as SunnyD said, who said to u thats dont need a closing bracket?

look at this example

in this first example i will put a while event

alias fd {
  var %x = 1
  while (%x <= $len($1-)) {
    echo -a $left($1,%x)
    inc %x
  }

  alias hhs {
    var %x = 1
    while (%x <= $1) {
      echo -a %x
      inc %x
    }
  }

if we ''think'' in the same way as u think, when we type, /fd test, it will create a loop, then when we type /hhs 10, it will not work, so when we close the bracket, its work fine...