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Regex-repeat

Make-regex-repeat

Basic constructor macro for regex-repeat structures.

Syntax

(make-regex-repeat [:pat <pat>] 
                   [:min <min>] 
                   [:max <max>])

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

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

Definition

This is an ordinary make- macro introduced by defprod.

Macro: make-regex-repeat

(defmacro make-regex-repeat (&rest args)
  (std::make-aggregate 'regex-repeat
                       args '((:pat) (:min) (:max))
                       'make-regex-repeat
                       nil))

Function: regex-repeat

(defun regex-repeat (pat min max)
  (declare (xargs :guard (and (regex-p pat)
                              (natp min)
                              (maybe-natp max))))
  (declare (xargs :guard t))
  (let ((__function__ 'regex-repeat))
    (declare (ignorable __function__))
    (b* ((pat (mbe :logic (regex-fix pat) :exec pat))
         (min (mbe :logic (nfix min) :exec min))
         (max (mbe :logic (maybe-natp-fix max)
                   :exec max)))
      (cons :repeat (list pat min max)))))