зеркало из https://github.com/mozilla/gecko-dev.git
44 строки
1.1 KiB
JavaScript
44 строки
1.1 KiB
JavaScript
/* -*- 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/. */
|
|
|
|
|
|
//
|
|
// 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")
|
|
|
|
|