// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
import { normalize as stableNormalize } from "./normalize.ts";
import { fromFileUrl } from "./from_file_url.ts";
/**
* Normalize the `path`, resolving `'..'` and `'.'` segments.
* Note that resolving these segments does not necessarily mean that all will be eliminated.
* A `'..'` at the top-level will be preserved, and an empty path is canonically `'.'`.
*
* @experimental **UNSTABLE**: New API, yet to be vetted.
*
* @example Usage
* ```ts
* import { normalize } from "@std/path/posix/unstable-normalize";
* import { assertEquals } from "@std/assert";
*
* assertEquals(normalize("/foo/bar//baz/asdf/quux/.."), "/foo/bar/baz/asdf");
* assertEquals(normalize(new URL("file:///foo/bar//baz/asdf/quux/..")), "/foo/bar/baz/asdf/");
* ```
*
* @param path The path to normalize. Path can be a string or a file URL object.
* @returns The normalized path.
*/
export function normalize(path: string | URL): string {
path = path instanceof URL ? fromFileUrl(path) : path;
return stableNormalize(path);
}
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