Adds an entire stream to an output stream,
calls next() on the inputStream argument until hasNext() returns false
This should be treated as a convenience method that will
perform the following loop over all the events in an
event reader and call add on each event.
Returns the current value of the parse event as a string,
this returns the string value of a CHARACTERS event,
returns the value of a COMMENT, the replacement value
for an ENTITY_REFERENCE, the string value of a CDATA section,
the string value for a SPACE event,
or the String value of the internal subset of the DTD.