/**
 * formats a given numberic value to string
 */
export default interface Formatter {
    /**
     * if the formatter changes the display sign
     *
     * this is useful if we want to display a range
     * passing [-10, -5] to negate would result in ['10', '5'] and result in
     * "10–5" so if negates is true we would need to rearange it to [max, min]
     */
    negates: boolean;
    /**
     * RegExp to match the value in the formatted string
     */
    regexp: string;
    /**
     *
     * @param n
     */
    format(n: number): string;
    /**
     * inverse of #format
     * @param s returnval from #format()
     */
    inverse(s: string): number;
}