Module history 

History keys (Repeat / Alt-Repeat / Adaptive of last output). History keys: behaviours that depend on previously resolved key output.

• Key::Repeat re-emits the last remembered crate::key::KeyOutput as the pressed key’s own output while held.
• Key::AltRepeat looks up that last output in a Nickel-defined table (Config::alt_repeat) and emits the mapped alternate while held (QMK-style alternate repeat for single keys).
• Key::Adaptive looks up that last output in a per-key rule table (Hands Down / ZMK adaptive-key style). On a miss, the key emits its default output.

Structs

AdaptiveKey

Per-site adaptive key.

AltRepeatRule

One alternate-repeat mapping: when the last remembered output equals Self::prev, Key::AltRepeat emits Self::emit.

Config

Config for history keys (alt-repeat lookup table).

Context

Context for history keys: tracks the last rememberable resolved output.

Event

Events for history keys. (None for v1.)

KeyState

Pressed state: the output being emitted (if any) for the hold duration.

PendingKeyState

Pending key state type for history keys. (No pending state.)

Ref

Reference for a history key.

System

The key::System implementation for history keys.

Enums

Key

History key kinds.

Constants

MAX_ADAPTIVE_RULES

Maximum number of { prev, emit } rules stored on one AdaptiveKey.

Functions

adaptive_rules

Builds a fixed-size adaptive rule array from a shorter const list (codegen helper).

alt_repeat_rules

Builds a fixed-size alt-repeat rule array from a shorter const list (codegen helper).

is_rememberable

Whether a resolved key::KeyOutput should become the remembered last output.