Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/index.js

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/index.js
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/index.js b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/index.js
new file mode 100644
index 0000000000000000000000000000000000000000..8cb976b35217799db0925c05b90971d4f16127ca
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/index.js
@@ -0,0 +1,161 @@
+var ElementType = require("domelementtype");
+
+function DomHandler(callback, options, elementCB){
+	if(typeof callback === "object"){
+		elementCB = options;
+		options = callback;
+		callback = null;
+	} else if(typeof options === "function"){
+		elementCB = options;
+		options = defaultOpts;
+	}
+	this._callback = callback;
+	this._options = options || defaultOpts;
+	this._elementCB = elementCB;
+	this.dom = [];
+	this._done = false;
+	this._tagStack = [];
+}
+
+//default options
+var defaultOpts = {
+	ignoreWhitespace: false //Keep whitespace-only text nodes
+};
+
+//Resets the handler back to starting state
+DomHandler.prototype.onreset = function(){
+	DomHandler.call(this, this._callback, this._options, this._elementCB);
+};
+
+//Signals the handler that parsing is done
+DomHandler.prototype.onend = function(){
+	if(this._done) return;
+	this._done = true;
+	this._handleCallback(null);
+};
+
+DomHandler.prototype._handleCallback =
+DomHandler.prototype.onerror = function(error){
+	if(typeof this._callback === "function"){
+		this._callback(error, this.dom);
+	} else {
+		if(error) throw error;
+	}
+};
+
+DomHandler.prototype.onclosetag = function(name){
+	//if(this._tagStack.pop().name !== name) this._handleCallback(Error("Tagname didn't match!"));
+	var elem = this._tagStack.pop();
+	if(this._elementCB) this._elementCB(elem);
+};
+
+DomHandler.prototype._addDomElement = function(element){
+	var lastTag = this._tagStack[this._tagStack.length - 1];
+
+	if(lastTag){
+		lastTag.children.push(element);
+	} else { //There aren't parent elements
+		this.dom.push(element);
+	}
+};
+
+DomHandler.prototype.onopentag = function(name, attribs){
+	var lastTag = this._tagStack[this._tagStack.length - 1];
+
+	var element = {
+		type: name === "script" ? ElementType.Script : name === "style" ? ElementType.Style : ElementType.Tag,
+		name: name,
+		attribs: attribs,
+		children: [],
+		prev: null,
+		next: null,
+		parent: lastTag || null
+	};
+
+	if(lastTag){
+		var idx = lastTag.children.length;
+		while(idx > 0){
+			if(ElementType.isTag(lastTag.children[--idx])){
+				element.prev = lastTag.children[idx];
+				lastTag.children[idx].next = element;
+				break;
+			}
+		}
+		lastTag.children.push(element);
+	} else {
+		this.dom.push(element);
+	}
+
+	this._tagStack.push(element);
+};
+
+DomHandler.prototype.ontext = function(data){
+	if(this._options.ignoreWhitespace && data.trim() === "") return;
+
+	if(this._tagStack.length){
+		var lastTag;
+
+		if(
+			(lastTag = this._tagStack[this._tagStack.length - 1]) &&
+			(lastTag = lastTag.children[lastTag.children.length - 1]) &&
+			lastTag.type === ElementType.Text
+		){
+			lastTag.data += data;
+			return;
+		}
+	} else {
+		if(this.dom.length && this.dom[this.dom.length-1].type === ElementType.Text){
+			this.dom[this.dom.length-1].data += data;
+			return;
+		}
+	}
+
+	this._addDomElement({
+		data: data,
+		type: ElementType.Text
+	});
+};
+
+DomHandler.prototype.oncomment = function(data){
+	var lastTag = this._tagStack[this._tagStack.length - 1];
+
+	if(lastTag && lastTag.type === ElementType.Comment){
+		lastTag.data += data;
+		return;
+	}
+
+	var element = {
+		data: data,
+		type: ElementType.Comment
+	};
+
+	this._addDomElement(element);
+	this._tagStack.push(element);
+};
+
+DomHandler.prototype.oncdatastart = function(){
+	var element = {
+		children: [{
+			data: "",
+			type: ElementType.Text
+		}],
+		type: ElementType.CDATA
+	};
+
+	this._addDomElement(element);
+	this._tagStack.push(element);
+};
+
+DomHandler.prototype.oncommentend = DomHandler.prototype.oncdataend = function(){
+	this._tagStack.pop();
+};
+
+DomHandler.prototype.onprocessinginstruction = function(name, data){
+	this._addDomElement({
+		name: name,
+		data: data,
+		type: ElementType.Directive
+	});
+};
+
+module.exports = DomHandler;