static String _sjoinHelp = "${sjoin;<separator>;<list>...}";
public String _sjoin(String args[]) throws Exception {
verifyCommand(args, _sjoinHelp, null, 2, Integer.MAX_VALUE);
List<String> result = new ArrayList<String>();
for (int i = 2; i < args.length; i++) {
Processor.split(args[i], result);
}
return Processor.join(args[1], result);
}