import type { MaskOptions } from './types';
/**
 * * Replaces all occurrences of a string or pattern in the given input string.
 *
 * - If `find` is a string, it is converted into a global regular expression (`/find/g`).
 * - If `find` is a `RegExp`, the global (`g`) flag is ensured.
 * - Trims the input before performing replacements.
 *
 * @param input - The string in which replacements should be performed.
 * @param find - The substring or regex pattern to search for.
 * @param replace - The string to replace matches with.
 * @returns The modified/refined string with replacements applied.
 */
export declare const replaceAllInString: (input: string, find: string | RegExp, replace: string) => string;
/**
 * * Converts a string into a URL-friendly slug.
 * @param input - The string to be converted.
 * @returns The slugified string.
 */
export declare const slugifyString: (input: string) => string;
/**
 * * Masks part of a string for privacy.
 * @param input - The string to mask.
 * @param options - Options for masking a string.
 * @returns The masked string.
 */
export declare const maskString: (input: string, options?: MaskOptions) => string;
/**
 * * Reverses a given string.
 * @param input - The string to reverse.
 * @returns The reversed string.
 */
export declare const reverseString: (input: string) => string;
/**
 * * Normalizes a string by removing diacritics (accents).
 * @param str The input string.
 * @returns The normalized string.
 */
export declare function normalizeString(str: string): string;
/**
 * * Extracts all email addresses from a string.
 * @param str The input string.
 * @returns An array of extracted email addresses.
 */
export declare function extractEmails(str: string): string[];
/**
 * * Extracts all URLs from a string.
 * @param str The input string.
 * @returns An array of extracted URLs.
 */
export declare function extractURLs(str: string): string[];
/**
 * * Returns a grammatically correct unit string, optionally prefixed with the number.
 *
 * @remarks For complex and versatile pluralization, please refer to {@link https://toolbox.nazmul-nhb.dev/docs/utilities/string/pluralizer pluralizer} or {@link https://toolbox.nazmul-nhb.dev/docs/classes/Pluralizer Pluralizer Class} instead.
 *
 * @param count The numeric value to determine singular or plural.
 * @param unit The unit name (e.g., "day", "hour").
 * @param withNumber Whether to prefix the count before the unit. Defaults to `true`.
 * @returns Formatted unit string like `"1 day"`, `"2 months"`, or `"hour"`.
 */
export declare function formatUnitWithPlural(count: number, unit: string, withNumber?: boolean): string;