simplePres.test

<<< native
[ EDelimited
    "{"
    ")"
    [ Right
        (EGrouped
           [ EFraction NormalFrac (ENumber "1") (ENumber "78")
           , ESymbol Pun ","
           , EGrouped [ EMathOperator "sin" , EIdentifier "x" ]
           , ESymbol Alpha "."
           , EIdentifier "y"
           ])
    ]
, ESymbol Bin "\215"
, ESuper
    (EIdentifier "\120094")
    (EGrouped [ ENumber "2" , EIdentifier "x" ])
, ESymbol Bin "+"
, ESub (ENumber "2") (EIdentifier "j")
, EIdentifier "x"
, ESymbol Bin "+"
, EFraction
    NormalFrac
    (ENumber "45")
    (EFraction NormalFrac (ENumber "1") (ENumber "78"))
, ESymbol Ord "*"
, ESubsup (EIdentifier "x") (ENumber "2") (ENumber "3")
, ESymbol Rel "="
, ERoot
    (ENumber "3")
    (EFraction
       NormalFrac
       (ENumber "1")
       (EGrouped [ ENumber "23" , ESymbol Bin "+" , ENumber "\946" ]))
, EText TextNormal "#This is my string!'"
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mrow>
      <mo stretchy="true" form="prefix">{</mo>
      <mrow>
        <mfrac>
          <mn>1</mn>
          <mn>78</mn>
        </mfrac>
        <mo>,</mo>
        <mrow>
          <mrow>
            <mi mathvariant="normal">sin</mi>
            <mo>&#8289;</mo>
          </mrow>
          <mi>x</mi>
        </mrow>
        <mo>.</mo>
        <mi>y</mi>
      </mrow>
      <mo stretchy="true" form="postfix">)</mo>
    </mrow>
    <mo>×</mo>
    <msup>
      <mi>𝔞</mi>
      <mrow>
        <mn>2</mn>
        <mi>x</mi>
      </mrow>
    </msup>
    <mo>+</mo>
    <msub>
      <mn>2</mn>
      <mi>j</mi>
    </msub>
    <mi>x</mi>
    <mo>+</mo>
    <mfrac>
      <mn>45</mn>
      <mfrac>
        <mn>1</mn>
        <mn>78</mn>
      </mfrac>
    </mfrac>
    <mi>*</mi>
    <msubsup>
      <mi>x</mi>
      <mn>2</mn>
      <mn>3</mn>
    </msubsup>
    <mo>=</mo>
    <mroot>
      <mfrac>
        <mn>1</mn>
        <mrow>
          <mn>23</mn>
          <mo>+</mo>
          <mn>β</mn>
        </mrow>
      </mfrac>
      <mn>3</mn>
    </mroot>
    <mtext mathvariant="normal">#This is my string!&#39;</mtext>
  </mrow>
</math>