Operations are now Garbage Collected!

README.md

@@ -75,11 +75,8 @@ Yatta! is still in an early development phase. Don't expect that everything is w
 But I would become really motivated if you gave me some feedback :) ([github](https://github.com/DadaMonad/Yatta/issues)).
 
 ### Current Issues
-Currently, I don't perform Garbage Collection. Therefore, the space requirement will never decrease.
-* Garbage Collection
 * XML support
 
-
 ## Support
 Please report any issues to the [Github issue page](https://github.com/DadaMonad/Yatta/issues)!
 

build/node/Connectors/TestConnector.js

@@ -27,6 +27,7 @@
         if (!((user_list != null ? user_list.length : void 0) === 0)) {
           this.engine.applyOps(user_list[0].getHistoryBuffer()._encode());
         }
+        this.HB.setManualGarbageCollect();
         this.unexecuted = {};
       }
 

build/node/Connectors/TestConnector.js.map

@@ -1 +1 @@
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+{"version":3,"sources":["Connectors/TestConnector.coffee"],"names":[],"mappings":"AACA;AAAA,MAAA,CAAA;;AAAA,EAAA,CAAA,GAAI,OAAA,CAAQ,YAAR,CAAJ,CAAA;;AAAA,EAEA,MAAM,CAAC,OAAP,GAAiB,SAAC,SAAD,GAAA;AAMf,QAAA,aAAA;WAAM;AAQS,MAAA,uBAAE,MAAF,EAAW,EAAX,EAAgB,kBAAhB,GAAA;AACX,YAAA,gCAAA;AAAA,QADY,IAAC,CAAA,SAAA,MACb,CAAA;AAAA,QADqB,IAAC,CAAA,KAAA,EACtB,CAAA;AAAA,QAD0B,IAAC,CAAA,qBAAA,kBAC3B,CAAA;AAAA,QAAA,KAAA,GAAQ,CAAA,SAAA,KAAA,GAAA;iBAAA,SAAC,CAAD,GAAA;mBACN,KAAC,CAAA,IAAD,CAAM,CAAN,EADM;UAAA,EAAA;QAAA,CAAA,CAAA,CAAA,IAAA,CAAR,CAAA;AAAA,QAEA,IAAC,CAAA,kBAAkB,CAAC,IAApB,CAAyB,KAAzB,CAFA,CAAA;AAAA,QAIA,IAAC,CAAA,kBAAD,GAAsB,EAJtB,CAAA;AAAA,QAKA,yBAAA,GAA4B,CAAA,SAAA,KAAA,GAAA;iBAAA,SAAC,CAAD,GAAA;mBAC1B,KAAC,CAAA,kBAAkB,CAAC,IAApB,CAAyB,CAAzB,EAD0B;UAAA,EAAA;QAAA,CAAA,CAAA,CAAA,IAAA,CAL5B,CAAA;AAAA,QAOA,IAAC,CAAA,kBAAkB,CAAC,IAApB,CAAyB,yBAAzB,CAPA,CAAA;AAQA,QAAA,IAAG,CAAA,sBAAK,SAAS,CAAE,gBAAX,KAAqB,CAAtB,CAAP;AACE,UAAA,IAAC,CAAA,MAAM,CAAC,QAAR,CAAiB,SAAU,CAAA,CAAA,CAAE,CAAC,gBAAb,CAAA,CAA+B,CAAC,OAAhC,CAAA,CAAjB,CAAA,CADF;SARA;AAAA,QAWA,IAAC,CAAA,EAAE,CAAC,uBAAJ,CAAA,CAXA,CAAA;AAAA,QAYA,IAAC,CAAA,UAAD,GAAc,EAZd,CADW;MAAA,CAAb;;AAAA,8BAmBA,sBAAA,GAAwB,SAAA,GAAA;eACtB,IAAC,CAAA,mBADqB;MAAA,CAnBxB,CAAA;;AAAA,8BA0BA,IAAA,GAAM,SAAC,CAAD,GAAA;AACJ,YAAA,wBAAA;AAAA,QAAA,IAAG,CAAC,CAAC,CAAC,GAAG,CAAC,OAAN,KAAiB,IAAC,CAAA,EAAE,CAAC,SAAJ,CAAA,CAAlB,CAAA,IAAuC,CAAC,MAAA,CAAA,CAAQ,CAAC,GAAG,CAAC,SAAb,KAA4B,QAA7B,CAA1C;AACE;eAAA,gDAAA;iCAAA;AACE,YAAA,IAAG,IAAI,CAAC,SAAL,CAAA,CAAA,KAAsB,IAAC,CAAA,EAAE,CAAC,SAAJ,CAAA,CAAzB;4BACE,IAAI,CAAC,YAAL,CAAA,CAAmB,CAAC,OAApB,CAA4B,CAA5B,GADF;aAAA,MAAA;oCAAA;aADF;AAAA;0BADF;SADI;MAAA,CA1BN,CAAA;;AAAA,8BAoCA,OAAA,GAAS,SAAC,CAAD,GAAA;AACP,YAAA,YAAA;;yBAA8B;SAA9B;eACA,IAAC,CAAA,UAAW,CAAA,CAAC,CAAC,GAAG,CAAC,OAAN,CAAc,CAAC,IAA3B,CAAgC,CAAhC,EAFO;MAAA,CApCT,CAAA;;AAAA,8BA2CA,QAAA,GAAU,SAAC,IAAD,GAAA;AACR,YAAA,IAAA;AAAA,QAAA,kDAAoB,CAAE,gBAAnB,GAA4B,CAA/B;iBACE,IAAC,CAAA,MAAM,CAAC,OAAR,CAAgB,IAAC,CAAA,UAAW,CAAA,IAAA,CAAK,CAAC,KAAlB,CAAA,CAAhB,EADF;SADQ;MAAA,CA3CV,CAAA;;AAAA,8BAkDA,cAAA,GAAgB,SAAA,GAAA;eACd,IAAC,CAAA,QAAD,CAAW,CAAC,CAAC,MAAF,CAAS,CAAT,EAAa,SAAS,CAAC,MAAV,GAAiB,CAA9B,CAAX,EADc;MAAA,CAlDhB,CAAA;;AAAA,8BAwDA,QAAA,GAAU,SAAA,GAAA;AACR,YAAA,YAAA;AAAA;AAAA,aAAA,SAAA;wBAAA;AACE,UAAA,IAAC,CAAA,MAAM,CAAC,QAAR,CAAiB,GAAjB,CAAA,CADF;AAAA,SAAA;eAEA,IAAC,CAAA,UAAD,GAAc,GAHN;MAAA,CAxDV,CAAA;;2BAAA;;SAda;EAAA,CAFjB,CAAA;AAAA","file":"Connectors/TestConnector.js","sourceRoot":"/source/","sourcesContent":["\n_ = require \"underscore\"\n\nmodule.exports = (user_list)->\n\n  #\n  # @nodoc\n  # A trivial Connector that simulates network delay.\n  #\n  class TestConnector\n\n    #\n    # @param {Engine} engine The transformation engine\n    # @param {HistoryBuffer} HB\n    # @param {Array<Function>} execution_listener You must ensure that whenever an operation is executed, every function in this Array is called.\n    # @param {Yatta} yatta The Yatta framework.\n    #\n    constructor: (@engine, @HB, @execution_listener)->\n      send_ = (o)=>\n        @send o\n      @execution_listener.push send_\n\n      @applied_operations = []\n      appliedOperationsListener = (o)=>\n        @applied_operations.push o\n      @execution_listener.push appliedOperationsListener\n      if not (user_list?.length is 0)\n        @engine.applyOps user_list[0].getHistoryBuffer()._encode()\n\n      @HB.setManualGarbageCollect()\n      @unexecuted = {}\n\n    #\n    # This engine applied operations in a specific order.\n    # Get the ops in the right order.\n    #\n    getOpsInExecutionOrder: ()->\n      @applied_operations\n\n    #\n    # This function is called whenever an operation was executed.\n    # @param {Operation} o The operation that was executed.\n    #\n    send: (o)->\n      if (o.uid.creator is @HB.getUserId()) and (typeof o.uid.op_number isnt \"string\")\n        for user in user_list\n          if user.getUserId() isnt @HB.getUserId()\n            user.getConnector().receive(o)\n\n    #\n    # This function is called whenever an operation was received from another peer.\n    # @param {Operation} o The operation that was received.\n    #\n    receive: (o)->\n      @unexecuted[o.uid.creator] ?= []\n      @unexecuted[o.uid.creator].push o\n\n    #\n    # Flush one operation from the line of a specific user.\n    #\n    flushOne: (user)->\n      if @unexecuted[user]?.length > 0\n        @engine.applyOp @unexecuted[user].shift()\n\n    #\n    # Flush one operation on a random line.\n    #\n    flushOneRandom: ()->\n      @flushOne (_.random 0, (user_list.length-1))\n\n    #\n    # Flush all operations on every line.\n    #\n    flushAll: ()->\n      for n,ops of @unexecuted\n        @engine.applyOps ops\n      @unexecuted = {}\n\n"]}

build/node/Frameworks/JsonFramework.js

@@ -9,19 +9,26 @@
 
   JsonFramework = (function() {
     function JsonFramework(user_id, Connector) {
-      var first_word, type_manager;
+      var beg, end, first_word, type_manager, uid_beg, uid_end;
       this.HB = new HistoryBuffer(user_id);
       type_manager = json_types_uninitialized(this.HB);
       this.types = type_manager.types;
       this.engine = new Engine(this.HB, type_manager.parser);
+      this.HB.engine = this.engine;
       this.connector = new Connector(this.engine, this.HB, type_manager.execution_listener, this);
       first_word = new this.types.JsonType(this.HB.getReservedUniqueIdentifier());
       this.HB.addOperation(first_word).execute();
-      this.root_element = first_word;
+      uid_beg = this.HB.getReservedUniqueIdentifier();
+      uid_end = this.HB.getReservedUniqueIdentifier();
+      beg = this.HB.addOperation(new this.types.Delimiter(uid_beg, void 0, uid_end)).execute();
+      end = this.HB.addOperation(new this.types.Delimiter(uid_end, beg, void 0)).execute();
+      this.root_element = new this.types.ReplaceManager(void 0, this.HB.getReservedUniqueIdentifier(), beg, end);
+      this.HB.addOperation(this.root_element).execute();
+      this.root_element.replace(first_word, this.HB.getReservedUniqueIdentifier());
     }
 
     JsonFramework.prototype.getSharedObject = function() {
-      return this.root_element;
+      return this.root_element.val();
     };
 
     JsonFramework.prototype.getConnector = function() {
@@ -33,7 +40,7 @@
     };
 
     JsonFramework.prototype.setMutableDefault = function(mutable) {
-      return this.root_element.setMutableDefault(mutable);
+      return this.getSharedObject().setMutableDefault(mutable);
     };
 
     JsonFramework.prototype.getUserId = function() {
@@ -41,26 +48,26 @@
     };
 
     JsonFramework.prototype.toJson = function() {
-      return this.root_element.toJson();
+      return this.getSharedObject().toJson();
     };
 
     JsonFramework.prototype.val = function(name, content, mutable) {
-      return this.root_element.val(name, content, mutable);
+      return this.getSharedObject().val(name, content, mutable);
     };
 
     JsonFramework.prototype.on = function() {
       var _ref;
-      return (_ref = this.root_element).on.apply(_ref, arguments);
+      return (_ref = this.getSharedObject()).on.apply(_ref, arguments);
     };
 
