Parse server side non html tag

Question

I wish parse a Play framework template File, with tags like this ..

#{form @UneReponses.modifier(unereponse.id), method:'PUT', id:'creationForm'}

How to create a tag with this kind of syntax ?

Begin with

(hashtag){form --> name of tag

@UneReponses.modifier(unereponse.id) --> name

method:'PUT' and id:'creationForm' --> attribute

} end of tag;

Any solution ?

Thanks