You may find semgrep handy for that, although I don't offhand know how to express "any use of regex" in its language https://github.com/returntocorp/semgrep ht

You may find semgrep handy for that, although I don't offhand know how to express "any use of regex" in its language https://github.com/returntocorp/semgrep https://github.com/returntocorp/semgrep