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Keywords

Jkeywordp

Recognize (non-restricted) Java keywords.

Signature
(jkeywordp x) → yes/no
Returns: yes/no — Type (booleanp yes/no).

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

The j in front of jkeywordp avoids a conflict with the built-in keywordp.

Definitions and Theorems

Function: jkeywordp

(defun jkeywordp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'jkeywordp))
    (declare (ignorable __function__))
    (and (ascii-listp x)
         (member-equal (ascii=>string x)
                       *jkeywords*)
         t)))

Theorem: booleanp-of-jkeywordp

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