android intentfilter url,Intent filter browser android:pathPrefix url parameter

So I'd like my activity to catch when an intent (browser) calls the link:

http://host/info?username=samplename

and not when:

http://host/info?username=noname

Here is my code coming from AndroidManifest.xml

\

I have it working for a simple prefix such as android:pathPrefix="/info"

But I have problem with the character ?

I tried using \? but doesn't work

http://developer.android.com/guide/topics/manifest/data-element.html#path

Anybody would have any idea?

Thanks