gistfile1.txt

  validator( $params, $rules, @additional_args? )
    Where:

    $params is a hash reference of parameters to be validated.

    $rules is one of:

    *   the name of a rule sub if you are using "rules_class"

    *   the name of a rule file if you are using "rules_dir"

    *   a hash reference of rules

    *   a code reference that will return a hashref of rules

    Any optional @additional_args are passed as arguments to code
    references/subs.