*/
private void particle( XSParticle p ) {
// if the DOM customization is present, bind it like a wildcard
BIDom dom = builder.getLocalDomCustomization(p);
if(dom!=null) {
dom.markAsAcknowledged();
refs.add(new WildcardRef(WildcardMode.SKIP));
} else {
p.getTerm().visit(this);
}
}