filter ‘;’ LIST ‘;’ REGEX | bnd
Description: public String _filter(String args[]) { return filter(args, false); }

- # filter ';' LIST ';' REGEX

      public String _filter(String args[]) {
      	return filter(args, false);
      }

      public String _filterout(String args[]) {
      	return filter(args, true);

      }

      static String	_filterHelp	= "${ % s;<list>;<regex>}";

      String filter(String[] args, boolean include) {
      	verifyCommand(args, String.format(_filterHelp, args[0]), null, 3, 3);

      	Collection<String> list = new ArrayList<String>(Processor.split(args[1]));
      	Pattern pattern = Pattern.compile(args[2]);

      	for (Iterator<String> i = list.iterator(); i.hasNext();) {
      		if (pattern.matcher(i.next()).matches() == include)
      			i.remove();
      	}
      	return Processor.join(list);
      }