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Matchresult

Matchresult-p

Recognizer for matchresult structures.

Signature
(matchresult-p x) → *

Definitions and Theorems

Function: matchresult-p

(defun matchresult-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'matchresult-p))
    (declare (ignorable __function__))
    (and (true-listp x)
         (eql (len x) 4)
         (b* ((loc (std::da-nth 0 x))
              (len (std::da-nth 1 x))
              (str (std::da-nth 2 x))
              (backrefs (std::da-nth 3 x)))
           (and (maybe-natp loc)
                (natp len)
                (stringp str)
                (backref-alist-p backrefs))))))

Theorem: consp-when-matchresult-p

(defthm consp-when-matchresult-p
  (implies (matchresult-p x) (consp x))
  :rule-classes :compound-recognizer)