{"image_url":null,"url":"https://blog.emattsan.org/entry/20070412/1176349750","published":"2007-04-12 12:49:10","description":"\u663c\u4f11\u307f\u306e\u6642\u9593\u3092\u4f7f\u3063\u3066\u4e2d\u7f6e\u8868\u8a18\u306e\u30d1\u30fc\u30b5\u3092\u8003\u3048\u3066\u307f\u308b\u3002 \u307e\u3060\u3044\u308d\u3044\u308d\u308f\u304b\u3063\u3066\u307e\u305b\u3093\u3002\u7d50\u69cb\u5fc5\u6b7b\u3067\u3059(\u82e6\u7b11)\u3002 expression :: Parser [Elem] expression = do { many space; t <- term; ts <- many $ try terms; many space; return $ t ++ (concat ts) } where terms = do { many space; op <- (plus <|> minus); many space; t <- term; return (t ++ [op]) } term = do { f <-\u2026","type":"rich","blog_url":"https://blog.emattsan.org/","author_url":"https://blog.hatena.ne.jp/E_Mattsan/","categories":["Haskell"],"provider_url":"https://hatena.blog","title":"\u8a08\u7b97\u6a5f\u3001\u306e\u30d1\u30fc\u30b5\u3001\u305d\u306e2","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.emattsan.org%2Fentry%2F20070412%2F1176349750\" title=\"\u8a08\u7b97\u6a5f\u3001\u306e\u30d1\u30fc\u30b5\u3001\u305d\u306e2 - \u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u7684\u611b\u60c5\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","height":"190","width":"100%","author_name":"E_Mattsan","provider_name":"Hatena Blog","blog_title":"\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u7684\u611b\u60c5"}