What is the regex to make sure that a given string contains at least one character from each of the following categories.
- Lowercase character
- Uppercase character
- Digit
- Symbol
I know the patterns for individual sets namely [a-z], [A-Z], \d and _|[^\w] (I got them correct, didn’t I?).
But how do I combine them to make sure that the string contains all of these in any order?
