Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/lib/parse.js

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/lib/parse.js
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/lib/parse.js b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/lib/parse.js
new file mode 100644
index 0000000000000000000000000000000000000000..7add78f5fca43e659d3e19ee801ae6029241368f
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+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/lib/parse.js
@@ -0,0 +1,124 @@
+/*
+  Module Dependencies
+*/
+var htmlparser = require('htmlparser2'),
+    _ = require('underscore'),
+    isTag = require('./utils').isTag,
+    camelCase = require('./utils').camelCase;
+
+/*
+  Parser
+*/
+exports = module.exports = function(content, options) {
+  var dom = evaluate(content, options);
+
+  // Generic root element
+  var root = {
+    type: 'root',
+    name: 'root',
+    parent: null,
+    prev: null,
+    next: null,
+    children: []
+  };
+
+  // Update the dom using the root
+  update(dom, root);
+
+  return root;
+};
+
+var evaluate = exports.evaluate = function(content, options) {
+  // options = options || $.fn.options;
+
+  var handler = new htmlparser.DomHandler(options),
+      parser = new htmlparser.Parser(handler, options);
+
+  parser.write(content);
+  parser.done();
+
+  return connect(handler.dom);
+};
+
+var connect = exports.connect = function(dom, parent) {
+  parent = parent || null;
+
+  var prevElem = null;
+
+  _.each(dom, function(elem) {
+
+    if (isTag(elem.type)) {
+      // If tag and no attributes, add empty object
+      if (elem.attribs === undefined) {
+        elem.attribs = {};
+      } else {
+        // If there are already attributes, add them to the data list.
+        elem.data = parseData(elem);
+      }
+    }
+
+    // Set parent
+    elem.parent = parent;
+
+    // Previous Sibling
+    elem.prev = prevElem;
+
+    // Next sibling
+    elem.next = null;
+    if (prevElem) prevElem.next = elem;
+
+    // Run through the children
+    if (elem.children)
+      connect(elem.children, elem);
+    else if (isTag(elem.type))
+      elem.children = [];
+
+    // Get ready for next element
+    prevElem = elem;
+  });
+
+  return dom;
+};
+
+/*
+  Update the dom structure, for one changed layer
+
+  * Much faster than reconnecting
+*/
+var update = exports.update = function(arr, parent) {
+  // normalize
+  if (!Array.isArray(arr)) arr = [arr];
+
+  // Update neighbors
+  for (var i = 0; i < arr.length; i++) {
+    arr[i].prev = arr[i - 1] || null;
+    arr[i].next = arr[i + 1] || null;
+    arr[i].parent = parent || null;
+  }
+
+  // Update parent
+  parent.children = arr;
+
+  return parent;
+};
+
+/**
+ * Extract data by using element attributes.
+ * @param  {Object} elem Element
+ * @return {Object}      `element.data` object
+ */
+var parseData = exports.parseData = function(elem) {
+  if (elem.data === undefined) elem.data = {};
+  var value;
+  for (var key in elem.attribs) {
+    if (key.substr(0, 5) === 'data-') {
+      value = elem.attribs[key];
+      key = key.slice(5);
+      key = camelCase(key);
+      elem.data[key] = value;
+    }
+  }
+  return elem.data;
+};
+
+// module.exports = $.extend(exports);