete String"))
                            <|>
                            ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["break","case","catch","continue","else","elseif","end","for","function","global","if","otherwise","persistent","return","switch","try","while"] >>= withAttribute "Keyword"))
                            <|>
                            ((pRegExpr (compileRegex "%.*$") >>= withAttribute "Comment"))
                            <|>
                            ((pRegExpr (compileRegex "!.*$") >>= withAttribute "System"))
                            <|>
                            ((pRegExpr (compileRegex "[a-zA-Z]\\w*") >>= withAttribute "Variable"))
                            <|>
                            ((pRegExpr (compileRegex "(\\d+(\\.\\d+)?|\\.\\d+)([eE][+-]?\\d+)?[ij]?") >>= withAttribute "Number"))
                            <|>
                            ((pAnyChar "()[]{}" >>= withAttribute "Delimiter"))
                            <|>
                            ((pString False "..." >>= withAttribute "Operator"))
                            <|>
                            ((pString False "==" >>= withAttribute "Operator"))
                            <|>
                            ((pString False "~=" >>= withAttribute "Operator"))
                            <|>
                            ((pString False "<=" >>= withAttribute "Operator"))
                            <|>
                            ((pString False ">=" >>= withAttribute "Operator"))
                            <|>
                            ((pString False "&&" >>= withAttribute "Operator"))
                            <|>
                            ((pString False "||" >>= withAttribute "Operator"))
                            <|>
                            ((pString False ".*" >>= withAttribute "Operator"))
                            <|>
                            ((pString False ".^" >>= withAttribute "Operator"))
                            <|>
                            ((pString False "./" >>= withAttribute "Operator"))
                            <|>
                            ((pString False ".'" >>= withAttribute "Operator"))
                            <|>
                            ((pAnyChar "*+-/\\&|<>~^=,;:@" >>= withAttribute "Operator")))
         return (attr, result)

    parseRules "_adjoint" =
      do (attr, result) <- ((pRegExpr (compileRegex "'+") >>= withAttribute "Operator") >>~ (popContext >> return ()))
         return (attr, result)

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