The Lisp Machine manual documents their infix reader macro: https://hanshuebner.github.io/lmman/rdprt.xml#reader https://hanshuebner.github.io/lmman/rdprt.xml#

The Lisp Machine manual documents their infix reader macro: https://hanshuebner.github.io/lmman/rdprt.xml#reader https://hanshuebner.github.io/lmman/rdprt.xml#reader #⋄x:y+car(a1[i,j])⋄ which gets read into something like (setq x (+ y (car (aref a1 i j))))