dense->strides.resize(dense->dims);
  dense->begin_mask = 0;
  dense->end_mask = 0;
  dense->shrink_axis_mask = 0;

  // Count number of new_axis after ellipsis. This helps in calculating the
  // number of dimensions ellipsis represents in the sparse spec.
  bool ellipsis_seen = false;
  int num_new_axis_after_ellipsis = 0;
  for (int sparse_index = 0; sparse_index < sparse.dims; ++sparse_index) {

double quotes <code>""</code> or back quotes <code>``</code>.
</p>

<p>
The form <code>a … b</code> represents the set of characters from
<code>a</code> through <code>b</code> as alternatives. The horizontal
ellipsis <code>…</code> is also used elsewhere in the spec to informally denote various
enumerations or code snippets that are not further specified. The character <code>…</code>