Emacs lisp provides a similar tool (with better syntax IMO): https://www.gnu.org/software/emacs/manual/html_node/elisp/Rx-Notation.html https://www.gnu.org/soft

Emacs lisp provides a similar tool (with better syntax IMO): https://www.gnu.org/software/emacs/manual/html_node/elisp/Rx-Notation.html https://www.gnu.org/software/emacs/manual/html_node/elisp/Rx...