--- parse tree ---
[ Code
    "test/typ/math/frac-06.typ"
    ( line 1 , column 2 )
    (Let
       (BasicBind (Just (Identifier "test")))
       (FuncExpr
          [ NormalParam (Identifier "x") , NormalParam (Identifier "y") ]
          (Block
             (CodeBlock
                [ If
                    [ ( Equals (Ident (Identifier "x")) (Ident (Identifier "y"))
                      , Block (Content [ Text "\9989" ])
                      )
                    , ( Literal (Boolean True)
                      , Block
                          (Content
                             [ Text "\10060"
                             , Text "("
                             , Code
                                 "test/typ/math/frac-06.typ"
                                 ( line 1 , column 47 )
                                 (FuncCall
                                    (Ident (Identifier "repr"))
                                    [ NormalArg (Ident (Identifier "x")) ])
                             , Space
                             , Text "/"
                             , Text "="
                             , Space
                             , Code
                                 "test/typ/math/frac-06.typ"
                                 ( line 1 , column 59 )
                                 (FuncCall
                                    (Ident (Identifier "repr"))
                                    [ NormalArg (Ident (Identifier "y")) ])
                             , Text ")"
                             ])
                      )
                    ]
                ]))))
, SoftBreak
, Comment
, Equation
    True
    [ MFrac
        (MAttach (Just (Text "1")) Nothing (Text "a"))
        (MAttach (Just (Text "2")) Nothing (Text "b"))
    , Text ","
    , MFrac
        (Text "1")
        (MGroup
           Nothing
           Nothing
           [ Text "f" , MGroup (Just "(") (Just ")") [ Text "x" ] ])
    , Text ","
    , MFrac
        (Code
           "test/typ/math/frac-06.typ"
           ( line 3 , column 20 )
           (FuncCall (Ident (Identifier "zeta")) [ BlockArg [ Text "x" ] ]))
        (Text "2")
    , Text ","
    , Text " foo"
    , Code
        "test/typ/math/frac-06.typ"
        ( line 3 , column 36 )
        (FieldAccess
           (Ident (Identifier "l"))
           (FieldAccess
              (Ident (Identifier "double")) (Ident (Identifier "bracket"))))
    , Text "x"
    , MFrac
        (Code
           "test/typ/math/frac-06.typ"
           ( line 3 , column 39 )
           (FieldAccess
              (Ident (Identifier "r"))
              (FieldAccess
                 (Ident (Identifier "double")) (Ident (Identifier "bracket")))))
        (Text "2")
    , HardBreak
    , MFrac (Text "1.2") (Text "3.7")
    , Text ","
    , MAttach Nothing (Just (Text "3.4")) (Text "2.3")
    , HardBreak
    , Text "\127987"
    , Text "\65039"
    , Text "\8205"
    , Text "\127752"
    , MFrac (MGroup (Just "[") (Just "]") [ Text "x" ]) (Text "2")
    , Text ","
    , Text "f"
    , MFrac (MGroup (Just "[") (Just "]") [ Text "x" ]) (Text "2")
    , Text ","
    , Code
        "test/typ/math/frac-06.typ"
        ( line 5 , column 23 )
        (Ident (Identifier "phi"))
    , MFrac (MGroup (Just "[") (Just "]") [ Text "x" ]) (Text "2")
    , Text ","
    , Text "\127987"
    , Text "\65039"
    , Text "\8205"
    , Text "\127752"
    , MFrac (MGroup (Just "[") (Just "]") [ Text "x" ]) (Text "2")
    , HardBreak
    , Text "+"
    , MFrac (MGroup (Just "[") (Just "]") [ Text "x" ]) (Text "2")
    , Text ","
    , MFrac
        (MGroup
           Nothing
           Nothing
           [ Text "1" , MGroup (Just "(") (Just ")") [ Text "x" ] ])
        (Text "2")
    , Text ","
    , Text "2"
    , MFrac (MGroup (Just "[") (Just "]") [ Text "x" ]) (Text "2")
    , MGroup
        Nothing
        Nothing
        [ HardBreak , MGroup (Just "(") (Just ")") [ Text "a" ] ]
    , MFrac (Text "b") (Text "2")
    , Text ","
    , MGroup
        Nothing
        Nothing
        [ Text "b" , MGroup (Just "(") (Just ")") [ Text "a" ] ]
    , MFrac (MGroup (Just "[") (Just "]") [ Text "b" ]) (Text "2")
    ]
, ParBreak
]
--- evaluated ---
document(body: { text(body: [
]), 
                 math.equation(block: true, 
                               body: { math.frac(denom: math.attach(b: text(body: [2]), 
                                                                    base: text(body: [b]), 
                                                                    t: none), 
                                                 num: math.attach(b: text(body: [1]), 
                                                                  base: text(body: [a]), 
                                                                  t: none)), 
                                       text(body: [,]), 
                                       math.frac(denom: { text(body: [f]), 
                                                          math.lr(body: ({ [(], 
                                                                           text(body: [x]), 
                                                                           [)] })) }, 
                                                 num: text(body: [1])), 
                                       text(body: [,]), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: { text(body: [ζ]), 
                                                        text(body: [(]), 
                                                        text(body: [x]), 
                                                        text(body: [)]) }), 
                                       text(body: [,]), 
                                       text(body: [ foo]), 
                                       text(body: [⟦]), 
                                       text(body: [x]), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: text(body: [⟧])), 
                                       linebreak(), 
                                       math.frac(denom: text(body: [3.7]), 
                                                 num: text(body: [1.2])), 
                                       text(body: [,]), 
                                       math.attach(b: none, 
                                                   base: text(body: [2.3]), 
                                                   t: text(body: [3.4])), 
                                       linebreak(), 
                                       text(body: [🏳]), 
                                       text(body: [️]), 
                                       text(body: [‍]), 
                                       text(body: [🌈]), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: math.lr(body: ({ [[], 
                                                                       text(body: [x]), 
                                                                       []] }))), 
                                       text(body: [,]), 
                                       text(body: [f]), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: math.lr(body: ({ [[], 
                                                                       text(body: [x]), 
                                                                       []] }))), 
                                       text(body: [,]), 
                                       text(body: [φ]), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: math.lr(body: ({ [[], 
                                                                       text(body: [x]), 
                                                                       []] }))), 
                                       text(body: [,]), 
                                       text(body: [🏳]), 
                                       text(body: [️]), 
                                       text(body: [‍]), 
                                       text(body: [🌈]), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: math.lr(body: ({ [[], 
                                                                       text(body: [x]), 
                                                                       []] }))), 
                                       linebreak(), 
                                       text(body: [+]), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: math.lr(body: ({ [[], 
                                                                       text(body: [x]), 
                                                                       []] }))), 
                                       text(body: [,]), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: { text(body: [1]), 
                                                        math.lr(body: ({ [(], 
                                                                         text(body: [x]), 
                                                                         [)] })) }), 
                                       text(body: [,]), 
                                       text(body: [2]), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: math.lr(body: ({ [[], 
                                                                       text(body: [x]), 
                                                                       []] }))), 
                                       linebreak(), 
                                       math.lr(body: ({ [(], 
                                                        text(body: [a]), 
                                                        [)] })), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: text(body: [b])), 
                                       text(body: [,]), 
                                       text(body: [b]), 
                                       math.lr(body: ({ [(], 
                                                        text(body: [a]), 
                                                        [)] })), 
                                       math.frac(denom: text(body: [2]), 
                                                 num: math.lr(body: ({ [[], 
                                                                       text(body: [b]), 
                                                                       []] }))) }, 
                               numbering: none), 
                 parbreak() })