* @param augs     Additional information that may include infoset augmentations
     *
     * @throws XNIException Thrown by handler to signal an error.
     */
    public void processingInstruction(String target, XMLString data, Augmentations augs)
        throws XNIException {

        // call handlers
        if (fDocumentHandler != null) {
            fDocumentHandler.processingInstruction(target, data, augs);
        }

    }