     JsonFramework.prototype.deleteListener = function() {
       var _ref;
-      return (_ref = this.root_element).deleteListener.apply(_ref, arguments);
+      return (_ref = this.getSharedObject()).deleteListener.apply(_ref, arguments);
     };
 
     Object.defineProperty(JsonFramework.prototype, 'value', {
       get: function() {
-        return this.root_element.value;
+        return this.getSharedObject().value;
       },
       set: function(o) {
         var o_name, o_obj, _results;

build/node/HistoryBuffer.js

@@ -1,34 +1,96 @@
 (function() {
-  var HistoryBuffer;
+  var HistoryBuffer,
+    __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
 
   HistoryBuffer = (function() {
     function HistoryBuffer(user_id) {
       this.user_id = user_id;
+      this.emptyGarbage = __bind(this.emptyGarbage, this);
       this.operation_counter = {};
       this.buffer = {};
       this.change_listeners = [];
+      this.garbage = [];
+      this.trash = [];
+      this.performGarbageCollection = true;
+      this.garbageCollectTimeout = 1000;
+      this.reserved_identifier_counter = 0;
+      setTimeout(this.emptyGarbage, this.garbageCollectTimeout);
     }
 
+    HistoryBuffer.prototype.emptyGarbage = function() {
+      var o, _i, _len, _ref;
+      _ref = this.garbage;
+      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+        o = _ref[_i];
+        if (typeof o.cleanup === "function") {
+          o.cleanup();
+        }
+      }
+      this.garbage = this.trash;
+      this.trash = [];
+      if (this.garbageCollectTimeout !== -1) {
+        this.garbageCollectTimeoutId = setTimeout(this.emptyGarbage, this.garbageCollectTimeout);
+      }
+      return void 0;
+    };
+
     HistoryBuffer.prototype.getUserId = function() {
       return this.user_id;
     };
 
+    HistoryBuffer.prototype.addToGarbageCollector = function() {
+      var o, _i, _len, _results;
+      if (this.performGarbageCollection) {
+        _results = [];
+        for (_i = 0, _len = arguments.length; _i < _len; _i++) {
+          o = arguments[_i];
+          if (o != null) {
+            _results.push(this.garbage.push(o));
+          } else {
+            _results.push(void 0);
+          }
+        }
+        return _results;
+      }
+    };
+
+    HistoryBuffer.prototype.stopGarbageCollection = function() {
+      this.performGarbageCollection = false;
+      this.setManualGarbageCollect();
+      this.garbage = [];
+      return this.trash = [];
+    };
+
+    HistoryBuffer.prototype.setManualGarbageCollect = function() {
+      this.garbageCollectTimeout = -1;
+      clearTimeout(this.garbageCollectTimeoutId);
+      return this.garbageCollectTimeoutId = void 0;
+    };
+
+    HistoryBuffer.prototype.setGarbageCollectTimeout = function(garbageCollectTimeout) {
+      this.garbageCollectTimeout = garbageCollectTimeout;
+    };
+
     HistoryBuffer.prototype.getReservedUniqueIdentifier = function() {
       return {
         creator: '_',
-        op_number: '_'
+        op_number: "_" + (this.reserved_identifier_counter++)
       };
     };
 
-    HistoryBuffer.prototype.getOperationCounter = function() {
+    HistoryBuffer.prototype.getOperationCounter = function(user_id) {
       var ctn, res, user, _ref;
-      res = {};
+      if (user_id == null) {
-      _ref = this.operation_counter;
+        res = {};
-      for (user in _ref) {
+        _ref = this.operation_counter;
-        ctn = _ref[user];
+        for (user in _ref) {
-        res[user] = ctn;
+          ctn = _ref[user];
+          res[user] = ctn;
+        }
+        return res;
+      } else {
+        return this.operation_counter[user_id];
       }
-      return res;
     };
 
     HistoryBuffer.prototype._encode = function(state_vector) {
@@ -48,7 +110,7 @@
         user = _ref[u_name];
         for (o_number in user) {
           o = user[o_number];
-          if ((!isNaN(parseInt(o_number))) && unknown(u_name, o_number)) {
+          if (o.doSync && unknown(u_name, o_number)) {
             o_json = o._encode();
             if (o.next_cl != null) {
               o_next = o.next_cl;
@@ -108,6 +170,11 @@
       return o;
     };
 
+    HistoryBuffer.prototype.removeOperation = function(o) {
+      var _ref;
+      return (_ref = this.buffer[o.creator]) != null ? delete _ref[o.op_number] : void 0;
+    };
+
     HistoryBuffer.prototype.addToCounter = function(o) {
       var _results;
       if (this.operation_counter[o.creator] == null) {

build/node/Types/BasicTypes.js

@@ -9,12 +9,18 @@
     execution_listener = [];
     Operation = (function() {
       function Operation(uid) {
-        if (uid == null) {
+        this.is_deleted = false;
+        this.doSync = true;
+        if (uid != null) {
+          this.doSync = !isNaN(parseInt(uid.op_number));
+        } else {
           uid = HB.getNextOperationIdentifier();
         }
         this.creator = uid['creator'], this.op_number = uid['op_number'];
       }
 
+      Operation.prototype.type = "Insert";
+
       Operation.prototype.on = function(events, f) {
         var e, _base, _i, _len, _results;
         if (this.event_listeners == null) {
@@ -71,6 +77,26 @@
         }
       };
 
+      Operation.prototype.isDeleted = function() {
+        return this.is_deleted;
+      };
+
+      Operation.prototype.applyDelete = function(garbagecollect) {
+        if (garbagecollect == null) {
+          garbagecollect = true;
+        }
+        if (!this.isDeleted()) {
+          this.is_deleted = true;
+          if (garbagecollect) {
+            return HB.addToGarbageCollector(this);
+          }
+        }
+      };
+
+      Operation.prototype.cleanup = function() {
+        return HB.removeOperation(this);
+      };
+
       Operation.prototype.setParent = function(parent) {
         this.parent = parent;
       };
@@ -82,10 +108,15 @@
       Operation.prototype.getUid = function() {
         return {
           'creator': this.creator,
-          'op_number': this.op_number
+          'op_number': this.op_number,
+          'sync': this.doSync
         };
       };
 
+      Operation.prototype.dontSync = function() {
+        return this.doSync = false;
+      };
+
       Operation.prototype.execute = function() {
         var l, _i, _len;
         this.is_executed = true;
@@ -140,6 +171,8 @@
         Delete.__super__.constructor.call(this, uid);
       }
 
+      Delete.prototype.type = "Delete";
+
       Delete.prototype._encode = function() {
         return {
           'type': "Delete",
@@ -179,19 +212,47 @@
         Insert.__super__.constructor.call(this, uid);
       }
 
+      Insert.prototype.type = "Insert";
+
       Insert.prototype.applyDelete = function(o) {
+        var garbagecollect;
         if (this.deleted_by == null) {
           this.deleted_by = [];
         }
-        this.deleted_by.push(o);
+        if ((this.parent != null) && !this.isDeleted()) {
-        if ((this.parent != null) && this.deleted_by.length === 1) {
+          this.parent.callEvent("delete", this);
-          return this.parent.callEvent("delete", this);
         }
+        if (o != null) {
+          this.deleted_by.push(o);
+        }
+        garbagecollect = false;
+        if (this.prev_cl.isDeleted()) {
+          garbagecollect = true;
+        } else if (this.next_cl.isDeleted()) {
+          this.next_cl.applyDelete();
+        }
+        return Insert.__super__.applyDelete.call(this, garbagecollect);
       };
 
-      Insert.prototype.isDeleted = function() {
+      Insert.prototype.cleanup = function() {
-        var _ref;
+        var d, o, _i, _len, _ref;
-        return ((_ref = this.deleted_by) != null ? _ref.length : void 0) > 0;
+        if (this.prev_cl.isDeleted()) {
+          _ref = this.deleted_by;
+          for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+            d = _ref[_i];
+            d.cleanup();
+          }
+          o = this.next_cl;
+          while (o.type !== "Delimiter") {
+            if (o.origin === this) {
+              o.origin = this.prev_cl;
+            }
+            o = o.next_cl;
+          }
+          this.prev_cl.next_cl = this.next_cl;
+          this.next_cl.prev_cl = this.prev_cl;
+          return Insert.__super__.cleanup.apply(this, arguments);
+        }
       };
 
       Insert.prototype.getDistanceToOrigin = function() {
@@ -203,53 +264,21 @@
             break;
           }
           d++;
-          if (this === this.prev_cl) {
-            throw new Error("this should not happen ;) ");
-          }
           o = o.prev_cl;
         }
         return d;
       };
 
-      Insert.prototype.update_sl = function() {
-        var o;
-        o = this.prev_cl;
-        ({
-          update: function(dest_cl, dest_sl) {
-            var _results;
-            _results = [];
-            while (true) {
-              if (o.isDeleted()) {
-                _results.push(o = o[dest_cl]);
-              } else {
-                this[dest_sl] = o;
-                break;
-              }
-            }
-            return _results;
-          }
-        });
-        update("prev_cl", "prev_sl");
-        return update("next_cl", "prev_sl");
-      };
-
       Insert.prototype.execute = function() {
-        var distance_to_origin, i, o, parent, _ref, _ref1, _ref2;
+        var distance_to_origin, i, o, parent, _ref;
-        if (this.is_executed != null) {
-          return this;
-        }
         if (!this.validateSavedOperations()) {
           return false;
         } else {
-          if (((_ref = this.prev_cl) != null ? _ref.validateSavedOperations() : void 0) && ((_ref1 = this.next_cl) != null ? _ref1.validateSavedOperations() : void 0) && this.prev_cl.next_cl !== this) {
+          if (this.prev_cl != null) {
-            distance_to_origin = 0;
+            distance_to_origin = this.getDistanceToOrigin();
             o = this.prev_cl.next_cl;
-            i = 0;
+            i = distance_to_origin;
             while (true) {
-              if (o == null) {
-                console.log(JSON.stringify(this.prev_cl.getUid()));
-                console.log(JSON.stringify(this.next_cl.getUid()));
-              }
               if (o !== this.next_cl) {
                 if (o.getDistanceToOrigin() === i) {
                   if (o.creator < this.creator) {
@@ -278,7 +307,7 @@
             this.prev_cl.next_cl = this;
             this.next_cl.prev_cl = this;
           }
-          parent = (_ref2 = this.prev_cl) != null ? _ref2.getParent() : void 0;
+          parent = (_ref = this.prev_cl) != null ? _ref.getParent() : void 0;
           if (parent != null) {
             this.setParent(parent);
             this.parent.callEvent("insert", this);
@@ -295,7 +324,7 @@
           if (prev instanceof Delimiter) {
             break;
           }
-          if ((prev.isDeleted != null) && !prev.isDeleted()) {
+          if (!prev.isDeleted()) {
             position++;
           }
           prev = prev.prev_cl;
@@ -314,6 +343,8 @@
         ImmutableObject.__super__.constructor.call(this, uid, prev, next, origin);
       }
 
+      ImmutableObject.prototype.type = "ImmutableObject";
+
       ImmutableObject.prototype.val = function() {
         return this.content;
       };
@@ -331,15 +362,15 @@
         if (this.next_cl != null) {
           json['next'] = this.next_cl.getUid();
         }
-        if ((this.origin != null) && this.origin !== this.prev_cl) {
+        if (this.origin != null) {
-          json["origin"] = this.origin.getUid();
+          json["origin"] = this.origin().getUid();
         }
         return json;
       };
 
       return ImmutableObject;
 
