module Text.Highlighting.Kate.Syntax.Haxe
(highlight, parseExpression, syntaxName, syntaxExtensions)
where
import Text.Highlighting.Kate.Types
import Text.Highlighting.Kate.Common
import Text.ParserCombinators.Parsec hiding (State)
import Data.Map (fromList)
import Control.Monad.State
import Data.Char (isSpace)
import Data.Maybe (fromMaybe)
import qualified Data.Set as Set
syntaxName :: String
syntaxName = "Haxe"
syntaxExtensions :: String
syntaxExtensions = "*.hx;*.Hx;*.hX;*.HX;"
highlight :: String -> [SourceLine]
highlight input = evalState (mapM parseSourceLine $ lines input) startingState
parseSourceLine :: String -> State SyntaxState SourceLine
parseSourceLine = mkParseSourceLine parseExpressionInternal pEndLine
parseExpression :: KateParser Token
parseExpression = do
st <- getState
let oldLang = synStLanguage st
setState $ st { synStLanguage = "Haxe" }
context <- currentContext <|> (pushContext "normal" >> currentContext)
result <- parseRules context
optional $ eof >> pEndLine
updateState $ \st -> st { synStLanguage = oldLang }
return result
startingState = SyntaxState {synStContexts = fromList [("Haxe",["normal"])], synStLanguage = "Haxe", synStLineNumber = 0, synStPrevChar = '\n', synStPrevNonspace = False, synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}
pEndLine = do
updateState $ \st -> st{ synStPrevNonspace = False }
context <- currentContext
case context of
"normal" -> return ()
"ModuleName" -> return ()
"RawString" -> return ()
"String" -> return ()
"CommentLine" -> (popContext) >> pEndLine
"CommentBlock" -> return ()
_ -> return ()
withAttribute attr txt = do
when (null txt) $ fail "Parser matched no text"
updateState $ \st -> st { synStPrevChar = last txt
, synStPrevNonspace = synStPrevNonspace st || not (all isSpace txt) }
return (attr, txt)
parseExpressionInternal = do
context <- currentContext
parseRules context <|> (pDefault >>= withAttribute (fromMaybe NormalTok $ lookup context defaultAttributes))
list_keywords = Set.fromList $ words $ "break case cast catch class continue default else enum extends false for function if implements in inline interface new null override private public return static super switch this throw trace true try typedef untyped var while"
list_modules = Set.fromList $ words $ "package import"
list_types = Set.fromList $ words $ "Array Void Bool Int UInt Float Dynamic String List Error Unknown Type"
regex_'23if'28'5cs'2b'5cw'2b'29'3f = compileRegex "#if(\\s+\\w+)?"
regex_'23'28else'7celseif'7cend'7cerror'29 = compileRegex "#(else|elseif|end|error)"
regex_'5b'5cd'5d'5b'5cd'5d'2a'28'5c'2e'28'3f'21'5c'2e'29'5b'5cd'5d'2a'28'5beE'5d'5b'2d'2b'5d'3f'5b'5cd'5d'2b'29'3f'29 = compileRegex "[\\d][\\d]*(\\.(?!\\.)[\\d]*([eE][-+]?[\\d]+)?)"
regex_'5c'2e'5b'5cd'5d'5b'5cd'5d'2a'28'5beE'5d'5b'2d'2b'5d'3f'5b'5cd'5d'2b'29'3f = compileRegex "\\.[\\d][\\d]*([eE][-+]?[\\d]+)?"
