Check rules, select rules, match against rules. Its all about the rules.
Select a subsection of rules
Select a subsection of rules by regexp
Instead of outdir/ rule1 rule2 outdir/ 001-rule1 002-rule2
Keep track of the number of our rules. Only used when --number_rules enabled
local: - override_process: 1
If we have select_rules or match_rule only process those rules and skip all others