Thanks for the idea. (++) I've updated the original post with my version of your idea.

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

In reply to Re^2: tree command by Skeeve
in thread tree command by Skeeve

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