module Text.Highlighting.Kate.Syntax.Cpp ( highlight, parseExpression, syntaxName, syntaxExtensions ) where
import Text.Highlighting.Kate.Definitions
import Text.Highlighting.Kate.Common
import qualified Text.Highlighting.Kate.Syntax.Doxygen
import qualified Text.Highlighting.Kate.Syntax.Alert
import Text.ParserCombinators.Parsec
import Data.List (nub)
import Data.Map (fromList)
import Data.Maybe (fromMaybe)
syntaxName :: String
syntaxName = "C++"
syntaxExtensions :: String
syntaxExtensions = "*.c++;*.cxx;*.cpp;*.cc;*.C;*.h;*.hh;*.H;*.h++;*.hxx;*.hpp;*.hcc;*.moc"
highlight :: String -> Either String [SourceLine]
highlight input =
case runParser parseSource startingState "source" input of
Left err -> Left $ show err
Right result -> Right result
parseExpression :: GenParser Char SyntaxState LabeledSource
parseExpression = do
st <- getState
let oldLang = synStLanguage st
setState $ st { synStLanguage = "C++" }
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 [("C++",["Normal"])], synStLanguage = "C++", 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 ()
"String" -> (popContext >> return ())
"Region Marker" -> (popContext >> return ())
"Commentar 1" -> (popContext >> return ())
"Commentar 2" -> return ()
"AfterHash" -> (popContext >> return ())
"Preprocessor" -> (popContext >> return ())
"Define" -> (popContext >> return ())
"Commentar/Preprocessor" -> return ()
"Outscoped" -> return ()
"Outscoped intern" -> 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"),("Extensions","Keyword"),("Data Type","DataType"),("Decimal","DecVal"),("Octal","BaseN"),("Hex","BaseN"),("Float","Float"),("Char","Char"),("String","String"),("String Char","Char"),("Comment","Comment"),("Symbol","Normal"),("Preprocessor","Others"),("Prep. Lib","Others"),("Region Marker","RegionMarker"),("Error","Error")]
parseExpressionInternal = do
context <- currentContext
parseRules context <|> (pDefault >>= withAttribute (fromMaybe "" $ lookup context defaultAttributes))
defaultAttributes = [("Normal","Normal Text"),("String","String"),("Region Marker","Region Marker"),("Commentar 1","Comment"),("Commentar 2","Comment"),("AfterHash","Error"),("Preprocessor","Preprocessor"),("Define","Preprocessor"),("Commentar/Preprocessor","Comment"),("Outscoped","Comment"),("Outscoped intern","Comment")]
parseRules "Normal" =
do (attr, result) <- (((pDetectSpaces >>= withAttribute "Normal Text"))
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*if\\s+0") >>= withAttribute "Preprocessor") >>~ pushContext "Outscoped")
<|>
((pFirstNonSpace >> lookAhead (pDetectChar False '#') >> return ([],"") ) >>~ pushContext "AfterHash")
<|>
((pFirstNonSpace >> pString False "//BEGIN" >>= withAttribute "Region Marker") >>~ pushContext "Region Marker")
<|>
((pFirstNonSpace >> pString False "//END" >>= withAttribute "Region Marker") >>~ pushContext "Region Marker")
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["asm","break","case","catch","class","const_cast","continue","default","delete","do","dynamic_cast","else","enum","explicit","export","extern","false","friend","for","goto","if","inline","namespace","new","operator","private","protected","public","qobject_cast","reinterpret_cast","return","sizeof","static_cast","struct","switch","template","this","throw","true","try","typedef","typeid","type_info","typename","union","using","virtual","while","and","and_eq","bad_cast","bad_typeid","bitand","bitor","compl","not","not_eq","or","or_eq","xor","xor_eq","except","finally","xalloc"] >>= withAttribute "Keyword"))
