module Text.Highlighting.Kate.Syntax.Ini
(highlight, parseExpression, syntaxName, syntaxExtensions)
where
import Text.Highlighting.Kate.Types
import Text.Highlighting.Kate.Common
import qualified Text.Highlighting.Kate.Syntax.Alert
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 = "INI Files"
syntaxExtensions :: String
syntaxExtensions = "*.ini;*.pls;*.kcfgc"
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 = "INI Files" }
context <- currentContext <|> (pushContext "ini" >> currentContext)
result <- parseRules context
optional $ eof >> pEndLine
updateState $ \st -> st { synStLanguage = oldLang }
return result
startingState = SyntaxState {synStContexts = fromList [("INI Files",["ini"])], synStLanguage = "INI Files", synStLineNumber = 0, synStPrevChar = '\n', synStPrevNonspace = False, synStCaseSensitive = True, synStKeywordCaseSensitive = False, synStCaptures = []}
pEndLine = do
updateState $ \st -> st{ synStPrevNonspace = False }
context <- currentContext
case context of
"ini" -> return ()
"Value" -> (popContext) >> pEndLine
"Comment" -> (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 $ "on off default defaults localhost null true false yes no normal e_all e_error e_warning e_parse e_notice e_strict e_core_error e_core_warning e_compile_error e_compile_warning e_user_error e_user_warning e_user_notice"
regex_'3b'2e'2a'24 = compileRegex ";.*$"
regex_'23'2e'2a'24 = compileRegex "#.*$"
defaultAttributes = [("ini",DataTypeTok),("Value",StringTok),("Comment",CommentTok)]
parseRules "ini" =
(((pRangeDetect '[' ']' >>= withAttribute KeywordTok) >>~ (popContext))
<|>
((pDetectChar False '=' >>= withAttribute OtherTok) >>~ pushContext "Value")
<|>
((pFirstNonSpace >> pDetectChar False ';' >>= withAttribute CommentTok) >>~ pushContext "Comment")
<|>
((pFirstNonSpace >> pDetectChar False '#' >>= withAttribute CommentTok) >>~ pushContext "Comment"))
parseRules "Value" =
(((pFloat >>= withAttribute FloatTok))
<|>
((pInt >>= withAttribute DecValTok))
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_keywords >>= withAttribute KeywordTok))
<|>
((pRegExpr regex_'3b'2e'2a'24 >>= withAttribute CommentTok) >>~ (popContext))
<|>
((pRegExpr regex_'23'2e'2a'24 >>= withAttribute CommentTok) >>~ (popContext)))
parseRules "Comment" =
(((pDetectSpaces >>= withAttribute CommentTok))
<|>
((Text.Highlighting.Kate.Syntax.Alert.parseExpression >>= ((withAttribute CommentTok) . snd)))
<|>
((pDetectIdentifier >>= withAttribute CommentTok)))
parseRules "" = parseRules "ini"
parseRules x = fail $ "Unknown context" ++ x