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• Parser

Cst2ast-quoted-printable

Given a :nonleaf tree for rulename "single-quoted-printable" or "double-quoted-printable", returns a string-element-char.

Signature

(cst2ast-quoted-printable subtree double-quoted-p) → element

Arguments

subtree — Guard (abnf::treep subtree).

double-quoted-p — Guard (booleanp double-quoted-p).

Returns

element — Type (string-element-resultp element).

Definitions and Theorems

Function: cst2ast-quoted-printable

(defun cst2ast-quoted-printable (subtree double-quoted-p)
 (declare (xargs :guard (and (abnf::treep subtree)
                             (booleanp double-quoted-p))))
 (declare (ignorable double-quoted-p))
 (let ((__function__ 'cst2ast-quoted-printable))
  (declare (ignorable __function__))
  (b* (((unless (and (abnf::treep subtree)
                     (abnf::tree-case subtree :nonleaf)))
        (reserrf "unexpected input to cst2ast-quoted-printable"))
       (fringe (abnf::tree->string subtree))
       ((unless (and (equal (len fringe) 1)
                     (unsigned-byte-p 8 (car fringe))))
        (reserrf "unexpected input to cst2ast-quoted-printable 2")))
    (make-string-element-char :get (code-char (car fringe))))))

Theorem: string-element-resultp-of-cst2ast-quoted-printable

(defthm string-element-resultp-of-cst2ast-quoted-printable
  (b* ((element (cst2ast-quoted-printable subtree double-quoted-p)))
    (string-element-resultp element))
  :rule-classes :rewrite)