-    })(Insert);
+    })(Operation);
     parser['ImmutableObject'] = function(json) {
       var content, next, origin, prev, uid;
       uid = json['uid'], content = json['content'], prev = json['prev'], next = json['next'], origin = json['origin'];
@@ -355,8 +386,21 @@
         Delimiter.__super__.constructor.call(this, uid);
       }
 
-      Delimiter.prototype.isDeleted = function() {
+      Delimiter.prototype.type = "Delimiter";
-        return false;
+
+      Delimiter.prototype.applyDelete = function() {
+        var o;
+        Delimiter.__super__.applyDelete.call(this);
+        o = this.next_cl;
+        while (o != null) {
+          o.applyDelete();
+          o = o.next_cl;
+        }
+        return void 0;
+      };
+
+      Delimiter.prototype.cleanup = function() {
+        return Delimiter.__super__.cleanup.call(this);
       };
 
       Delimiter.prototype.execute = function() {

build/node/Types/JsonTypes.js

@@ -78,6 +78,14 @@
 
       JsonType.prototype.type = "JsonType";
 
+      JsonType.prototype.applyDelete = function() {
+        return JsonType.__super__.applyDelete.call(this);
+      };
+
+      JsonType.prototype.cleanup = function() {
+        return JsonType.__super__.cleanup.call(this);
+      };
+
       JsonType.prototype.toJson = function() {
         var json, name, o, val;
         val = this.val();
@@ -100,16 +108,18 @@
         return json;
       };
 
-      JsonType.prototype.setReplaceManager = function(rm) {
+      JsonType.prototype.setReplaceManager = function(replace_manager) {
-        this.parent = rm.parent;
+        this.replace_manager = replace_manager;
         return this.on(['change', 'addProperty'], function() {
           var _ref;
-          return (_ref = rm.parent).forwardEvent.apply(_ref, [this].concat(__slice.call(arguments)));
+          if (replace_manager.parent != null) {
+            return (_ref = replace_manager.parent).forwardEvent.apply(_ref, [this].concat(__slice.call(arguments)));
+          }
         });
       };
 
       JsonType.prototype.getParent = function() {
-        return this.parent;
+        return this.replace_manager.parent;
       };
 
       JsonType.prototype.mutable_default = true;
@@ -126,12 +136,11 @@
       };
 
       JsonType.prototype.val = function(name, content, mutable) {
-        var json, o, o_name, obj, word;
+        var json, obj, word;
         if (typeof name === 'object') {
-          for (o_name in name) {
+          json = new JsonType(void 0, name, content);
-            o = name[o_name];
+          HB.addOperation(json).execute();
-            this.val(o_name, o, content);
+          this.replace_manager.replace(json);
-          }
           return this;
         } else if ((name != null) && ((content != null) || content === null)) {
           if (mutable != null) {

build/node/Types/StructuredTypes.js

@@ -18,6 +18,22 @@
         MapManager.__super__.constructor.call(this, uid);
       }
 
+      MapManager.prototype.type = "MapManager";
+
+      MapManager.prototype.applyDelete = function() {
+        var name, p, _ref;
+        _ref = this.map;
+        for (name in _ref) {
+          p = _ref[name];
+          p.applyDelete();
+        }
+        return MapManager.__super__.applyDelete.call(this);
+      };
+
+      MapManager.prototype.cleanup = function() {
+        return MapManager.__super__.cleanup.call(this);
+      };
+
       MapManager.prototype.val = function(name, content) {
         var o, obj, result, _ref, _ref1;
         if (content != null) {
@@ -60,8 +76,18 @@
         AddName.__super__.constructor.call(this, uid);
       }
 
+      AddName.prototype.type = "AddName";
+
+      AddName.prototype.applyDelete = function() {
+        return AddName.__super__.applyDelete.call(this);
+      };
+
+      AddName.prototype.cleanup = function() {
+        return AddName.__super__.cleanup.call(this);
+      };
+
       AddName.prototype.execute = function() {
-        var beg, end, uid_beg, uid_end, uid_r;
+        var beg, end, uid_beg, uid_end, uid_r, _base;
         if (!this.validateSavedOperations()) {
           return false;
         } else {
@@ -76,6 +102,7 @@
             end = HB.addOperation(new types.Delimiter(uid_end, beg, void 0)).execute();
             this.map_manager.map[this.name] = HB.addOperation(new ReplaceManager(void 0, uid_r, beg, end));
             this.map_manager.map[this.name].setParent(this.map_manager, this.name);
+            ((_base = this.map_manager.map[this.name]).add_name_ops != null ? _base.add_name_ops : _base.add_name_ops = []).push(this);
             this.map_manager.map[this.name].execute();
           }
           return AddName.__super__.execute.apply(this, arguments);
@@ -116,6 +143,8 @@
         ListManager.__super__.constructor.call(this, uid, prev, next, origin);
       }
 
+      ListManager.prototype.type = "ListManager";
+
       ListManager.prototype.execute = function() {
         if (this.validateSavedOperations()) {
           this.beginning.setParent(this);
@@ -170,7 +199,7 @@
 
       return ListManager;
 
-    })(types.Insert);
+    })(types.Operation);
     ReplaceManager = (function(_super) {
       __extends(ReplaceManager, _super);
 
@@ -181,11 +210,35 @@
         }
       }
 
+      ReplaceManager.prototype.type = "ReplaceManager";
+
+      ReplaceManager.prototype.applyDelete = function() {
+        var o, _i, _len, _ref;
+        o = this.beginning;
+        while (o != null) {
+          o.applyDelete();
+          o = o.next_cl;
+        }
+        if (this.add_name_ops != null) {
+          _ref = this.add_name_ops;
+          for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+            o = _ref[_i];
+            o.applyDelete();
+          }
+        }
+        return ReplaceManager.__super__.applyDelete.call(this);
+      };
+
+      ReplaceManager.prototype.cleanup = function() {
+        return ReplaceManager.__super__.cleanup.call(this);
+      };
+
       ReplaceManager.prototype.replace = function(content, replaceable_uid) {
         var o, op;
         o = this.getLastOperation();
         op = new Replaceable(content, this, replaceable_uid, o, o.next_cl);
-        return HB.addOperation(op).execute();
+        HB.addOperation(op).execute();
+        return void 0;
       };
 
       ReplaceManager.prototype.setParent = function(parent, property_name) {
@@ -232,8 +285,8 @@
           json['prev'] = this.prev_cl.getUid();
           json['next'] = this.next_cl.getUid();
         }
-        if ((this.origin != null) && this.origin !== this.prev_cl) {
+        if (this.origin != null) {
-          json["origin"] = this.origin.getUid();
+          json["origin"] = this.origin().getUid();
         }
         return json;
       };
@@ -252,12 +305,14 @@
       function Replaceable(content, parent, uid, prev, next, origin) {
         this.saveOperation('content', content);
         this.saveOperation('parent', parent);
-        if (!((prev != null) && (next != null) && (content != null))) {
+        if (!((prev != null) && (next != null))) {
-          throw new Error("You must define content, prev, and next for Replaceable-types!");
+          throw new Error("You must define prev, and next for Replaceable-types!");
         }
         Replaceable.__super__.constructor.call(this, uid, prev, next, origin);
       }
 
+      Replaceable.prototype.type = "Replaceable";
+
       Replaceable.prototype.val = function() {
         return this.content;
       };
@@ -266,23 +321,47 @@
         return this.parent.replace(content);
       };
 
+      Replaceable.prototype.applyDelete = function() {
+        if (this.content != null) {
+          this.content.applyDelete();
+          this.content.dontSync();
+        }
+        this.beforeDelete = this.content;
+        this.content = null;
+        return Replaceable.__super__.applyDelete.apply(this, arguments);
+      };
+
+      Replaceable.prototype.cleanup = function() {
+        return Replaceable.__super__.cleanup.apply(this, arguments);
+      };
+
       Replaceable.prototype.execute = function() {
-        var _base;
+        var ins_result, _ref;
         if (!this.validateSavedOperations()) {
           return false;
         } else {
-          if (typeof (_base = this.content).setReplaceManager === "function") {
+          if ((_ref = this.content) != null) {
-            _base.setReplaceManager(this.parent);
+            if (typeof _ref.setReplaceManager === "function") {
+              _ref.setReplaceManager(this.parent);
+            }
           }
-          return Replaceable.__super__.execute.apply(this, arguments);
+          ins_result = Replaceable.__super__.execute.call(this);
+          if (ins_result) {
+            if (this.next_cl.type === "Delimiter" && this.prev_cl.type !== "Delimiter") {
+              this.prev_cl.applyDelete();
+            } else if (this.next_cl.type !== "Delimiter") {
+              this.applyDelete();
+            }
+          }
+          return ins_result;
         }
       };
 
       Replaceable.prototype._encode = function() {
-        var json;
+        var json, _ref;
         json = {
           'type': "Replaceable",
-          'content': this.content.getUid(),
+          'content': (_ref = this.content) != null ? _ref.getUid() : void 0,
           'ReplaceManager': this.parent.getUid(),
           'prev': this.prev_cl.getUid(),
           'next': this.next_cl.getUid(),

build/node/Types/TextTypes.js

@@ -32,6 +32,8 @@
         TextInsert.__super__.constructor.call(this, uid, prev, next, origin);
       }
 
+      TextInsert.prototype.type = "TextInsert";
+
       TextInsert.prototype.getLength = function() {
         if (this.isDeleted()) {
           return 0;
@@ -40,8 +42,13 @@
         }
       };
 
+      TextInsert.prototype.applyDelete = function() {
+        this.content = null;
+        return TextInsert.__super__.applyDelete.apply(this, arguments);
+      };
+
       TextInsert.prototype.val = function(current_position) {
-        if (this.isDeleted()) {
+        if (this.isDeleted() || (this.content == null)) {
           return "";
         } else {
           return this.content;
@@ -57,7 +64,7 @@
           'prev': this.prev_cl.getUid(),
           'next': this.next_cl.getUid()
         };
-        if ((this.origin != null) && this.origin !== this.prev_cl) {
+        if (this.origin !== this.prev_cl) {
           json["origin"] = this.origin.getUid();
         }
         return json;
@@ -80,13 +87,33 @@
 
       WordType.prototype.type = "WordType";
 
+      WordType.prototype.applyDelete = function() {
+        var o;
+        o = this.beginning;
+        while (o != null) {
+          o.applyDelete();
+          o = o.next_cl;
+        }
+        return WordType.__super__.applyDelete.call(this);
+      };
+
+      WordType.prototype.cleanup = function() {
+        return WordType.__super__.cleanup.call(this);
+      };
+
       WordType.prototype.insertText = function(position, content) {
-        var c, o, op, _i, _len;
+        var c, ith, left, op, right, _i, _len;
-        o = this.getOperationByPosition(position);
+        ith = this.getOperationByPosition(position);
+        left = ith.prev_cl;
+        while (left.isDeleted()) {
+          left = left.prev_cl;
+        }
+        right = left.next_cl;
         for (_i = 0, _len = content.length; _i < _len; _i++) {
           c = content[_i];
-          op = new TextInsert(c, void 0, o.prev_cl, o);
+          op = new TextInsert(c, void 0, left, right);
           HB.addOperation(op).execute();
+          left = op;
         }
         return this;
       };
@@ -278,8 +305,8 @@
         if (this.next_cl != null) {
           json['next'] = this.next_cl.getUid();
         }
-        if ((this.origin != null) && this.origin !== this.prev_cl) {
+        if (this.origin != null) {
-          json["origin"] = this.origin.getUid();
+          json["origin"] = this.origin().getUid();
         }
         return json;
       };

doc/alphabetical_index.html

@@ -248,7 +248,7 @@
       </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/class/IwcConnector.html

