{"categories":["Haskell","scheme"],"url":"https://sirocco.hatenadiary.org/entry/20111025/1319570676","blog_title":"sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2","published":"2011-10-25 04:24:36","author_name":"sirocco","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsirocco.hatenadiary.org%2Fentry%2F20111025%2F1319570676\" title=\"\u300cWrite Yourself a Scheme in 48 Hours\u300d \u3092\u5199\u7d4c\u3057\u3066\u307f\u308b(9) : \u5909\u6570\u306e\u8ffd\u52a0\u3068\u5272\u308a\u5f53\u3066 - sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"\u300cWrite Yourself a Scheme in 48 Hours\u300d \u3092\u5199\u7d4c\u3057\u3066\u307f\u308b(9) : \u5909\u6570\u306e\u8ffd\u52a0\u3068\u5272\u308a\u5f53\u3066","provider_url":"https://hatena.blog","image_url":null,"author_url":"https://blog.hatena.ne.jp/sirocco/","description":"Write Yourself a Scheme in 48 Hours/Adding Variables and Assignment http://jonathan.tang.name/files/scheme_in_48/code/listing8.hs \u307e\u305a\u3001\u8a55\u4fa1\u3092\u3059\u308beval\u95a2\u6570\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3059\u3002 eval :: Env -> LispVal -> IOThrowsError LispVal eval env val@(String _) = return val eval env val@(Number _) = return val eval env val@(Bool _) = \u2026","version":"1.0","height":"190","width":"100%","type":"rich","provider_name":"Hatena Blog","blog_url":"https://sirocco.hatenadiary.org/"}