| <body> | |
| Classes to programmatically filter nodes of a document based on type, name, | |
| value, or other aspects and to boolean and/or/negate these rules. Filters can | |
| be used in methods like getContent(Filter) and getDescendants(Filter). A | |
| sampling of generally useful filters are provided here. Alternate filters can | |
| be user defined. | |
| </body> |