export declare function formatValueByGapRule(gapRule: string, value: string, gap: string | undefined, range: number, isAdd?: number): {
    value: string;
    range: number;
};
export declare function formatValueByGapStep(step: number, value: string, gap: string | undefined, direction: string | undefined, range: number, isAdd?: number, oldValue?: string): {
    value: string;
    range: number;
};
export declare function trimValue(value: string, gap?: string): string;