prefix = string(pair(sprefix).cdr);
// Whether to strip the root element of the document from src
String stripRoot = "";
Value sstripRoot = assq(sargs, Symbol.get("strip-root"));
if (!sstripRoot.eq(FALSE))
stripRoot = string(pair(sstripRoot).cdr);
ContentAggregator contentAggregator
= (ContentAggregator)eventPipeline.getGenerator();
contentAggregator.addPart(src, element, ns, stripRoot, prefix);