{- This module was generated from data in the Kate syntax highlighting file tcl.xml, version 1.10,
   by   -}

module Text.Highlighting.Kate.Syntax.Tcl ( highlight, parseExpression, syntaxName, syntaxExtensions ) where
import Text.Highlighting.Kate.Definitions
import Text.Highlighting.Kate.Common
import Text.ParserCombinators.Parsec
import Control.Monad (when)
import Data.Map (fromList)
import Data.Maybe (fromMaybe, maybeToList)

import qualified Data.Set as Set
-- | Full name of language.
syntaxName :: String
syntaxName = "Tcl/Tk"

-- | Filename extensions for this language.
syntaxExtensions :: String
syntaxExtensions = "*.tcl;*.tk"

-- | Highlight source code using this syntax definition.
highlight :: String -> Either String [SourceLine]
highlight input =
  case runParser parseSource startingState "source" input of
    Left err     -> Left $ show err
    Right result -> Right result

-- | Parse an expression using appropriate local context.
parseExpression :: GenParser Char SyntaxState LabeledSource
parseExpression = do
  st <- getState
  let oldLang = synStLanguage st
  setState $ st { synStLanguage = "Tcl/Tk" }
  context <- currentContext <|> (pushContext "Base" >> 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 [("Tcl/Tk",["Base"])], synStLanguage = "Tcl/Tk", synStCurrentLine = "", synStCharsParsedInLine = 0, synStPrevChar = '\n', synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}

parseSourceLine = manyTill parseExpressionInternal pEndLine

pEndLine = do
  lookAhead $ newline <|> (eof >> return '\n')
  context <- currentContext
  case context of
    "Base" -> return () >> pHandleEndLine
    "String" -> return () >> pHandleEndLine
    "Comment" -> (popContext) >> pEndLine
    "New command line" -> return () >> pHandleEndLine
    _ -> pHandleEndLine

withAttribute attr txt = do
  when (null txt) $ fail "Parser matched no text"
  let labs = attr : maybeToList (lookup attr styles)
  st <- getState
  let oldCharsParsed = synStCharsParsedInLine st
  let prevchar = if null txt then '\n' else last txt
  updateState $ \st -> st { synStCharsParsedInLine = oldCharsParsed + length txt, synStPrevChar = prevchar } 
  return (labs, txt)

styles = [("Keyword","kw"),("Decimal","dv"),("Float","fl"),("String","st"),("Comment","co"),("Parameter","ot"),("Variable","dt"),("Char","ch"),("Region Marker","re")]

parseExpressionInternal = do
  context <- currentContext
  parseRules context <|> (pDefault >>= withAttribute (fromMaybe "" $ lookup context defaultAttributes))

list_keywords = Set.fromList $ words $ "after append AppleScript argv argc array auto_execk auto_load auto_mkindex auto_path auto_reset beep bell binary bind bindtags bgerror break button canvas case catch cd checkbutton clipboard clock close concat console continue dde destroy else elseif encoding entry env eof error errorCode errorInfo eval event exec exit expr fblocked fconfigure fcopy file fileevent flush focus font for foreach format frame gets glob global grab grid history if image incr info interp join label lappend lindex linsert list listbox llength load lower lrange lreplace lsearch lsort menu menubutton message namespace open option OptProc pack package parray pid place pkg_mkindex proc puts pwd radiobutton raise read regexp registry regsub rename resource return scale scan scrollbar seek selection send set socket source split string subst switch tclLog tcl_endOfWord tcl_findLibrary tcl_library tcl_patchLevel tcl_platform tcl_precision tcl_rcFileName tcl_rcRsrcName tcl_startOfNextWord tcl_startOfPreviousWord tcl_traceCompile tcl_traceExec tcl_version tcl_wordBreakAfter tcl_wordBreakBefore tell text time tk tkTabToWindow tkwait tk_chooseColor tk_chooseDirectory tk_focusFollowMouse tk_focusNext tk_focusPrev tk_getOpenFile tk_getSaveFile tk_library tk_messageBox tk_optionMenu tk_patchLevel tk_popup tk_strictMotif tk_version toplevel trace unknown unset update uplevel upvar variable vwait while winfo wm"
list_keywords'2dopt = Set.fromList $ words $ "add args atime attributes body bytelength cancel channels clicks cmdcount commands compare complete convertfrom convertto copy default delete dirname equal executable exists extension first forget format functions globals hostname idle ifneeded index info is isdirectory isfile join last length level library link loaded locals lstat map match mkdir mtime nameofexecutable names nativename normalize number owned patchlevel pathtype present procs provide range readable readlink remove rename repeat replace require rootname scan script seconds separator sharedlibextension size split stat system tail tclversion tolower totitle toupper trim trimleft trimright type unknown variable vars vcompare vdelete versions vinfo volumes vsatisfies wordend wordstart writable activate actual addtag append appname aspect atom atomname bbox bind broadcast canvasx canvasy caret cells cget children class clear client clone colormapfull colormapwindows command configure containing coords create current curselection dchars debug deiconify delta depth deselect dlineinfo dtag dump edit entrycget entryconfigure families find flash focus focusmodel fpixels fraction frame generate geometry get gettags grid group handle height hide iconbitmap iconify iconmask iconname iconposition iconwindow icursor id identify image insert interps inuse invoke ismapped itemcget itemconfigure keys lower manager mark maxsize measure metrics minsize move name nearest overrideredirect own panecget paneconfigure panes parent pathname pixels pointerx pointerxy pointery positionfrom post postcascade postscript protocol proxy raise release reqheight reqwidth resizable rgb rootx rooty scale scaling screen screencells screendepth screenheight screenmmheight screenmmwidth screenvisual screenwidth search see select selection server set show sizefrom stackorder state status tag title toplevel transient types unpost useinputmethods validate values viewable visual visualid visualsavailable vrootheight vrootwidth vrootx vrooty width window windowingsystem withdraw x xview y"

