return this;
    }

    private void writeCDATA(char[] cdata, int offset, int count) throws IOException {
        int end = offset + count;
        for (int i = offset; i < end;) {
            int codePoint = Character.codePointAt(cdata, i);
            i += Character.charCount(codePoint);
            writeCDATA(codePoint);
        }
    }

    private void writeCDATA(CharSequence cdata) throws IOException {