/**
 * Copyright (c) 2018-2019 Aleksey Melnikov, True Directive Company.
 * @link https://truedirective.com/
 * @license MIT
*/
export declare class NumberFormat {
    prefix: string;
    postfix: string;
    specifier: string;
    signum: boolean;
    intMin: number;
    intMax: number;
    fractionMin: number;
    fractionMax: number;
    static isDigit(char: string): boolean;
    static parseFormat(formatTxt: string): NumberFormat;
}