Beispiel #1
0
 public void Parse(Lisp.Parser parser)
 {
     int d = parser.Depth;
     while(parser.Parse() && parser.Depth >= d) {
         if(parser.Depth == d+1) {
             if(parser.Type != Parser.LispType.SYMBOL)
                 throw new Exception("expected SYMBOL at supertux-tiles level, but got \"" + parser.StringValue + "\"");
             string symbol = parser.SymbolValue;
             parser.Parse();
             switch(symbol) {
                 case "name":
                     Name = parser.StringValue;
                     break;
                 case "tiles":
                     do {
                       Tiles.Add(parser.IntegerValue);
                     } while(parser.Parse()
                             && parser.Type == Parser.LispType.INTEGER);
                     break;
                 default:
                     Console.WriteLine("Unknown section " + symbol);
                     break;
             }
         }
     }
 }
Beispiel #2
0
        public void Can_import_into_global_symbols()
        {
            var SExprs = Lisp.Parse("(fib 10)");

            var lispCtx = Lisp.CreateInterpreter();

            try
            {
                lispCtx.Eval(SExprs);
                Assert.Fail("should throw");
            }
            catch (LispEvalException e) {}

            Lisp.Import(@"
(defun fib (n)
  (if (< n 2)
      1
    (+ (fib (- n 1))
       (fib (- n 2)) )
  ))
");
            lispCtx = Lisp.CreateInterpreter();

            Assert.That(lispCtx.Eval(SExprs), Is.EqualTo(89));

            Lisp.Reset();

            lispCtx = Lisp.CreateInterpreter();
            try
            {
                lispCtx.Eval(SExprs);
                Assert.Fail("should throw");
            }
            catch (LispEvalException e) {}
        }
Beispiel #3
0
        public void Can_eval_fib_lisp()
        {
            var lisp = @"
(defun fib (n)
  (if (< n 2)
      1
    (+ (fib (- n 1))
       (fib (- n 2)) )
  ))
";

            try
            {
                var lispCtx = Lisp.CreateInterpreter();

                var sExpressions = Lisp.Parse(lisp);
                var x            = lispCtx.Eval(sExpressions);
                $"{x}".Print();

                sExpressions = Lisp.Parse("(fib 15)");
                x            = lispCtx.Eval(sExpressions);

                $"{x}".Print();
                Assert.That((int)x, Is.EqualTo(987));
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }
        }
Beispiel #4
0
        public async Task TestDefaultStartingParams()
        {
            var startingParams = new LispNode()
            {
                new LispNode(1),
                new LispNode(0),
                new LispNode(0),
                new LispNode(1),
            };

            var create    = Common.Flatten(await Common.Send(Common.Unflatten(Lisp.Parse("(1 6)")[0])));
            var playerKey = create[1][0][1];

            var tasks = new List <Task <LispNode> >();

            tasks.Add(Common.Send(Common.Unflatten(new LispNode()
            {
                new LispNode(2), create[1][0][1], new LispNode()
            })));
            //tasks.Add(Common.Send(Common.Unflatten(new LispNode() { new LispNode(2), playerKey, new LispNode() })));
            Task.WaitAll(tasks.ToArray());

            var join  = Common.Flatten(tasks[0].Result);
            var start = Common.Flatten(await Common.Send(Common.Unflatten(new LispNode()
            {
                new LispNode(3), playerKey, startingParams
            })));
        }
Beispiel #5
0
 public void TestTreeToList()
 {
     var tree = Lisp.Parse("((cons 0) ((cons ((cons 0) ((cons ((cons 0) nil)) ((cons 0) ((cons nil) nil))))) ((cons ((cons ((cons ((cons -1) -3)) ((cons ((cons 0) -3)) ((cons ((cons 1) -3)) ((cons ((cons 2) -2)) ((cons ((cons -2) -1)) ((cons ((cons -1) -1)) ((cons ((cons 0) -1)) ((cons ((cons 3) -1)) ((cons ((cons -3) 0)) ((cons ((cons -1) 0)) ((cons ((cons 1) 0)) ((cons ((cons 3) 0)) ((cons ((cons -3) 1)) ((cons ((cons 0) 1)) ((cons ((cons 1) 1)) ((cons ((cons 2) 1)) ((cons ((cons -2) 2)) ((cons ((cons -1) 3)) ((cons ((cons 0) 3)) ((cons ((cons 1) 3)) nil))))))))))))))))))))) ((cons ((cons ((cons -7) -3)) ((cons ((cons -8) -2)) nil))) ((cons nil) nil)))) nil)))").Children.First();
     //var tree = Program.Parse("ap ap cons 42 nil");
     //var tree = Program.Parse("ap ap cons 42 ap ap cons ap ap cons 13 ap ap cons 101 nil nil");
     //Console.WriteLine(Program.TreeToJson(tree));
 }
Beispiel #6
0
        public void Can_min_max_int_long_double_values()
        {
            var lispCtx = Lisp.CreateInterpreter();

