Module walk 

A line of exploration, as data.

What log prints and what a browser draws are the same answer read two ways, so it is worked out once and here. A second copy of this in a request handler would be a view that quietly disagreed with the terminal about what an investigation contains, which is the one thing neither can afford.

Structs

Remembered

What it takes to read what is already known of an investigation: its name, where it is kept, and which way is better.

Step

One step: what the edit from from to to did.

Stop

One commit of a line, with everything known about it that is not a step.

Walk

A whole line, ready to print or to draw.

Functions

folds

Whether a stop folds when a pruned line is drawn.

walked

Works out a line: what was probed, what each step did, and what was said.