Earlier quoted context omitted.
Very easy. You could do it yourself after 5 min of reading ;-)
That time would only be enough to read the overview, go through the examples, click on the "uniquely customizable" link hoping to see the answer and then be flooded with the garbage digital tokens of the scientific world - 100+ references...
I'm not clear what your asking about regarding the ellipses though.
[0] https://docs.racket-lang.org/guide/macros.html
[1] https://docs.racket-lang.org/reference/Reader_Extension.html
[2] https://docs.racket-lang.org/rhombus-meta/index.html
[3] https://docs.racket-lang.org/rhombus/Syntax_Objects_and_Macr...