            Assert.That((int)lispCtx.Eval(Lisp.Parse("(min 1 2)")), Is.EqualTo(1));
            Assert.That((int)lispCtx.Eval(Lisp.Parse("(max 1 2)")), Is.EqualTo(2));

            Assert.That((double)lispCtx.Eval(Lisp.Parse("(min 1.0 2.0)")), Is.EqualTo(1.0));
            Assert.That((double)lispCtx.Eval(Lisp.Parse("(max 1.0 2.0)")), Is.EqualTo(2.0));

            Assert.That((long)lispCtx.Eval(Lisp.Parse($"(min {int.MaxValue + 1L} {int.MaxValue + 2L})")), Is.EqualTo(int.MaxValue + 1L));
            Assert.That((long)lispCtx.Eval(Lisp.Parse($"(max {int.MaxValue + 1L} {int.MaxValue + 2L})")), Is.EqualTo(int.MaxValue + 2L));
        }
Beispiel #7
0
        public void TestSolver()
        {
            var input = "(1 2 () ())";

            Program.MakeStartRequest("123", Lisp.Parse(input)[0]);

            input = "(1 0 (256 0 (512 1 64) (16 128) (350 0 8 1)) ())";
            Program.MakeStartRequest("123", Lisp.Parse(input)[0]);

            input = "(1 1 (256 0 (512 1 64) (16 128) (350 0 8 1)) (0 (16 128) (((1 0 (-48 44) (0 0) (350 0 8 1) 0 64 1) ()) ((0 1 (48 -44) (0 0) (0 16 16 1) 0 64 1) ()))))";
            //var output = Program.MakeCommandsRequest("123", Lisp.Parse(input)[0]);

            //Console.WriteLine(Common.Flatten(output));

            input = "(1 1 (256 0 (512 1 64) (16 128) (416 0 0 16)) (1 (16 128) (((1 0 (-47 -11) (1 -1) (415 0 0 16) 8 64 1) ((0 (0 1)))) ((0 1 (46 9) (-2 -1) (127 8 8 1) 0 64 1) ((0 (1 1)))))))";
            var gameState = Lisp.Parse(input)[0];
            var commands  = Program.MakeCommandsRequest(
                new GameState(gameState[3]),
                new StaticGameState(gameState[2]));

            //Assert.AreEqual(commands[0].Vector.X, -1);
            //Assert.AreEqual(commands[0].Vector.Y, 1);
        }
Beispiel #8
0
    private void ParseTileImages(Lisp.Parser parser, ArrayList ImagesList)
    {
        if(parser.Type == Parser.LispType.END_LIST)
            return;

        int d = parser.Depth;
        do {
            ImageRegion region = new ImageRegion();
            if(parser.Type == Parser.LispType.STRING) {
                region.ImageFile = parser.StringValue;
            } else if(parser.Type == Parser.LispType.START_LIST) {
                ParseImageRegion(parser, region);
            } else {
                throw new Exception("unexpected lisp data: " + parser.Type);
            }
            ImagesList.Add(region);
        } while(parser.Parse() && parser.Depth >= d);
    }
Beispiel #9
0
    private void ParseImageRegion(Lisp.Parser parser, ImageRegion region)
    {
        parser.Parse();
        if(parser.Type != Parser.LispType.SYMBOL)
            throw new Exception("expected symbol");
        if(parser.SymbolValue != "region")
            throw new Exception("expected region symbol");
        parser.Parse();
        if(parser.Type != Parser.LispType.STRING)
            throw new Exception("expected string");
        region.ImageFile = parser.StringValue;

        parser.Parse();
        if(parser.Type != Parser.LispType.INTEGER)
            throw new Exception("expected integer");
        region.Region.X = parser.IntegerValue;

        parser.Parse();
        if(parser.Type != Parser.LispType.INTEGER)
            throw new Exception("expected integer");
        region.Region.Y = parser.IntegerValue;

