		Search-engine friendly clone of the ACL2 documentation.

Syntax-abstraction

Abs-line-feed-escape

Abstract a line-feed-escape to a Leo character.

Signature
(abs-line-feed-escape tree) → char
Arguments: tree — Guard (abnf::treep tree).
Returns: char — Type (char-resultp char).

Definitions and Theorems

Function: abs-line-feed-escape

(defun abs-line-feed-escape (tree)
  (declare (xargs :guard (abnf::treep tree)))
  (let ((__function__ 'abs-line-feed-escape))
    (declare (ignorable __function__))
    (b* (((okf tree)
          (abnf::check-tree-nonleaf-1-1 tree "line-feed-escape"))
         ((okf &)
          (abnf::check-tree-schars tree "\\n")))
      (char 10))))

Theorem: char-resultp-of-abs-line-feed-escape

(defthm char-resultp-of-abs-line-feed-escape
  (b* ((char (abs-line-feed-escape tree)))
    (char-resultp char))
  :rule-classes :rewrite)

Theorem: abs-line-feed-escape-of-tree-fix-tree

(defthm abs-line-feed-escape-of-tree-fix-tree
  (equal (abs-line-feed-escape (abnf::tree-fix tree))
         (abs-line-feed-escape tree)))

Theorem: abs-line-feed-escape-tree-equiv-congruence-on-tree

(defthm abs-line-feed-escape-tree-equiv-congruence-on-tree
  (implies (abnf::tree-equiv tree tree-equiv)
           (equal (abs-line-feed-escape tree)
                  (abs-line-feed-escape tree-equiv)))
  :rule-classes :congruence)