Lexical syntax for boxes Lassi Kortela 09 Nov 2022 16:34 UTC

 From the SRFI: "Racket, Gambit, SISC, Chez, and Chicken all support the
lexical syntax #&datum to create a literal box"

The current versions of Gambit, Chez, and Chicken raise a syntax error
on #&123

Racket works as advertised. I'm not able to test SISC.