{- This module was generated from data in the Kate syntax
   highlighting file makefile.xml, version 1.12, by Per Wigren (wigren@home.se) -}

module Text.Highlighting.Kate.Syntax.Makefile
          (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 Data.Maybe (fromMaybe)
import qualified Data.Set as Set

-- | Full name of language.
syntaxName :: String
syntaxName = "Makefile"

-- | Filename extensions for this language.
syntaxExtensions :: String
syntaxExtensions = "GNUmakefile;Makefile;makefile;GNUmakefile.*;Makefile.*;makefile.*"

-- | Highlight source code using this syntax definition.
highlight :: String -> [SourceLine]
highlight input = evalState (mapM parseSourceLine $ lines input) startingState

parseSourceLine :: String -> State SyntaxState SourceLine
parseSourceLine = mkParseSourceLine parseExpression

-- | Parse an expression using appropriate local context.
parseExpression :: KateParser Token
parseExpression = do
  (lang,cont) <- currentContext
  let defAttr = fromMaybe NormalTok $ lookup (lang,cont) defaultAttributes
  result <- if lang == "Makefile"
               then parseRules (lang,cont) <|>
                      (pDefault >>= withAttribute defAttr)
               else parseRules ("Makefile","Normal")
  optional $ do eof
                updateState $ \st -> st{ synStPrevChar = '\n' }
                pEndLine
  return result

startingState = SyntaxState {synStContexts = [("Makefile","Normal")], synStLineNumber = 0, synStPrevChar = '\n', synStPrevNonspace = False, synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}

pEndLine = do
  updateState $ \st -> st{ synStPrevNonspace = False }
  context <- currentContext
  case context of
    ("Makefile","Normal") -> return ()
    ("Makefile","String") -> (popContext) >> pEndLine
    ("Makefile","Value") -> (popContext) >> pEndLine
    ("Makefile","VarFromValue(") -> return ()
    ("Makefile","VarFromValue{") -> return ()
    ("Makefile","VarFromNormal(") -> return ()
    ("Makefile","VarFromNormal{") -> return ()
    ("Makefile","FunctionCall(") -> return ()
    ("Makefile","FunctionCall{") -> return ()
    ("Makefile","Commands") -> (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)

list_keywords = Set.fromList $ words $ "include define else endef endif ifdef ifeq ifndef ifneq"
list_functions = Set.fromList $ words $ "call subst patsubst strip findstring filter filter-out sort word wordlist words firstword lastword dir notdir suffix basename addsuffix addprefix join wildcard realpath abspath if or and foreach value eval origin flavor shell error warning info"

regex_'5b'5f'5cw'5cd'5d'2a'5cs'2a'28'3f'3d'3a'3d'7c'3d'7c'5c'2b'3d'7c'5c'3f'3d'29 = compileRegex "[_\\w\\d]*\\s*(?=:=|=|\\+=|\\?=)"
regex_'5b'5f'5cw'5cd'2d'5d'2a'5cs'2a'3a = compileRegex "[_\\w\\d-]*\\s*:"
regex_'5b'2e'5d'2e'2a'3a = compileRegex "[.].*:"
regex_'23'2e'2a'24 = compileRegex "#.*$"
regex_'40'5b'2d'5f'5cd'5cw'5d'2a'40 = compileRegex "@[-_\\d\\w]*@"
regex_'5b'5f'5cw'2d'5d'2a'5cb = compileRegex "[_\\w-]*\\b"

defaultAttributes = [(("Makefile","Normal"),NormalTok),(("Makefile","String"),StringTok),(("Makefile","Value"),StringTok),(("Makefile","VarFromValue("),DataTypeTok),(("Makefile","VarFromValue{"),DataTypeTok),(("Makefile","VarFromNormal("),DataTypeTok),(("Makefile","VarFromNormal{"),DataTypeTok),(("Makefile","FunctionCall("),StringTok),(("Makefile","FunctionCall{"),StringTok),(("Makefile","Commands"),NormalTok)]

