Using Regular Expressions in PeopleCode

Where are the PeopleCode Regular Expressions? They don't exist. Fortunately, since PeopleCode supports Java, we can "borrow" them for use in our PeopleCode. Here is an example similar to the BSF example I posted earlier:

Function get_site_name() Returns string
   Local JavaObject &patternClass = GetJavaClass("java.util.regex.Pattern");
   Local JavaObject &pattern = &patternClass.compile("/??(\w+?)(?:_\d+?)?/.+$");
   Local JavaObject &jstring = CreateJavaObject("java.lang.String", %Request.PathInfo);
   Local JavaObject &matches = &pattern.matcher(&jstring.subSequence(0, &jstring.length()));

   If (&matches.matches()) Then
      Return &matches.group(1);
   Else
      Return "";
   End-If;
End-Function;