texmath-0.12.5: test/writer/mml/mstyle1.test

<<< native
[ EDelimited
    "("
    ")"
    [ Right (EFraction NormalFrac (EIdentifier "a") (EIdentifier "b"))
    ]
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mo stretchy="true" form="prefix">(</mo>
    <mfrac>
      <mi>a</mi>
      <mi>b</mi>
    </mfrac>
    <mo stretchy="true" form="postfix">)</mo>
  </mrow>
</math>