Created
January 14, 2015 18:34
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scheme tinkering
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| (define (f yield) | |
| (yield 1) | |
| (yield 2) | |
| (yield 3)) | |
| (define gen | |
| (letrec ((pause '()) | |
| (resume '()) | |
| (yield (lambda (x) | |
| (call/cc (lambda (k) | |
| (set! resume k) | |
| (pause x)))))) | |
| (lambda () | |
| (call/cc | |
| (lambda (k) | |
| (set! pause k) | |
| (if (null? resume) | |
| (f yield) | |
| (resume '()))))))) |
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