java, parsing xml with specific symbols

Question

I am trying to get xml from string. Specific symbols locate in tags title. I did it:

    public class Demo {

    public static void main(String[] args) throws Exception {
        String data = "<title> \"sad\" <<dd> ><\n   </title>";
        String pattern = "(<title>)(.+?)([<>'\"&])(.+?)(\n   </title>)";
            Matcher m = Pattern.compile(pattern).matcher(data);          
            while (m.find()) {
                String bugString = m.group(3) + m.group(4);
                String fixed = bugString.replaceAll("<", "&lt;");
                fixed = fixed.replaceAll(">", "&gt;");
                fixed = fixed.replaceAll(">", "&gt;");
                fixed = fixed.replaceAll("'", "&apos;");
                fixed = fixed.replaceAll("\"", "&quot;");
                fixed = fixed.replaceAll("&", "&amp;");
                data = data.replace(bugString, fixed);
            }
            System.out.println(data);
    }

}

But it looks a little ugly. How I can improve it, if I don't want use additional library?

This is a question for codereview.stackexchange.com However I'd use JAXB to parse XML, it's a standard library now — j.con
– j.con, Commented Apr 14, 2014 at 17:40

wumpz · Accepted Answer · 2014-04-14 17:46:55Z

1

If you could influence the String you could put the titles tag text within a CDATA section. Within this you do not have to encode the special XML characters.

CDATA section is explained e.g. here http://en.m.wikipedia.org/wiki/CDATA

So your title could be like

 <title> <![CDATA[ here comes my special title with "/<>  ]]> </title>

answered Apr 14, 2014 at 17:46

wumpz

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