        parser.Parse();
        if(parser.Type != Parser.LispType.INTEGER)
            throw new Exception("expected integer");
        region.Region.Width = parser.IntegerValue;

        parser.Parse();
        if(parser.Type != Parser.LispType.INTEGER)
            throw new Exception("expected integer");
        region.Region.Height = parser.IntegerValue;

        parser.Parse();
        if(parser.Type != Parser.LispType.END_LIST)
            throw new Exception("expected END_LIST");
    }
Beispiel #10
0
    public void Parse(Lisp.Parser parser)
    {
        int d = parser.Depth;
        while(parser.Parse() && parser.Depth >= d) {
            if(parser.Depth == d+1) {
                if(parser.Type != Parser.LispType.SYMBOL)
                    throw new Exception("expected SYMBOL at single tile deserialization level, but found \"" + parser.StringValue + "\"");
                string symbol = parser.SymbolValue;
                parser.Parse();
                switch(symbol) {
                    case "id":
                        ID = parser.IntegerValue;
                    break;
                    case "images":
                        ParseTileImages(parser, Images);
                        break;
                    case "editor-images":
                        ParseTileImages(parser, EditorImages);
                         break;
                    case "anim-fps":
                        AnimFps = parser.FloatValue;
                        break;
                    case "one-way":
                        OneWayString = parser.StringValue;
                        break;
                    case "data":
                        Data = parser.IntegerValue;
                        break;
                    case "next-tile":
                        NextTile = parser.IntegerValue;
                        break;
                    case "hidden":
                        Hidden = parser.BoolValue;
                        break;
                    case "solid":
                        SetAttribute(Attribute.SOLID, parser.BoolValue);
                        break;
                    case "unisolid":
                        SetAttribute(Attribute.UNISOLID, parser.BoolValue);
                        break;
                    case "ice":
                        SetAttribute(Attribute.ICE, parser.BoolValue);
                        break;
                    case "water":
                        SetAttribute(Attribute.WATER, parser.BoolValue);
                        break;
                    case "slope-type":
                        SetAttribute(Attribute.SLOPE, true);
                        Data = parser.IntegerValue;
                        break;
                    case "hurts":
                        SetAttribute(Attribute.HURTS, parser.BoolValue);
                        break;
                    case "fire":
                        SetAttribute(Attribute.FIRE, parser.BoolValue);
                        break;
                    case "brick":
                        SetAttribute(Attribute.BRICK, parser.BoolValue);
                        break;
                    case "fullbox":
                        SetAttribute(Attribute.FULLBOX, parser.BoolValue);
                        break;
                    case "coin":
                        SetAttribute(Attribute.COIN, parser.BoolValue);
                        break;
                    case "goal":
                        SetAttribute(Attribute.GOAL, parser.BoolValue);
                        break;

        //Worldmap attributes section - these are stored in Data
                    case "north":
                        SetWMAttribute(Attribute.WORLDMAP_NORTH, parser.BoolValue);
                        break;
                    case "south":
                        SetWMAttribute(Attribute.WORLDMAP_SOUTH, parser.BoolValue);
                        break;
                    case "west":
                        SetWMAttribute(Attribute.WORLDMAP_WEST, parser.BoolValue);
                        break;
                    case "east":
                        SetWMAttribute(Attribute.WORLDMAP_EAST, parser.BoolValue);
                        break;
                    case "stop":
                        SetWMAttribute(Attribute.WORLDMAP_STOP, parser.BoolValue);
                        break;
                    default:
                        Console.WriteLine("Unknown tile element " + symbol);
                        break;
                }
            }
        }
    }
Beispiel #11
0
 private void SkipList(Lisp.Parser parser)
 {
     int d = parser.Depth;
     while(parser.Parse() && parser.Depth >= d)
         ;
 }
Beispiel #12
0
    public void ParseTiles(Lisp.Parser parser)
    {
        isNew = false;
        int d = parser.Depth;
        while(parser.Parse() && parser.Depth >= d) {
            if(parser.Depth == d && parser.Type != Parser.LispType.START_LIST) {
                Console.WriteLine("non-cons type in list...");
                continue;
            }

            if(parser.Depth == d+1) {
                if(parser.Type != Parser.LispType.SYMBOL) {
                    throw new Exception("Expected symbol in list element");
                }
                switch(parser.SymbolValue) {
                    case "properties":
                        SkipList(parser);
                        break;
                    case "tilegroup":
                        TileGroup tilegroup = new TileGroup();
                        tilegroup.Parse(parser);
                        TileGroups.Add(tilegroup);
                        break;
                    case "tile":
                        Tile tile = new Tile();
                        tile.Parse(parser);

