export declare function YXToNumPair(YX: string): [number, number] | null;
export declare function YToNum(Y: string): number | null;
export declare function XToNum(X: string): number | null;
export declare function numToY(num: number): string | null;
export declare function numToX(num: number): string | null;
export declare const regex: {
    YRegex: RegExp;
    XRegex: RegExp;
    YXRegex: RegExp;
}