010.xml - mozsearch

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<html xmlns="http://www.w3.org/1999/xhtml">

 <head>

  <title>DOM Traversal: NodeIterator: Filters</title>

  <script type="text/javascript"> <![CDATA[

    function doTest() {

      var iterator = document.createNodeIterator(document, NodeFilter.SHOW_ALL, testFilter, false);

      // skips text nodes and body element

      var expected = new Array(9, // document

                               1, // html

                               1, // head

                               1, // title

                               1, 4, // script and CDATA block

                               // body (skipped)

                               1, // pre

                               // </body>

                               8, // <!-- -->

                               // PI skipped

                               4); // CDATA

      var found = new Array();

      // walk document

      var node;

      while (node = iterator.nextNode())

        found.push(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';

    function testFilter(n) {

      if (n.nodeType == 3) {

        return NodeFilter.FILTER_SKIP;

      } else if (n.nodeName == 'body') {

        return NodeFilter.FILTER_REJECT; // same as _SKIP

      return 1; // FILTER_ACCEPT

  ]]></script>

 </head>

 <body onload="doTest()">

  <pre id="result">FAIL: Script failed to run.</pre>

 </body>

 <!-- some more nodes to test this: -->

 <?body test?>

 <![CDATA[]]>

</html>