                        while(tile.ID >= Tiles.Count)
                            Tiles.Add(null);
                        Tiles[tile.ID] = tile;
                        break;
                    case "tiles":
            ParseMoreTiles(parser);
            isNew = true;
                        break;
                   default:
                        throw new Exception("Unexpected listentry: " +
                                parser.SymbolValue);
                }
            }
        }
    }
Beispiel #13
0
    public void ParseMoreTiles(Lisp.Parser parser)
    {
        int blockWidth = 0;
        int blockHeight = 0;
        List<int> ids = new List<int>();
        List<int> attributes = new List<int>();
        List<int> datas = new List<int>();
        List<string> imageNames = new List<string>();
        float animFps = 0;

        int d = parser.Depth;
        while(parser.Parse() && parser.Depth >= d) {
            if(parser.Depth == d+1) {
                if(parser.Type != Parser.LispType.SYMBOL)
                    throw new Exception("expected SYMBOL at supertux-tiles---tiles level, but got \"" + parser.StringValue + "\"");
                string symbol = parser.SymbolValue;
                parser.Parse();
                switch(symbol) {
                    case "width":
                        blockWidth = parser.IntegerValue;
                        break;
                    case "height":
                        blockHeight = parser.IntegerValue;
                        break;
                    case "ids":
                        Parser.ParseIntList(parser, ids);
                        break;
                    case "attributes":
                        Parser.ParseIntList(parser, attributes);
                        break;
                    case "datas":
                        Parser.ParseIntList(parser, datas);
                        break;
                    case "anim-fps":
                        animFps = parser.FloatValue;
                        break;
                    case "image":
                        int subDepth = parser.Depth;
                        while(parser.Depth >= subDepth) {
                            imageNames.Add(parser.StringValue);
                            parser.Parse();
                        }
                        break;
                    default:
                        Console.WriteLine("Unknown tiles element " + symbol);
                        break;
                }
            }
        }
        if(ids.Count != blockWidth * blockHeight)
            throw new ApplicationException("Must have width*height ids in tiles block, but found " + ids.Count.ToString());
        if((attributes.Count != blockWidth * blockHeight) && attributes.Count > 0)	//missing atributes == all-are-0-attributes
            throw new ApplicationException("Must have width*height attributes in tiles block");
        if((datas.Count != blockWidth * blockHeight) && datas.Count > 0)	//missing DATAs == all-are-0-DATAs
            throw new ApplicationException("Must have width*height DATAs in tiles block");

        int id = 0;
        for(int y = 0; y < blockHeight; ++y) {
            for(int x = 0; x < blockWidth; ++x) {
                if (ids[id] != 0) {
                    Tile tile = new Tile();

                    tile.Images = new ArrayList();
                    foreach (string str in imageNames)
                    {
                        ImageRegion region = new ImageRegion();
                        region.ImageFile = str;
                        region.Region.X = x * TILE_WIDTH;
                        region.Region.Y = y * TILE_HEIGHT;
                        region.Region.Width = TILE_WIDTH;
                        region.Region.Height = TILE_HEIGHT;
                        tile.Images.Add(region);
                    }
                    tile.ID = ids[id];
                    tile.Attributes = (attributes.Count > 0)?attributes[id]:0;	//missing atributes == all-are-0-attributes
                    tile.Data = (datas.Count > 0)?datas[id]:0;	//missing DATAs == all-are-0-DATAs
                    tile.AnimFps = animFps;

                    while(Tiles.Count <= tile.ID)
                        Tiles.Add(null);

