{"url":"https://blog.emattsan.org/entry/20130816/1376661186","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.emattsan.org%2Fentry%2F20130816%2F1376661186\" title=\"\u30d1\u30fc\u30b5\u3001\u306a\u3093\u3069\u3067\u3082\u3001\u306a\u3093\u3069\u3067\u3082 - \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>","description":"\u6628\u65e5\u306e\u30a8\u30f3\u30c8\u30ea\u306e\u7d9a\u304d\u3002\u30b5\u30d6\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\u3002 calc.tt grammar Arithmetic rule additive multitive r:( op:[+-] multitive )* <Additive> end rule multitive primary r:( op:[*/%] primary )* <Multitive> end rule primary '(' additive ')' <Parenthesized> / number end rule number '-'? [1-9] [0-9]* <Number> end endcalc.rb require 't\u2026","width":"100%","title":"\u30d1\u30fc\u30b5\u3001\u306a\u3093\u3069\u3067\u3082\u3001\u306a\u3093\u3069\u3067\u3082","height":"190","type":"rich","provider_name":"Hatena Blog","published":"2013-08-16 22:53:06","author_name":"E_Mattsan","version":"1.0","categories":["\u3081\u3082","Ruby","PEG"],"provider_url":"https://hatena.blog","blog_title":"\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u7684\u611b\u60c5","blog_url":"https://blog.emattsan.org/","author_url":"https://blog.hatena.ne.jp/E_Mattsan/"}