import { MaxHeightRatio } from '../enum/Common';
export declare const ZERO = "\u200B";
export declare const WRAP = "\n";
export declare const HORIZON_TAB = "\t";
export declare const NBSP = " ";
export declare const NON_BREAKING_SPACE = " ";
export declare const PUNCTUATION_LIST: string[];
export declare const maxHeightRadioMapping: Record<MaxHeightRatio, number>;
export declare const LETTER_CLASS: {
    ENGLISH: string;
    SPANISH: string;
    FRENCH: string;
    GERMAN: string;
    RUSSIAN: string;
    PORTUGUESE: string;
    ITALIAN: string;
    DUTCH: string;
    SWEDISH: string;
    GREEK: string;
};
export declare const METRICS_BASIS_TEXT = "\u4E2D";