{"author_name":"finalvent","blog_url":"https://finalvent.hatenadiary.org/","image_url":null,"categories":[],"type":"rich","title":"History of the \"regular expression\".","description":"Regular expressions were created by an American mathematician named Stephen Kleene (often the \"*\" character is referred to as the \"Kleene star\"), who was involved in a lot of the early development of theoretical computer science. While developing regular expressions, he referred to them as \"the alge\u2026","height":"190","author_url":"https://blog.hatena.ne.jp/finalvent/","provider_name":"Hatena Blog","version":"1.0","blog_title":"finalvent\u306e\u65e5\u8a18","url":"https://finalvent.hatenadiary.org/entry/20050131/1107146757","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffinalvent.hatenadiary.org%2Fentry%2F20050131%2F1107146757\" title=\"History of the &quot;regular expression&quot;. - finalvent\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2005-01-31 13:45:57","provider_url":"https://hatena.blog","width":"100%"}