texmath-0.12.7: test/writer/typst/double-struck.test

<<< native
[ EStyled
    TextDoubleStruck
    [ EArray
        [ AlignLeft ]
        [ [ [ EText TextNormal "0123456789" ] ]
        , [ [ EText TextNormal "ABCDEFGHIJKLMNOPQRSTUVWXYZ" ] ]
        , [ [ EText TextNormal "abcdefghijklmnopqrstuvwxyz" ] ]
        ]
    ]
]
>>> typst
bb(upright("0123456789")\
upright("ABCDEFGHIJKLMNOPQRSTUVWXYZ")\
upright("abcdefghijklmnopqrstuvwxyz"))