import type { SlugifyOptions } from "../types.js";
/**
 * Convert strings to URL-friendly slugs with customizable options.
 * This is an enhanced utility beyond standard Lodash.
 *
 * @param string - The string to slugify
 * @param options - The slugify options
 * @returns Returns the slugified string
 *
 * @example
 * slugify('Hello World!');
 * // => 'hello-world'
 *
 * slugify('Café & Restaurant', { replacement: '_', lower: false });
 * // => 'Cafe_Restaurant'
 *
 * slugify('  Multiple   Spaces  ', { strict: true });
 * // => 'multiple-spaces'
 */
export declare function slugify(string?: string, options?: SlugifyOptions): string;
/**
 * Truncate text by word count instead of characters.
 * This is an enhanced utility beyond standard Lodash.
 *
 * @param string - The string to truncate
 * @param maxWords - Maximum number of words
 * @param omission - The string to indicate text is omitted
 * @returns Returns the truncated string
 *
 * @example
 * truncateWords('The quick brown fox jumps over the lazy dog', 5);
 * // => 'The quick brown fox jumps...'
 *
 * truncateWords('Hello world', 5);
 * // => 'Hello world'
 *
 * truncateWords('One two three four five six', 3, ' [more...]');
 * // => 'One two three [more...]'
 */
export declare function truncateWords(string?: string, maxWords?: number, omission?: string): string;
/**
 * Truncates string if it's longer than the given maximum string length.
 * The last characters of the truncated string are replaced with the omission string which defaults to "...".
 *
 * @param string - The string to truncate
 * @param options - The options object
 * @returns Returns the truncated string
 *
 * @example
 * truncate('hi-diddly-ho there, neighborino');
 * // => 'hi-diddly-ho there, neighbo...'
 *
 * truncate('hi-diddly-ho there, neighborino', {
 *   'length': 24,
 *   'separator': ' '
 * });
 * // => 'hi-diddly-ho there,...'
 *
 * truncate('hi-diddly-ho there, neighborino', {
 *   'length': 24,
 *   'separator': /,? +/
 * });
 * // => 'hi-diddly-ho there...'
 *
 * truncate('hi-diddly-ho there, neighborino', {
 *   'omission': ' [...]'
 * });
 * // => 'hi-diddly-ho there, neig [...]'
 */
export declare function truncate(string?: string, options?: {
    length?: number;
    omission?: string;
    separator?: string | RegExp;
}): string;
/**
 * Removes leading and trailing whitespace or specified characters from string.
 *
 * @param string - The string to trim
 * @param chars - The characters to trim
 * @returns Returns the trimmed string
 *
 * @example
 * trim('  abc  ');
 * // => 'abc'
 *
 * trim('-_-abc-_-', '_-');
 * // => 'abc'
 */
export declare function trim(string?: string, chars?: string): string;
/**
 * Removes trailing whitespace or specified characters from string.
 *
 * @param string - The string to trim
 * @param chars - The characters to trim
 * @returns Returns the trimmed string
 *
 * @example
 * trimEnd('  abc  ');
 * // => '  abc'
 *
 * trimEnd('-_-abc-_-', '_-');
 * // => '-_-abc'
 */
export declare function trimEnd(string?: string, chars?: string): string;
/**
 * Removes leading whitespace or specified characters from string.
 *
 * @param string - The string to trim
 * @param chars - The characters to trim
 * @returns Returns the trimmed string
 *
 * @example
 * trimStart('  abc  ');
 * // => 'abc  '
 *
 * trimStart('-_-abc-_-', '_-');
 * // => 'abc-_-'
 */
export declare function trimStart(string?: string, chars?: string): string;
/**
 * The inverse of `escape`; this method converts the HTML entities
 * `&`, `<`, `>`, `"`, and `'` in `string` to
 * their corresponding characters.
 *
 * @param string - The string to unescape
 * @returns Returns the unescaped string
 *
 * @example
 * unescape('fred, barney, & pebbles');
 * // => 'fred, barney, & pebbles'
 */
export declare function unescape(string?: string): string;