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Keywords

Contextual-keywordp

Recognize contextual Java keywords.

Signature
(contextual-keywordp x) → yes/no
Returns: yes/no — Type (booleanp yes/no).

A contextual Java keyword is a list of Java Unicode characters that consist of the (ASCII) codes of some element in *contextual-keywords*.

Definitions and Theorems

Function: contextual-keywordp

(defun contextual-keywordp (x)
  (declare (xargs :guard t))
  (and (ascii-listp x)
       (member-equal (ascii=>string x)
                     *contextual-keywords*)
       t))

Theorem: booleanp-of-contextual-keywordp

(defthm booleanp-of-contextual-keywordp
  (b* ((yes/no (contextual-keywordp x)))
    (booleanp yes/no))
  :rule-classes :rewrite)