--- parse tree ---
[ Code
    "test/typ/math/matrix-04.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/matrix-04.typ"
                                 ( line 1 , column 47 )
                                 (FuncCall
                                    (Ident (Identifier "repr"))
                                    [ NormalArg (Ident (Identifier "x")) ])
                             , Space
                             , Text "/"
                             , Text "="
                             , Space
                             , Code
                                 "test/typ/math/matrix-04.typ"
                                 ( line 1 , column 59 )
                                 (FuncCall
                                    (Ident (Identifier "repr"))
                                    [ NormalArg (Ident (Identifier "y")) ])
                             , Text ")"
                             ])
                      )
                    ]
                ]))))
, SoftBreak
, Comment
, Code
    "test/typ/math/matrix-04.typ"
    ( line 3 , column 2 )
    (Set
       (Ident (Identifier "align"))
       [ NormalArg (Ident (Identifier "center")) ])
, SoftBreak
, Code
    "test/typ/math/matrix-04.typ"
    ( line 4 , column 2 )
    (FuncCall
       (Ident (Identifier "grid"))
       [ KeyValArg (Identifier "columns") (Literal (Int 3))
       , KeyValArg (Identifier "gutter") (Literal (Numeric 10.0 Pt))
       , NormalArg
           (Block
              (Content
                 [ Equation
                     True
                     [ Code
                         "test/typ/math/matrix-04.typ"
                         ( line 8 , column 5 )
                         (FuncCall
                            (Ident (Identifier "mat"))
                            [ BlockArg [ Text "1" ]
                            , BlockArg [ Text "2" ]
                            , KeyValArg (Identifier "delim") (Block (Content [ Text " [" ]))
                            ])
                     ]
                 ]))
       , NormalArg
           (Block
              (Content
                 [ Equation
                     True
                     [ Code
                         "test/typ/math/matrix-04.typ"
                         ( line 9 , column 5 )
                         (FuncCall
                            (Ident (Identifier "mat"))
                            [ ArrayArg [ [ Text "1" , Text "2" ] ]
                            , KeyValArg (Identifier "delim") (Block (Content [ Text " [" ]))
                            ])
                     ]
                 ]))
       , NormalArg
           (Block
              (Content
                 [ Equation
                     True
                     [ Code
                         "test/typ/math/matrix-04.typ"
                         ( line 10 , column 5 )
                         (FuncCall
                            (Ident (Identifier "mat"))
                            [ KeyValArg (Identifier "delim") (Block (Content [ Text " [" ]))
                            , BlockArg [ Text "1" ]
                            , BlockArg [ Text "2" ]
                            ])
                     ]
                 ]))
       , NormalArg
           (Block
              (Content
                 [ Equation
                     True
                     [ Code
                         "test/typ/math/matrix-04.typ"
                         ( line 12 , column 5 )
                         (FuncCall
                            (Ident (Identifier "mat"))
                            [ ArrayArg [ [ Text "1" ] , [ Text "2" ] ]
                            , KeyValArg (Identifier "delim") (Block (Content [ Text " [" ]))
                            ])
                     ]
                 ]))
       , NormalArg
           (Block
              (Content
                 [ Equation
                     True
                     [ Code
                         "test/typ/math/matrix-04.typ"
                         ( line 13 , column 5 )
                         (FuncCall
                            (Ident (Identifier "mat"))
                            [ ArrayArg [ [ Text "1" ] ]
                            , KeyValArg (Identifier "delim") (Block (Content [ Text " [" ]))
                            , BlockArg [ Text "2" ]
                            ])
                     ]
                 ]))
       , NormalArg
           (Block
              (Content
                 [ Equation
                     True
                     [ Code
                         "test/typ/math/matrix-04.typ"
                         ( line 14 , column 5 )
                         (FuncCall
                            (Ident (Identifier "mat"))
                            [ KeyValArg (Identifier "delim") (Block (Content [ Text " [" ]))
                            , ArrayArg [ [ Text "1" ] , [ Text "2" ] ]
                            ])
                     ]
                 ]))
       , NormalArg
           (Block
              (Content
                 [ Equation
                     True
                     [ Code
                         "test/typ/math/matrix-04.typ"
                         ( line 16 , column 5 )
                         (FuncCall
                            (Ident (Identifier "mat"))
                            [ ArrayArg [ [ Text "1" , Text "2" ] ]
                            , KeyValArg (Identifier "delim") (Block (Content [ Text " [" ]))
                            , BlockArg [ Text "3" ]
                            , BlockArg [ Text "4" ]
                            ])
                     ]
                 ]))
       , NormalArg
           (Block
              (Content
                 [ Equation
                     True
                     [ Code
                         "test/typ/math/matrix-04.typ"
                         ( line 17 , column 5 )
                         (FuncCall
                            (Ident (Identifier "mat"))
                            [ KeyValArg (Identifier "delim") (Block (Content [ Text " [" ]))
                            , ArrayArg [ [ Text "1" , Text "2" ] , [ Text "3" , Text "4" ] ]
                            ])
                     ]
                 ]))
       , NormalArg
           (Block
              (Content
                 [ Equation
                     True
                     [ Code
                         "test/typ/math/matrix-04.typ"
                         ( line 18 , column 5 )
                         (FuncCall
                            (Ident (Identifier "mat"))
                            [ ArrayArg [ [ Text "1" , Text "2" ] , [ Text "3" , Text "4" ] ]
                            , KeyValArg (Identifier "delim") (Block (Content [ Text " [" ]))
                            ])
                     ]
                 ]))
       ])
, ParBreak
]
--- evaluated ---
document(body: { text(body: [
]), 
                 text(body: [
]), 
                 grid(children: (math.equation(block: true, 
                                               body: math.mat(rows: ((text(body: [1]), 
                                                                      text(body: [2])))), 
                                               numbering: none), 
                                 math.equation(block: true, 
                                               body: math.mat(rows: ((text(body: [1]), 
                                                                      text(body: [2])))), 
                                               numbering: none), 
                                 math.equation(block: true, 
                                               body: math.mat(rows: ((text(body: [1]), 
                                                                      text(body: [2])))), 
                                               numbering: none), 
                                 math.equation(block: true, 
                                               body: math.mat(rows: ((text(body: [1])), 
                                                                     (text(body: [2])))), 
                                               numbering: none), 
                                 math.equation(block: true, 
                                               body: math.mat(rows: ((text(body: [1])), 
                                                                     (text(body: [2])))), 
                                               numbering: none), 
                                 math.equation(block: true, 
                                               body: math.mat(rows: ((text(body: [1])), 
                                                                     (text(body: [2])))), 
                                               numbering: none), 
                                 math.equation(block: true, 
                                               body: math.mat(rows: ((text(body: [1]), 
                                                                      text(body: [2])), 
                                                                     (text(body: [3]), 
                                                                      text(body: [4])))), 
                                               numbering: none), 
                                 math.equation(block: true, 
                                               body: math.mat(rows: ((text(body: [1]), 
                                                                      text(body: [2])), 
                                                                     (text(body: [3]), 
                                                                      text(body: [4])))), 
                                               numbering: none), 
                                 math.equation(block: true, 
                                               body: math.mat(rows: ((text(body: [1]), 
                                                                      text(body: [2])), 
                                                                     (text(body: [3]), 
                                                                      text(body: [4])))), 
                                               numbering: none)), 
                      columns: 3, 
                      gutter: 10.0pt), 
                 parbreak() })