[claytonwramsey]

This is really excellent work, and a great write-up. I think it would definitely be possible to speed up a lot of the algorithms with some tricks. Replacing hashmaps with bitmaps and byte-index arrays for character painting and ascii-to-variants seems like a lead, based on what I've read. Of course, that doesn't really matter for this code since it's already fast enough.

[chevyray]

Glad you brought this up, because it's absolutely true! All the code is not on the site, but I actually allocate and clone a lot of strings and data structures as well. I did optimal code where it was obvious (bitmap copying, easily parallelizable things), and it was SO instant that I didn't even bother trying to optimize the other things. But it could be done!

It's easy to forget how fast on-the-ground languages like Rust and C++ and Go are, not to mention when you use their multi-threading primitives and worker queues/etc.