texmath-0.12.5: test/writer/mml/msubsup-07.test

<<< native
[ ESubsup (EIdentifier "D") (EIdentifier "x") (ENumber "2")
, ESymbol Rel "="
, ESubsup
    (EIdentifier "D")
    (EUnder False (EIdentifier "x") (EPhantom (ENumber "0")))
    (EOver False (ENumber "2") (EPhantom (ENumber "0")))
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <msubsup>
      <mi>D</mi>
      <mi>x</mi>
      <mn>2</mn>
    </msubsup>
    <mo>=</mo>
    <msubsup>
      <mi>D</mi>
      <munder>
        <mi>x</mi>
        <mphantom>
          <mn>0</mn>
        </mphantom>
      </munder>
      <mover>
        <mn>2</mn>
        <mphantom>
          <mn>0</mn>
        </mphantom>
      </mover>
    </msubsup>
  </mrow>
</math>