Try to exploit this Rexex match to run XSS if you can

I am making a Regex match that needs to detect executing JavaScript functions or setting variables in a string. It basically detects if a string would run a function or set a variable before it evaluates it.

Here is the current Regex

/(([^+-\=\*\/\%\|\<\>\! ])( +)?\(|=>|[^=!<>]=[^=])/

If you can get a string to execute a function or set a variable without this matching it, please comment with what that string is so I can find volrabilities in it. Test it out in RegExr.com.