module Text.Highlighting.Kate.Syntax.Ada ( highlight, parseExpression, syntaxName, syntaxExtensions ) where
import Text.Highlighting.Kate.Definitions
import Text.Highlighting.Kate.Common
import Text.ParserCombinators.Parsec
import Data.List (nub)
import Data.Map (fromList)
import Data.Maybe (fromMaybe)
syntaxName :: String
syntaxName = "Ada"
syntaxExtensions :: String
syntaxExtensions = "*.adb;*.ads;*.ada;*.a"
highlight :: String -> Either String [SourceLine]
highlight input =
case runParser parseSource startingState "source" input of
Left err -> Left $ show err
Right result -> Right result
parseExpression :: GenParser Char SyntaxState LabeledSource
parseExpression = do
st <- getState
let oldLang = synStLanguage st
setState $ st { synStLanguage = "Ada" }
context <- currentContext <|> (pushContext "Default" >> currentContext)
result <- parseRules context
updateState $ \st -> st { synStLanguage = oldLang }
return result
parseSource = do
lineContents <- lookAhead wholeLine
updateState $ \st -> st { synStCurrentLine = lineContents }
result <- manyTill parseSourceLine eof
return $ map normalizeHighlighting result
startingState = SyntaxState {synStContexts = fromList [("Ada",["Default"])], synStLanguage = "Ada", synStCurrentLine = "", synStCharsParsedInLine = 0, synStCaseSensitive = True, synStKeywordCaseSensitive = False, synStCaptures = []}
parseSourceLine = manyTill parseExpressionInternal pEndLine
pEndLine = do
newline <|> (eof >> return '\n')
context <- currentContext
case context of
"Default" -> return ()
"Region Marker" -> (popContext >> return ())
"String" -> (popContext >> return ())
"Comment" -> (popContext >> return ())
_ -> return ()
lineContents <- lookAhead wholeLine
updateState $ \st -> st { synStCurrentLine = lineContents, synStCharsParsedInLine = 0 }
withAttribute attr txt = do
if null txt
then fail "Parser matched no text"
else return ()
let style = fromMaybe "" $ lookup attr styles
st <- getState
let oldCharsParsed = synStCharsParsedInLine st
updateState $ \st -> st { synStCharsParsedInLine = oldCharsParsed + length txt }
return (nub [style, attr], txt)
styles = [("Normal Text","Normal"),("Keyword","Keyword"),("Pragmas","Keyword"),("Data Type","DataType"),("Decimal","DecVal"),("Base-N","BaseN"),("Float","Float"),("Char","Char"),("String","String"),("Comment","Comment"),("Symbol","Normal"),("Region Marker","RegionMarker")]
parseExpressionInternal = do
context <- currentContext
parseRules context <|> (pDefault >>= withAttribute (fromMaybe "" $ lookup context defaultAttributes))
defaultAttributes = [("Default","Normal Text"),("Region Marker","Region Marker"),("String","String"),("Comment","Comment")]
parseRules "Default" =
do (attr, result) <- (((pRegExpr (compileRegex "\\brecord\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bend\\s+record\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bcase\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bend\\s+case\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bif\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bend\\s+if\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bloop\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bend\\s+loop\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bselect\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bend\\s+select\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bbegin\\b") >>= withAttribute "Keyword"))
<|>
((pRegExpr (compileRegex "\\bend\\b") >>= withAttribute "Keyword"))
<|>
((pFirstNonSpace >> pString False "-- BEGIN" >>= withAttribute "Region Marker") >>~ pushContext "Region Marker")
<|>
((pFirstNonSpace >> pString False "-- END" >>= withAttribute "Region Marker") >>~ pushContext "Region Marker")
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["abort","abs","abstract","accept","access","aliased","all","and","array","at","begin","body","constant","declare","delay","delta","digits","do","else","elsif","end","entry","exception","exit","for","function","generic","goto","in","interface","is","limited","mod","new","not","null","of","or","others","out","overriding","package","pragma","private","procedure","protected","raise","range","rem","record","renames","requeue","return","reverse","separate","subtype","tagged","task","terminate","then","type","until","use","when","while","with","xor"] >>= withAttribute "Keyword"))
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["all_calls_remote","assert","assertion_policy","asynchronous","atomic","atomic_components","attach_handler","controlled","convention","detect_blocking","discard_names","elaborate","elaborate_all","elaborate_body","export","import","inline","inspection_point","interrupt_handler","interrupt_priority","linker_options","list","locking_policy","no_return","normalize_scalars","optimize","pack","page","partition_elaboration_policy","preelaborable_initialization","preelaborate","priority","priority_specific_dispatching","profile","pure","queuing_policy","relative_deadline","remote_call_interface","remote_types","restrictions","reviewable","shared_passive","storage_size","suppress","task_dispatching_policy","unchecked_union","unsuppress","volatile","volatile_components"] >>= withAttribute "Pragmas"))
<|>
((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" ["boolean","char","float","integer","long_float","long_integer","long_long_float","long_long_integer","short_float","short_integer","string","wide_string","wide_char","wide_wide_char","wide_wide_string"] >>= withAttribute "Data Type"))
<|>
((pFloat >>= withAttribute "Float"))
<|>
((pInt >>= withAttribute "Decimal"))
<|>
((pRegExpr (compileRegex "'.'") >>= withAttribute "Char"))
<|>
((pDetectChar False '"' >>= withAttribute "String") >>~ pushContext "String")
<|>
((pDetect2Chars False '-' '-' >>= withAttribute "Comment") >>~ pushContext "Comment")
<|>
((pAnyChar ":!%&()+,-/.*<=>|" >>= withAttribute "Symbol")))
return (attr, result)
parseRules "Region Marker" =
pzero
parseRules "String" =
do (attr, result) <- ((pDetectChar False '"' >>= withAttribute "String") >>~ (popContext >> return ()))
return (attr, result)
parseRules "Comment" =
pzero
parseRules x = fail $ "Unknown context" ++ x