Definition
DOM Standard defines NodeFilter
[Exposed=Window]
callback interface NodeFilter {
// Constants for acceptNode()
const unsigned short FILTER_ACCEPT = 1;
const unsigned short FILTER_REJECT = 2;
const unsigned short FILTER_SKIP = 3;
// Constants for whatToShow
const unsigned long SHOW_ALL = 0xFFFFFFFF;
const unsigned long SHOW_ELEMENT = 0x1;
const unsigned long SHOW_ATTRIBUTE = 0x2;
const unsigned long SHOW_TEXT = 0x4;
const unsigned long SHOW_CDATA_SECTION = 0x8;
const unsigned long SHOW_ENTITY_REFERENCE = 0x10; // legacy
const unsigned long SHOW_ENTITY = 0x20; // legacy
const unsigned long SHOW_PROCESSING_INSTRUCTION = 0x40;
const unsigned long SHOW_COMMENT = 0x80;
const unsigned long SHOW_DOCUMENT = 0x100;
const unsigned long SHOW_DOCUMENT_TYPE = 0x200;
const unsigned long SHOW_DOCUMENT_FRAGMENT = 0x400;
const unsigned long SHOW_NOTATION = 0x800; // legacy
unsigned short acceptNode(Node node);
};