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

Can‘t tell you how often I have to use StartsWith/Contains in some interface when connecting to applications together because of the missing ability to extract proper unique/primary keys for objects from any of the systems.

So please don‘t, I need these buggy hacks ;)