import type { ElementNode, NabiDoc } from '../schema/index.js';
import { type EditEnv } from '../doc/index.js';
import { type ArmedState, type Selection } from '../caret/index.js';
import type { Registry, Wing } from '../wing/index.js';
export interface PressEnv {
    readonly doc: NabiDoc;
    readonly sel: Selection;
    readonly env: EditEnv;
    readonly registry: Registry;
    readonly armed?: ArmedState;
}
export interface Pressed {
    readonly on: boolean;
    readonly value?: string;
}
export declare function hasToken(value: string | undefined, token: string): boolean;
export declare function ownedAncestors(doc: NabiDoc, path: readonly number[], wing: Wing, registry: Registry): readonly ElementNode[];
export declare function ownedAncestor(doc: NabiDoc, path: readonly number[], wing: Wing, registry: Registry): ElementNode | null;
export declare function stackValue(candidates: readonly ElementNode[], wing: Wing): string | undefined;
export declare function aimNode(candidates: readonly ElementNode[], wing: Wing): ElementNode | null;
export declare function pressedOf(env: PressEnv, w: string): Pressed;
export declare function pressedValue(env: PressEnv, w: string, value: string | number): boolean;
export declare function controlValueOf(node: ElementNode, stack: string | undefined, attr?: string): string | undefined;
export declare function markNode(w: string): ElementNode;
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