@@ -302,7 +302,7 @@ data from the received intent.</p>
 </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/class/JsonFramework.html

@@ -335,7 +335,7 @@ JsonFramework was initialized (Depending on the HistoryBuffer implementation).</
 </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/class/JsonType.html

@@ -85,6 +85,28 @@ if (x.type === "JsonType") {
 </dl>
       <h2>Instance Method Summary</h2>
       <ul class='summary'>
+  <li>
+    <span class='signature'>
+      <a href='#applyDelete-dynamic'>
+        #
+(void)
+<b>applyDelete</b><span>()</span>
+      </a>
+    </span>
+    <span class='desc'>
+    </span>
+  </li>
+  <li>
+    <span class='signature'>
+      <a href='#cleanup-dynamic'>
+        #
+(void)
+<b>cleanup</b><span>()</span>
+      </a>
+    </span>
+    <span class='desc'>
+    </span>
+  </li>
   <li>
     <span class='signature'>
       <a href='#toJson-dynamic'>
@@ -102,7 +124,7 @@ if (x.type === &quot;JsonType&quot;) {
       <a href='#setReplaceManager-dynamic'>
         #
 (void)
-<b>setReplaceManager</b><span>(rm)</span>
+<b>setReplaceManager</b><span>(replace_manager)</span>
       </a>
     </span>
     <span class='desc'>
@@ -205,6 +227,24 @@ if (x.type === &quot;JsonType&quot;) {
 </div>
       <h2>Instance Method Details</h2>
       <div class='methods'>
+  <div class='method_details'>
+    <p class='signature' id='applyDelete-dynamic'>
+      #
+(void)
+<b>applyDelete</b><span>()</span>
+      <br>
+    </p>
+    
+  </div>
+  <div class='method_details'>
+    <p class='signature' id='cleanup-dynamic'>
+      #
+(void)
+<b>cleanup</b><span>()</span>
+      <br>
+    </p>
+    
+  </div>
   <div class='method_details'>
     <p class='signature' id='toJson-dynamic'>
       #
@@ -229,7 +269,7 @@ if (x.type === &quot;JsonType&quot;) {
     <p class='signature' id='setReplaceManager-dynamic'>
       #
 (void)
-<b>setReplaceManager</b><span>(rm)</span>
+<b>setReplaceManager</b><span>(replace_manager)</span>
       <br>
     </p>
     <div class='docstring'>
@@ -426,7 +466,7 @@ if (x.type === &quot;JsonType&quot;) {
 </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/class/JsonTypeWrapper.html

@@ -139,7 +139,7 @@ console.log(w.newProperty == &quot;Awesome&quot;) # true!</code></pre>
 </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/class/PeerJsConnector.html

@@ -222,7 +222,7 @@ on how to do that with urls.</p>
 </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/class/TextFramework.html

@@ -356,7 +356,7 @@ JsonFramework was initialized (Depending on the HistoryBuffer implementation).</
 </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/class/WordType.html

@@ -77,6 +77,28 @@ if (x.type === "WordType") {
 </dl>
       <h2>Instance Method Summary</h2>
       <ul class='summary'>
+  <li>
+    <span class='signature'>
+      <a href='#applyDelete-dynamic'>
+        #
+(void)
+<b>applyDelete</b><span>()</span>
+      </a>
+    </span>
+    <span class='desc'>
+    </span>
+  </li>
+  <li>
+    <span class='signature'>
+      <a href='#cleanup-dynamic'>
+        #
+(void)
+<b>cleanup</b><span>()</span>
+      </a>
+    </span>
+    <span class='desc'>
+    </span>
+  </li>
   <li>
     <span class='signature'>
       <a href='#insertText-dynamic'>
@@ -206,6 +228,24 @@ if (x.type === &quot;WordType&quot;) {
 </div>
       <h2>Instance Method Details</h2>
       <div class='methods'>
+  <div class='method_details'>
+    <p class='signature' id='applyDelete-dynamic'>
+      #
+(void)
+<b>applyDelete</b><span>()</span>
+      <br>
+    </p>
+    
+  </div>
+  <div class='method_details'>
+    <p class='signature' id='cleanup-dynamic'>
+      #
+(void)
+<b>cleanup</b><span>()</span>
+      <br>
+    </p>
+    
+  </div>
   <div class='method_details'>
     <p class='signature' id='insertText-dynamic'>
       #
@@ -375,7 +415,7 @@ yatta.bind(textbox);</code></pre>
 </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/extra/LICENSE.txt.html

@@ -38,7 +38,7 @@
       </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/extra/README.md.html

@@ -70,7 +70,7 @@ But I would become really motivated if you gave me some feedback :) (<a href="ht
 <li>Garbage Collection</li>
 <li>XML support</li>
 </ul>
-<h2 id="support">Support</h2><p>Please report any issues to the <a href="https://github.com/DadaMonad/Yatta/issues">Github issue page</a>!</p><h2 id="license">License</h2><p>Yatta! is licensed under the <a href="./LICENSE.txt">MIT License</a>.</p><a href="&#x6d;&#x61;&#x69;&#108;&#x74;&#111;&#58;&#107;&#x65;&#118;&#105;&#110;&#x2e;&#106;&#x61;&#104;&#x6e;&#115;&#x40;&#114;&#x77;&#116;&#104;&#x2d;&#x61;&#x61;&#x63;&#x68;&#x65;&#x6e;&#46;&#x64;&#x65;">&#107;&#x65;&#118;&#105;&#110;&#x2e;&#106;&#x61;&#104;&#x6e;&#115;&#x40;&#114;&#x77;&#116;&#104;&#x2d;&#x61;&#x61;&#x63;&#x68;&#x65;&#x6e;&#46;&#x64;&#x65;</a>
+<h2 id="support">Support</h2><p>Please report any issues to the <a href="https://github.com/DadaMonad/Yatta/issues">Github issue page</a>!</p><h2 id="license">License</h2><p>Yatta! is licensed under the <a href="./LICENSE.txt">MIT License</a>.</p><a href="&#109;&#97;&#105;&#x6c;&#116;&#x6f;&#58;&#x6b;&#x65;&#118;&#105;&#110;&#x2e;&#x6a;&#97;&#104;&#x6e;&#115;&#64;&#x72;&#x77;&#116;&#104;&#45;&#x61;&#x61;&#99;&#x68;&#101;&#110;&#x2e;&#x64;&#x65;">&#x6b;&#x65;&#118;&#105;&#110;&#x2e;&#x6a;&#97;&#104;&#x6e;&#115;&#64;&#x72;&#x77;&#116;&#104;&#45;&#x61;&#x61;&#99;&#x68;&#101;&#110;&#x2e;&#x64;&#x65;</a>
 
 
 
@@ -79,7 +79,7 @@ But I would become really motivated if you gave me some feedback :) (<a href="ht
       </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Connectors/IwcConnector.coffee.html

@@ -100,7 +100,7 @@
 </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Connectors/PeerJsConnector.coffee.html

@@ -158,7 +158,7 @@
 </div>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Connectors/TestConnector.coffee.html

@@ -39,7 +39,7 @@
       </table>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Engine.coffee.html

@@ -48,7 +48,7 @@
 </dl>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Frameworks/JsonFramework.coffee.html

@@ -60,7 +60,7 @@
 </dl>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Frameworks/TextFramework.coffee.html

@@ -60,7 +60,7 @@
 </dl>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/HistoryBuffer.coffee.html

@@ -48,7 +48,7 @@
 </dl>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Types/BasicTypes.coffee.html

@@ -39,7 +39,7 @@
       </table>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Types/JsonTypes.coffee.html

@@ -39,7 +39,7 @@
       </table>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Types/StructuredTypes.coffee.html

@@ -39,7 +39,7 @@
       </table>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Types/TextTypes.coffee.html

@@ -39,7 +39,7 @@
       </table>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/Types/XmlTypes.coffee.html

@@ -39,7 +39,7 @@
       </table>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/file/lib/index.coffee.html

@@ -37,7 +37,7 @@
       </table>
     </div>
     <div id='footer'>
-  August 26, 14 03:04:10 by
+  September 17, 14 16:00:52 by
   <a href='https://github.com/coffeedoc/codo' title='CoffeeScript API documentation generator'>
     Codo
   </a>

