GitLab

(rx-constituents): Add/extend many forms.
(rx-check): Check form is a list.
(bracket): Defvar.
(rx-check-any, rx-any, rx-check-not): Modify.
(rx-not): Simplify.
(rx-trans-forms, rx-=, rx->=, rx-**, rx-not-char, rx-not-syntax): New.
(rx-kleene): Use rx-trans-forms.
(rx-quote-for-set): Delete.
(rx): Allow multiple args.