8 lines
202 B
Racket
8 lines
202 B
Racket
(#rx"before underscore"
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([not-a-non-term Z_1])
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(term not-a-non-term #:lang syn-err-lang))
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(#rx"before underscore"
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([not-a-non-term AA_1])
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(term (Q_1 Q_2 (Q_3 not-a-non-term)) #:lang syn-err-lang))
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