maction-08.test

<<< native
[ EDelimited
    "("
    ")"
    [ Right
        (EArray
           [ AlignCenter , AlignCenter ]
           [ [ [ EGrouped [ ENumber "12" , EIdentifier "x" ] ]
             , [ ENumber "0" ]
             ]
           , [ [ ENumber "0" ] , [ ENumber "117" ] ]
           ])
    ]
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mo stretchy="true" form="prefix">(</mo>
    <mtable>
      <mtr>
        <mtd columnalign="center">
          <mrow>
            <mn>12</mn>
            <mi>x</mi>
          </mrow>
        </mtd>
        <mtd columnalign="center">
          <mn>0</mn>
        </mtd>
      </mtr>
      <mtr>
        <mtd columnalign="center">
          <mn>0</mn>
        </mtd>
        <mtd columnalign="center">
          <mn>117</mn>
        </mtd>
      </mtr>
    </mtable>
    <mo stretchy="true" form="postfix">)</mo>
  </mrow>
</math>