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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
import { assertArg } from "../_common/normalize.ts";import { normalizeString } from "../_common/normalize_string.ts";import { isPosixPathSeparator } from "./_util.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 `'.'`. * @param path to be normalized */export function normalize(path: string): string {  assertArg(path);
  const isAbsolute = isPosixPathSeparator(path.charCodeAt(0));  const trailingSeparator = isPosixPathSeparator(    path.charCodeAt(path.length - 1),  );
  // Normalize the path  path = normalizeString(path, !isAbsolute, "/", isPosixPathSeparator);
  if (path.length === 0 && !isAbsolute) path = ".";  if (path.length > 0 && trailingSeparator) path += "/";
  if (isAbsolute) return `/${path}`;  return path;}