/**
 * Simple Class Helper: making class management more convenient, more clean, more easy
 * Api Draft
 * import { createBemHelper } from './classHelper';
 * const helper = createBemHelper({
 *   prefix: 'ohu-',
 *   elementJoin: '__',
 *   modifierJoin: '--',
 * });
 * // BlockContext
 * let btnClass = helper.block('button'); // ['ohu-button']
 * btnClass.is('active'); // ['ohu-button', 'is-active']
 * btnClass.isNot('active'); // ['ohu-button']
 * btnClass.has('icon'); // ['ohu-button', 'has-icon']
 * btnClass.without('icon'); // ['ohu-button']
 * btnClass.modifer('mixed'); // ['ohu-button', 'ohu-button--mixed']
 * btnClass.noModifer('mixed'); // ['ohu-button']
 * // bulk add and remove
 * btnClass.is('active', 'disabled'); // ['ohu-button', 'is-active', 'is-disabled']
 * btnClass.isNot('active', 'disable'); // ['ohu-button']
 * btnClass.has(['icon', 'text']); // ['ohu-button', 'has-icon', 'has-text']
 * btnClass.without(['icon', 'text']); // ['ohu-button']
 * btnClass.is({'loading': true, 'active': false});
 * // element
 * let btnIconClass = btnClass.element('icon'); // ['ohu-button__icon']
 * // block
 * let btnBlockClass = btnClass.block('icon'); // ['ohu-button-icon']
 */
export interface BemHelperOptions {
    prefix?: string;
    elementJoin?: string | ClassTransformFunc;
    modifierJoin?: string | ClassTransformFunc;
    blockJoin?: string | ClassTransformFunc;
    isJoin?: string | ClassTransformFunc;
    hasJoin?: string | ClassTransformFunc;
    noJoin?: string | ClassTransformFunc;
}
export interface CreateBemHelper {
    block(name: string): BlockContext;
}
export type ClassOptions = any[] | Record<string, boolean> | string | false;
type ClassTransformFunc = (...classItem: string[]) => string;
export declare class BlockContext extends Array<string> {
    private rootName;
    private options?;
    baseName: string;
    private isJoinTransform;
    private noJoinTransform;
    private hasJoinTransform;
    private blockJoinTransform;
    private modiferJoinTransform;
    private elementJoinTransform;
    constructor(rootName: string, options?: BemHelperOptions | undefined);
    private addClassItem;
    private removeClassItem;
    addClasses(options?: ClassOptions, transformClass?: ClassTransformFunc): this;
    removeClasses(options?: ClassOptions, transformClass?: ClassTransformFunc): this;
    is(options?: ClassOptions | string, ...items: string[]): this;
    isNot(options?: ClassOptions | string, ...items: string[]): this;
    no(options?: ClassOptions | string, ...items: string[]): this;
    has(options?: ClassOptions | string, ...items: string[]): this;
    without(options?: ClassOptions | string, ...items: string[]): this;
    modifer(options?: ClassOptions | string, ...items: string[]): this;
    noModifer(options?: ClassOptions | string, ...items: string[]): this;
    element(name: string): BlockContext;
    block(name: string): BlockContext;
}
export declare function createBemHelper(options?: BemHelperOptions): CreateBemHelper;
export {};