[Radiant] regexpr problem

[Horst Rischbode]

 Hi,

this is really strange. In my pages, I have the following code:
<r:if_url matches="^/articles/\d{4}/\d{2}/\d{2}/.+">
    # do something brilliant
</r:if_url>

This regexpr matches to:
/articles/2010/08/
/articles/2010/08/07/xyz

All tests with several online regexpr matchers match the second url 
only, which I would expect for my code, too.

I'm on Windows with MySQL and Ruby 1.8.6 with Radiant 0.9.1 installed.

Any idea, what's going wrong?

Horst