<html xmlns="http://www.w3.org/1999/xhtml"> | |
<head> | |
<title>DOM Traversal: NodeIterator: Basics Backwards</title> | |
<script type="text/javascript"> <![CDATA[ | |
function doTest() { | |
var iterator = document.createNodeIterator(document, NodeFilter.SHOW_ALL, null, false); | |
var expected = new Array(9, // document | |
1, // html | |
3, 1, // head | |
3, 1, 3, // title | |
3, 1, 3, 4, // script and CDATA block | |
3, 3, 1, // body | |
3, 1, 3, // pre | |
3, // </body> | |
3, 8, // <!-- --> | |
3, 7, // <? ?>, | |
3, 4, 3); // CDATA | |
var found = new Array(); | |
// walk document | |
var node; | |
while (node = iterator.nextNode()); | |
while (node = iterator.previousNode()) | |
found.unshift(node.nodeType); | |
// check results | |
var errors = 0; | |
var s = ''; | |
var length = (found.length > expected.length) ? found.length : expected.length; | |
s += 'EXPECTED FOUND\n'; | |
for (var i = 0; i < length; i += 1) { | |
s += ' ' + (expected[i] ? expected[i] : '-') + | |
' ' + (found[i] ? found[i] : '-'); | |
if (found[i] != expected[i]) { | |
s += ' MISMATCH'; | |
errors += 1; | |
} | |
s += '\n'; | |
} | |
var p = document.getElementsByTagNameNS('http://www.w3.org/1999/xhtml', 'pre')[0]; | |
if (errors) | |
p.firstChild.data = 'FAIL: ' + errors + ' errors found:\n\n' + s; | |
else | |
p.firstChild.data = 'PASS'; | |
} | |
]]></script> | |
</head> | |
<body onload="doTest()"> | |
<pre id="result">FAIL: Script failed to run.</pre> | |
</body> | |
<!-- some more nodes to test this: --> | |
<?test node?> | |
</html> |