module Text.Highlighting.Kate.Syntax.Hamlet
(highlight, parseExpression, syntaxName, syntaxExtensions)
where
import Text.Highlighting.Kate.Types
import Text.Highlighting.Kate.Common
import qualified Text.Highlighting.Kate.Syntax.Haskell
import Text.ParserCombinators.Parsec hiding (State)
import Control.Monad.State
import Data.Char (isSpace)
syntaxName :: String
syntaxName = "Hamlet"
syntaxExtensions :: String
syntaxExtensions = "*.hamlet"
highlight :: String -> [SourceLine]
highlight input = evalState (mapM parseSourceLine $ lines input) startingState
parseSourceLine :: String -> State SyntaxState SourceLine
parseSourceLine = mkParseSourceLine (parseExpression Nothing)
parseExpression :: Maybe (String,String)
-> KateParser Token
parseExpression mbcontext = do
(lang,cont) <- maybe currentContext return mbcontext
result <- parseRules (lang,cont)
optional $ do eof
updateState $ \st -> st{ synStPrevChar = '\n' }
pEndLine
return result
startingState = SyntaxState {synStContexts = [("Hamlet","Normal Text")], synStLineNumber = 0, synStPrevChar = '\n', synStPrevNonspace = False, synStContinuation = False, synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}
pEndLine = do
updateState $ \st -> st{ synStPrevNonspace = False }
context <- currentContext
contexts <- synStContexts `fmap` getState
st <- getState
if length contexts >= 2
then case context of
_ | synStContinuation st -> updateState $ \st -> st{ synStContinuation = False }
("Hamlet","Normal Text") -> (popContext) >> pEndLine
("Hamlet","element") -> return ()
("Hamlet","Logic") -> (popContext) >> pEndLine
("Hamlet","Code") -> return ()
("Hamlet","Codeline") -> (popContext) >> pEndLine
("Hamlet","Assignment") -> (popContext) >> pEndLine
("Hamlet","Attribute") -> return ()
("Hamlet","Value") -> return ()
("Hamlet","Value DQ") -> return ()
("Hamlet","Value SQ") -> return ()
("Hamlet","Value Code") -> return ()
_ -> return ()
else 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)
regex_'3c'28'3f'21'5b0'2d9'5d'29'5b'5cw'5f'3a'5d'5b'5cw'2e'3a'5f'2d'5d'2a'5cb = compileRegex True "<(?![0-9])[\\w_:][\\w.:_-]*\\b"
regex_'28'3f'21'5b0'2d9'5d'29'5b'5cw'5f'3a'5d'5b'5cw'2e'3a'5f'2d'5d'2a = compileRegex True "(?![0-9])[\\w_:][\\w.:_-]*"
regex_'5cs'2b'28'3f'21'5b0'2d9'5d'29'5b'5cw'5f'3a'5d'5b'5cw'2e'3a'5f'2d'5d'2a = compileRegex True "\\s+(?![0-9])[\\w_:][\\w.:_-]*"
regex_'5c'2e'28'3f'21'5b0'2d9'5d'29'5b'5cw'5f'3a'5d'5b'5cw'2e'3a'5f'2d'5d'2a = compileRegex True "\\.(?![0-9])[\\w_:][\\w.:_-]*"
regex_'5cS = compileRegex True "\\S"
regex_'5b'5e'22'27'3e'5cs'5d'2b = compileRegex True "[^\"'>\\s]+"
parseRules ("Hamlet","Normal Text") =
(((pRegExpr regex_'3c'28'3f'21'5b0'2d9'5d'29'5b'5cw'5f'3a'5d'5b'5cw'2e'3a'5f'2d'5d'2a'5cb >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","element"))
<|>
((pString False "^{" >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Code"))
<|>
((pString False "#{" >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Code"))
<|>
((pString False "@{" >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Code"))
<|>
((pString False "_{" >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Code"))
<|>
((pFirstNonSpace >> pDetectChar False '$' >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Logic"))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Normal Text")) >> pDefault >>= withAttribute NormalTok))
parseRules ("Hamlet","element") =
(((pDetect2Chars False '/' '>' >>= withAttribute KeywordTok) >>~ (popContext))
<|>
((pDetectChar False '>' >>= withAttribute KeywordTok) >>~ (popContext))
<|>
((pColumn 0 >> pRegExpr regex_'28'3f'21'5b0'2d9'5d'29'5b'5cw'5f'3a'5d'5b'5cw'2e'3a'5f'2d'5d'2a >>= withAttribute OtherTok) >>~ pushContext ("Hamlet","Attribute"))
<|>
((pRegExpr regex_'5cs'2b'28'3f'21'5b0'2d9'5d'29'5b'5cw'5f'3a'5d'5b'5cw'2e'3a'5f'2d'5d'2a >>= withAttribute OtherTok) >>~ pushContext ("Hamlet","Attribute"))
<|>
