Override default of ".{_format}" in routes using FOSRestBundle and Symfony2 - symfony

Question

I am wondering if it is possible to define routes in FOSRestBundle methods that specify the format with something other than a "dot" preceding them.
For example, suppose I'd like the following to work:
http://somesite.com/api/user/20 (renders in the default/fallback format)
http://somesite.com/api/user/20/json (renders in JSON)
http://somesite.com/api/user/20/xml (renders in XML)
If I attempt to define a route like:
/**
* #Get("/user/{id}/{_format}
*/
public function getUserAction($id)
{
// do stuff
}
I get this:
Route pattern "/api/users/{maximum}/{_format}.{_format}" cannot reference variable name "_format" more than once.
That made me realize that it -- and by it, I assume we are talking FOSRestBundle and not Symfony2 by default -- is automatically adding the ".{_format}" to the end of whatever route I define. I was surprised!
So right now, in my earlier example, it works as follows:
http://somesite.com/api/user/20 (renders in the default/fallback format)
http://somesite.com/api/user/20.json (renders in JSON)
http://somesite.com/api/user/20.xml (renders in XML)
A small difference to be sure, but, I am trying to port over a legacy app that uses this syntax. Is what I am trying to do possible? If so, how can I disable that automatic addition of ".{_format}" to each route?
Thanks!

Answer 1

Over a year has passed and FOSRestBundle now supports the feature I was looking for above.
You can control this behavior via the following configuration:
fos_rest:
routing_loader:
default_format: ~
include_format: true
Set the include_format to false to remove the format from the route.
You can view the expanded configuration options for FOSRestBundle here.