doc/method_list.html

@@ -29,14 +29,6 @@
         <input type='text'>
       </div>
       <ul>
-        <li>
-          <a href='class/WordType.html#_encode-dynamic' target='main' title='_encode'>
-            #_encode
-          </a>
-          <small>
-            (WordType)
-          </small>
-        </li>
         <li>
           <a href='class/JsonType.html#_encode-dynamic' target='main' title='_encode'>
             #_encode
@@ -45,6 +37,14 @@
             (JsonType)
           </small>
         </li>
+        <li>
+          <a href='class/WordType.html#_encode-dynamic' target='main' title='_encode'>
+            #_encode
+          </a>
+          <small>
+            (WordType)
+          </small>
+        </li>
         <li>
           <a href='class/PeerJsConnector.html#addConnection-dynamic' target='main' title='addConnection'>
             #addConnection
@@ -54,13 +54,21 @@
           </small>
         </li>
         <li>
-          <a href='class/WordType.html#bind-dynamic' target='main' title='bind'>
+          <a href='class/WordType.html#applyDelete-dynamic' target='main' title='applyDelete'>
-            #bind
+            #applyDelete
           </a>
           <small>
             (WordType)
           </small>
         </li>
+        <li>
+          <a href='class/JsonType.html#applyDelete-dynamic' target='main' title='applyDelete'>
+            #applyDelete
+          </a>
+          <small>
+            (JsonType)
+          </small>
+        </li>
         <li>
           <a href='class/TextFramework.html#bind-dynamic' target='main' title='bind'>
             #bind
@@ -69,6 +77,30 @@
             (TextFramework)
           </small>
         </li>
+        <li>
+          <a href='class/WordType.html#bind-dynamic' target='main' title='bind'>
+            #bind
+          </a>
+          <small>
+            (WordType)
+          </small>
+        </li>
+        <li>
+          <a href='class/WordType.html#cleanup-dynamic' target='main' title='cleanup'>
+            #cleanup
+          </a>
+          <small>
+            (WordType)
+          </small>
+        </li>
+        <li>
+          <a href='class/JsonType.html#cleanup-dynamic' target='main' title='cleanup'>
+            #cleanup
+          </a>
+          <small>
+            (JsonType)
+          </small>
+        </li>
         <li>
           <a href='class/PeerJsConnector.html#connectToPeer-dynamic' target='main' title='connectToPeer'>
             #connectToPeer
@@ -85,30 +117,6 @@
             (IwcConnector)
           </small>
         </li>
-        <li>
-          <a href='class/WordType.html#constructor-dynamic' target='main' title='constructor'>
-            #constructor
-          </a>
-          <small>
-            (WordType)
-          </small>
-        </li>
-        <li>
-          <a href='class/JsonTypeWrapper.html#constructor-dynamic' target='main' title='constructor'>
-            #constructor
-          </a>
-          <small>
-            (JsonTypeWrapper)
-          </small>
-        </li>
-        <li>
-          <a href='class/TextFramework.html#constructor-dynamic' target='main' title='constructor'>
-            #constructor
-          </a>
-          <small>
-            (TextFramework)
-          </small>
-        </li>
         <li>
           <a href='class/JsonFramework.html#constructor-dynamic' target='main' title='constructor'>
             #constructor
@@ -117,6 +125,14 @@
             (JsonFramework)
           </small>
         </li>
+        <li>
+          <a href='class/PeerJsConnector.html#constructor-dynamic' target='main' title='constructor'>
+            #constructor
+          </a>
+          <small>
+            (PeerJsConnector)
+          </small>
+        </li>
         <li>
           <a href='class/JsonType.html#constructor-dynamic' target='main' title='constructor'>
             #constructor
@@ -126,11 +142,27 @@
           </small>
         </li>
         <li>
-          <a href='class/PeerJsConnector.html#constructor-dynamic' target='main' title='constructor'>
+          <a href='class/JsonTypeWrapper.html#constructor-dynamic' target='main' title='constructor'>
             #constructor
           </a>
           <small>
-            (PeerJsConnector)
+            (JsonTypeWrapper)
+          </small>
+        </li>
+        <li>
+          <a href='class/WordType.html#constructor-dynamic' target='main' title='constructor'>
+            #constructor
+          </a>
+          <small>
+            (WordType)
+          </small>
+        </li>
+        <li>
+          <a href='class/TextFramework.html#constructor-dynamic' target='main' title='constructor'>
+            #constructor
+          </a>
+          <small>
+            (TextFramework)
           </small>
         </li>
         <li>
@@ -197,14 +229,6 @@
             (TextFramework)
           </small>
         </li>
-        <li>
-          <a href='class/JsonFramework.html#getHistoryBuffer-dynamic' target='main' title='getHistoryBuffer'>
-            #getHistoryBuffer
-          </a>
-          <small>
-            (JsonFramework)
-          </small>
-        </li>
         <li>
           <a href='class/TextFramework.html#getHistoryBuffer-dynamic' target='main' title='getHistoryBuffer'>
             #getHistoryBuffer
@@ -213,6 +237,14 @@
             (TextFramework)
           </small>
         </li>
+        <li>
+          <a href='class/JsonFramework.html#getHistoryBuffer-dynamic' target='main' title='getHistoryBuffer'>
+            #getHistoryBuffer
+          </a>
+          <small>
+            (JsonFramework)
+          </small>
+        </li>
         <li>
           <a href='class/JsonType.html#getParent-dynamic' target='main' title='getParent'>
             #getParent
@@ -221,14 +253,6 @@
             (JsonType)
           </small>
         </li>
-        <li>
-          <a href='class/TextFramework.html#getSharedObject-dynamic' target='main' title='getSharedObject'>
-            #getSharedObject
-          </a>
-          <small>
-            (TextFramework)
-          </small>
-        </li>
         <li>
           <a href='class/JsonFramework.html#getSharedObject-dynamic' target='main' title='getSharedObject'>
             #getSharedObject
@@ -238,11 +262,11 @@
           </small>
         </li>
         <li>
-          <a href='class/JsonFramework.html#getUserId-dynamic' target='main' title='getUserId'>
+          <a href='class/TextFramework.html#getSharedObject-dynamic' target='main' title='getSharedObject'>
-            #getUserId
+            #getSharedObject
           </a>
           <small>
-            (JsonFramework)
+            (TextFramework)
           </small>
         </li>
         <li>
@@ -254,11 +278,11 @@
           </small>
         </li>
         <li>
-          <a href='class/TextFramework.html#insertText-dynamic' target='main' title='insertText'>
+          <a href='class/JsonFramework.html#getUserId-dynamic' target='main' title='getUserId'>
-            #insertText
+            #getUserId
           </a>
           <small>
-            (TextFramework)
+            (JsonFramework)
           </small>
         </li>
         <li>
@@ -269,6 +293,14 @@
             (WordType)
           </small>
         </li>
+        <li>
+          <a href='class/TextFramework.html#insertText-dynamic' target='main' title='insertText'>
+            #insertText
+          </a>
+          <small>
+            (TextFramework)
+          </small>
+        </li>
         <li>
           <a href='class/JsonFramework.html#on-dynamic' target='main' title='on'>
             #on
@@ -333,14 +365,6 @@
             (IwcConnector)
           </small>
         </li>
-        <li>
-          <a href='class/JsonType.html#setMutableDefault-dynamic' target='main' title='setMutableDefault'>
-            #setMutableDefault
-          </a>
-          <small>
-            (JsonType)
-          </small>
-        </li>
         <li>
           <a href='class/JsonFramework.html#setMutableDefault-dynamic' target='main' title='setMutableDefault'>
             #setMutableDefault
@@ -350,8 +374,8 @@
           </small>
         </li>
         <li>
-          <a href='class/JsonType.html#setReplaceManager-dynamic' target='main' title='setReplaceManager'>
+          <a href='class/JsonType.html#setMutableDefault-dynamic' target='main' title='setMutableDefault'>
-            #setReplaceManager
+            #setMutableDefault
           </a>
           <small>
             (JsonType)
@@ -365,6 +389,14 @@
             (WordType)
           </small>
         </li>
+        <li>
+          <a href='class/JsonType.html#setReplaceManager-dynamic' target='main' title='setReplaceManager'>
+            #setReplaceManager
+          </a>
+          <small>
+            (JsonType)
+          </small>
+        </li>
         <li>
           <a href='class/JsonType.html#toJson-dynamic' target='main' title='toJson'>
             #toJson
@@ -397,14 +429,6 @@
             (JsonType)
           </small>
         </li>
-        <li>
-          <a href='class/WordType.html#val-dynamic' target='main' title='val'>
-            #val
-          </a>
-          <small>
-            (WordType)
-          </small>
-        </li>
         <li>
           <a href='class/JsonFramework.html#val-dynamic' target='main' title='val'>
             #val
@@ -413,6 +437,14 @@
             (JsonFramework)
           </small>
         </li>
+        <li>
+          <a href='class/WordType.html#val-dynamic' target='main' title='val'>
+            #val
+          </a>
+          <small>
+            (WordType)
+          </small>
+        </li>
         <li>
           <a href='class/TextFramework.html#val-dynamic' target='main' title='val'>
             #val

examples/PeerJs-Json/README.md

@@ -227,7 +227,7 @@ Nah.. this is only for the cool kids.
 
