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• Vl-ps->chars

Vl-printedlist->chars

Convert a printed list (in reverse order) into characters (in proper order).

Signature

(vl-printedlist->chars x acc) → chars

Arguments

x — Guard (vl-printedlist-p x).

Returns

chars — Type (character-listp chars), given (character-listp acc).

Definitions and Theorems

Function: vl-printedlist->chars

(defun vl-printedlist->chars (x acc)
  (declare (xargs :guard (vl-printedlist-p x)))
  (let ((__function__ 'vl-printedlist->chars))
    (declare (ignorable __function__))
    (b* (((when (atom x)) acc)
         (x1 (vl-printed-fix (car x)))
         ((when (characterp x1))
          (vl-printedlist->chars (cdr x)
                                 (cons x1 acc))))
      (vl-printedlist->chars (cdr x)
                             (str::append-chars x1 acc)))))

Theorem: character-listp-of-vl-printedlist->chars

(defthm character-listp-of-vl-printedlist->chars
  (implies (character-listp acc)
           (b* ((chars (vl-printedlist->chars x acc)))
             (character-listp chars)))
  :rule-classes :rewrite)