Sweet. We're working on a rewrite of the table layout engine (github: bradediger/prawn-layout@refactor -- whoa, that is meta) so chime in if there's anything that seems missing from the current API. cheers.

[edit: fix github project reference]

I did a similar thing, actually, to render a successive series of Prawn documents (2-d scenes) into a Quicktime movie. Prawn -> series of pngs -> ffmpeg -> mov. It was a quick-and-dirty hack, but I was surprised by the simplicity.

I'm new to Lisp, so naturally thought that readtable hacking would be fun. ;-) Here's the result of porting Arc's anonymous function syntax to CL.