{"blog_url":"https://reinyannyan.hatenadiary.org/","published":"2009-09-28 00:00:00","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Freinyannyan.hatenadiary.org%2Fentry%2F20090928%2Fp1\" title=\"if\u306e\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\u3092arc\u98a8\u306b\u3059\u308b\u8a66\u307f - (new Hatena).blog()\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Scheme"],"type":"rich","version":"1.0","height":"190","image_url":null,"author_name":"reinyannyan","provider_name":"Hatena Blog","description":"anaphoric if\u3092\u4f7f\u3063\u3066\u3044\u3066\u6642\u3005\u611f\u3058\u308b\u3093\u3067\u3059\u304c\u3001\u3084\u306f\u308a\u7a7a\u30ea\u30b9\u30c8\u304c\u507d\u3068\u3057\u3066\u6271\u308f\u308c\u306a\u3044 Scheme \u306e\u610f\u5473\u8ad6\u306f\u3001\u5b9f\u7528\u4e0a\u3069\u3046\u3057\u3066\u3082\u4e0d\u4fbf\u306a\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001cdr \u304c\u7a7a\u3067\u306a\u3051\u308c\u3070\u30eb\u30fc\u30d7\u3092\u7d9a\u3051\u308b (if (pair? (cdr l)) (loop (cdr l)) ...)\u3068\u3044\u3046\u30d1\u30bf\u30fc\u30f3\u3092 (aif (cdr l) (loop it) ...)\u3068\u66f8\u3051\u306a\u3044\u3088\u3046\u3067\u306f\u3001aif \u306e\u9b45\u529b\u3082\u534a\u6e1b\u3068\u8a00\u308f\u3056\u308b\u3092\u5f97\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001if \u53ca\u3073\u95a2\u9023\u306e\u69cb\u6587\u3092 arc \u98a8\u306e\u3082\u306e\u306b\u5927\u80c6\u306b\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u3067\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3088\u3046\u3068\u8003\u3048\u307e\u3057\u305f\u3002 \u307e\u305a\u3001\u3069\u306e\u5024\u3092\u507d\u3068\u3059\u308b\u304b\u3092\u6c7a\u3081\u307e\u3059\u3002 (defin\u2026","width":"100%","blog_title":"(new Hatena).blog()","url":"https://reinyannyan.hatenadiary.org/entry/20090928/p1","title":"if\u306e\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\u3092arc\u98a8\u306b\u3059\u308b\u8a66\u307f","author_url":"https://blog.hatena.ne.jp/reinyannyan/"}