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 Data.Map (fromList)
import Control.Monad.State
import Data.Char (isSpace)
import Data.Maybe (fromMaybe)
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 parseExpressionInternal pEndLine
parseExpression :: KateParser Token
parseExpression = do
st <- getState
let oldLang = synStLanguage st
setState $ st { synStLanguage = "RelaxNG-Compact" }
context <- currentContext <|> (pushContext "Normal Text" >> currentContext)
result <- parseRules context
optional $ eof >> pEndLine
updateState $ \st -> st { synStLanguage = oldLang }
return result
startingState = SyntaxState {synStContexts = fromList [("RelaxNG-Compact",["Normal Text"])], synStLanguage = "RelaxNG-Compact", synStLineNumber = 0, synStPrevChar = '\n', synStPrevNonspace = False, synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}
pEndLine = do
updateState $ \st -> st{ synStPrevNonspace = False }
context <- currentContext
case context of
"Normal Text" -> return ()
"Comments" -> (popContext) >> pEndLine
"String" -> return ()
"Node Names" -> (popContext) >> pEndLine
"Definitions" -> (popContext) >> pEndLine
_ -> 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 $ "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]+="
defaultAttributes = [("Normal Text",NormalTok),("Comments",CommentTok),("String",StringTok),("Node Names",OtherTok),("Definitions",FunctionTok)]
parseRules "Normal Text" =
(((pFirstNonSpace >> pDetectChar False '#' >>= withAttribute CommentTok) >>~ pushContext "Comments")
<|>
((pDetectChar False '"' >>= withAttribute StringTok) >>~ pushContext "String")
<|>
((pKeyword " \n\t.()!+,<=>%&*/;?[]^{|}~\\" list_Keywords >>= withAttribute KeywordTok))
<|>
((pKeyword " \n\t.()!+,<=>%&*/;?[]^{|}~\\" list_Node_Names >>= withAttribute KeywordTok) >>~ pushContext "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 "Definitions" >> currentContext >>= parseRules)))
parseRules "Comments" =
pzero
parseRules "String" =
((pDetectChar False '"' >>= withAttribute StringTok) >>~ (popContext))
parseRules "Node Names" =
((lookAhead (pDetectChar False '{') >> (popContext) >> currentContext >>= parseRules))
parseRules "Definitions" =
((lookAhead (pDetectChar False '=') >> (popContext >> popContext) >> currentContext >>= parseRules))
parseRules "" = parseRules "Normal Text"
parseRules x = fail $ "Unknown context" ++ x