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["K_DCOP","SLOT","SIGNAL","Q_CLASSINFO","Q_ENUMS","Q_EXPORT","Q_OBJECT","Q_OVERRIDE","Q_PROPERTY","Q_SETS","Q_SIGNALS","Q_SLOTS","Q_FOREACH","Q_DECLARE_FLAGS","Q_INIT_RESOURCE","Q_CLEANUP_RESOURCE","Q_GLOBAL_STATIC","Q_GLOBAL_STATIC_WITH_ARGS","Q_DECLARE_INTERFACE","Q_DECLARE_TYPEINFO","Q_DECLARE_SHARED","Q_DECLARE_FLAGS","Q_DECLARE_OPERATORS_FOR_FLAGS","Q_FOREVER","Q_DECLARE_PRIVATE","Q_DECLARE_PUBLIC","Q_D","Q_Q","Q_DISABLE_COPY","Q_INTERFACES","Q_FLAGS","Q_SCRIPTABLE","Q_INVOKABLE","Q_GADGET","Q_ARG","Q_RETURN_ARG","Q_ASSERT","Q_ASSERT_X","Q_PRIVATE_SLOT","Q_DECLARE_METATYPE","Q_NOREPLY","TRUE","FALSE","connect","disconnect","emit","signals","slots","foreach","forever"] >>= withAttribute "Extensions"))
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["auto","bool","char","const","double","float","int","long","mutable","register","short","signed","static","unsigned","void","volatile","uchar","uint","int8_t","int16_t","int32_t","int64_t","uint8_t","uint16_t","uint32_t","uint64_t","wchar_t"] >>= withAttribute "Data Type"))
<|>
((pHlCChar >>= withAttribute "Char"))
<|>
((pDetectChar False '"' >>= withAttribute "String") >>~ pushContext "String")
<|>
((pDetectIdentifier >>= withAttribute "Normal Text"))
<|>
(withChildren (pFloat >>= withAttribute "Float") ((pAnyChar "fF" >>= withAttribute "Float")))
<|>
((pHlCOct >>= withAttribute "Octal"))
<|>
((pHlCHex >>= withAttribute "Hex"))
<|>
(withChildren (pInt >>= withAttribute "Decimal") (((pString False "ULL" >>= withAttribute "Decimal"))
<|>
((pString False "LUL" >>= withAttribute "Decimal"))
<|>
((pString False "LLU" >>= withAttribute "Decimal"))
<|>
((pString False "UL" >>= withAttribute "Decimal"))
<|>
((pString False "LU" >>= withAttribute "Decimal"))
<|>
((pString False "LL" >>= withAttribute "Decimal"))
<|>
((pString False "U" >>= withAttribute "Decimal"))
<|>
((pString False "L" >>= withAttribute "Decimal"))))
<|>
((Text.Highlighting.Kate.Syntax.Doxygen.parseExpression >>= ((withAttribute "") . snd)))
<|>
((pDetect2Chars False '/' '/' >>= withAttribute "Comment") >>~ pushContext "Commentar 1")
<|>
((pDetect2Chars False '/' '*' >>= withAttribute "Comment") >>~ pushContext "Commentar 2")
<|>
((pDetectChar False '{' >>= withAttribute "Symbol"))
<|>
((pDetectChar False '}' >>= withAttribute "Symbol"))
<|>
((pAnyChar ":!%&()+,-/.*<=>?[]{|}~^;" >>= withAttribute "Symbol")))
return (attr, result)
parseRules "String" =
do (attr, result) <- (((pLineContinue >>= withAttribute "String"))
<|>
((pHlCStringChar >>= withAttribute "String Char"))
<|>
((pDetectChar False '"' >>= withAttribute "String") >>~ (popContext >> return ())))
return (attr, result)
parseRules "Region Marker" =
pzero
parseRules "Commentar 1" =
do (attr, result) <- (((pDetectSpaces >>= withAttribute "Comment"))
<|>
((Text.Highlighting.Kate.Syntax.Alert.parseExpression >>= ((withAttribute "") . snd)))
<|>
((pDetectIdentifier >>= withAttribute "Comment")))
return (attr, result)
parseRules "Commentar 2" =
do (attr, result) <- (((pDetectSpaces >>= withAttribute "Comment"))
<|>
((pDetect2Chars False '*' '/' >>= withAttribute "Comment") >>~ (popContext >> return ()))
<|>
((Text.Highlighting.Kate.Syntax.Alert.parseExpression >>= ((withAttribute "") . snd)))
<|>
((pDetectIdentifier >>= withAttribute "Comment")))
return (attr, result)
parseRules "AfterHash" =
do (attr, result) <- (((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*if(?:def|ndef)?(?=\\s+\\S)") >>= withAttribute "Preprocessor") >>~ pushContext "Preprocessor")
