Emacs has had an Emacs Lisp version of this for a long time. It's implemented as a macro so it can build the string regexp at compile time. https://www.gnu.or

Emacs has had an Emacs Lisp version of this for a long time. It's implemented as a macro so it can build the string regexp at compile time. https://www.gnu.org/software/emacs/manual/html_node/elisp/Rx-Notation.html https://www.gnu.org/software/emacs/manual/html_node/elisp/Rx...