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Browser interest query
Test file is called index.html
diff --git a/latest/encoding/dom-js.js b/latest/encoding/dom-js.js
new file mode 100644
index 0000000..3cabaec
--- /dev/null
+++ b/latest/encoding/dom-js.js
@@ -0,0 +1,188 @@
+var sax = require("./sax");
+var strict = true;
+
+/**
+ * Really simple XML DOM implementation based on sax that works with Strings.
+ *
+ * If you have an XML string and want a DOM this utility is convenient.
+ *
+ * var domjs = new DomJS();
+ * domjs.parse(xmlString, function(err, dom) {
+ *
+ * });
+ *
+ * If you want to compile C there are versions based on libxml2
+ * and jsdom is full featured but complicated.
+ *
+ * This is "lightweight" meaning really simple and serves my purpose, it does not support namespaces or all
+ * of the features of XML 1.0 it just takes a string and returns a JavaScript object graph.
+ *
+ * There are only three types of object supported Element, Text and Comment.
+ *
+ * e.g.
+ *
+ * take <xml><elem att="val1"/><elem att="val1"/><elem att="val1"/></xml>
+ *
+ * return { name : "xml",
+ * attributes : {}
+ * children [
+ * { name : "elem", attributes : {att:'val1'}, children [] },
+ * { name : "elem", attributes : {att:'val1'}, children [] },
+ * { name : "elem", attributes : {att:'val1'}, children [] }
+ * ]
+ * }
+ *
+ * The object returned can be serialized back out with obj.toXml();
+ *
+ *
+ * @constructor DomJS
+ */
+DomJS = function() {
+ this.root = null;
+ this.stack = new Array();
+ this.currElement = null;
+ this.error = false;
+};
+
+DomJS.prototype.parse = function(string, cb) {
+ if (typeof string != 'string') {
+ cb(true, 'Data is not a string');
+ return;
+ }
+ var self = this;
+ parser = sax.parser(strict);
+
+ parser.onerror = function (err) {
+ self.error = true;
+ cb(true, err);
+ };
+ parser.ontext = function (text) {
+ if (self.currElement == null) {
+ // console.log("Content in the prolog " + text);
+ return;
+ }
+ var textNode = new Text(text);
+ self.currElement.children.push(textNode);
+ };
+ parser.onopencdata = function () {
+ var cdataNode = new CDATASection();
+ self.currElement.children.push(cdataNode);
+ };
+ parser.oncdata = function (data) {
+ var cdataNode = self.currElement.children[self.currElement.children.length - 1];
+ cdataNode.appendData(data);
+ };
+ // do nothing on parser.onclosecdata
+ parser.onopentag = function (node) {
+ var elem = new Element(node.name, node.attributes);
+ if (self.root == null) {
+ self.root = elem;
+ }
+ if (self.currElement != null) {
+ self.currElement.children.push(elem);
+ }
+ self.currElement = elem;
+ self.stack.push(self.currElement);
+ };
+ parser.onclosetag = function (node) {
+ self.stack.pop();
+ self.currElement = self.stack[self.stack.length - 1 ];// self.stack.peek();
+ };
+ parser.oncomment = function (comment) {
+ if (self.currElement == null) {
+ //console.log("Comments in the prolog discarded " + comment);
+ return;
+ }
+ var commentNode = new Comment(comment);
+ self.currElement.children.push(commentNode);
+ };
+
+ parser.onend = function () {
+ if ( self.error == false) {
+ cb(false, self.root);
+ }
+ };
+
+ parser.write(string).close();
+};
+
+DomJS.prototype.reset = function() {
+ this.root = null;
+ this.stack = new Array();
+ this.currElement = null;
+ this.error = false;
+};
+
+var escape = function(string) {
+ return string.replace(/&/g, '&').replace(/>/g, '>').replace(/</g, '<').replace(/"/g, '"').replace(/'/g, ''');
+};
+
+
+Element = function(name, attributes, children ) {
+ this.name = name;
+ this.attributes = attributes || [];
+ this.children = children || [];
+}
+Element.prototype.toXml = function(sb) {
+ if (typeof sb == 'undefined') {
+ sb = {buf:''}; // Strings are pass by value in JS it seems
+ }
+ sb.buf += '<' + this.name;
+ for (att in this.attributes) {
+
+ sb.buf += ' ' + att + '="' + escape(this.attributes[att]) + '"';
+ }
+ if (this.children.length != 0) {
+ sb.buf += '>';
+ for (var i = 0 ; i < this.children.length ; i++) {
+ this.children[i].toXml(sb);
+ }
+ sb.buf += '</' + this.name + '>';
+ }
+ else {
+ sb.buf += '/>';
+ }
+ return sb.buf;
+};
+Element.prototype.firstChild = function() {
+ if ( this.children.length > 0) {
+ return this.children[0];
+ }
+ return null;
+};
+Element.prototype.text = function() {
+ if ( this.children.length > 0) {
+ if (typeof this.children[0].text == 'string') {
+ return this.children[0].text;
+ };
+ }
+ return null;
+};
+
+Text = function(data){
+ this.text = data;
+};
+Text.prototype.toXml = function(sb) {
+ sb.buf += escape(this.text);
+};
+
+Comment = function(comment) {
+ this.comment = comment;
+};
+Comment.prototype.toXml = function(sb) {
+ sb.buf += '<!--' + this.comment + '-->';
+};
+
+CDATASection = function(data){
+ this.text = data || '';
+};
+CDATASection.prototype.toXml = function(sb) {
+ sb.buf += '<![CDATA[' + this.text + ']]>';
+};
+CDATASection.prototype.appendData = function(data) {
+ this.text += data;
+};
+
+
+
+