[ Mode

The mode operator selects one lens and keeps the others available. Reading, inspecting, comparing, and building are pressures on the same material. Your place in the page stays.

^"mode_contract"{

Contract

In hand

Switch the lens and keep your place. The page can say why another view matters, and the other lenses stay available.

What it means

The mark pins one posture in a field of postures. A lens you are not using is still named beside the one you are.

Brace Physics

The brace is a parameter on the reading. The material stays. The pressure on it changes.

Before and after

Prefix [x selects before entry. The unselected siblings remain available beside it.

?["mode_example"]

Example

[reading
[inspect
[build
[return

Take this example apart in the parser: each mark becomes a token you can inspect, and the parser says whether the source rebuilds exactly.

~"operator_ring"