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!'"
]
>>> eqn
left { {1 over 78 , {sin x} . y} right ) times \[u1D51E] sup {2 x} + 2 sub j x + 45 over {1 over 78} * x sub 2 sup 3 = "" sup 3 sqrt {1 over {23 + β}} roman "#This is my string!'"