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caret-identifier.rkt (197B)

      1 #lang racket/base
      2 (provide ^)
      3 
      4 (require (for-syntax racket/base))
      5 
      6 (define-syntax ^
      7   (λ (stx)
      8     (raise-syntax-error
      9      '^
     10      "The ^ identifier can only be used in some contexts"
     11      stx)))