/**
 * @license
 * Copyright The Closure Library Authors.
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * @fileoverview Utilities for dealing with POSIX path strings. Based on
 * Python's os.path and posixpath.
 */
/**
 * Returns the final component of a pathname.
 * See http://docs.python.org/library/os.path.html#os.path.basename
 * @param {string} path A pathname.
 * @return {string} path The final component of a pathname, i.e. everything
 *     after the final slash.
 */
export function baseName(path: string): string;
/**
 * Alias to goog_strings.path.baseNameVar.
 * @param {string} path A pathname.
 * @return {string} path The final component of a pathname.
 * @deprecated Use goog_strings.path.baseNameVar.
 */
export function basename(path: string): string;
/**
 * Returns the directory component of a pathname.
 * See http://docs.python.org/library/os.path.html#os.path.dirname
 * @param {string} path A pathname.
 * @return {string} The directory component of a pathname, i.e. everything
 *     leading up to the final slash.
 */
export function dirname(path: string): string;
/**
 * Extracts the extension part of a pathname.
 * @param {string} path The path name to process.
 * @return {string} The extension if any, otherwise the empty string.
 */
export function extension(path: string): string;
/**
 * Joins one or more path components (e.g. 'foo/' and 'bar' make 'foo/bar').
 * An absolute component will discard all previous component.
 * See http://docs.python.org/library/os.path.html#os.path.join
 * @param {...(string|undefined)} var_args One of more path components.
 * @return {string} The path components joined.
 */
export function join(...args: (string | undefined)[]): string;
/**
 * Normalizes a pathname by collapsing duplicate separators, parent directory
 * references ('..'), and current directory references ('.').
 * See http://docs.python.org/library/os.path.html#os.path.normpath
 * @param {string} path One or more path components.
 * @return {string} The path after normalization.
 */
export function normalizePath(path: string): string;
/**
 * Splits a pathname into "dirname" and "baseName" components, where "baseName"
 * is everything after the final slash. Either part may return an empty string.
 * See http://docs.python.org/library/os.path.html#os.path.split
 * @param {string} path A pathname.
 * @return {!Array<string>} An array of [dirname, basename].
 */
export function split(path: string): Array<string>;