alias colortext {
  var %pos = 1, %color = 04, %result = $chr(3)
  while (%pos <= $len($1-)) {
    %result = %result $+ %color $+ $mid($1-,%pos,1) $+ $chr(3)
    inc %pos
    %color = $nextcolor(%color)
  }
  if ($isid) return %result
  else say %result
}

alias -l nextcolor {
  if ($$1 == 04) return 07
  elseif ($$1 == 07) return 08
  elseif ($$1 == 08) return 09
  elseif ($$1 == 09) return 11
  elseif ($$1 == 11) return 12
  elseif ($$1 == 12) return 02
  elseif ($$1 == 02) return 06
  elseif ($$1 == 06) return 13
  elseif ($$1 == 13) return 04
}
alias rainbow {
  var %pos = 1, %color = 04, %result = $chr(3)
  while (%pos <= $len($1-)) {
    %result = %result $+ %color $+ $mid($1-,%pos,1) $+ $chr(3)
    inc %pos
    %color = $nextcolor(%color)
  }
  if ($isid) return %result
  else say %result
}

alias -l nextcolor {
  if ($$1 == 04) return 07
  elseif ($$1 == 07) return 08
  elseif ($$1 == 08) return 09
  elseif ($$1 == 09) return 11
  elseif ($$1 == 11) return 12
  elseif ($$1 == 12) return 02
  elseif ($$1 == 02) return 06
  elseif ($$1 == 06) return 13
  elseif ($$1 == 13) return 04
}