IteratorView Sample

| IteratorView |
| The `IteratorView` is an interactive UI sample that displays the DOM tree. It shows the progress of the iteration by moving the selection within the DOM tree. Buttons act as a control panel, allowing the user to interactively iterate through the tree, remove nodes, add nodes, and view the results immediately in the tree. The `IteratorView` uses an example filter, `NameNodeFilter`, that can be controlled from the UI and a `DOMTreeFull` class that displays the full DOM tree with all the nodes. The controls are called through to to the corresponding iterator function. If you are familiar with the DOM Level 2 Traversal specification, these controls are fairly easy to understand
| Iterator Group |
| Next - calls the `next()` functions and selects the next node in the tree. Previous - calls the `previous()` function and selects the previous node in the tree.
| Selected Node Group |
| `remove` - remove the selected Node and update the DOM tree. You must press an iterator button to see next or previous node selection. `add` - add a text node, to see the results of adding a node on the iterator. position. Again you must first press next or previous
| Iterator Settings Group |
| `createNodeIterator` - calls the factory method to create a new iterator with the corresponding `whatToShow` and `NameNodeFilter` settings. The root is set to be the root of the document, so it starts at the top level each time. `whatToShow` - you can singly or multiply select values and the iterator is constrained to showing these types. `NodeNameFilter` - An empty string is converted to null and given to the `NodeNameFilter` class. An empty string matches all nodes. A non-empty string is forced to match node names.
| Running IteratorView |
    java dom.traversal.IteratorView <fileName>

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