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Syntax-abstraction

Abs-double-quote

Abstract a double-quote to a Leo character.

Signature
(abs-double-quote tree) → char
Arguments: tree — Guard (abnf::treep tree).
Returns: char — Type (char-resultp char).

Definitions and Theorems

Function: abs-double-quote

(defun abs-double-quote (tree)
  (declare (xargs :guard (abnf::treep tree)))
  (let ((__function__ 'abs-double-quote))
    (declare (ignorable __function__))
    (b* (((okf &)
          (abnf::check-tree-nonleaf-num-seq
               tree "double-quote" (list 34))))
      (char 34))))

Theorem: char-resultp-of-abs-double-quote

(defthm char-resultp-of-abs-double-quote
  (b* ((char (abs-double-quote tree)))
    (char-resultp char))
  :rule-classes :rewrite)

Theorem: abs-double-quote-of-tree-fix-tree

(defthm abs-double-quote-of-tree-fix-tree
  (equal (abs-double-quote (abnf::tree-fix tree))
         (abs-double-quote tree)))

Theorem: abs-double-quote-tree-equiv-congruence-on-tree

(defthm abs-double-quote-tree-equiv-congruence-on-tree
  (implies (abnf::tree-equiv tree tree-equiv)
           (equal (abs-double-quote tree)
                  (abs-double-quote tree-equiv)))
  :rule-classes :congruence)