Added vulcanize under third_party/npm_modules

node_modules/vulcanize/node_modules/whacko/lib/render.js

Index: node_modules/vulcanize/node_modules/whacko/lib/render.js
diff --git a/node_modules/vulcanize/node_modules/whacko/lib/render.js b/node_modules/vulcanize/node_modules/whacko/lib/render.js
new file mode 100644
index 0000000000000000000000000000000000000000..02809d10889333570892740609385d9c1a351d8f
--- /dev/null
+++ b/node_modules/vulcanize/node_modules/whacko/lib/render.js
@@ -0,0 +1,160 @@
+/*
+ Module dependencies
+ */
+var parse5 = require('parse5');
+var _ = require('lodash');
+var utils = require('./utils');
+
+var encode = utils.encode;
+
+var serializer = new parse5.TreeSerializer(parse5.TreeAdapters.htmlparser2);
+
+/*
+ Boolean Attributes
+ */
+var rboolean = /^(?:autofocus|autoplay|async|checked|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped|selected)$/i;
+
+/*
+ Format attributes
+ */
+var formatAttrs = function (attributes) {
+    if (!attributes) return;
+
+    var output = '',
+        value;
+
+    // Loop through the attributes
+    for (var key in attributes) {
+        value = attributes[key];
+        if (output) {
+            output += ' ';
+        }
+
+        if (!value && (rboolean.test(key) || key === '/')) {
+            output += key;
+        } else {
+            output += key + '="' + encode(value) + '"';
+        }
+    }
+
+    return output;
+};
+
+/*
+ Self-enclosing tags (stolen from node-htmlparser)
+ */
+var singleTag = {
+    area: 1,
+    base: 1,
+    basefont: 1,
+    br: 1,
+    col: 1,
+    frame: 1,
+    hr: 1,
+    img: 1,
+    input: 1,
+    isindex: 1,
+    link: 1,
+    meta: 1,
+    param: 1,
+    embed: 1,
+    include: 1,
+    'yield': 1
+};
+
+/*
+ Tag types from htmlparser
+ */
+var tagType = {
+    tag: 1,
+    script: 1,
+    link: 1,
+    style: 1,
+    template: 1
+};
+
+var render = module.exports = function (dom, opts) {
+    opts = opts || {};
+
+    if (!Array.isArray(dom) && !dom.cheerio)
+        dom = dom.type === 'root' ?  dom.children : [dom];
+
+    if (!opts.xmlMode) {
+        return serializer.serialize({
+            type: 'fake-root',
+            name: 'fake-root',
+            children: dom
+        });
+    }
+
+
+    var output = '',
+        xmlMode = opts.xmlMode;
+
+    _.each(dom, function (elem) {
+        var isTag = tagType[elem.type];
+
+        var pushVal;
+        if (isTag)
+            pushVal = renderTag(elem, xmlMode);
+        else if (elem.type === 'directive')
+            pushVal = renderDirective(elem);
+        else if (elem.type === 'comment')
+            pushVal = renderComment(elem);
+        else if (elem.type === 'cdata')
+            pushVal = renderCdata(elem);
+        else
+            pushVal = renderText(elem);
+
+        if (elem.children && elem.type !== 'cdata')
+            pushVal += render(elem.children, opts);
+
+        if (isTag && (!singleTag[elem.name] || xmlMode)) {
+            if (!isClosedTag(elem, xmlMode)) {
+                pushVal += '</' + elem.name + '>';
+            }
+        }
+
+        // Push rendered DOM node
+        output += pushVal;
+    });
+
+    return output;
+};
+
+var isClosedTag = function (elem, xmlMode) {
+    return (xmlMode && (!elem.children || elem.children.length === 0));
+};
+
+var renderTag = function (elem, xmlMode) {
+    var tag = '<' + elem.name,
+        attribs = formatAttrs(elem.attribs);
+
+    if (attribs) {
+        tag += ' ' + attribs;
+    }
+
+    if (isClosedTag(elem, xmlMode)) {
+        tag += '/';
+    }
+
+    return tag + '>';
+};
+
+var renderDirective = function (elem) {
+    return '<' + elem.data + '>';
+};
+
+var renderText = function (elem) {
+    return elem.data || '';
+};
+
+var renderCdata = function (elem) {
+    return '<![CDATA[' + elem.children[0].data + ']]>';
+};
+
+var renderComment = function (elem) {
+    return '<!--' + elem.data + '-->';
+};
+
+// module.exports = $.extend(exports);