gecko-dev/dom/tests/js/DumpHTML.js

/* -*- Mode: js; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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/. */


//
// Dump the html content in html format
//
function html(node)
{
    var type = node.nodeType;
    if (type == Node.ELEMENT_NODE) {

        // open tag
        dump("<" + 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) {
                    dump(" " + att.value)
                }
                index++
            }
        }

        // close tag
        dump(">")

        // 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(child)
                count++
            }
            dump("</" + node.tagName + ">");
        }

        
    }
    // if it's a piece of text just dump the text
    else if (type == Node.TEXT_NODE) {
        dump(node.data)
    }
}

html(document.documentElement)
dump("\n")