RegExp
Regular Expression
正規表現
で使われる
JavaScript
https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/RegExp
11th 21.2
16th 22.2
2026 draft 22.2
https://tc39.es/ecma262/#sec-regexp-regular-expression-objects
Java
https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/regex/package-summary.html
https://docs.oracle.com/javase/jp/8/docs/api/java/util/regex/Pattern.html
などで利用可能