regex_'23'5cs'2aBEGIN'2e'2a'24 = compileRegex "#\\s*BEGIN.*$"
regex_'23'5cs'2aEND'2e'2a'24 = compileRegex "#\\s*END.*$"
regex_'5c'5c'2e = compileRegex "\\\\."
regex_'5cs'2d'5cw'2b = compileRegex "\\s-\\w+"
regex_'5c'24'5c'7b'28'5b'5e'5c'7d'5d'7c'5c'5c'5c'7d'29'2b'5c'7d = compileRegex "\\$\\{([^\\}]|\\\\\\})+\\}"
regex_'5c'24'28'3a'3a'7c'5cw'29'2b = compileRegex "\\$(::|\\w)+"
regex_'22'7b2'7d = compileRegex "\"{2}"
regex_'22 = compileRegex "\""
regex_'5cs'2a'23 = compileRegex "\\s*#"
regex_'2e = compileRegex "."

defaultAttributes = [("Base","Normal Text"),("String","String"),("Comment","Comment"),("New command line","Normal Text")]

parseRules "Base" = 
  do (attr, result) <- (((pFirstNonSpace >> pRegExpr regex_'23'5cs'2aBEGIN'2e'2a'24 >>= withAttribute "Region Marker"))
                        <|>
                        ((pFirstNonSpace >> pRegExpr regex_'23'5cs'2aEND'2e'2a'24 >>= withAttribute "Region Marker"))
                        <|>
                        ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_keywords >>= withAttribute "Keyword"))
                        <|>
                        ((pKeyword " \n\t.():!+,-<=>%&*/;?[]^{|}~\\" list_keywords'2dopt >>= withAttribute "Parameter"))
                        <|>
                        ((pFloat >>= withAttribute "Float"))
                        <|>
                        ((pInt >>= withAttribute "Decimal"))
                        <|>
                        ((pRegExpr regex_'5c'5c'2e >>= withAttribute "Char"))
                        <|>
                        ((pRegExpr regex_'5cs'2d'5cw'2b >>= withAttribute "Parameter"))
                        <|>
                        ((pRegExpr regex_'5c'24'5c'7b'28'5b'5e'5c'7d'5d'7c'5c'5c'5c'7d'29'2b'5c'7d >>= withAttribute "Variable"))
                        <|>
                        ((pRegExpr regex_'5c'24'28'3a'3a'7c'5cw'29'2b >>= withAttribute "Variable"))
                        <|>
                        ((pRegExpr regex_'22'7b2'7d >>= withAttribute "String"))
                        <|>
                        ((pRegExpr regex_'22 >>= withAttribute "String") >>~ pushContext "String")
                        <|>
                        ((pDetectChar False ';' >>= withAttribute "Normal Text") >>~ pushContext "New command line")
                        <|>
                        ((pFirstNonSpace >> pDetectChar False '#' >>= withAttribute "Comment") >>~ pushContext "Comment")
                        <|>
                        ((pDetectChar False '{' >>= withAttribute "Keyword"))
                        <|>
                        ((pDetectChar False '}' >>= withAttribute "Keyword"))
                        <|>
                        ((pDetectChar False '[' >>= withAttribute "Keyword"))
                        <|>
                        ((pDetectChar False ']' >>= withAttribute "Keyword")))
     return (attr, result)

parseRules "String" = 
  do (attr, result) <- (((pRegExpr regex_'5c'5c'2e >>= withAttribute "Char"))
                        <|>
                        ((pDetectChar False '"' >>= withAttribute "String") >>~ (popContext))
                        <|>
                        ((pDetectChar False '$' >>= withAttribute "Variable")))
     return (attr, result)

parseRules "Comment" = 
  pzero

parseRules "New command line" = 
  do (attr, result) <- (((pRegExpr regex_'5cs'2a'23 >>= withAttribute "Comment") >>~ pushContext "Comment")
                        <|>
                        ((lookAhead (pRegExpr regex_'2e) >> return ([],"") ) >>~ (popContext)))
     return (attr, result)

parseRules "" = parseRules "Base"

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