The current item

Menus marks, after the decorators, the item the visitor is on — current — and the items that lead to it — currentAncestor.

An item is current when:

• it has a route, the visitor's route is the same, and each of its parameters is among the visitor's with the same value as a text — the visitor may have more parameters; or
• it has an address on the site, starting with a single /, whose path is the visitor's path as a browser asks for it — the segments . and .. resolved, escaped or not, a letter outside ASCII percent-encoded, as phil/url reads both —; the query is not compared.

An address on another site is never current. Twig reads the route, its parameters, the path and the language from the request being handled.