[DonHopkins]

I perceive FORTH in a different way. The only sigil in FORTH is SPACE. Everything else is a letter.

Then you have Bjarne Stroustrup's "Generalized Overloading for C++2000", with which you can overload whitespace, uniquely redefining the meaning of space, newline, tab, and even the absence of space.

https://www.stroustrup.com/whitespace98.pdf