language code and regex

[Denis Gaertner]

Hi,

another problem, language codes this time. I am trying to incorporate
the search using regex patterns and language codes having this data for
instance :

@prefix foaf: <http://xmlns.com/foaf/0.1/> .
<http://johnsmith.org/Jonny>     a foaf:Person;
        foaf:name "John Smith";
        foaf:name "Smith"@en-US;
        foaf:name "Schmidt"@de .

I can do this: 

?x ?foaf:name "Schmidt"@de 
?x ?foaf:name ?name FILTER (?name = "Schmidt"@de)

but how do I get this with the regex function? 

This doesn't catch it: regex(?name, "^Schmidt$") && lang(?name) = "de")

Thanks

Denis