{"url":"https://tmurata.hatenadiary.org/entry/20100317/1268834538","height":"190","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftmurata.hatenadiary.org%2Fentry%2F20100317%2F1268834538\" title=\"SICP\u554f\u984c4.10 - tmurata\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","categories":["SICP"],"title":"SICP\u554f\u984c4.10","image_url":null,"blog_title":"tmurata\u306e\u65e5\u8a18","provider_url":"https://hatena.blog","published":"2010-03-17 23:02:18","author_url":"https://blog.hatena.ne.jp/tmurata/","blog_url":"https://tmurata.hatenadiary.org/","description":"\u30c7\u30fc\u30bf\u62bd\u8c61\u3092\u4f7f\u3046\u3068\u8a55\u4fa1\u3055\u308c\u308b\u8a00\u8a9e\u306e\u7279\u5b9a\u306e\u69cb\u6587\u3068\u72ec\u7acb\u306aeval\u624b\u7d9a\u304d\u3092\u66f8\u304f\u3053\u3068\u304c\u51fa\u6765\u308b\u3002\u3053\u308c\u3092\u793a\u3059\u305f\u3081\u3001eval\u3068apply\u3092\u5909\u3048\u305a\u306b\u672c\u7bc0\u306e\u624b\u7d9a\u304d\u3092\u4fee\u6b63\u3057\u3001scheme\u306e\u65b0\u3057\u3044\u69cb\u6587\u3092\u8a2d\u8a08\u3057\u3001\u5b9f\u88c5\u305b\u3088\u3002\u3068\u3044\u3046\u554f\u984c\u3002 \u305f\u3081\u3057\u306b\u65b0\u3057\u3044\u69cb\u6587\u3068\u3057\u3066\u524d\u7f6e\u8a18\u6cd5\u3067\u306a\u304f\u5f8c\u7f6e\u8a18\u6cd5\u306b\u3057\u305f\u5834\u5408\u3092\u8003\u3048\u308b\u3002 \u5168\u90e8\u3084\u308b\u306e\u306f\u5927\u5909\u306a\u306e\u3067\u3061\u3087\u3063\u3068\u3060\u3051\u3002 \u307e\u305a tagged-list? \u3092\u5909\u66f4\u3057\u3066 (define (tagged-list? exp tag) (define (tag-exp x) (if (pair? x) (if (null? (cdr x)) (car x) (tag-exp (cdr x))) x)) (if\u2026","provider_name":"Hatena Blog","author_name":"tmurata","version":"1.0"}