export type CharCode = number | [start: number, end: number];
export declare const CharCodes: {
    tab: number;
    newline: number;
    space: number;
    relevantChars: [number, number];
    underscore: number;
    lettersUpper: [number, number];
    lettersLower: [number, number];
    numbers: [number, number];
};
export declare const defaultWordChars: CharCode[];
export declare const defaultNumberChars: CharCode[];
export declare const defaultValidChars: CharCode[];
export declare function matchCharCodes(input: number, ...nrRanges: CharCode[]): boolean;