Rather than have an ignore/accept regexp, then have a
list of rules that are checked in order.
Rule types could be: "RegExp rule","Size rule","Date
rule".
All rule types should have fields for whether the
rule should accept or exclude files/dirs that match
the rule. Additional fields would be:
* A regexp rule would have a field for the pattern
* A size rule would have fields for whether it should
check for whether the size is greater or smaller than
xxx bytes.
* A date rule would have a field for newer/older than
a fixed date