I have found this does not work

What the h... does that mean "it doesn work"? What error/misbehaviour do you get? Am i supposed to guess what's wrong for you?

But I can answer your question in spite of the lack of information. It's 42.

update: to make clear the question _is_ insufficient: There are at least two possibilites: The Regexp doesn't compile OR it doesn't match the wanted data. The second possibility can have lots of variants. I am not here to guess all that and definetely not for getting stupid answers. Thanks

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