Google App Engine : How to choose regular expression for app.yaml
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For example : I have sub-application name blog. So, when user want to go front page of blog, he will go : `localhost/blog` and so the regular expression for this link is : 

    -url: /blog
    script:blog.app

but, for example, in this application, there are some other links : `localhost/blog/X` such as  : `localhost/blog/signup` or `localhost/blog/signin`..... And above regular expression will not fit. If I want to use those links, I must change again: 

    -url: /blog/.*
    script:blog.app

But this regular expression cannot fit for `localhost/blog`. Of course, I can combine those regular expression together, but I think It's too handy. Can I have one regular expression and fit both.

Thanks :)