The LaTeX3 source contains a folder xor
which contains, among other things, xo-grid
, which is supposed to provide LaTeX3 with grid support. To quote Joseph Wright,
Getting to grips with
xor
is one of the biggest challenges facing the LaTeX3 Project: the code is complex and has evolved over many years. As such, there is currently no good estimate of when it will be production ready. It's also worth noting that the code will almost certainly break any LaTeX2e package that relies on the LaTeX2e output routine.
However, I was unable to find good documentation about what exactly xor
is. I suspect that the or
might stand for "output routine", but that does not help much. What exactly is xor
?
xor
implementation is not meant for production code so far (i.e. usage in documents)or
tex.stackexchange.com/questions/8212/… andx
is the typical way to mention a difference or a new feature such as package namesgraphicx,xparse,xstring
and so on.xor
in his 2000 paper: latex-project.org/papers/xo-pfloat.pdf . I believe the code has changed substantially since then (updated for expl3), but otherwise the ideas are still relevant.