setThread example

          $parts = explode('.', $max);
          $n = Number::alphadecimalToInt($parts[0]);
          $prefix = '';
        }
        else {
          // This is a comment with a parent comment, so increase the part of           // the thread value at the proper depth.
          // Get the parent comment:           $parent = $this->getParentComment();
          // Strip the "/" from the end of the parent thread.           $parent->setThread((string) rtrim((string) $parent->getThread(), '/'));
          $prefix = $parent->getThread() . '.';
          // Get the max value in *this* thread.           $max = $storage->getMaxThreadPerThread($this);

          if ($max == '') {
            // First child of this parent. As the other two cases do an             // increment of the thread number before creating the thread             // string set this to -1 so it requires an increment too.             $n = -1;
          }
          else {