region

var input = message.getContent().substring(6);
var patt = (/^EU$|^NA$|^SA$|^OC$|^AS$/i);
var pos = patt.exec(input);
if(pos != null){
var region = pos.toString().toUpperCase();
var name = user.getNickname();
if(name == null || name === "null") {
  name = user.getName();
}
if(!/^\[/i.exec(name)){
var newNickname = "["+ region + "]" + " " + name;
} else {
name = user.getNickname().substring(5);
var newNickname = "["+region+"]" + " " + name;
}
if(newNickname.length() > 32) {
  newNickname = newNickname.substring(0, 33);
}
manager.nickname(user, newNickname);
channel.message("You region has been updated.");
}
else{
channel.message("Incorrect input " +"'"+input+"'");}