{"height":"190","blog_url":"https://mametter.hatenablog.com/","version":"1.0","author_name":"ku-ma-me","url":"https://mametter.hatenablog.com/entry/20090227/p1","type":"rich","provider_url":"https://hatena.blog","title":" snip \u95a2\u6570","description":"grep \u306e -C \u30aa\u30d7\u30b7\u30e7\u30f3\u307f\u305f\u3044\u306a\u306e\u3063\u3066\u3001\u610f\u5916\u306b\u5b9f\u88c5\u304c\u96e3\u3057\u3044\u306a\u3068\u601d\u3044\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u8003\u3048\u305f\u554f\u984c\u3002 \u30ea\u30b9\u30c8\u306e\u4e2d\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u8981\u7d20\u306e\u524d\u5f8c n \u500b\u4ee5\u5916\u3092\u7701\u7565\u3059\u308b\u95a2\u6570\u3092\u66f8\u304d\u306a\u3055\u3044\u3002\u4f8b\u3048\u3070\u3001 A B C D E F G H I\u306e\u30ea\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u3001E \u3060\u3051\u304c\u6761\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3001n = 2 \u3067\u3042\u308c\u3070 ..2.. C D E F G ..2..\u3092\u51fa\u529b\u3059\u308b\u611f\u3058\u3002\u7d30\u304b\u3044\u4ed5\u69d8\u306f\u52dd\u624b\u306b\u6c7a\u3081\u3066\u304f\u3060\u3055\u3044\u3002 Ruby 1.9 \u306e\u65b0\u6a5f\u80fd\u3092\u3075\u3093\u3060\u3093\u306b\u4f7f\u3063\u305f\u5bcc\u8c6a\u7684\u306a\u89e3\u7b54\u3002 def snip(a, n) a.dup.tap do |a| t = (0...a.size).to_a & a.map.with_index {|x, i| \u2026","blog_title":"\u307e\u3081\u3081\u3082","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmametter.hatenablog.com%2Fentry%2F20090227%2Fp1\" title=\" snip \u95a2\u6570 - \u307e\u3081\u3081\u3082\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Ruby"],"image_url":null,"author_url":"https://blog.hatena.ne.jp/ku-ma-me/","provider_name":"Hatena Blog","width":"100%","published":"2009-02-27 00:00:00"}