texmath-0.13.1.2: test/writer/mml/mfencedBseparators8.test

<<< native
[ EDelimited
    "("
    ")"
    [ Right
        (EGrouped
           [ ESub (EIdentifier "a") (ENumber "1")
           , ESymbol Pun ","
           , ESub (EIdentifier "a") (ENumber "2")
           , ESymbol Pun ","
           , ESub (EIdentifier "a") (ENumber "3")
           ])
    ]
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mo stretchy="true" form="prefix">(</mo>
    <mrow>
      <msub>
        <mi>a</mi>
        <mn>1</mn>
      </msub>
      <mo>,</mo>
      <msub>
        <mi>a</mi>
        <mn>2</mn>
      </msub>
      <mo>,</mo>
      <msub>
        <mi>a</mi>
        <mn>3</mn>
      </msub>
    </mrow>
    <mo stretchy="true" form="postfix">)</mo>
  </mrow>
</math>