gecko/content/xslt/tests/buster/DiffDOM.js

137 lines
4.7 KiB
JavaScript

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is TransforMiiX XSLT processor code.
*
* The Initial Developer of the Original Code is
* Axel Hecht.
* Portions created by the Initial Developer are Copyright (C) 2001
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Axel Hecht <axel@pike.org> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// ----------------------
// DiffDOM(node1,node2)
// ----------------------
var isHTML = false;
function DiffDOM(node1, node2, aIsHTML)
{
isHTML = aIsHTML;
return DiffNodeAndChildren(node1, node2);
}
// namespace attributes in the second node are ignored
const nsreg = /^xmlns[|:\w]/;
// This function does the work of DiffDOM by recursively calling
// itself to explore the tree
function DiffNodeAndChildren(node1, node2)
{
if (!node1 && !node2)
return true;
if (!node1 || !node2)
return ErrorUp("One of the nodes is null", node1, node2);
if (node1.type!=node2.type)
return ErrorUp("Different node types", node1, node2);
var attributes = node2.attributes;
if (attributes && attributes.length) {
var item, name, ns, value, otherValue;
for (var index = 0; index < attributes.length; index++) {
item = attributes.item(index);
ns = item.namespaceURI;
if (ns) {
name = item.localName;
otherValue = node2.getAttributeNS(ns, name);
}
else {
name = item.nodeName;
otherValue = node2.getAttribute(name);
}
value = item.nodeValue;
if (!nsreg.test(name) && otherValue!=value) {
return ErrorUp("Different values for attribute", node1, node2);
}
}
}
else if (node1.attributes && node1.attributes.length) {
return ErrorUp("Different number of attributes", node1, node2);
}
if (isHTML) {
if (node1.nodeName.toLowerCase()!=node2.nodeName.toLowerCase())
return ErrorUp("Different node names", node1, node2);
}
else {
if (node1.nodeName!=node2.nodeName)
return ErrorUp("Different node names", node1, node2);
}
if (node1.nodeValue!=node2.nodeValue)
return ErrorUp("Different node values", node1, node2);
if (!isHTML)
if (node1.namespaceURI!=node2.namespaceURI)
return ErrorUp("Different namespace", node1, node2);
if (node1.hasChildNodes() != node2.hasChildNodes())
return ErrorUp("Different children", node1, node2);
if (node1.childNodes) {
if (node1.childNodes.length != node2.childNodes.length)
return ErrorUp("Different number of children", node1, node2);
for (var child = 0; child < node1.childNodes.length; child++) {
if (!DiffNodeAndChildren(node1.childNodes[child],
node2.childNodes[child])) {
return false;
}
}
}
return true;
}
function ErrorUp(errMsg, node1, node2)
{
dump("Error: "+errMsg+"\n");
if (node1) {
dump("Node 1: "+node1+", ");
if (node1.nodeType == Node.TEXT_NODE)
dump("nodeValue: "+node1.nodeValue+"\n");
else
dump("nodeName: "+node1.namespaceURI+":"+node1.nodeName+"\n");
}
if (node2) {
dump("Node 2: "+node2+", ");
if (node2.nodeType == Node.TEXT_NODE)
dump("nodeValue: "+node2.nodeValue+"\n");
else
dump("nodeName: "+node2.namespaceURI+":"+node2.nodeName+"\n");
}
return false;
}