XY is a family of array-oriented, concatenative programming languages with first-class continuations. XY 1 has quotations, lists, functions, and patterns. XY 2 is flat. XY 0 has quotations and shuffle-symbols but dispenses with lists and patterns.

For details, see: http://www.nsl.com/k/xy/xy.htm

This revision created on Fri, 9 Aug 2019 06:00:23 by Ratatouille