Xml regex help - can't use xml parser

Question

Hi,
I receive xmls from a legacy system and use JAXB to parse these xml's into java objects.
The xml looks roughly like this:
<root-Tag>
   <general-Info-Tag-1>blah</<general-Info-Tag-1>
   <general-Info-Tag-2>blah</<general-Info-Tag-2>
   <general-Info-Tag-3>blah</<general-Info-Tag-3>
   <entry-Tag>
      <entry-info-Tag-1>info</entry-info-Tag-1>
      <entry-info-Tag-2>info</entry-info-Tag-2>
       etc...
   </entry-Tag>
   <entry-Tag>
      <entry-info-Tag-1>info</entry-info-Tag-1>
      <entry-info-Tag-2>info</entry-info-Tag-2>
       etc...
   </entry-Tag>
</root-Tag>The xml contains a root tag.
The root element contains some general info tags and entry tags.
The entry elements contain some entry relevant info inside nested tags.
It's important to note that this the xml is not nested anymore than the entry-info tags.
My Problem:
The info in the entry-info-tags sometimes contains illegal chars like <,>,& and is not wrapped
properly by a CDATA section.
So I need to find these elements and wrap them with <![CDATA[info]]> before using JAXB.
How can I achieve this using Pattern/Matcher? I've been unsuccessful so far...
Edited by: Samuelz on Jul 1, 2010 1:58 AM

Answer 1

Heres what i've got so far:
A helpful function to print out matches for regex on an input string:
private static void printMathces(final String regex, final String input) {
     Pattern p = Pattern.compile(regex, Pattern.DOTALL);
     Matcher m = p.matcher(input);
     while (m.find()){
          System.out.println("found:");
          for (int i = 0; i < m.groupCount(); i++)
               System.out.println(i + ":" + m.group(i));
}My input string for testing:
String s =
"<entries>\n"+
     "<entry>\n" +
          "<TagName>sam&max</TagName>\n" +
     "</entry>\n" +
     "<entry>\n" +
          "<TagName><![CDATA[sam&max]]></TagName>\n" +
     "</entry>\n" +
"</entries>\n";regex to get contents of TagName:
printMatches("<(TagName)>((.*?))</\\1>+", s);
found:
0:<TagName>sam&max</TagName>
1:TagName
2:sam&max
found:
0:<TagName><![CDATA[sam&max]]></TagName>
1:TagName
2:<![CDATA[sam&max]]>regex to get content of TagName when its wrapped by CDATA
printMathces("<(TagName)><!\\[CDATA\\[((.*?))\\]\\]></\\1>", s);
found:
0:<TagName><![CDATA[sam&max]]></TagName>
1:TagName
2:sam&maxI'm trying to build a regex that will find the contents of TagName without knowing if its already wrapped by CDATA and then replace these matches by something like <$1><![CDATA[$2]]</$1>
How do I "combine" these 2 regular expressions?