Get the value field from a escape-sequence-octal.
(escape-sequence-octal->value x) → value
This is an ordinary field accessor created by fty::defprod.
Function:
(defun escape-sequence-octal->value$inline (x) (declare (xargs :guard (escape-sequence-p x))) (declare (xargs :guard (equal (escape-sequence-kind x) :octal))) (let ((__function__ 'escape-sequence-octal->value)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and (equal (escape-sequence-kind x) :octal) x))) (acl2::ubyte8-fix (std::da-nth 0 (cdr x)))) :exec (std::da-nth 0 (cdr x)))))
Theorem:
(defthm ubyte8p-of-escape-sequence-octal->value (b* ((value (escape-sequence-octal->value$inline x))) (acl2::ubyte8p value)) :rule-classes :rewrite)
Theorem:
(defthm escape-sequence-octal->value$inline-of-escape-sequence-fix-x (equal (escape-sequence-octal->value$inline (escape-sequence-fix x)) (escape-sequence-octal->value$inline x)))
Theorem:
(defthm escape-sequence-octal->value$inline-escape-sequence-equiv-congruence-on-x (implies (escape-sequence-equiv x x-equiv) (equal (escape-sequence-octal->value$inline x) (escape-sequence-octal->value$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm escape-sequence-octal->value-when-wrong-kind (implies (not (equal (escape-sequence-kind x) :octal)) (equal (escape-sequence-octal->value x) (acl2::ubyte8-fix nil))))