It could but not too useful, because very few programming languages understand the semantics of J array. That said, it would be trivial to serialize J array into xml. (The implementation is left as an exercise.)

   j2xml 56
<array>
 <data>
  <number>56</number>
 </data>
</array>

   j2xml ,56
<array>
 <rank>
  <dimension>1</dimension>
 </rank>
 <data>
  <number>56</number>
 </data>
</array>

   j2xml 56;(,56);3 4$'abcd'
<array>
 <rank>
  <dimension>3</dimension>
 </rank>
 <data>
  <array>
   <data>
    <number>56</number>
   </data>
  </array>
  <array>
   <rank>
    <dimension>1</dimension>
   </rank>
   <data>
    <number>56</number>
   </data>
  </array>
  <array>
   <rank>
    <dimension>3</dimension>
    <dimension>4</dimension>
   </rank>
   <data>
    <char><![CDATA[abcdabcdabcd]]></char>
   </data>
  </array>
 </data>
</array>

--
regards,
bill
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