{"version":"1.0","title":"Haskell\u3068Parsec\u3067Lisp REPL\u3000\u305d\u306e\uff17\uff08if\u69cb\u6587\uff09","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fzehnpaard.hatenablog.com%2Fentry%2F2018%2F04%2F12%2F085142\" title=\"Haskell\u3068Parsec\u3067Lisp REPL\u3000\u305d\u306e\uff17\uff08if\u69cb\u6587\uff09 - Arantium Maestum\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Haskell"],"published":"2018-04-12 08:51:42","author_url":"https://blog.hatena.ne.jp/zehnpaard/","url":"https://zehnpaard.hatenablog.com/entry/2018/04/12/085142","author_name":"zehnpaard","type":"rich","description":"\u4eca\u56de\u306e\u5909\u66f4 github.com \u6761\u4ef6\u5206\u5c90\u306e\u305f\u3081\u306e\u69cb\u6587\u3092\u8ffd\u52a0\u3002 (if a b c)\u3068\u3044\u3046\u5f0f\u306f\u3001\u307e\u305aa\u3092\u8a55\u4fa1\u3057\u3001\u3082\u3057\u771f\u306a\u3089b\u3092\u3001\u507d\u306a\u3089c\u3092\u8a55\u4fa1\u3057\u3066\u305d\u306e\u7d50\u679c\u304c\u5024\u3068\u306a\u308b\u3002 b\u3068c\u306e\u3069\u3061\u3089\u304b\u3072\u3068\u3064\u3057\u304b\u8a55\u4fa1\u3055\u308c\u306a\u3044\u306e\u304c\u91cd\u8981\u306a\u306e\u3067\u3001\u95a2\u6570\u3067\u306f\u306a\u304f\u69cb\u6587\u3068\u3057\u3066\u5b9a\u7fa9\u3002 \u5b9f\u88c5\u3068\u3057\u3066\u306feval\u306b\u30eb\u30fc\u30eb\u3092\u3072\u3068\u3064\u8ffd\u52a0\u3057\u305f\u3060\u3051\u3002 \u8a55\u4fa1\u5668 eval\u3078\u306e\u5909\u66f4\uff1a eval (List [Atom \"if\", ifForm, thenForm, elseForm]) = case eval ifForm of Bool True -> eval thenForm Bool False -> eval elseForm \u6761\u4ef6\u3092\u8a55\u4fa1\u2026","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","width":"100%","image_url":null,"height":"190","blog_title":"Arantium Maestum","blog_url":"https://zehnpaard.hatenablog.com/"}