it.rkt (254B)
1 #lang racket/base 2 3 (provide it) 4 (require racket/stxparam 5 (for-syntax racket/base)) 6 7 (define-syntax-parameter it 8 (λ (stx) 9 (raise-syntax-error 10 'it 11 "Use of the \"it\" identifier is only allowed within anaphoric macros." 12 stx)))