There's an rx syntax for regexes in emacs [0] that, as far as I know derives from the SRE expression syntax [1] of Olin Shivers. In Lisp, CL-PPCRE [2] manages t

There's an rx syntax for regexes in emacs [0] that, as far as I know derives from the SRE expression syntax [1] of Olin Shivers. In Lisp, CL-PPCRE [2] manages to be a syntax for PERL compliant regexes that is ever more efficient. [0] https://www.gnu.org/software/emacs/manual/html_node/elisp/Rx-Notation.html https://www.gnu.org/software/emacs/manual/html_node/elisp/Rx... [1] https://scsh.net/docu/post/sre.html https://scsh.net/docu/post/sre.html [2] https://edicl.github.io/cl-ppcre/ https://edicl.github.io/cl-ppcre/