{"author_url":"https://blog.hatena.ne.jp/higepon/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhigepon.hatenablog.com%2Fentry%2F20060701%2F1151732802\" title=\"\u95a2\u6570\u578b\u8a00\u8a9e\u306e\u52c9\u5f37\u306bSICP\u3092\u8aad\u3082\u3046 - (57) 4\u7ae0 - \u8d85\u8a00\u8a9e\u7684\u62bd\u8c61 - \u5c0f\u4f11\u6b62 - \u5b57\u53e5\u89e3\u6790\u3092\u66f8\u304f - 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>","url":"https://higepon.hatenablog.com/entry/20060701/1151732802","title":"\u95a2\u6570\u578b\u8a00\u8a9e\u306e\u52c9\u5f37\u306bSICP\u3092\u8aad\u3082\u3046 - (57) 4\u7ae0 - \u8d85\u8a00\u8a9e\u7684\u62bd\u8c61 - \u5c0f\u4f11\u6b62 - \u5b57\u53e5\u89e3\u6790\u3092\u66f8\u304f","categories":["Scheme","SICP"],"description":"\u6301\u3061\u6642\u9593\u306e\u3082\u30461\u6642\u9593\u306f\u5b57\u53e5\u89e3\u6790\u306e\u52c9\u5f37\u306b\u3042\u3066\u308b\u3002 Scheme\u306e\u5165\u529b\u306b\u5bfe\u3057\u3066\u3069\u306e\u3088\u3046\u306a token \u3092\u5b9a\u7fa9\u3059\u308c\u3070\u3088\u3044\u304b\u5206\u304b\u3089\u306a\u3044\u3093\u3060\u3051\u3069\u60f3\u50cf\u3067\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066\u307f\u308b\u3002 token enum { IDENTIFIER, STRING, NUMBER, LEFT_PAREN, RIIGHT_PAREN, QUOTE, }; \u5b57\u53e5\u89e3\u6790 \u307e\u305a\u306f\u3055\u3089\u3063\u3068\u66f8\u3044\u3066\u3001\u5b9f\u884c\u3057\u3066\u307f\u308b\u3002 \u3053\u308c\u3092\u5165\u529b\u3059\u308b\u3068 (define (stream-ref s n) (if (= n 0) (begin (display \"hoge\")(stream-car s)) (begin (display \"zzzz\")(stream-r\u2026","published":"2006-07-01 14:46:42","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","height":"190","width":"100%","blog_title":"higepon blog","version":"1.0","author_name":"higepon","blog_url":"https://higepon.hatenablog.com/","type":"rich","image_url":"http://images-jp.amazon.com/images/P/489471163X.09.MZZZZZZZ.jpg"}