Make the test code a but smarter and less verbose

Is your feature request related to a problem? Please describe.
There is no support for wildcards like this: "tes[tqs]" or "test[1-5]"

Describe the solution you'd like
I would really appreciate support of wildcards with square brackets.
I already tried to add custom rules with "[" -> "[" and "]" -> "]" but even if brackets appear in final regex - character range doesn't work, becaus