/region/REGION
/category/CATEGORY
/region/REGION/....
/category/CATEGORY/...

##</code><code>##

sub load_region : Chained('/') : PathPart('region') : CaptureArgs(1) {
        ...
}

sub view_region : Chained('load_region') : PathPart('') : Args(0) {
        ...
}

sub load_category : Chained('/') : PathPart('category') : CaptureArgs(1) {
        ...
}

sub view_category : Chained('load_category') : PathPart('') : Args(0) {
        ...
}

##</code><code>##

sub load_region : Chained('/') : PathPart('') : CaptureArgs(1) {
...
}

sub view_region : Chained('load_region') : PathPart('') : Args(0) {
...
}
sub load_region : Chained('/') : PathPart('') : CaptureArgs(1) {
...
}

sub view_region : Chained('load_region') : PathPart('') : Args(0) {
...
}