higepon https://blog.hatena.ne.jp/higepon/ higepon blog https://higepon.hatenablog.com/ mosh scheme 以下のようなマクロを定義して do のバグを修正した。(マクロの元ネタはR6RS) (define-macro (do . sexp) (match sexp [(((var init step ...) ...) (test expr ...) command ...) `(letrec ((loop (lambda (,@var) (if ,test (begin #f ; avoid empty begin ,@expr) (begin ,@command (loop ,@(map (lambda (v s) `(do "step" ,v ,@s)) var step))))))) (l… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhigepon.hatenablog.com%2Fentry%2F20080526%2F1211809257" title=" do のバグの修正完了 - higepon blog" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2008-05-26 22:40:57 rich https://higepon.hatenablog.com/entry/20080526/1211809257 1.0 100%