from Walter
So if I wanted to export a Turtle Art project to Etoys... how would
you suggest I get started?
from Bert
Well, I'd start by making an Etoys project that is equivalent to a TA project. The Turtle would be an Etoys sketch, box1 and box2 would be variables of that sketch, stack1 and stack2 separate scripts. The world should be set to origin-at-center. Most TA blocks have a 1-to-1 mapping to Etoys tiles, some non-straightforward ones are arc, set shade, print, wait, forever, repeat, stop. In particular the control structures require some thought, "forever" maps naturally to a ticking Etoys script, but the execution semantics in Etoys are somewhat different so making wait and stop work correctly is not trivial. Once you have that you could switch the tile script to textual mode and try to export from Turtle Art that textual representation. To get the exported text into Etoys I'd suggest copy-and-paste first.
To later actually export an Etoys project the only viable way would be Yoshiki's s-expression project format, which is a high-level textual description of a project, rather than the default binary object dump. IIRC we disabled the textual s-expression loader however, to avoid parsing overhead it expects a binary s-expression representation. Yoshiki knows the details.
Anyway, you should post to the etoys list, someone might have much better ideas than me.