{"url":"https://shuzo-kino.hateblo.jp/entry/2014/12/02/234647","description":"\u6b63\u898f\u8868\u73fe\u3067\u5358\u8a9e\u5883\u754c\u306b\u30de\u30c3\u30c1\u3055\u305b\u308b\u5834\u5408\u3001 \u4ee5\u524d\u6271\u3063\u305f\\b\u3084$\u4ee5\u5916\u306b\u3082\u5225\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u6570\u5024\u306e\u6587\u5b57\u5217\u3092\u4e09\u6841\u533a\u5207\u308a\u3059\u308b\u6b63\u898f\u8868\u73fe\u3067\u8003\u3048\u308b\u3068 \"123456\".gsub(/(?<=\\d)(?=(\\d\\d\\d)+\\b)/, \",\") => \"123,456\" \u306f \"123456\".gsub(/(?<=\\d)(?=(\\d\\d\\d)+(?!\\d))/, \",\") => \"123,456\" \u3068\u66f8\u304d\u63db\u3048\u308b\u4e8b\u304c\u3067\u304d\u307e\u3059\u3002 \u3053\u306e(?!pat) \u306f\u5426\u5b9a\u5148\u8aad\u307f\u3068\u547c\u3070\u308c\u308b\u3082\u306e\u3067\u3001 \u305d\u306e\u540d\u306e\u901a\u308a\u305d\u306e\u6761\u4ef6\u306b\u4e00\u81f4\u3059\u308b\u3082\u306e\u3092\u30de\u30c3\u30c1\u3055\u305b\u307e\u305b\u3093\u3002 \u53c2\u8003\u3082\u3068 \u6b63\u898f\u8868\u73fe","image_url":null,"title":"\u5358\u8a9e\u5883\u754c\u306b\u30de\u30c3\u30c1\u3055\u305b\u308b\u5834\u5408\u3001(?!\\w)\u3068\u66f8\u304f\u65b9\u6cd5\u3082\u3042\u308b\u3002","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/shuzo_kino/","height":"190","author_name":"shuzo_kino","version":"1.0","width":"100%","published":"2014-12-02 23:46:47","provider_url":"https://hatena.blog","blog_url":"https://shuzo-kino.hateblo.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshuzo-kino.hateblo.jp%2Fentry%2F2014%2F12%2F02%2F234647\" title=\"\u5358\u8a9e\u5883\u754c\u306b\u30de\u30c3\u30c1\u3055\u305b\u308b\u5834\u5408\u3001(?!\\w)\u3068\u66f8\u304f\u65b9\u6cd5\u3082\u3042\u308b\u3002 - Bye Bye Moore\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","blog_title":"Bye Bye Moore","categories":["ruby","regex"]}