The multilingual router example with excluding default locale from URI for Symfony Framework

multilingual-router.yml

home_redirect:
    host:     "%domain%"
    pattern:  /%locale%/
    defaults:
        _controller:  FrameworkBundle:Redirect:urlRedirect
        path:         /
        permanent:    false

home_locale:
    host:     "%domain%"
    pattern:  /{_locale}/
    defaults: { _controller: BWMainBundle:Main:index }

home:
    host:     "%domain%"
    pattern:  /
    defaults: { _controller: BWMainBundle:Main:index, _locale: "%locale%" }