Modifying constructor for regex-start structures.
(change-regex-start x )
This is an often useful alternative to make-regex-start.
We construct a new regex-start structure that is a copy of
This is an ordinary
Macro:
(defmacro change-regex-start (x &rest args) (std::change-aggregate 'regex-start x args 'nil 'change-regex-start 'nil))