Conditional routes?

The CMS Questions
1

I have a simple multi-language site with Chinese as one of the languages. I want to redirect all locales, e.g. /zh-cn, /zh-tw, /zh-hk to /zh. I’ve got a working route for that, but it “absorbs” all requests:

c::set('routes', array(
    array(
        'method' => 'GET',
        'pattern' => '(:any)/(:all)',
        'action' => function ($lang, $path) {
            if (preg_match('/zh\-[a-z]{2}/', $lang)) {
                go('zh' . DS . $path);
            }
        }
    ),
    ...
);

When I go to /zh-cn/foobar, I correctly get redirected to /zh/home. However, the new request matches the route too, but does not match the condition, and a blank page is returned. Also, all routes below this one are ignored. Is there a way to make Kirby behave a little bit like Apache or Nginx and process routes in a waterfall manner until it actually finds one that tells it what page to serve?

It would be ideal if, for example, I could return false in the first route and make Kirby process all other routes until it finds one that doesn’t return false.

Edit: I know I can switch the route to (zh\-[a-z]{2})/(:all) and have it working. I am using this example only to simplify my question. In reality, I have more complex logic in the route that can’t be expressed through regex, so modifying the pattern is not an option for me.

2

Instead of (:any), usu a regex pattern that starts with zh-

3

Yep, I was just about to edit my question. I know I can switch the route to (zh\-[a-z]{2})/(:all) and have it working. But I used that example only to simplify my question. In reality, I have more complex logic in the route that can’t be expressed through regex, so modifying the pattern is not an option for me.

4

Well, you can of course go through different conditions, and if none is met, return the actual page.

You can also try and check if a route filter might work for your use case.

Otherwise, maybe you want to explain in more details what you want to achieve.