{"url":"https://kj-ki.hatenablog.com/entry/20100108/p1","title":"\u6587\u5b57\u5217\u304c\u7a7a\u884c\u304b\u8abf\u3079\u308b","published":"2010-01-08 00:00:00","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkj-ki.hatenablog.com%2Fentry%2F20100108%2Fp1\" title=\"\u6587\u5b57\u5217\u304c\u7a7a\u884c\u304b\u8abf\u3079\u308b - kj-ki\u2019s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"kj-ki\u2019s blog","author_url":"https://blog.hatena.ne.jp/kj-ki/","provider_name":"Hatena Blog","image_url":null,"type":"rich","width":"100%","provider_url":"https://hatena.blog","blog_url":"https://kj-ki.hatenablog.com/","categories":["Scheme"],"height":"190","author_name":"kj-ki","description":"\u6587\u5b57\u5217\u304c\u7a7a\u884c\u304b\u8abf\u3079\u308b \u7a7a\u884c\u306e\u610f\u5473\u306b\u3088\u308a\u3044\u304f\u3064\u304b\u306e\u65b9\u6cd5\u304c\u5b58\u5728\u3057\u307e\u3059\uff0e\u3053\u3053\u3067\u306f3\u7a2e\u985e\u306e\u7a7a\u884c\u306b\u304a\u3044\u3066\u8abf\u3079\u308b\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\uff0e \u7a7a\u767d\u6587\u5b57\u304c\u5165\u3063\u3066\u3044\u3066\u3082\u7a7a\u884c\u3068\u3057\u3066\u6271\u3046\u5834\u5408 string-trim-both\u3068string-null?\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\uff0estring-trim-both\u3067\u306fchar/char-set/pred\u3092\u6307\u5b9a\u3059\u308b\u3068\u524a\u9664\u3059\u308b\u6587\u5b57\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff0e (string-null? s) (string-trim-both s &optional char/char-set/pred start end) \u5b9f\u969b\u306e\u4f8b\uff0e (use srfi-13) (string-null? (string-t\u2026"}