/**
 * @module mapping
 */
export declare const GB2312_MAPPING: Map<string, number>;
export declare const SHIFT_JIS_MAPPING: Map<string, number>;
export declare const NUMERIC_CHARACTERS = '0123456789';
export declare const NUMERIC_MAPPING: Map<string, number>;
export declare const ALPHANUMERIC_CHARACTERS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:';
export declare const ALPHANUMERIC_MAPPING: Map<string, number>;