                    Tiles[tile.ID] = tile;
                }

                id++;
            }
        }
    }
Beispiel #14
0
 public void Parse(Lisp.Parser parser)
 {
     int d = parser.Depth;
     while(parser.Parse() && parser.Depth >= d) {
         if(parser.Depth == d+1) {
             if(parser.Type != Parser.LispType.SYMBOL)
                 throw new Exception("expected SYMBOL");
             string symbol = parser.SymbolValue;
             parser.Parse();
             switch(symbol) {
                 case "id":
                     ID = parser.IntegerValue;
                 break;
                 case "images":
                     ParseTileImages(parser);
                     break;
                 case "editor-images":
                     EditorImage = parser.StringValue;
                     break;
                 case "solid":
                     Solid = parser.BoolValue;
                     break;
                 case "unisolid":
                     UniSolid = parser.BoolValue;
                     break;
                 case "ice":
                     Ice = parser.BoolValue;
                     break;
                 case "water":
                     Water = parser.BoolValue;
                     break;
                 case "slope-type":
                     Slope = true;
                     Data = parser.IntegerValue;
                     break;
                 case "anim-fps":
                     AnimFps = parser.FloatValue;
                     break;
                 case "hurts":
                     Hurts = parser.BoolValue;
                     break;
                 case "hidden":
                     Hidden = parser.BoolValue;
                     break;
                 case "data":
                     Data = parser.IntegerValue;
                     break;
                 case "next-tile":
                     NextTile = parser.IntegerValue;
                     break;
                 case "brick":
                     Brick = parser.BoolValue;
                     break;
                 case "fullbox":
                     FullBox = parser.BoolValue;
                     break;
                 case "coin":
                     Coin = parser.BoolValue;
                     break;
                 case "goal":
                     Goal = parser.BoolValue;
                     break;
                 default:
                     Console.WriteLine("Unknown tile element " + symbol);
                     break;
             }
         }
     }
 }
Beispiel #15
0
        public void Can_eval_lisp_in_lisp()
        {
            var lisp = @"
;;; A circular Lisp interpreter in Common/Emacs/Nukata Lisp
;;;    by SUZUKI Hisao on H28.8/10, H29.3/13
;;;    cf. Zick Standard Lisp (https://github.com/zick/ZickStandardLisp)

(progn
  ;; Expr: (EXPR environment (symbol...) expression...)
  ;; Subr: (SUBR . function)
  ;; Environment: ((symbol . value)...)
  ;; N.B. Expr has its own environment since this Lisp is lexically scoped.

  ;; Language-specific Hacks
  (setq funcall (lambda (f x) (f x)))  ; for Nukata Lisp and this Lisp
  (setq max-lisp-eval-depth 10000)     ; for Emacs Lisp
  (setq max-specpdl-size 7000)         ; for Emacs Lisp

  ;; The global environment of this Lisp
  (setq global-env
        (list '(*version* . (1.2 ""Lisp"" ""circlisp""))
              (cons 'car
                    (cons 'SUBR (lambda (x) (car (car x)))))
              (cons 'cdr
                    (cons 'SUBR (lambda (x) (cdr (car x)))))
              (cons 'cons
                    (cons 'SUBR (lambda (x) (cons (car x) (cadr% x)))))
              (cons 'eq
                    (cons 'SUBR (lambda (x) (eq (car x) (cadr% x)))))
              (cons 'atom
                    (cons 'SUBR (lambda (x) (atom (car x)))))
              (cons 'rplaca
                    (cons 'SUBR (lambda (x) (rplaca (car x) (cadr% x)))))
              (cons 'rplacd
                    (cons 'SUBR (lambda (x) (rplacd (car x) (cadr% x)))))
              (cons 'list
                    (cons 'SUBR (lambda (x) x)))
              (cons '+
                    (cons 'SUBR (lambda (x) (+ (car x) (cadr% x)))))
              (cons '*
                    (cons 'SUBR (lambda (x) (* (car x) (cadr% x)))))
              (cons '-
                    (cons 'SUBR (lambda (x) (- (car x) (cadr% x)))))
              (cons 'truncate
                    (cons 'SUBR (lambda (x) (truncate (car x) (cadr% x)))))
              (cons 'mod
                    (cons 'SUBR (lambda (x) (mod (car x) (cadr% x)))))
              (cons '=
                    (cons 'SUBR (lambda (x) (= (car x) (cadr% x)))))
              (cons '<
                    (cons 'SUBR (lambda (x) (< (car x) (cadr% x)))))
              (cons 'print
                    (cons 'SUBR (lambda (x) (print (car x)))))
              (cons 'apply
                    (cons 'SUBR (lambda (x) (apply% (car x) (cadr% x)))))
              (cons 'eval
                    (cons 'SUBR (lambda (x) (eval% (car x) global-env))))))