 
 ```js
-  console.log(yatta.value.list[2] === 3) // true
+  console.log(yatta.value.list[2] === 2) // true
   yatta.value.list = [3,4,5]
   console.log(yatta.val('list')[2] === 5) // true
   yatta.value.object = {c : 4}

examples/PeerJs-Json/index.js

@@ -40,7 +40,7 @@ Y.createPeerJsConnector("unique_id", {key: 'h7nlefbgavh1tt9'}, function(Connecto
     it will be instantly shared with all the other collaborators.
   */
   yatta = new Y.JsonFramework(user_id, Connector);
-
+  
   /**
     Next, you may want to connect to another peer. Therefore you have to receive his
     user_id. If the other peer is connected to other peers, the PeerJsConnector
@@ -181,7 +181,7 @@ Y.createPeerJsConnector("unique_id", {key: 'h7nlefbgavh1tt9'}, function(Connecto
     ### Experimental method
     Nah.. this is only for the cool kids.
   */
-  console.log(yatta.value.list[2] === 3) // true
+  console.log(yatta.value.list[2] === 2) // true
   yatta.value.list = [3,4,5]
   console.log(yatta.val('list')[2] === 5) // true
   yatta.value.object = {c : 4}

examples/temp_ex/README.md

@@ -0,0 +1,48 @@
+## PeerJs + JSON Example
+Here, I will give a short overview on how to enable collaborative json with the
+[PeerJs](http://peerjs.com/) Connector and the Json Framework. Open
+[index.html](http://dadamonad.github.io/Yatta/examples/PeerJs-Json/index.html) in your Browser and
+use the console to explore Yatta!
+
+[PeerJs](http://peerjs.com) is a Framework that enables you to connect to other peers. You just need the
+user-id of the peer (browser/client). And then you can connect to it.
+
+First you have to include the following libraries in your html file:
+```
+<script src="http://cdn.peerjs.com/0.3/peer.js"></script>
+<script src="../../build/browser/Frameworks/JsonFramework.js"></script>
+<script src="../../build/browser/Connectors/PeerJsConnector.js"></script>
+<script src="./index.js"></script>
+```
+### Create Connector
+
+The PeerJs Framework requires an API key, or you need to set up your own PeerJs server.
+Get an API key from the [Website](http://peerjs.com/peerserver).
+The first parameter of `createPeerJsConnector` is forwarded as the options object in PeerJs.
+Therefore, you may also specify the server/port here, if you have set up your own server.
+
+
+```js
+var yatta, yattaHandler;
+Y.createPeerJsConnector({key: 'h7nlefbgavh1tt9'}, function(Connector, user_id){
+```
+
+
+You can also specify your own user_id with peerjs.
+But then you have to make sure that no other client associated to your API-key has the same user_id.
+```
+Y.createPeerJsConnector("unique_id", {key: 'h7nlefbgavh1tt9'}, function(Connector, user_id){
+```
+
+
+### Yatta
+yatta is the shared json object. If you change something on this object,
+it will be instantly shared with all the other collaborators.
+
+
+```js
+  yatta = new Y.JsonFramework(user_id, Connector);
+  yatta.val('w','w');
+
+});
+```

examples/temp_ex/index.html

@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+<head>
+        <meta charset=utf-8 />
+        <title>PeerJs Json Example</title>
+        <script src="http://cdn.peerjs.com/0.3/peer.js"></script>
+        <script src="../../build/browser/Frameworks/JsonFramework.js"></script>
+        <script src="../../build/browser/Connectors/PeerJsConnector.js"></script>
+        <script src="./index.js"></script>
+</head>
+<body>
+<h1> PeerJs + Json Tutorial</h1>
+<p> Collaborative Json editing with <a href="https://github.com/DadaMonad/Yatta/">Yatta</a>
+and <a href="http://peerjs.com/">PeerJs</a> (WebRTC). </p>
+
+
+<p> <a href="https://github.com/DadaMonad/Yatta/">Yatta</a> is a Framework for Real-Time collaboration on arbitrary data structures.
+You can find the code for this example <a href="https://github.com/DadaMonad/Yatta/tree/master/examples/PeerJs-Json">here</a>.
+</p>
+</body>
+</html>

examples/temp_ex/index.js

@@ -0,0 +1,45 @@
+
+/**
+ ## PeerJs + JSON Example
+ Here, I will give a short overview on how to enable collaborative json with the
+ [PeerJs](http://peerjs.com/) Connector and the Json Framework. Open
+ [index.html](http://dadamonad.github.io/Yatta/examples/PeerJs-Json/index.html) in your Browser and
+ use the console to explore Yatta!
+
+ [PeerJs](http://peerjs.com) is a Framework that enables you to connect to other peers. You just need the
+ user-id of the peer (browser/client). And then you can connect to it.
+
+ First you have to include the following libraries in your html file:
+ ```
+<script src="http://cdn.peerjs.com/0.3/peer.js"></script>
+<script src="../../build/browser/Frameworks/JsonFramework.js"></script>
+<script src="../../build/browser/Connectors/PeerJsConnector.js"></script>
+<script src="./index.js"></script>
+ ```
+### Create Connector
+
+The PeerJs Framework requires an API key, or you need to set up your own PeerJs server.
+Get an API key from the [Website](http://peerjs.com/peerserver).
+The first parameter of `createPeerJsConnector` is forwarded as the options object in PeerJs.
+Therefore, you may also specify the server/port here, if you have set up your own server.
+ */
+var yatta, yattaHandler;
+Y.createPeerJsConnector({key: 'h7nlefbgavh1tt9'}, function(Connector, user_id){
+
+/**
+You can also specify your own user_id with peerjs.
+But then you have to make sure that no other client associated to your API-key has the same user_id.
+```
+Y.createPeerJsConnector("unique_id", {key: 'h7nlefbgavh1tt9'}, function(Connector, user_id){
+```
+*/
+
+  /**
+    ### Yatta
+    yatta is the shared json object. If you change something on this object,
+    it will be instantly shared with all the other collaborators.
+  */
+  yatta = new Y.JsonFramework(user_id, Connector);
+  yatta.val('w','w');
+
+});

lib/Connectors/TestConnector.coffee

@@ -27,6 +27,7 @@ module.exports = (user_list)->
       if not (user_list?.length is 0)
         @engine.applyOps user_list[0].getHistoryBuffer()._encode()
 
+      @HB.setManualGarbageCollect()
       @unexecuted = {}
 
     #

lib/Frameworks/JsonFramework.coffee

@@ -21,16 +21,25 @@ class JsonFramework
     type_manager = json_types_uninitialized @HB
     @types = type_manager.types
     @engine = new Engine @HB, type_manager.parser
+    @HB.engine = @engine # TODO: !! only for debugging
     @connector = new Connector @engine, @HB, type_manager.execution_listener, @
-    first_word = new @types.JsonType @HB.getReservedUniqueIdentifier()
+    first_word = new @types.JsonType(@HB.getReservedUniqueIdentifier())
     @HB.addOperation(first_word).execute()
-    @root_element = first_word
+
+    uid_beg = @HB.getReservedUniqueIdentifier()
+    uid_end = @HB.getReservedUniqueIdentifier()
+    beg = @HB.addOperation(new @types.Delimiter uid_beg, undefined, uid_end).execute()
+    end = @HB.addOperation(new @types.Delimiter uid_end, beg, undefined).execute()
+
+    @root_element = new @types.ReplaceManager undefined, @HB.getReservedUniqueIdentifier(), beg, end
+    @HB.addOperation(@root_element).execute()
+    @root_element.replace first_word, @HB.getReservedUniqueIdentifier()
 
   #
   # @return JsonType
   #
   getSharedObject: ()->
-    @root_element
+    @root_element.val()
 
   #
   # Get the initialized connector.
@@ -48,7 +57,7 @@ class JsonFramework
   # @see JsonType.setMutableDefault
   #
   setMutableDefault: (mutable)->
-    @root_element.setMutableDefault(mutable)
+    @getSharedObject().setMutableDefault(mutable)
 
   #
   # Get the UserId from the HistoryBuffer object.
@@ -62,31 +71,31 @@ class JsonFramework
   # @see JsonType.toJson
   #
   toJson : ()->
-    @root_element.toJson()
+    @getSharedObject().toJson()
 
   #
   # @see JsonType.val
   #
   val : (name, content, mutable)->
-    @root_element.val(name, content, mutable)
+    @getSharedObject().val(name, content, mutable)
 
   #
   # @see Operation.on
   #
   on: ()->
-    @root_element.on arguments...
+    @getSharedObject().on arguments...
 
   #
   # @see Operation.deleteListener
   #
   deleteListener: ()->
-    @root_element.deleteListener arguments...
+    @getSharedObject().deleteListener arguments...
 
   #
   # @see JsonType.value
   #
   Object.defineProperty JsonFramework.prototype, 'value',
-    get : -> @root_element.value
+    get : -> @getSharedObject().value
     set : (o)->
       if o.constructor is {}.constructor
         for o_name,o_obj of o

lib/HistoryBuffer.coffee

@@ -7,6 +7,8 @@
 #
 class HistoryBuffer
 
+
+
   #
   # Creates an empty HB.
   # @param {Object} user_id Creator of the HB.
@@ -15,6 +17,23 @@ class HistoryBuffer
     @operation_counter = {}
     @buffer = {}
     @change_listeners = []
+    @garbage = [] # Will be cleaned on next call of garbageCollector
+    @trash = [] # Is deleted. Wait until it is not used anymore.
+    @performGarbageCollection = true
+    @garbageCollectTimeout = 1000
+    @reserved_identifier_counter = 0
+    setTimeout @emptyGarbage, @garbageCollectTimeout
+
+  emptyGarbage: ()=>
+    for o in @garbage
+      #if @getOperationCounter(o.creator) > o.op_number
+      o.cleanup?()
+
+    @garbage = @trash
+    @trash = []
+    if @garbageCollectTimeout isnt -1
+      @garbageCollectTimeoutId = setTimeout @emptyGarbage, @garbageCollectTimeout
+    undefined
 
   #
   # Get the user id with wich the History Buffer was initialized.
@@ -22,8 +41,26 @@ class HistoryBuffer
   getUserId: ()->
     @user_id
 
+  addToGarbageCollector: ()->
+    if @performGarbageCollection
+      for o in arguments
+        if o?
+          @garbage.push o
+
+  stopGarbageCollection: ()->
+    @performGarbageCollection = false
+    @setManualGarbageCollect()
+    @garbage = []
+    @trash = []
+
+  setManualGarbageCollect: ()->
+    @garbageCollectTimeout = -1
+    clearTimeout @garbageCollectTimeoutId
+    @garbageCollectTimeoutId = undefined
+
+  setGarbageCollectTimeout: (@garbageCollectTimeout)->
+
   #
-  # There is only one reserved unique identifier (uid), so use it wisely.
   # I propose to use it in your Framework, to create something like a root element.
   # An operation with this identifier is not propagated to other clients.
   # This is why everybode must create the same operation with this uid.
@@ -31,17 +68,21 @@ class HistoryBuffer
   getReservedUniqueIdentifier: ()->
     {
       creator : '_'
-      op_number : '_'
+      op_number : "_#{@reserved_identifier_counter++}"
     }
 
   #
   # Get the operation counter that describes the current state of the document.
   #
-  getOperationCounter: ()->
+  getOperationCounter: (user_id)->
-    res = {}
+    if not user_id?
-    for user,ctn of @operation_counter
+      res = {}
-      res[user] = ctn
+      for user,ctn of @operation_counter
-    res
+        res[user] = ctn
+      res
+    else
+      @operation_counter[user_id]
+
 
   #
   # Encode this operation in such a way that it can be parsed by remote peers.
@@ -55,16 +96,16 @@ class HistoryBuffer
 
     for u_name,user of @buffer
       for o_number,o of user
-        if (not isNaN(parseInt(o_number))) and unknown(u_name, o_number)
+        if o.doSync and unknown(u_name, o_number)
           # its necessary to send it, and not known in state_vector
           o_json = o._encode()
-          if o.next_cl?
+          if o.next_cl? # applies for all ops but the most right delimiter!
             # search for the next _known_ operation. (When state_vector is {} then this is the Delimiter)
             o_next = o.next_cl
             while o_next.next_cl? and unknown(o_next.creator, o_next.op_number)
               o_next = o_next.next_cl
             o_json.next = o_next.getUid()
-          else if o.prev_cl?
+          else if o.prev_cl? # most right delimiter only!
             # same as the above with prev.
             o_prev = o.prev_cl
             while o_prev.prev_cl? and unknown(o_prev.creator, o_prev.op_number)
@@ -111,6 +152,9 @@ class HistoryBuffer
     @buffer[o.creator][o.op_number] = o
     o
 
+  removeOperation: (o)->
+    delete @buffer[o.creator]?[o.op_number]
+
   #
   # Increment the operation_counter that defines the current state of the Engine.
   #

lib/Types/BasicTypes.coffee

@@ -23,13 +23,20 @@ module.exports = (HB)->
     # @see HistoryBuffer.getNextOperationIdentifier
     #
     constructor: (uid)->
-      if not uid?
+      @is_deleted = false
+      @doSync = true
+      @garbage_collected = false
+      if uid?
+        @doSync = not isNaN(parseInt(uid.op_number))
+      else
         uid = HB.getNextOperationIdentifier()
       {
         'creator': @creator
         'op_number' : @op_number
       } = uid
 
+    type: "Insert"
+
     #
