in reply to Regex negation (or golf)

I'm not sure, but isn't this a kind of weird response string?

I looked into the CPAN documentation and found nothing about this kind of result. Which method do you use? Wouldn't it be a good idea too look into other methods first for one that can cope with these results?


s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
+.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e