export declare const CHAR_ROUND_BRACKET_OPEN = 40;
export declare const CHAR_ROUND_BRACKET_CLOSE = 41;
export declare const CHAR_COMA = 44;
export declare const CHAR_MINUS = 45;
export declare const CHAR_POINT = 46;
export declare const CHAR_0 = 48;
export declare const CHAR_9 = 58;
export declare function isDigit(char: number): boolean;