Monitoring::Plugin::Range3pm

    # NB: This is an internal Monitoring::Plugin class.
    # See Monitoring::Plugin itself for public interfaces.
    # Instantiate an empty range object
    $r = Monitoring::Plugin::Range->new;
    # Instantiate by parsing a standard nagios range string
    $r = Monitoring::Plugin::Range->parse_range_string( $range_str );
    # Returns true if the range is defined/non-empty
    $r->is_set;
    # Returns true if $value matches range, false otherwise
    $r->check_range($value);