{- This module was generated from data in the Kate syntax highlighting file pascal.xml, version 1.21,
   by   -}

module Text.Highlighting.Kate.Syntax.Pascal ( highlight, parseExpression, syntaxName, syntaxExtensions ) where
import Text.Highlighting.Kate.Definitions
import Text.Highlighting.Kate.Common
import Text.ParserCombinators.Parsec
import Data.List (nub)
import qualified Data.Set as Set
import Data.Map (fromList)
import Data.Maybe (fromMaybe)

-- | Full name of language.
syntaxName :: String
syntaxName = "Pascal"

-- | Filename extensions for this language.
syntaxExtensions :: String
syntaxExtensions = "*.pp;*.pas;*.p"

-- | 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 = "Pascal" }
  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 [("Pascal",["Normal"])], synStLanguage = "Pascal", synStCurrentLine = "", synStCharsParsedInLine = 0, synStPrevChar = '\n', synStCaseSensitive = True, synStKeywordCaseSensitive = False, synStCaptures = []}

parseSourceLine = manyTill parseExpressionInternal pEndLine

pEndLine = do
  newline <|> (eof >> return '\n')
  context <- currentContext
  case context of
    "Normal" -> return ()
    "String" -> (popContext >> return ())
    "Prep1" -> (popContext >> return ())
    "Prep2" -> (popContext >> return ())
    "Comment1" -> return ()
    "Comment2" -> return ()
    "Comment3" -> (popContext >> return ())
    _ -> return ()
  lineContents <- lookAhead wholeLine
  updateState $ \st -> st { synStCurrentLine = lineContents, synStCharsParsedInLine = 0, synStPrevChar = '\n' }

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
  let prevchar = if null txt then '\n' else last txt
  updateState $ \st -> st { synStCharsParsedInLine = oldCharsParsed + length txt, synStPrevChar = prevchar } 
  return (nub [style, attr], txt)

styles = [("Normal Text","Normal"),("Keyword","Keyword"),("ISO/Delphi Extended","Keyword"),("Type","DataType"),("Number","DecVal"),("String","String"),("Directive","Others"),("Comment","Comment"),("Alert","Alert")]

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

list231d267383e39ad301a296ea014ee7b76a297476 = Set.fromList $ words $ "and array asm case const div do downto else file for function goto if in label mod nil not of operator or packed procedure program record repeat set then to type unit until uses var while with xor at automated break continue dispinterface dispose exit false finalization initialization library new published resourcestring self true"
list9e6abdbdc7523a8b842f7348f1b8466c6724275b = Set.fromList $ words $ "abstract as bindable constructor destructor except export finally import implementation inherited inline interface is module on only otherwise override private property protected public read qualified raise restricted shl shr threadvar try virtual write"
listd2c9a34f3d7cc7512faee1333aa09a4fa6a42ee5 = Set.fromList $ words $ "integer cardinal shortint smallint longint int64 byte word longword char ansichar widechar boolean bytebool wordbool longbool single double extended comp currency real real48 string shortstring ansistring widestring pointer variant file text"
list1992482128d6da8a5d77fcb29071edaf099e7364 = Set.fromList $ words $ "fixme todo ###"

defaultAttributes = [("Normal","Normal Text"),("String","String"),("Prep1","Directive"),("Prep2","Directive"),("Comment1","Comment"),("Comment2","Comment"),("Comment3","Comment")]

parseRules "Normal" = 
  do (attr, result) <- (((pRegExpr (compileRegex "\\b(begin|case|record)(?=(\\{[^}]*(\\}|$)|\\(\\*.*(\\*\\)|$))*([\\s]|$|//))") >>= withAttribute "Keyword"))
                        <|>
                        ((pRegExpr (compileRegex "\\b((object|class)(?=(\\(.*\\))?(\\{[^}]*(\\}|$)|\\(\\*.*(\\*\\)|$))*;?([\\s]|$|//))|try(?=(\\{[^}]*(\\}|$)|\\(\\*.*(\\*\\)|$))*([\\s]|$|//)))") >>= withAttribute "ISO/Delphi Extended"))
                        <|>
                        ((pRegExpr (compileRegex "\\bend(?=((\\{[^}]*(\\}|$)|\\(\\*.*(\\*\\)|$))*)([.;\\s]|$)|//|$)") >>= withAttribute "Keyword"))
                        <|>
                        ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list231d267383e39ad301a296ea014ee7b76a297476 >>= withAttribute "Keyword"))
                        <|>
                        ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list9e6abdbdc7523a8b842f7348f1b8466c6724275b >>= withAttribute "ISO/Delphi Extended"))
                        <|>
                        ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" listd2c9a34f3d7cc7512faee1333aa09a4fa6a42ee5 >>= withAttribute "Type"))
                        <|>
                        ((pFloat >>= withAttribute "Number"))
                        <|>
                        ((pInt >>= withAttribute "Number"))
                        <|>
                        ((pDetectChar False '\'' >>= withAttribute "String") >>~ pushContext "String")
                        <|>
                        ((pString False "(*$" >>= withAttribute "Directive") >>~ pushContext "Prep1")
                        <|>
                        ((pDetect2Chars False '{' '$' >>= withAttribute "Directive") >>~ pushContext "Prep2")
                        <|>
                        ((pDetectChar False '{' >>= withAttribute "Comment") >>~ pushContext "Comment1")
                        <|>
                        ((pDetect2Chars False '(' '*' >>= withAttribute "Comment") >>~ pushContext "Comment2")
                        <|>
                        ((pDetect2Chars False '/' '/' >>= withAttribute "Comment") >>~ pushContext "Comment3"))
     return (attr, result)

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

parseRules "Prep1" = 
  do (attr, result) <- ((pDetect2Chars False '*' ')' >>= withAttribute "Directive") >>~ (popContext >> return ()))
     return (attr, result)

parseRules "Prep2" = 
  do (attr, result) <- ((pDetectChar False '}' >>= withAttribute "Directive") >>~ (popContext >> return ()))
     return (attr, result)

parseRules "Comment1" = 
  do (attr, result) <- (((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list1992482128d6da8a5d77fcb29071edaf099e7364 >>= withAttribute "Alert"))
                        <|>
                        ((pDetectChar False '}' >>= withAttribute "Comment") >>~ (popContext >> return ())))
     return (attr, result)

parseRules "Comment2" = 
  do (attr, result) <- (((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list1992482128d6da8a5d77fcb29071edaf099e7364 >>= withAttribute "Alert"))
                        <|>
                        ((pDetect2Chars False '*' ')' >>= withAttribute "Comment") >>~ (popContext >> return ())))
     return (attr, result)

parseRules "Comment3" = 
  do (attr, result) <- ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list1992482128d6da8a5d77fcb29071edaf099e7364 >>= withAttribute "Alert"))
     return (attr, result)

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