Charset inputEncoding = Charset.forName(getInputEncoding().get());

        File destination = getDestinationFile().get().getAsFile();
        Charset outputEncoding = Charset.forName(getOutputEncoding().get());
        try (InputStreamReader inputStream = new InputStreamReader(new FileInputStream(markdownFile), inputEncoding);

        assertArgumentNotEmpty("inputEncoding", inputEncoding);
        assertArgumentNotNull("out", out);
        assertArgumentNotEmpty("outputEncoding", outputEncoding);

        final Reader is = ReaderUtil.create(in, inputEncoding);
        try {
            final Writer os = WriterUtil.create(out, outputEncoding);
            try {
                return copyInternal(wrap(is), wrap(os));

                          <SearchForm>http://localhost:8080/fess/</SearchForm>
                          <Url type="text/html" template="http://localhost:8080/fess/search?q={searchTerms}"/>
                          <InputEncoding>UTF-8</InputEncoding>
                          <OutputEncoding>UTF-8</OutputEncoding>
                        </OpenSearchDescription>
                        """, new String(InputStreamUtil.getBytes(ins)));
            }