Alignment or justification

As in left justified vs. right justified

I think it's just called RTL (Right To Left)

I see in some places they call it BiDi if you mix the two together.

as in Bidirectional

This might help: https://rtlstyling.com/posts/rtl-styling

Decent orange site discussion of it: https://news.ycombinator.com/item?id=29508828

probably not what you're looking for but you never know https://developer.mozilla.org/en-US/docs/Web/HTML/Element/bdi

I'm not sure whether you're asking for a name for the concept (text direction, bidirectional text support, etc), or for ways to implement it? There's the CSS direction property: https://developer.mozilla.org/en-US/docs/Web/CSS/direction There's also the CSS writing-mode property: https://developer.mozilla.org/en-US/docs/Web/CSS/writing-mode

Specifically I am trying to figure out the right way to apply it to thishttps://blog.rust-lang.org/2016/08/10/Shape-of-errors-to-come.html I think everything in here is more than enough info

(The proper name was also important because i’m trying to craft a JEP and I don’t want to be shut down out of hand for bad terminology)