Returning TM Content

everything which is not string is interpreted as TM content (AsTMa= notation)

function test (map $m) as map return { 
forall [ $j (journal-paper) ]
return

   {$j} (journal-paper)
   bn: {$j/bn}
   {$j/oc}   # clone all url occurrences 
   {$j/in}   # clone all internal occurrences

   (was-published-in)
   date     : x-dates-{$j/in(publication-date)}
   document : $j

  {
   forall $a [ (is-author-of)
               opus   : $j ] return

      {$a/*} # clone the whole node
   }
}

evaluation context is now topic maps, it depends on the position whether variable are interpolated as items or as strings