import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/tests/js/HTMLString.js

@@ -0,0 +1,66 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+//
+// return a string representing the html content in html format 
+//
+function htmlString(node, indent)
+{
+    var html = ""
+    indent += "  "
+
+    var type = node.nodeType
+    if (type == Node.ELEMENT) {
+
+        // open tag
+        html += "\n" + indent + "<" + node.tagName
+
+        // dump the attributes if any
+        attributes = node.attributes
+        if (null != attributes) {
+            var countAttrs = attributes.length
+            var index = 0
+            while(index < countAttrs) {
+                att = attributes[index]
+                if (null != att) {
+                    html += " "
+                    html += att.name + "=" + att.value;
+                }
+                index++
+            }
+        }
+
+        // end tag
+        html += ">"
+
+        // recursively dump the children
+        if (node.hasChildNodes) {
+            // get the children
+            var children = node.childNodes
+            var length = children.length
+            var count = 0;
+            while(count < length) {
+                child = children[count]
+                html += htmlString(child, indent)
+                count++
+            }
+        }
+
+        // close tag
+        html += "\n" + indent + "</" + node.tagName + ">"
+    }
+    // if it's a piece of text just dump the text
+    else if (type == Node.TEXT) {
+        html += node.data
+    }
+
+    return html;
+}
+
+htmlString(document.documentElement, "") 
+
+
+