--- parse tree ---
[ Comment
, SoftBreak
, Equation
    False
    [ Text "h"
    , Text ","
    , Code
        "typ/math/style-02.typ"
        ( line 2 , column 5 )
        (FuncCall (Ident (Identifier "bb")) [ BlockArg [ Text "N" ] ])
    , Text ","
    , Code
        "typ/math/style-02.typ"
        ( line 2 , column 12 )
        (FuncCall (Ident (Identifier "cal")) [ BlockArg [ Text "R" ] ])
    , Text ","
    , Code
        "typ/math/style-02.typ"
        ( line 2 , column 20 )
        (Ident (Identifier "Theta"))
    , Text ","
    , Code
        "typ/math/style-02.typ"
        ( line 2 , column 27 )
        (FuncCall
           (Ident (Identifier "italic"))
           [ BlockArg
               [ Code
                   "typ/math/style-02.typ"
                   ( line 2 , column 34 )
                   (Ident (Identifier "Theta"))
               ]
           ])
    , Text ","
    , Code
        "typ/math/style-02.typ"
        ( line 2 , column 42 )
        (FuncCall
           (Ident (Identifier "sans"))
           [ BlockArg
               [ Code
                   "typ/math/style-02.typ"
                   ( line 2 , column 47 )
                   (Ident (Identifier "Theta"))
               ]
           ])
    , Text ","
    , Code
        "typ/math/style-02.typ"
        ( line 2 , column 55 )
        (FuncCall
           (Ident (Identifier "sans"))
           [ BlockArg
               [ Code
                   "typ/math/style-02.typ"
                   ( line 2 , column 60 )
                   (FuncCall
                      (Ident (Identifier "italic"))
                      [ BlockArg
                          [ Code
                              "typ/math/style-02.typ"
                              ( line 2 , column 67 )
                              (Ident (Identifier "Theta"))
                          ]
                      ])
               ]
           ])
    ]
, ParBreak
]
--- evaluated ---
document(body: { text(body: [
]), 
                 math.equation(block: false, 
                               body: { text(body: [h]), 
                                       text(body: [,]), 
                                       math.bb(body: text(body: [N])), 
                                       text(body: [,]), 
                                       math.cal(body: text(body: [R])), 
                                       text(body: [,]), 
                                       text(body: [Θ]), 
                                       text(body: [,]), 
                                       math.italic(body: text(body: [Θ])), 
                                       text(body: [,]), 
                                       math.sans(body: text(body: [Θ])), 
                                       text(body: [,]), 
                                       math.sans(body: math.italic(body: text(body: [Θ]))) }, 
                               numbering: none), 
                 parbreak() })
