I'm not sure what the command your using contains (other than the event name), but instead of using tokens, you can just use the substring function. (/scripthelp substring in RC for usage).
If you have other things you use in the command (like: /host #ofEC timeUntilEventWarp&Start eventName), then you can use a combination of tokens and the substring function. You could collect the rest of the event name as follows (assuming its the last parameter):
temp.chat = player.chat; // the /host command
temp.eventName = temp.chat.substring(temp.chat.pos(tokens[index # of the 1st word in event name]));

or something roughly of that nature. By ignoring the optional parameter of [length], it goes until the end of the string.