import { Range } from './Range';
export declare const Constants: {
    LETTERS: string;
    LETTERS_AND_DIACRITICS: string;
    LETTERS_DIGITS_AND_DIACRITICS: string;
    DIACRITICS: string;
    DIGITS: string;
    IGNORABLE_SYMBOLS: string;
};
export declare const Ranges: {
    LETTERS: Range;
    LETTERS_AND_DIACRITICS: Range;
    LETTERS_DIGITS_AND_DIACRITICS: Range;
    DIACRITICS: Range;
    DIGITS: Range;
    IGNORABLE_SYMBOLS: Range;
};
export declare const Patterns: {
    MATCH_LETTER: string;
    MATCH_IGNORABLE_SYMBOLS: string;
};
export declare function createRegExp(pattern: string, flags?: string): RegExp;
export declare function replaceNotMatching(pattern: string, replaceValue: string, text: string): string;
/**
 * Trims the text from all codepoints out of given range.
 *
 * @param text
 * @param range
 */
export declare function trim(text: string, range: Range): string;