Grammar idea

gistfile1.txt

#`««This is my idea for matching a series of lines that could
be a mix of <doorA> and <doorB>, where keeping the order of
lines (more generally, matched rules) is important. I think
I've got the grammar side down, but what should go in TOP's
method in the actions is what I'm stuck on now.

Any ideas?
»»
grammar Doc::Grammar {
    regex TOP {
        (<doorA>||<doorB>)+
    }
    regex doorA {
        ^^ <alpha>+ $$
    }
    regex doorB {
        ^^ <digit>+ $$
    }
}

class Doc::Actions {
    method doorA {
        make ~$/;
    }
    method doorB {
        make ~$/;
    }
    method TOP {
        # not sure what should be here.
    }
}