     # Add an event listener. It depends on the operation which events are supported.
     # @param {String} event Name of the event.
@@ -76,6 +83,21 @@ module.exports = (HB)->
         for f in @event_listeners[event]
           f.call op, event, args...
 
+    isDeleted: ()->
+      @is_deleted
+
+    applyDelete: (garbagecollect = true)->
+      if not @garbage_collected
+        #console.log "applyDelete: #{@type}"
+        @is_deleted = true
+        if garbagecollect
+          @garbage_collected = true
+          HB.addToGarbageCollector @
+
+    cleanup: ()->
+      #console.log "cleanup: #{@type}"
+      HB.removeOperation @
+
     #
     # Set the parent of this operation.
     #
@@ -91,7 +113,10 @@ module.exports = (HB)->
     # Computes a unique identifier (uid) that identifies this operation.
     #
     getUid: ()->
-      { 'creator': @creator, 'op_number': @op_number }
+      { 'creator': @creator, 'op_number': @op_number , 'sync': @doSync}
+
+    dontSync: ()->
+      @doSync = false
 
     #
     # @private
@@ -162,7 +187,7 @@ module.exports = (HB)->
 
   #
   # @nodoc
-  # A simple Delete-type operation that deletes an Insert-type operation.
+  # A simple Delete-type operation that deletes an operation.
   #
   class Delete extends Operation
 
@@ -174,6 +199,8 @@ module.exports = (HB)->
       @saveOperation 'deletes', deletes
       super uid
 
+    type: "Delete"
+
     #
     # @private
     # Convert all relevant information of this operation to the json-format.
@@ -235,21 +262,46 @@ module.exports = (HB)->
         @saveOperation 'origin', prev_cl
       super uid
 
+    type: "Insert"
+
     #
+    # set content to null and other stuff
     # @private
     #
     applyDelete: (o)->
       @deleted_by ?= []
-      @deleted_by.push o
+      if @parent? and not @isDeleted()
-      if @parent? and @deleted_by.length is 1
         # call iff wasn't deleted earlyer
         @parent.callEvent "delete", @
+      if o?
+        @deleted_by.push o
+      garbagecollect = false
+      if @prev_cl.isDeleted()
+        garbagecollect = true
+      super garbagecollect
+      if @next_cl.isDeleted()
+        # garbage collect next_cl
+        @next_cl.applyDelete()
+
+    cleanup: ()->
+      # TODO: Debugging
+      if @prev_cl.isDeleted()
+        # delete all ops that delete this insertion
+        for d in @deleted_by
+          d.cleanup()
+
+        # throw new Error "left is not deleted. inconsistency!, wrararar"
+        # delete origin references to the right
+        o = @next_cl
+        while o.type isnt "Delimiter"
+          if o.origin is @
+            o.origin = @prev_cl
+          o = o.next_cl
+        # reconnect left/right
+        @prev_cl.next_cl = @next_cl
+        @next_cl.prev_cl = @prev_cl
+        super
 
-    #
-    # If isDeleted() is true this operation won't be maintained in the sl
-    #
-    isDeleted: ()->
-      @deleted_by?.length > 0
 
     #
     # @private
@@ -262,45 +314,22 @@ module.exports = (HB)->
         if @origin is o
           break
         d++
-        #TODO: delete this
-        if @ is @prev_cl
-          throw new Error "this should not happen ;) "
         o = o.prev_cl
       d
 
-    #
-    # @private
-    # Update the short list
-    # TODO (Unused)
-    update_sl: ()->
-      o = @prev_cl
-      update: (dest_cl,dest_sl)->
-        while true
-          if o.isDeleted()
-            o = o[dest_cl]
-          else
-            @[dest_sl] = o
-
-            break
-      update "prev_cl", "prev_sl"
-      update "next_cl", "prev_sl"
-
-
-
     #
     # @private
     # Include this operation in the associative lists.
     #
     execute: ()->
-      if @is_executed?
-        return @
       if not @validateSavedOperations()
         return false
       else
-        if @prev_cl?.validateSavedOperations() and @next_cl?.validateSavedOperations() and @prev_cl.next_cl isnt @
+        if @prev_cl?
-          distance_to_origin = 0
+          distance_to_origin = @getDistanceToOrigin() # most cases: 0
           o = @prev_cl.next_cl
-          i = 0
+          i = distance_to_origin # loop counter
+
           # $this has to find a unique position between origin and the next known character
           # case 1: $origin equals $o.origin: the $creator parameter decides if left or right
           #         let $OL= [o1,o2,o3,o4], whereby $this is to be inserted between o1 and o4
@@ -314,10 +343,6 @@ module.exports = (HB)->
           # case 3: $origin > $o.origin
           #         $this insert_position is to the left of $o (forever!)
           while true
-            if not o?
-              # TODO: Debugging
-              console.log JSON.stringify @prev_cl.getUid()
-              console.log JSON.stringify @next_cl.getUid()
             if o isnt @next_cl
               # $o happened concurrently
               if o.getDistanceToOrigin() is i
@@ -346,6 +371,7 @@ module.exports = (HB)->
           @next_cl = @prev_cl.next_cl
           @prev_cl.next_cl = @
           @next_cl.prev_cl = @
+
         parent = @prev_cl?.getParent()
         if parent?
           @setParent parent
@@ -361,7 +387,7 @@ module.exports = (HB)->
       while true
         if prev instanceof Delimiter
           break
-        if prev.isDeleted? and not prev.isDeleted()
+        if not prev.isDeleted()
           position++
         prev = prev.prev_cl
       position
@@ -370,7 +396,7 @@ module.exports = (HB)->
   # @nodoc
   # Defines an object that is cannot be changed. You can use this to set an immutable string, or a number.
   #
-  class ImmutableObject extends Insert
+  class ImmutableObject extends Operation
 
     #
     # @param {Object} uid A unique identifier. If uid is undefined, a new uid will be created.
@@ -379,6 +405,8 @@ module.exports = (HB)->
     constructor: (uid, @content, prev, next, origin)->
       super uid, prev, next, origin
 
+    type: "ImmutableObject"
+
     #
     # @return [String] The content of this operation.
     #
@@ -398,8 +426,8 @@ module.exports = (HB)->
         json['prev'] = @prev_cl.getUid()
       if @next_cl?
         json['next'] = @next_cl.getUid()
-      if @origin? and @origin isnt @prev_cl
+      if @origin? # and @origin isnt @prev_cl
-        json["origin"] = @origin.getUid()
+        json["origin"] = @origin().getUid()
       json
 
   parser['ImmutableObject'] = (json)->
@@ -432,11 +460,18 @@ module.exports = (HB)->
       @saveOperation 'origin', prev_cl
       super uid
 
-    #
+    type: "Delimiter"
-    # If isDeleted() is true this operation won't be maintained in the sl
+
-    #
+    applyDelete: ()->
-    isDeleted: ()->
+      super()
-      false
+      o = @next_cl
+      while o?
+        o.applyDelete()
+        o = o.next_cl
+      undefined
+
+    cleanup: ()->
+      super()
 
     #
     # @private

lib/Types/JsonTypes.coffee

@@ -123,6 +123,11 @@ module.exports = (HB)->
     #
     type: "JsonType"
 
+    applyDelete: ()->
+      super()
+
+    cleanup: ()->
+      super()
     #
     # Transform this to a Json and loose all the sharing-abilities (the new object will be a deep clone)!
     # @return {Json}
@@ -147,16 +152,18 @@ module.exports = (HB)->
     # @see WordType.setReplaceManager
     # Sets the parent of this JsonType object.
     #
-    setReplaceManager: (rm)->
+    setReplaceManager: (replace_manager)->
-      @parent = rm.parent
+      @replace_manager = replace_manager
       @on ['change','addProperty'], ()->
-        rm.parent.forwardEvent this, arguments...
+        if replace_manager.parent?
+          replace_manager.parent.forwardEvent this, arguments...
+
     #
     # Get the parent of this JsonType.
     # @return {JsonType}
     #
     getParent: ()->
-      @parent
+      @replace_manager.parent
 
     #
     # Whether the default is 'mutable' (true) or 'immutable' (false)
@@ -196,8 +203,9 @@ module.exports = (HB)->
       if typeof name is 'object'
         # Special case. First argument is an object. Then the second arg is mutable.
         # Keep that in mind when reading the following..
-        for o_name,o of name
+        json = new JsonType undefined, name, content
-          @val(o_name,o,content)
+        HB.addOperation(json).execute()
+        @replace_manager.replace json
         @
       else if name? and (content? or content is null)
         if mutable?

lib/Types/StructuredTypes.coffee

@@ -18,6 +18,16 @@ module.exports = (HB)->
       @map = {}
       super uid
 
+    type: "MapManager"
+
+    applyDelete: ()->
+      for name,p of @map
+        p.applyDelete()
+      super()
+
+    cleanup: ()->
+      super()
+
     #
     # @see JsonTypes.val
     #
@@ -60,6 +70,14 @@ module.exports = (HB)->
       @saveOperation 'map_manager', map_manager
       super uid
 
+    type: "AddName"
+
+    applyDelete: ()->
+      super()
+
+    cleanup: ()->
+      super()
+
     #
     # If map_manager doesn't have the property name, then add it.
     # The ReplaceManager that is being written on the property is unique
@@ -81,6 +99,7 @@ module.exports = (HB)->
           end = HB.addOperation(new types.Delimiter uid_end, beg, undefined).execute()
           @map_manager.map[@name] = HB.addOperation(new ReplaceManager undefined, uid_r, beg, end)
           @map_manager.map[@name].setParent @map_manager, @name
+          (@map_manager.map[@name].add_name_ops ?= []).push @
           @map_manager.map[@name].execute()
         super
 
@@ -107,7 +126,7 @@ module.exports = (HB)->
   # @nodoc
   # Manages a list of Insert-type operations.
   #
-  class ListManager extends types.Insert
+  class ListManager extends types.Operation
 
     #
     # A ListManager maintains a non-empty list that has a beginning and an end (both Delimiters!)
@@ -126,6 +145,8 @@ module.exports = (HB)->
         @end.execute()
       super uid, prev, next, origin
 
+    type: "ListManager"
+
     #
     # @private
     # @see Operation.execute
@@ -195,6 +216,22 @@ module.exports = (HB)->
       if initial_content?
         @replace initial_content
 
+    type: "ReplaceManager"
+
+    applyDelete: ()->
+      o = @beginning
+      while o?
+        o.applyDelete()
+        o = o.next_cl
+      # if this was created by an AddName operation, delete it too
+      if @add_name_ops?
+        for o in @add_name_ops
+          o.applyDelete()
+      super()
+
+    cleanup: ()->
+      super()
+
     #
     # Replace the existing word with a new word.
     #
@@ -205,6 +242,7 @@ module.exports = (HB)->
       o = @getLastOperation()
       op = new Replaceable content, @, replaceable_uid, o, o.next_cl
       HB.addOperation(op).execute()
+      undefined
 
     #
     # Add change listeners for parent.
@@ -222,7 +260,7 @@ module.exports = (HB)->
         @deleteListener 'addProperty', addPropertyListener
       @on 'insert', addPropertyListener
       super parent
-      
+
     #
     # Get the value of this WordType
     # @return {String}
@@ -247,8 +285,8 @@ module.exports = (HB)->
       if @prev_cl? and @next_cl?
         json['prev'] = @prev_cl.getUid()
         json['next'] = @next_cl.getUid()
-      if @origin? and @origin isnt @prev_cl
+      if @origin? # and @origin isnt @prev_cl
-        json["origin"] = @origin.getUid()
+        json["origin"] = @origin().getUid()
       json
 
   parser["ReplaceManager"] = (json)->
@@ -279,10 +317,12 @@ module.exports = (HB)->
     constructor: (content, parent, uid, prev, next, origin)->
       @saveOperation 'content', content
       @saveOperation 'parent', parent
-      if not (prev? and next? and content?)
+      if not (prev? and next?)
-        throw new Error "You must define content, prev, and next for Replaceable-types!"
+        throw new Error "You must define prev, and next for Replaceable-types!"
       super uid, prev, next, origin
 
+    type: "Replaceable"
+
     #
     # Return the content that this operation holds.
     #
@@ -295,6 +335,17 @@ module.exports = (HB)->
     replace: (content)->
       @parent.replace content
 
+    applyDelete: ()->
+      if @content?
+        @content.applyDelete()
+        @content.dontSync()
+      @beforeDelete = @content # TODO!!!!!!!!!!
+      @content = null
+      super
+
+    cleanup: ()->
+      super
+
     #
     # If possible set the replace manager in the content.
     # @see WordType.setReplaceManager
@@ -303,8 +354,15 @@ module.exports = (HB)->
       if not @validateSavedOperations()
         return false
       else
-        @content.setReplaceManager?(@parent)
+        @content?.setReplaceManager?(@parent)
-        super