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*endif") >>= withAttribute "Preprocessor") >>~ pushContext "Preprocessor")
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*define.*((?=\\\\))") >>= withAttribute "Preprocessor") >>~ pushContext "Define")
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*(?:el(?:se|if)|include(?:_next)?|define|undef|line|error|warning|pragma)") >>= withAttribute "Preprocessor") >>~ pushContext "Preprocessor")
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s+[0-9]+") >>= withAttribute "Preprocessor") >>~ pushContext "Preprocessor"))
return (attr, result)
parseRules "Preprocessor" =
do (attr, result) <- (((pLineContinue >>= withAttribute "Preprocessor"))
<|>
((pRangeDetect '"' '"' >>= withAttribute "Prep. Lib"))
<|>
((pRangeDetect '<' '>' >>= withAttribute "Prep. Lib"))
<|>
((Text.Highlighting.Kate.Syntax.Doxygen.parseExpression >>= ((withAttribute "") . snd)))
<|>
((pDetect2Chars False '/' '*' >>= withAttribute "Comment") >>~ pushContext "Commentar/Preprocessor")
<|>
((pDetect2Chars False '/' '/' >>= withAttribute "Comment") >>~ pushContext "Commentar 1"))
return (attr, result)
parseRules "Define" =
do (attr, result) <- ((pLineContinue >>= withAttribute "Preprocessor"))
return (attr, result)
parseRules "Commentar/Preprocessor" =
do (attr, result) <- (((pDetectSpaces >>= withAttribute "Comment"))
<|>
((pDetect2Chars False '*' '/' >>= withAttribute "Comment") >>~ (popContext >> return ()))
<|>
((pDetectIdentifier >>= withAttribute "Comment")))
return (attr, result)
parseRules "Outscoped" =
do (attr, result) <- (((pDetectSpaces >>= withAttribute "Comment"))
<|>
((Text.Highlighting.Kate.Syntax.Alert.parseExpression >>= ((withAttribute "") . snd)))
<|>
((pDetectIdentifier >>= withAttribute "Comment"))
<|>
((pDetectChar False '"' >>= withAttribute "String") >>~ pushContext "String")
<|>
((Text.Highlighting.Kate.Syntax.Doxygen.parseExpression >>= ((withAttribute "") . snd)))
<|>
((pDetect2Chars False '/' '/' >>= withAttribute "Comment") >>~ pushContext "Commentar 1")
<|>
((pDetect2Chars False '/' '*' >>= withAttribute "Comment") >>~ pushContext "Commentar 2")
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*if") >>= withAttribute "Comment") >>~ pushContext "Outscoped intern")
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*el(?:se|if)") >>= withAttribute "Preprocessor") >>~ (popContext >> return ()))
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*endif") >>= withAttribute "Preprocessor") >>~ (popContext >> return ())))
return (attr, result)
parseRules "Outscoped intern" =
do (attr, result) <- (((pDetectSpaces >>= withAttribute "Comment"))
<|>
((Text.Highlighting.Kate.Syntax.Alert.parseExpression >>= ((withAttribute "") . snd)))
<|>
((pDetectIdentifier >>= withAttribute "Comment"))
<|>
((pDetectChar False '"' >>= withAttribute "String") >>~ pushContext "String")
<|>
((Text.Highlighting.Kate.Syntax.Doxygen.parseExpression >>= ((withAttribute "") . snd)))
<|>
((pDetect2Chars False '/' '/' >>= withAttribute "Comment") >>~ pushContext "Commentar 1")
<|>
((pDetect2Chars False '/' '*' >>= withAttribute "Comment") >>~ pushContext "Commentar 2")
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*if") >>= withAttribute "Comment") >>~ pushContext "Outscoped intern")
<|>
((pFirstNonSpace >> pRegExpr (compileRegex "#\\s*endif") >>= withAttribute "Comment") >>~ (popContext >> return ())))
return (attr, result)
parseRules x = fail $ "Unknown context" ++ x