protected void saveBaseURI(){
  fBaseURIScope.push(fDepth);
  fBaseURI.push(fCurrentBaseURI.getBaseSystemId());
  fLiteralSystemID.push(fCurrentBaseURI.getLiteralSystemId());
  fExpandedSystemID.push(fCurrentBaseURI.getExpandedSystemId());
}

protected void saveBaseURI ( ) { fBaseURIScope . push ( fDepth ) ; fBaseURI . push ( fCurrentBaseURI . getBaseSystemId ( ) ) ; fLiteralSystemID . push ( fCurrentBaseURI . getLiteralSystemId ( ) ) ; fExpandedSystemID . push ( fCurrentBaseURI . getExpandedSystemId ( ) ) ; }
saves the current base uri to the top of the stack .
