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