This was the big goal I had when I built the Ohm visualizer (ohmlang.github.io/editor/#30325d…): to visually represent the *entire* computation — failed branches and all — and to make it possible to jump to any node and step from there. twitter.com/geoffreylitt/s…

It could be more discoverable / learnable but I'm still pretty happy with how it turned out.

(I really should write this up somewhere.)

Showing a functional program as an icicle plot / flame graph is straightforward, but the challenge here was:

1️⃣ Ohm's parsing algorithm is not purely functional (due to how it handles left recursion), and
2️⃣ To represent both the parse tree and the computation in the same way