If the negated rule is the last that actually matches, then the result list will be empty, but otherwise not:

match(['ab'], ['a*', '!ab'])    //  --> []
match(['ab'], ['!ab', 'a*'])    //  --> ['ab']
match(['ab'], ['x', '!ab', 'a*'])    //  --> ['ab']

Because filtering is essentially a sets operation, one may expect that internal ordering of a set operand does not matter, but it does.

Not a big issue, but perhaps the readme should say something about this?