ypooo https://blog.hatena.ne.jp/ypooo/ ypooo’s diary https://ypooo.hatenablog.com/ LISP 関数型 6. fetch-html 関数 ypooo.hatenablog.com (defun fetch-html (url) (handler-case (multiple-value-bind (body status) (drakma:http-request url :connection-timeout 10 :force-binary t) (if (= status 200) (babel:octets-to-string body :encoding :utf-8) (progn (warn "HTTP error: ~A (Status: ~A)" url status) nil… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fypooo.hatenablog.com%2Fentry%2F2026%2F04%2F25%2F054154" title="PythonプログラマーのためのCommon Lispコード解説 06 - ypooo’s diary" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/y/ypooo/20260425/20260425055449.jpg Hatena Blog https://hatena.blog 2026-04-25 05:41:54 rich https://ypooo.hatenablog.com/entry/2026/04/25/054154 1.0 100%