pjs/dom/tests/js/DumpTree.js

57 строки
1.6 KiB
JavaScript

/* -*- Mode: js; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
//
// travers the html tree and dump out the type of element
//
function traverse(node, indent)
{
dump("\n")
indent += " "
var type = node.nodeType;
// if it's an element dump the tag and recurse the children
if (type == Node.ELEMENT_NODE) {
dump(indent + node.tagName)
// go through the children
if (node.hasChildNodes()) {
var children = node.childNodes;
var length = children.length;
var count = 0;
while(count < length) {
child = children[count]
traverse(child, indent)
count++
}
}
}
// it's just text, no tag, dump "Text"
else if (type == Node.TEXT_NODE) {
dump(indent + "Text")
}
}
var node = document.documentElement
traverse(node, "")
dump("\n")