declare const join: (...paths: string[]) => string;
declare const normalize: (path: string) => string;
declare const relative: (from: string, to: string) => string;
declare const resolve: (...paths: string[]) => string;
/**
 * Sanitize a file name by removing invalid characters and normalizing the format.
 *
 * - Directory traversal sequences (`./`, `../`) are replaced with a space.
 * - Invalid characters {@link invalidPattern} are replaced with a space.
 * - Consecutive whitespace is replaced with a single space.
 * - Consecutive dots are replaced with a single dot.
 * - Whitespace around dots is removed.
 * - Leading and trailing whitespace is removed.
 * - Trailing dots are discarded.
 * - Empty filenames return `_` (underscore).
 *
 * ## Note:
 * Reserved Windows filenames (e.g. `CON`, `PRN`, `AUX`, `NUL`, `COM1`, etc.) are prefixed with an underscore. (e.g. `_CON`)
 * This is to avoid conflicts with reserved names in Windows.
 *
 * @param dirname - The file name to sanitize.
 * @param invalidPattern - A regex pattern or string to match invalid characters. Defaults /[^\w!#$%&'*+,\-;=@[\]^`{}~.]/g
 */
declare function sanitizeFileName(dirname: string, invalidPattern?: string | RegExp): string;

export { join, normalize, relative, resolve, sanitizeFileName };