((pRegExpr regex_'5c'2e'28'3f'21'5b0'2d9'5d'29'5b'5cw'5f'3a'5d'5b'5cw'2e'3a'5f'2d'5d'2a >>= withAttribute StringTok))
<|>
((pRegExpr regex_'5cS >>= withAttribute ErrorTok))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","element")) >> pDefault >>= withAttribute KeywordTok))
parseRules ("Hamlet","Logic") =
(((pRegExpr (compileRegex True "\\bif\\b") >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Codeline"))
<|>
((pRegExpr (compileRegex True "\\belseif\\b") >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Codeline"))
<|>
((pRegExpr (compileRegex True "\\bforall\\b") >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Assignment"))
<|>
((pRegExpr (compileRegex True "\\bmaybe\\b") >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Assignment"))
<|>
((pRegExpr (compileRegex True "\\belse\\b") >>= withAttribute KeywordTok))
<|>
((pRegExpr (compileRegex True "\\bnothing\\b") >>= withAttribute KeywordTok))
<|>
((pRegExpr regex_'5cS >>= withAttribute ErrorTok))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Logic")) >> pDefault >>= withAttribute NormalTok))
parseRules ("Hamlet","Code") =
(((pDetectChar False '}' >>= withAttribute KeywordTok) >>~ (popContext))
<|>
((Text.Highlighting.Kate.Syntax.Haskell.parseExpression (Just ("Haskell",""))))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Code")) >> pDefault >>= withAttribute NormalTok))
parseRules ("Hamlet","Codeline") =
(((Text.Highlighting.Kate.Syntax.Haskell.parseExpression (Just ("Haskell",""))))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Codeline")) >> pDefault >>= withAttribute NormalTok))
parseRules ("Hamlet","Assignment") =
(((pString False "<-" >>= withAttribute OtherTok) >>~ pushContext ("Hamlet","Codeline"))
<|>
((Text.Highlighting.Kate.Syntax.Haskell.parseExpression (Just ("Haskell",""))))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Assignment")) >> pDefault >>= withAttribute NormalTok))
parseRules ("Hamlet","Attribute") =
(((pDetectChar False '=' >>= withAttribute OtherTok) >>~ pushContext ("Hamlet","Value"))
<|>
((pDetectChar False '>' >>= withAttribute KeywordTok) >>~ (popContext >> popContext))
<|>
((pRegExpr regex_'5cS >>= withAttribute ErrorTok))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Attribute")) >> pDefault >>= withAttribute NormalTok))
parseRules ("Hamlet","Value") =
(((pDetectChar False '"' >>= withAttribute StringTok) >>~ pushContext ("Hamlet","Value DQ"))
<|>
((pDetectChar False '\'' >>= withAttribute StringTok) >>~ pushContext ("Hamlet","Value SQ"))
<|>
((pString False "@{" >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Value Code"))
<|>
((pString False "#{" >>= withAttribute KeywordTok) >>~ pushContext ("Hamlet","Value Code"))
<|>
((pRegExpr regex_'5b'5e'22'27'3e'5cs'5d'2b >>= withAttribute StringTok) >>~ (popContext >> popContext))
<|>
((pRegExpr regex_'5cS >>= withAttribute ErrorTok))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Value")) >> pDefault >>= withAttribute StringTok))
parseRules ("Hamlet","Value DQ") =
(((pDetectChar False '"' >>= withAttribute StringTok) >>~ (popContext >> popContext >> popContext))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Value DQ")) >> pDefault >>= withAttribute StringTok))
parseRules ("Hamlet","Value SQ") =
(((pDetectChar False '\'' >>= withAttribute StringTok) >>~ (popContext >> popContext >> popContext))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Value SQ")) >> pDefault >>= withAttribute StringTok))
parseRules ("Hamlet","Value Code") =
(((pDetectChar False '}' >>= withAttribute KeywordTok) >>~ (popContext >> popContext >> popContext))
<|>
((Text.Highlighting.Kate.Syntax.Haskell.parseExpression (Just ("Haskell",""))))
<|>
(currentContext >>= \x -> guard (x == ("Hamlet","Value Code")) >> pDefault >>= withAttribute NormalTok))
parseRules ("Haskell", _) = Text.Highlighting.Kate.Syntax.Haskell.parseExpression Nothing
parseRules x = parseRules ("Hamlet","Normal Text") <|> fail ("Unknown context" ++ show x)