how do I configure custom subsref() to correctly handle 1:end range

[withaar]

Hi all,

I am making some improvements I hope to the quaternion toolbox. The 
following does not work:

q = quaternion(ones(1,10));
a = q(1:end);

The range "1:end" appears in subsref(q,s) as:

s =
  scalar structure containing the fields:
    type = ()
    subs =
    {
      [1,1] =  1
    }

and only the first element is returned.

How can I fix this?

Thanks!

Willem