import type { StringOp, StringOpComponent } from './types';
export declare const append: (op: StringOp, component: StringOpComponent) => void;
export declare const componentLength: (component: StringOpComponent) => number;
export declare const isDeleteComponent: (component: StringOpComponent) => boolean;
export declare const trim: (op: StringOp) => void;
export declare const normalize: (op: StringOp) => StringOp;
/**
 * Extracts a full or a part of a component from an operation.
 *
 * @param component Component from which to extract a chunk.
 * @param offset Position within the component to start from.
 * @param maxLength Maximum length of the component to extract.
 * @returns Full or partial component at index `index` of operation `op`.
 */
export declare const chunk: (component: StringOpComponent, offset: number, maxLength: number) => StringOpComponent;