}

    /**
     * {@link EntityReference}を追加します。
     *
     * @param entityReference
     *            実体参照。{@literal null}であってはいけません
     * @param buf
     *            文字列バッファ。{@literal null}であってはいけません
     */
    public static void appendEntityReference(final EntityReference entityReference, final StringBuilder buf) {
        assertArgumentNotNull("entityReference", entityReference);

        while (true) {
            if (eventType == XMLStreamReader.CHARACTERS || eventType == XMLStreamReader.CDATA) {
                result.append(parser.getText());
            } else if (eventType == XMLStreamReader.ENTITY_REFERENCE) {
                String val = null;
                if (strict) {
                    throw new XMLStreamException("Entities are not supported in strict mode", parser.getLocation(), null);

        while (true) {
            if (eventType == XMLStreamReader.CHARACTERS || eventType == XMLStreamReader.CDATA) {
                result.append(parser.getText());
            } else if (eventType == XMLStreamReader.ENTITY_REFERENCE) {
                String val = null;
                if (strict) {
                    throw new XMLStreamException("Entities are not supported in strict mode", parser.getLocation(), null);