  (defun caar% (x) (car (car x)))
  (defun cadr% (x) (car (cdr x)))
  (defun cddr% (x) (cdr (cdr x)))
  (defun caddr% (x) (car (cdr (cdr x))))
  (defun cdddr% (x) (cdr (cdr (cdr x))))
  (defun cadddr% (x) (car (cdr (cdr (cdr x)))))

  (defun assq% (key alist)              ; cf. Emacs/Nukata Lisp
    (if alist
        (if (eq key (caar% alist))
            (car alist)
          (assq% key (cdr alist)))
      nil))

  (defun pairlis% (keys data alist)     ; cf. Common Lisp
    (if keys
        (cons (cons (car keys) (car data))
              (pairlis% (cdr keys) (cdr data) alist))
      alist))

  ;; Define symbol as value in the global environment.
  (defun global-def (sym val)
    (rplacd global-env
            (cons (car global-env)
                  (cdr global-env)))
    (rplaca global-env
            (cons sym val)))

  (defun eval% (e env)
    (if (atom e)
        ((lambda (var)
           (if var
               (cdr var)
             e))
         (assq% e env))
      (if (eq (car e) 'quote)           ; (quote e)
          (cadr% e)
        (if (eq (car e) 'if)            ; (if e e e)
            (if (eval% (cadr% e) env)
                (eval% (caddr% e) env)
              (eval% (cadddr% e) env))
          (if (eq (car e) 'progn)       ; (progn e...)
              (eval-progn (cdr e) env nil)
            (if (eq (car e) 'lambda)    ; (lambda (v...) e...)
                (make-closure env (cdr e))
              (if (eq (car e) 'defun)   ; (defun f (v...) e...)
                  (global-def (cadr% e)
                              (make-closure env (cddr% e)))
                (if (eq (car e) 'setq)  ; (setq v e)
                    ((lambda (var value)
                       (if var
                           (rplacd var value)
                         (global-def (cadr% e) value))
                       value)
                     (assq% (cadr% e) env)
                     (eval% (caddr% e) env))
                  (apply% (eval% (car e) env) ; (f e...)
                          (evlis (cdr e) env))))))))))

  ;; (make-closure env '((v...) e...)) => (EXPR env (v...) e...)
  (defun make-closure (env ve)
    (cons 'EXPR
          (cons env ve)))

  ;; (eval-progn '((+ 1 2) 3 (+ 4 5)) global-env nil) => 9
  (defun eval-progn (x env result)
    (if x
        (if (cdr x)
            (eval-progn (cdr x)
                        env
                        (eval% (car x) env))
          (eval% (car x) env))
      result))

  ;; (evlis '((+ 1 2) 3 (+ 4 5)) global-env) => (3 3 9)
  (defun evlis (x env)
    (if x
        (cons (eval% (car x) env)
              (evlis (cdr x) env))
      nil))

  (defun apply% (fun arg)
    (if (eq (car fun) 'EXPR)            ; (EXPR env (v...) e...)
        (eval-progn (cdddr% fun)
                    (pairlis% (caddr% fun)
                              arg
                              (cadr% fun))
                    nil)
      (if (eq (car fun) 'SUBR)          ; (SUBR . f)
          (funcall (cdr fun) arg)
        fun)))

  (defun global-eval (e)
    (eval% e global-env))

  (global-eval (quote

;; -- WRITE YOUR EXPRESSION HERE --
(progn
  (defun fib (n)
    (if (< n 2)
        1
      (+ (fib (- n 1))
         (fib (- n 2)))))
  (print (fib 10)))
;; --------------------------------
)))
";

            try
            {
                var lispCtx = Lisp.CreateInterpreter();

                var sExpressions = Lisp.Parse(lisp);
                var x            = lispCtx.Eval(sExpressions);
                Assert.That((int)x, Is.EqualTo(89));
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }
        }
Beispiel #16
0
 public PathNode(Lisp.Parser parser)
 {
     int d = parser.Depth;
     while (parser.Parse() && parser.Depth >= d) {
         if (parser.Depth == d + 1) {
             if (parser.Type != Lisp.Parser.LispType.SYMBOL) throw new Exception("expected SYMBOL");
             string symbol = parser.SymbolValue;
             parser.Parse();
             switch (symbol) {
                 case "x":
                     this.x = parser.FloatValue;
                     break;
                 case "y":
                     this.x = parser.FloatValue;
                     break;
                 case "time":
                     this.x = parser.FloatValue;
                     break;
                 default:
                     throw new Exception("Unknown Token in Path Node");
             }
         }
     }
 }