import * as i0 from "@angular/core";
/**
 * A service that holds the functionality for advanced handling of regular expressions
 */
export declare class RegexpService {
    constructor();
    private removeOuterRoundBrackets;
    private isQuantifier;
    private parseMinimalAmountOfQuantifier;
    private sliceRegexByOr;
    private sliceRegexByThen;
    suggestion(beginning: string, regularExpressionString: string): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<RegexpService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<RegexpService>;
}