#include <Array.au3>
$sText = '/11111/2 2 2 2/33333/4/5' & @CRLF & _
'/AAAA/BBBBB/C C C C/DDD/EEE' & @CRLF & _
'/FFF/GGGG/' & @CRLF & _
'/ZZZZZ/MMMM/RRRR' & @CRLF & _
'/XXXXX/PPPPPP/55 5/LLLLL/3333/WWWWW/QQQQQ'
$asText = StringRegExp($sText, '((?:/[^\v/]+){3}).*', 3)
_ArrayDisplay($asText)