Support latest htmlparser2 tree format, bump version

lib/tree_adapters/htmlparser2.js

@@ -1,16 +1,72 @@
 'use strict';
 
+//Conversion tables for DOM Level1 structure emulation
+var nodeTypes = {
+    element: 1,
+    text: 3,
+    cdata: 4,
+    comment: 8
+};
+
+var nodePropertyShorthands = {
+    tagName: 'name',
+    childNodes: 'children',
+    parentNode: 'parent',
+    previousSibling: 'prev',
+    nextSibling: 'next',
+    nodeValue: 'data'
+};
+
+//Node
+var Node = function (props) {
+    for (var key in props) {
+        if (props.hasOwnProperty(key))
+            this[key] = props[key];
+    }
+};
+
+Node.prototype = {
+    get firstChild() {
+        var children = this.children;
+        return children && children[0] || null;
+    },
+
+    get lastChild() {
+        var children = this.children;
+        return children && children[children.length - 1] || null;
+    },
+
+    get nodeType() {
+        return nodeTypes[this.type] || nodeTypes.element;
+    }
+};
+
+Object.keys(nodePropertyShorthands).forEach(function (key) {
+    var shorthand = nodePropertyShorthands[key];
+
+    Object.defineProperty(Node.prototype, key, {
+        get: function () {
+            return this[shorthand] || null;
+        },
+        set: function (val) {
+            this[shorthand] = val;
+            return val;
+        }
+    });
+});
+
+
 //Node construction
 exports.createDocument =
 exports.createDocumentFragment = function () {
-    return {
+    return new Node({
         type: 'root',
         name: 'root',
         parent: null,
         prev: null,
         next: null,
         children: []
-    };
+    });
 };
 
 exports.createElement = function (tagName, namespaceURI, attrs) {
@@ -26,10 +82,9 @@ exports.createElement = function (tagName, namespaceURI, attrs) {
         attribsPrefix[attrName] = attrs[i].prefix;
     }
 
-    return {
+    return new Node({
         type: tagName === 'script' || tagName === 'style' ? tagName : 'tag',
         name: tagName,
-        tagName: tagName,
         namespace: namespaceURI,
         attribs: attribs,
         'x-attribsNamespace': attribsNamespace,
@@ -38,27 +93,27 @@ exports.createElement = function (tagName, namespaceURI, attrs) {
         parent: null,
         prev: null,
         next: null
-    };
+    });
 };
 
 exports.createCommentNode = function (data) {
-    return {
+    return new Node({
         type: 'comment',
         data: data,
         parent: null,
         prev: null,
         next: null
-    };
+    });
 };
 
 var createTextNode = function (value) {
-    return {
+    return new Node({
         type: 'text',
         data: value,
         parent: null,
         prev: null,
         next: null
-    }
+    });
 };
 
 
@@ -92,14 +147,14 @@ exports.setDocumentType = function (document, name, publicId, systemId) {
     }
 
     else {
-        appendChild(document, {
+        appendChild(document, new Node({
             type: 'directive',
             name: '!doctype',
             data: data,
             'x-name': name,
             'x-publicId': publicId,
             'x-systemId': systemId
-        });
+        }));
     }
 
 };

package.json

@@ -1,7 +1,7 @@
 {
   "name": "parse5",
   "description": "WHATWG HTML5 specification-compliant, fast and ready for production HTML parsing/serialization toolset for Node.",
-  "version": "1.1.5",
+  "version": "1.1.6",
   "author": "Ivan Nikulin <[email protected]> (https://github.com/inikulin)",
   "contributors": [
     "Sebastian Mayr <[email protected]> (http://blog.smayr.name)",