module Text.Highlighting.Kate.Syntax.Relaxngcompact
(highlight, parseExpression, syntaxName, syntaxExtensions)
where
import Text.Highlighting.Kate.Types
import Text.Highlighting.Kate.Common
import Text.ParserCombinators.Parsec hiding (State)
import Control.Monad.State
import Data.Char (isSpace)
import qualified Data.Set as Set
syntaxName :: String
syntaxName = "RelaxNG-Compact"
syntaxExtensions :: String
syntaxExtensions = "*.rnc"
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 = [("RelaxNG-Compact","Normal Text")], synStLineNumber = 0, synStPrevChar = '\n', synStPrevNonspace = False, synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}
pEndLine = do
updateState $ \st -> st{ synStPrevNonspace = False }
context <- currentContext
contexts <- synStContexts `fmap` getState
if length contexts >= 2
then case context of
("RelaxNG-Compact","Normal Text") -> return ()
("RelaxNG-Compact","Comments") -> (popContext) >> pEndLine
("RelaxNG-Compact","String") -> return ()
("RelaxNG-Compact","Node Names") -> (popContext) >> pEndLine
("RelaxNG-Compact","Definitions") -> (popContext) >> pEndLine
_ -> 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)
list_Keywords = Set.fromList $ words $ "default datatypes div empty external grammar include inherit list mixed namespace notAllowed parent start token"
list_Node_Names = Set.fromList $ words $ "attribute element"
list_Datatypes = Set.fromList $ words $ "string text xsd:anyURI xsd:base64Binary xsd:boolean xsd:byte xsd:date xsd:dateTime xsd:decimal xsd:double xsd:duration xsd:ENTITIES xsd:ENTITY xsd:float xsd:gDay xsd:gMonth xsd:gMonthDay xsd:gYear xsd:gYearMonth xsd:hexBinary xsd:ID xsd:IDREF xsd:IDREFS xsd:int xsd:integer xsd:language xsd:long xsd:Name xsd:NCName xsd:negativeInteger xsd:NMTOKEN xsd:NMTOKENS xsd:nonNegativeInteger xsd:nonPositiveInteger xsd:normalizedString xsd:NOTATION xsd:positiveInteger xsd:QName xsd:short xsd:string xsd:time xsd:token xsd:unsignedByte xsd:unsignedInt xsd:unsignedLong xsd:unsignedShort"
regex_'5b'5cw'5c'2e'2d'5d'2b'5b'5cs'5d'2b'3d = compileRegex "[\\w\\.-]+[\\s]+="
parseRules ("RelaxNG-Compact","Normal Text") =
(((pFirstNonSpace >> pDetectChar False '#' >>= withAttribute CommentTok) >>~ pushContext ("RelaxNG-Compact","Comments"))
<|>
((pDetectChar False '"' >>= withAttribute StringTok) >>~ pushContext ("RelaxNG-Compact","String"))
<|>
((pKeyword " \n\t.()!+,<=>%&*/;?[]^{|}~\\" list_Keywords >>= withAttribute KeywordTok))
<|>
((pKeyword " \n\t.()!+,<=>%&*/;?[]^{|}~\\" list_Node_Names >>= withAttribute KeywordTok) >>~ pushContext ("RelaxNG-Compact","Node Names"))
<|>
((pKeyword " \n\t.()!+,<=>%&*/;?[]^{|}~\\" list_Datatypes >>= withAttribute DataTypeTok))
<|>
((lookAhead (pRegExpr regex_'5b'5cw'5c'2e'2d'5d'2b'5b'5cs'5d'2b'3d) >> pushContext ("RelaxNG-Compact","Definitions") >> currentContext >>= parseRules))
<|>
(currentContext >>= \x -> guard (x == ("RelaxNG-Compact","Normal Text")) >> pDefault >>= withAttribute NormalTok))
parseRules ("RelaxNG-Compact","Comments") =
(currentContext >>= \x -> guard (x == ("RelaxNG-Compact","Comments")) >> pDefault >>= withAttribute CommentTok)
parseRules ("RelaxNG-Compact","String") =
(((pDetectChar False '"' >>= withAttribute StringTok) >>~ (popContext))
<|>
(currentContext >>= \x -> guard (x == ("RelaxNG-Compact","String")) >> pDefault >>= withAttribute StringTok))
parseRules ("RelaxNG-Compact","Node Names") =
(((lookAhead (pDetectChar False '{') >> (popContext) >> currentContext >>= parseRules))
<|>
(currentContext >>= \x -> guard (x == ("RelaxNG-Compact","Node Names")) >> pDefault >>= withAttribute OtherTok))
parseRules ("RelaxNG-Compact","Definitions") =
(((lookAhead (pDetectChar False '=') >> (popContext >> popContext) >> currentContext >>= parseRules))
<|>
(currentContext >>= \x -> guard (x == ("RelaxNG-Compact","Definitions")) >> pDefault >>= withAttribute FunctionTok))
parseRules x = parseRules ("RelaxNG-Compact","Normal Text") <|> fail ("Unknown context" ++ show x)