Unicode Regex; Invalid XML characters

Question

The list of valid XML characters is well known, as defined by the spec it\'s:

#x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
<         


        

Answer 1

I tried this in java and it works:

private String filterContent(String content) {
    return content.replaceAll("[^\\u0009\\u000a\\u000d\\u0020-\\uD7FF\\uE000-\\uFFFD]", "");
}

Thank you Jeff.