8 lines
235 B
Scheme
8 lines
235 B
Scheme
(define (string-top s)
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(if (string=? s "") s (substring s 0 (- (string-length s) 1))))
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(define (string-tail s)
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(if (string=? s "") s (substring s 1 (string-length s))))
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(define (string-top-tail s)
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(string-tail (string-top s)))
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