I\'m attempting to do something using Silex (which uses the Symfony routing component - so the answer may be applicable to Symfony as well)
I am adding Silex to a legacy
I found the answer within the symfony cookbook...
http://symfony.com/doc/2.0/cookbook/routing/slash_in_parameter.html
$app->match('{url}', function($url){ //do legacy stuff })->assert('url', '.+');