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Regex-backref

Make-regex-backref

Basic constructor macro for regex-backref structures.

Syntax

(make-regex-backref [:index <index>])

This is the usual way to construct regex-backref structures. It simply conses together a structure with the specified fields.

This macro generates a new regex-backref structure from scratch. See also change-regex-backref, which can "change" an existing structure, instead.

Definition

This is an ordinary make- macro introduced by defprod.

Macro: make-regex-backref

(defmacro make-regex-backref (&rest args)
  (std::make-aggregate 'regex-backref
                       args '((:index))
                       'make-regex-backref
                       nil))

Function: regex-backref

(defun regex-backref (index)
  (declare (xargs :guard t))
  (let ((__function__ 'regex-backref))
    (declare (ignorable __function__))
    (cons :backref (list index))))