+        ins_result = super()
+        if ins_result
+          if @next_cl.type is "Delimiter" and @prev_cl.type isnt "Delimiter"
+            @prev_cl.applyDelete()
+          else if @next_cl.type isnt "Delimiter"
+            @applyDelete()
+
+        return ins_result
 
     #
     # Encode this operation in such a way that it can be parsed by remote peers.
@@ -313,7 +371,7 @@ module.exports = (HB)->
       json =
         {
           'type': "Replaceable"
-          'content': @content.getUid()
+          'content': @content?.getUid()
           'ReplaceManager' : @parent.getUid()
           'prev': @prev_cl.getUid()
           'next': @next_cl.getUid()

lib/Types/TextTypes.coffee

@@ -26,6 +26,9 @@ module.exports = (HB)->
       if not (prev? and next?)
         throw new Error "You must define prev, and next for TextInsert-types!"
       super uid, prev, next, origin
+
+    type: "TextInsert"
+
     #
     # Retrieve the effective length of the $content of this operation.
     #
@@ -35,13 +38,17 @@ module.exports = (HB)->
       else
         @content.length
 
+    applyDelete: ()->
+      @content = null
+      super
+
     #
     # The result will be concatenated with the results from the other insert operations
     # in order to retrieve the content of the engine.
     # @see HistoryBuffer.toExecutedArray
     #
     val: (current_position)->
-      if @isDeleted()
+      if @isDeleted() or not @content?
         ""
       else
         @content
@@ -59,7 +66,7 @@ module.exports = (HB)->
           'prev': @prev_cl.getUid()
           'next': @next_cl.getUid()
         }
-      if @origin? and @origin isnt @prev_cl
+      if @origin isnt @prev_cl
         json["origin"] = @origin.getUid()
       json
 
@@ -98,16 +105,32 @@ module.exports = (HB)->
     #
     type: "WordType"
 
+    applyDelete: ()->
+      o = @beginning
+      while o?
+        o.applyDelete()
+        o = o.next_cl
+      super()
+
+    cleanup: ()->
+      super()
+
     #
     # Inserts a string into the word.
     #
     # @return {WordType} This WordType object.
     #
     insertText: (position, content)->
-      o = @getOperationByPosition position
+      # TODO: getOperationByPosition should return "(i-2)th" character
+      ith = @getOperationByPosition position # the (i-1)th character. e.g. "abc" a is the 0th character
+      left = ith.prev_cl # left is the non-deleted charather to the left of ith
+      while left.isDeleted()
+        left = left.prev_cl # find the first character to the left, that is not deleted. Case position is 0, its the Delimiter.
+      right = left.next_cl
       for c in content
-        op = new TextInsert c, undefined, o.prev_cl, o
+        op = new TextInsert c, undefined, left, right
         HB.addOperation(op).execute()
+        left = op
       @
 
     #
@@ -300,8 +323,8 @@ module.exports = (HB)->
         json['prev'] = @prev_cl.getUid()
       if @next_cl?
         json['next'] = @next_cl.getUid()
-      if @origin? and @origin isnt @prev_cl
+      if @origin? # and @origin isnt @prev_cl
-        json["origin"] = @origin.getUid()
+        json["origin"] = @origin().getUid()
       json
 
   parser['WordType'] = (json)->

test/JsonYatta_test.coffee

@@ -14,7 +14,9 @@ Test = require "./TestSuite"
 
 class JsonTest extends Test
   makeNewUser: (user, conn)->
-    new Y.JsonFramework user, conn
+    super new Y.JsonFramework user, conn
+
+  type: "JsonTest"
 
   getRandomRoot: (user_num, root)->
     root ?= @users[user_num].getSharedObject()
@@ -69,6 +71,7 @@ describe "JsonFramework", ->
     done()
 
   it "can handle many engines, many operations, concurrently (random)", ->
+    console.log "" # TODO
     @yTest.run()
 
   it "has a change listener", ()->
@@ -95,7 +98,7 @@ describe "JsonFramework", ->
 
 
   it "has a JsonTypeWrapper", ->
-    y = this.yTest.getSomeUser().root_element
+    y = this.yTest.getSomeUser().getSharedObject()
     y.val('x',"dtrn", 'immutable')
     y.val('set',{x:"x"}, 'immutable')
     w = y.value
@@ -109,6 +112,7 @@ describe "JsonFramework", ->
     y.value.x = {q:4}
     expect(y.value.x.q).to.equal(4)
 
+  ### TODO: Handle this test
   it "handles double-late-join", ->
     test = new JsonTest("double")
     test.run()
@@ -120,6 +124,11 @@ describe "JsonFramework", ->
     u1.engine.applyOps ops2
     u2.engine.applyOps ops1
     expect(u2.value.name.val()).to.equal(u2.value.name.val())
+  ###
+
+  it "has a working test suite", ->
+    @yTest.compareAll()
+
 
   it "can handle creaton of complex json", ->
     @yTest.getSomeUser().val('x', {'a':'b'})
@@ -128,10 +137,10 @@ describe "JsonFramework", ->
     @yTest.getSomeUser().val('c', {'a':'c'})
     @yTest.getSomeUser().val('c', {'a':'b'})
     @yTest.compareAll()
-    @yTest.getSomeUser().value.a.a.q.insertText(0,'AAA')
+    q = @yTest.getSomeUser().value.a.a.q
+    q.insertText(0,'A')
     @yTest.compareAll()
-    expect(@yTest.getSomeUser().value.a.a.q.val()).to.equal("AAAdtrndtrtdrntdrnrtdnrtdnrtdnrtdnrdnrdt")
+    expect(@yTest.getSomeUser().value.a.a.q.val()).to.equal("Adtrndtrtdrntdrnrtdnrtdnrtdnrtdnrdnrdt")
-
 
   it "handles immutables and primitive data types", ->
     @yTest.getSomeUser().val('string', "text", "immutable")
@@ -144,18 +153,5 @@ describe "JsonFramework", ->
     expect(@yTest.getSomeUser().val('object').val('q')).to.equal "rr"
     expect(@yTest.getSomeUser().val('null') is null).to.be.ok
 
-  it "converges t1", ->
-    op0 = {"type":"Delimiter","uid":{"creator":0,"op_number":0},"next":{"creator":0,"op_number":1}}
-    op1 = {"type":"Delimiter","uid":{"creator":0,"op_number":1},"prev":{"creator":0,"op_number":0}}
-    op2 = {"type":"WordType","uid":{"creator":0,"op_number":2},"beginning":{"creator":0,"op_number":0},"end":{"creator":0,"op_number":1}}
-    op3 = {"type":"AddName","uid":{"creator":0,"op_number":3},"map_manager":{"creator":"_","op_number":"_"},"name":"name"}
-    op4 = {"type":"Replaceable","content":{"creator":0,"op_number":2},"ReplaceManager":{"creator":"_","op_number":"___RM_name"},"prev":{"creator":"_","op_number":"___RM_name_beginning"},"next":{"creator":"_","op_number":"___RM_name_end"},"uid":{"creator":0,"op_number":4}}
-    op5 = {"type":"TextInsert","content":"u","uid":{"creator":1,"op_number":2},"prev":{"creator":1,"op_number":0},"next":{"creator":1,"op_number":1}}
-    op6 = {"type":"TextInsert","content":"w","uid":{"creator":2,"op_number":0},"prev":{"creator":0,"op_number":0},"next":{"creator":0,"op_number":1}}
-    op7 = {"type":"TextInsert","content":"d","uid":{"creator":1,"op_number":0},"prev":{"creator":0,"op_number":0},"next":{"creator":2,"op_number":0}}
-    op8 = {"type":"TextInsert","content":"a","uid":{"creator":1,"op_number":1},"prev":{"creator":1,"op_number":0},"next":{"creator":2,"op_number":0}}
 
-    ops = [op0, op1, op2, op3, op4, op5, op6, op7, op8]
-    @test_user.engine.applyOps ops
-    expect(@test_user.val('name').val()).to.equal("duaw")
 

test/TestSuite.coffee

@@ -14,8 +14,8 @@ module.exports = class Test
   constructor: (@name_suffix = "")->
     @number_of_test_cases_multiplier = 1
     @repeat_this = 1 * @number_of_test_cases_multiplier
-    @doSomething_amount = 200 * @number_of_test_cases_multiplier
+    @doSomething_amount = 800 * @number_of_test_cases_multiplier
-    @number_of_engines =  7 + @number_of_test_cases_multiplier - 1
+    @number_of_engines = 5 + @number_of_test_cases_multiplier - 1
 
     @time = 0
     @ops = 0
@@ -29,12 +29,14 @@ module.exports = class Test
     @users = []
     @Connector = Connector_uninitialized @users
     for i in [0...@number_of_engines]
-      @users.push @makeNewUser (i+@name_suffix), @Connector
+      u = @makeNewUser (i+@name_suffix), @Connector
+      @users.push u
     @users[0].val('name',"i")
     @flushAll()
 
-  makeNewUser: (user_id, Connector)->
+  makeNewUser: (user)->
-    throw new Error "overwrite me!"
+    user.HB.setManualGarbageCollect()
+    user
 
   getSomeUser: ()->
     i = _.random 0, (@users.length-1)
@@ -43,6 +45,7 @@ module.exports = class Test
   getRandomText: (chars, min_length = 0)->
     chars ?= "abcdefghijklmnopqrstuvwxyz"
     length = _.random min_length, 10
+    #length = 1
     nextchar = chars[(_.random 0, (chars.length-1))]
     text = ""
     _(length).times ()-> text += nextchar
@@ -74,11 +77,6 @@ module.exports = class Test
           y.insertText pos, @getRandomText()
           null
         types: [types.WordType]
-      ,
-        f : (y)=> # REPLACE TEXT
-          y.replaceText @getRandomText()
-          null
-        types: [types.WordType]
       ,
         f : (y)-> # DELETE TEXT
           if y.val().length > 0
@@ -87,8 +85,12 @@ module.exports = class Test
             ops1 = y.deleteText pos, length
           undefined
         types : [types.WordType]
+      ,
+        f : (y)=> # REPLACE TEXT
+          y.replaceText @getRandomText()
+          null
+        types: [types.WordType]
     ]
-
   getRandomRoot: (user_num)->
     throw new Error "overwrite me!"
 
@@ -116,8 +118,10 @@ module.exports = class Test
     choice = _.random (choices.length-1)
     choices[choice](user_num)
 
-  flushAll: ()->
+  flushAll: (final)->
-    if @users.length <= 1
+    # TODO:!!
+    final = false
+    if @users.length <= 1 or not final
       for user,user_number in @users
         user.getConnector().flushAll()
     else
@@ -129,7 +133,7 @@ module.exports = class Test
 
 
   compareAll: (test_number)->
-    @flushAll()
+    @flushAll(true)
 
     @time += (new Date()).getTime() - @time_now
 
@@ -139,8 +143,8 @@ module.exports = class Test
     @ops += number_of_created_operations*@users.length
 
     ops_per_msek = Math.floor(@ops/@time)
-    if test_number? and @debug
+    if test_number? # and @debug
-      console.log "#{test_number}/#{@repeat_this}: Every collaborator (#{@users.length}) applied #{number_of_created_operations} ops in a different order." + " Over all we consumed #{@ops} operations in #{@time/1000} seconds (#{ops_per_msek} ops/msek)."
+      console.log "#{test_number}/#{@repeat_this}: #{number_of_created_operations} were created and applied on (#{@users.length}) users ops in a different order." + " Over all we consumed #{@ops} operations in #{@time/1000} seconds (#{ops_per_msek} ops/msek)."
 
     for i in [0...(@users.length-1)]
       if @debug
@@ -179,7 +183,12 @@ module.exports = class Test
       console.log ''
     for times in [1..@repeat_this]
       @time_now = (new Date).getTime()
-      for i in [1..@doSomething_amount]
+      for i in [1..Math.floor(@doSomething_amount/2)]
+        @doSomething()
+      @flushAll(false)
+      for u in @users
+        u.HB.emptyGarbage()
+      for i in [1..Math.floor(@doSomething_amount/2)]
         @doSomething()
 
       @compareAll(times)
@@ -188,8 +197,13 @@ module.exports = class Test
         @reinitialize()
 
   testHBencoding: ()->
-    @users[@users.length] = @makeNewUser 'testuser', (Connector_uninitialized [])
+    # in case of JsonFramework, every user will create its JSON first! therefore, the testusers id must be small than all the others (see InsertType)
+    @users[@users.length] = @makeNewUser (-1), (Connector_uninitialized [])
     @users[@users.length-1].engine.applyOps @users[0].HB._encode()
 
+    #if @getContent(@users.length-1) isnt @getContent(0)
+    #  console.log "testHBencoding:"
+    #  console.log "Unprocessed ops first: #{@users[0].engine.unprocessed_ops.length}"
+    #  console.log "Unprocessed ops last: #{@users[@users.length-1].engine.unprocessed_ops.length}"
     expect(@getContent(@users.length-1)).to.deep.equal(@getContent(0))
 

test/TextYatta_test.coffee

@@ -11,10 +11,12 @@ Y = require "../lib/index"
 Connector_uninitialized = require "../lib/Connectors/TestConnector"
 
 Test = require "./TestSuite"
-
 class TextTest extends Test
+
+  type: "TextTest"
+
   makeNewUser: (user, conn)->
-    new Y.TextFramework user, conn
+    super new Y.TextFramework user, conn
 
   getRandomRoot: (user_num)->
     @users[user_num].getSharedObject()
@@ -22,7 +24,6 @@ class TextTest extends Test
   getContent: (user_num)->
     @users[user_num].val()
 
-
 describe "TextFramework", ->
   beforeEach (done)->
     @timeout 50000
@@ -32,5 +33,14 @@ describe "TextFramework", ->
     @test_user = @yTest.makeNewUser 0, (Connector_uninitialized [])
     done()
 
+  it "simple multi-char insert", ->
+    u = @yTest.getSomeUser()
+    u.insertText 0, "abc"
+    @yTest.compareAll()
+    expect(u.val()).to.equal("abc")
+
   it "can handle many engines, many operations, concurrently (random)", ->
     @yTest.run()
+
+
+