parseRules ("Makefile","Normal") =
  (((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_keywords >>= withAttribute KeywordTok))
   <|>
   ((pRegExpr regex_'5b'5f'5cw'5cd'5d'2a'5cs'2a'28'3f'3d'3a'3d'7c'3d'7c'5c'2b'3d'7c'5c'3f'3d'29 >>= withAttribute DataTypeTok) >>~ pushContext ("Makefile","Value"))
   <|>
   ((pFirstNonSpace >> pRegExpr regex_'5b'5f'5cw'5cd'2d'5d'2a'5cs'2a'3a >>= withAttribute DecValTok))
   <|>
   ((pColumn 0 >> pRegExpr regex_'5b'2e'5d'2e'2a'3a >>= withAttribute OtherTok))
   <|>
   ((pDetectChar False '"' >>= withAttribute StringTok) >>~ pushContext ("Makefile","String"))
   <|>
   ((pDetect2Chars False '$' '{' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromNormal{"))
   <|>
   ((pDetect2Chars False '$' '(' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromNormal("))
   <|>
   ((pDetect2Chars False '\\' '#' >>= withAttribute FloatTok))
   <|>
   ((pDetect2Chars False '\\' '\\' >>= withAttribute FloatTok))
   <|>
   ((pAnyChar "+*=%$():\\;" >>= withAttribute CharTok))
   <|>
   ((pFirstNonSpace >> pAnyChar "@-" >>= withAttribute CharTok) >>~ pushContext ("Makefile","Commands"))
   <|>
   ((pRegExpr regex_'23'2e'2a'24 >>= withAttribute CommentTok)))

parseRules ("Makefile","String") =
  (((pLineContinue >>= withAttribute StringTok))
   <|>
   ((pDetectChar False '"' >>= withAttribute StringTok) >>~ (popContext)))

parseRules ("Makefile","Value") =
  (((pLineContinue >>= withAttribute CharTok))
   <|>
   ((pDetect2Chars False '$' '{' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromValue{"))
   <|>
   ((pDetect2Chars False '$' '(' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromValue("))
   <|>
   ((pRegExpr regex_'40'5b'2d'5f'5cd'5cw'5d'2a'40 >>= withAttribute FloatTok) >>~ (popContext))
   <|>
   ((pDetectChar False ';' >>= withAttribute CharTok) >>~ (popContext)))

parseRules ("Makefile","VarFromValue(") =
  ((pDetectChar False ')' >>= withAttribute CharTok) >>~ (popContext))

parseRules ("Makefile","VarFromValue{") =
  ((pDetectChar False '}' >>= withAttribute CharTok) >>~ (popContext))

parseRules ("Makefile","VarFromNormal(") =
  (((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_functions >>= withAttribute KeywordTok) >>~ pushContext ("Makefile","FunctionCall("))
   <|>
   ((pDetectChar False ')' >>= withAttribute CharTok) >>~ (popContext)))

parseRules ("Makefile","VarFromNormal{") =
  (((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_functions >>= withAttribute KeywordTok) >>~ pushContext ("Makefile","FunctionCall{"))
   <|>
   ((pDetectChar False '}' >>= withAttribute CommentTok) >>~ (popContext)))

parseRules ("Makefile","FunctionCall(") =
  (((pDetect2Chars False '$' '{' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromNormal{"))
   <|>
   ((pDetect2Chars False '$' '(' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromNormal("))
   <|>
   ((pDetectChar False ')' >>= withAttribute CharTok) >>~ (popContext >> popContext)))

parseRules ("Makefile","FunctionCall{") =
  (((pDetect2Chars False '$' '{' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromNormal{"))
   <|>
   ((pDetect2Chars False '$' '(' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromNormal("))
   <|>
   ((pDetectChar False '}' >>= withAttribute CharTok) >>~ (popContext >> popContext)))

parseRules ("Makefile","Commands") =
  (((pDetect2Chars False '$' '{' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromNormal{"))
   <|>
   ((pDetect2Chars False '$' '(' >>= withAttribute CharTok) >>~ pushContext ("Makefile","VarFromNormal("))
   <|>
   ((pRegExpr regex_'5b'5f'5cw'2d'5d'2a'5cb >>= withAttribute BaseNTok) >>~ (popContext)))


parseRules x = fail $ "Unknown context" ++ show x