/**
 * Traversing Query utility to find element via extended selector query
 * Extended query supports
 * - plain CSS selectors
 * - relative selectors (selectors that don't start from a plain selector will use passed base Element as a root)
 * - ::next and ::prev sibling pseudo-selectors
 * - ::parent, ::closest and ::child pseudo-selectors
 * - ::find pseudo-selector
 * - ::first, ::last and :nth(#) limitation pseudo-selectors
 * - ::filter, ::not filtration pseudo-selectors
 *
 * @example
 * - `#id .class [attr]` - find by CSS selector in a current document
 * - ` ` - get current base element
 * - `::next` - get next sibling element
 * - `::prev` - get previous sibling element
 * - `::parent` - get base element parent
 * - `::parent(#id .class [attr])` - find the closest parent matching passed selector
 * - `::closest(#id .class [attr])` - find the closest ancestor including base element that matches passed selector
 * - `::child(#id .class [attr])` - find direct child element(s) that match passed selector
 * - `::find(#id .class [attr])` - find child element(s) that match passed selector
 * - `::find(buttons, a)::not([hidden])` - find all buttons and anchors that are not have hidden attribute
 * - `::find(buttons, a)::filter(:first-child)` - find all buttons and anchors that are first child in container
 * - `::parent::child(some-tag)` - find direct child element(s) that match tag 'some-tag' in the parent
 * - `#id .class [attr]::parent` - find parent of element matching selector '#id .class [attr]' in document
 * - `::find(.row)::last::parent` - find parent of the last element matching selector '.row' from the base element subtree
 */
export declare class ESLTraversingQuery {
    private static ELEMENT_PROCESSORS;
    private static COLLECTION_PROCESSORS;
    /**
     * @returns RegExp that selects all known processors in query string
     * e.g. /(::parent|::closest|::child|::next|::prev)/
     */
    private static get PROCESSORS_REGEX();
    private static isCollectionProcessor;
    private static processElement;
    private static processCollection;
    private static traverseChain;
    /** Split multiple queries separated by comma (respects query brackets) */
    static splitQueries(str: string): string[];
    protected static traverse(query: string, findFirst: boolean, base?: Element | null, scope?: Element | Document): Element[];
    protected static traverseQuery(query: string, findFirst: boolean, base?: Element | null, scope?: Element | Document): Element[];
    /** @returns first matching element reached via {@link ESLTraversingQuery} rules */
    static first(query: string, base?: Element | null, scope?: Element | Document): Element | null;
    /** @returns Array of all matching elements reached via {@link ESLTraversingQuery} rules */
    static all(query: string, base?: Element | null, scope?: Element | Document): Element[];
}
declare global {
    export interface ESLLibrary {
        TraversingQuery: typeof ESLTraversingQuery;
    }
}