{"title":"\u300cWrite Yourself a Scheme in 48 Hours\u300d \u3092\u5199\u7d4c\u3057\u3066\u307f\u308b(5) \uff1a \u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u3068\u4f8b\u5916 ","categories":["Haskell","scheme"],"url":"https://sirocco.hatenadiary.org/entry/20111022/1319317141","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsirocco.hatenadiary.org%2Fentry%2F20111022%2F1319317141\" title=\"\u300cWrite Yourself a Scheme in 48 Hours\u300d \u3092\u5199\u7d4c\u3057\u3066\u307f\u308b(5) \uff1a \u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u3068\u4f8b\u5916  - 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>","image_url":null,"description":"Write Yourself a Scheme in 48 Hours/Error Checking and Exceptions http://jonathan.tang.name/files/scheme_in_48/code/listing5.hs -- readExpr \u306f (Right) \u30d1\u30fc\u30b9\u306b\u6210\u529f\u3059\u308b\u3068\u30d1\u30fc\u30b9\u3057\u305f\u5024\u3092\u8fd4\u3059\u3002 -- \u5931\u6557\u306e\u3068\u304d\u306f (Parser err) \u306e\u4f8b\u5916\u3092\u6295\u3052\u308b\u3002 readExpr :: String -> ThrowsError LispVal readExpr input = case parse parseExpr \"lisp\" input of Le\u2026","blog_url":"https://sirocco.hatenadiary.org/","width":"100%","provider_url":"https://hatena.blog","height":"190","type":"rich","author_name":"sirocco","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/sirocco/","version":"1.0","blog_title":"sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2","published":"2011-10-22 05:59:01"}