regex_0'5bxX'5d'5b'5cda'2dfA'2dF'5d'2b = compileRegex "0[xX][\\da-fA-F]+"
regex_'5cd'2b = compileRegex "\\d+"
regex_'5b'5e'5cs'5cw'2e'3a'2c'5d = compileRegex "[^\\s\\w.:,]"
regex_'5c'5c'28u'5b'5cda'2dfA'2dF'5d'7b4'7d'7cU'5b'5cda'2dfA'2dF'5d'7b8'7d'7c'26'5ba'2dzA'2dZ'5d'5cw'2b'3b'29 = compileRegex "\\\\(u[\\da-fA-F]{4}|U[\\da-fA-F]{8}|&[a-zA-Z]\\w+;)"
defaultAttributes = [("normal",NormalTok),("ModuleName",NormalTok),("RawString",StringTok),("String",StringTok),("CommentLine",CommentTok),("CommentBlock",CommentTok)]
parseRules "normal" =
(((pRegExpr regex_'23if'28'5cs'2b'5cw'2b'29'3f >>= withAttribute OtherTok) >>~ (popContext))
<|>
((pRegExpr regex_'23'28else'7celseif'7cend'7cerror'29 >>= withAttribute OtherTok) >>~ (popContext))
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_keywords >>= withAttribute KeywordTok))
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_modules >>= withAttribute KeywordTok) >>~ pushContext "ModuleName")
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_types >>= withAttribute DataTypeTok))
<|>
((pDetectIdentifier >>= withAttribute NormalTok))
<|>
((pHlCStringChar >>= withAttribute NormalTok) >>~ (popContext))
<|>
((pDetectChar False '\'' >>= withAttribute StringTok) >>~ pushContext "RawString")
<|>
((pDetectChar False '"' >>= withAttribute StringTok) >>~ pushContext "String")
<|>
((pDetect2Chars False '/' '/' >>= withAttribute CommentTok) >>~ pushContext "CommentLine")
<|>
((pDetect2Chars False '/' '*' >>= withAttribute CommentTok) >>~ pushContext "CommentBlock")
<|>
((pDetectChar False '{' >>= withAttribute NormalTok))
<|>
((pDetectChar False '}' >>= withAttribute NormalTok))
<|>
((pString False "..." >>= withAttribute NormalTok) >>~ (popContext))
<|>
((pDetect2Chars False '.' '.' >>= withAttribute NormalTok))
<|>
((pRegExpr regex_'5b'5cd'5d'5b'5cd'5d'2a'28'5c'2e'28'3f'21'5c'2e'29'5b'5cd'5d'2a'28'5beE'5d'5b'2d'2b'5d'3f'5b'5cd'5d'2b'29'3f'29 >>= withAttribute FloatTok) >>~ (popContext))
<|>
((pRegExpr regex_'5c'2e'5b'5cd'5d'5b'5cd'5d'2a'28'5beE'5d'5b'2d'2b'5d'3f'5b'5cd'5d'2b'29'3f >>= withAttribute FloatTok) >>~ (popContext))
<|>
((pRegExpr regex_0'5bxX'5d'5b'5cda'2dfA'2dF'5d'2b >>= withAttribute BaseNTok) >>~ (popContext))
<|>
((pRegExpr regex_'5cd'2b >>= withAttribute DecValTok) >>~ (popContext)))
parseRules "ModuleName" =
(((pDetect2Chars False '/' '/' >>= withAttribute CommentTok) >>~ pushContext "CommentLine")
<|>
((pDetect2Chars False '/' '*' >>= withAttribute CommentTok) >>~ pushContext "CommentBlock")
<|>
((pRegExpr regex_'5b'5e'5cs'5cw'2e'3a'2c'5d >>= withAttribute NormalTok) >>~ (popContext)))
parseRules "RawString" =
((pDetectChar False '\'' >>= withAttribute StringTok) >>~ (popContext))
parseRules "String" =
(((pDetect2Chars False '\\' '"' >>= withAttribute StringTok))
<|>
((pDetectChar False '"' >>= withAttribute StringTok) >>~ (popContext))
<|>
((pHlCStringChar >>= withAttribute StringTok))
<|>
((pRegExpr regex_'5c'5c'28u'5b'5cda'2dfA'2dF'5d'7b4'7d'7cU'5b'5cda'2dfA'2dF'5d'7b8'7d'7c'26'5ba'2dzA'2dZ'5d'5cw'2b'3b'29 >>= withAttribute StringTok)))
parseRules "CommentLine" =
pzero
parseRules "CommentBlock" =
((pDetect2Chars False '*' '/' >>= withAttribute CommentTok) >>~ (popContext))
parseRules "" = parseRules "normal"
parseRules x = fail $ "Unknown context" ++ x