Strong password regular expression that matches any special char

I need the following check for strong password validation: - At least 7 chars - At least 1 uppercase char (A-Z) - At least 1 number (0-9) - At least one special char I found and tweaked a RegEx and it's like this (sorry, I lost the reference...): ``` ^.*(?=.{7,})(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[@'#.$;%^&+=!""()*,-/:<>?]).*$ ``` It's working in `C#` except for the fact that I need to match any special char, and I really mean ANY. In other words, I need that the "special char" be anything but numbers and lower/uppercase letters. Edit: For the sake of clarity, let's consider that accents are special chars, so `é`, `ñ` and the like should be considered special chars in the context of this question.