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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
import { normalizeString } from "../_common/normalize_string.ts";import { assertPath } from "../_common/assert_path.ts";import { isPosixPathSeparator } from "./_util.ts";
/** * Resolves path segments into a `path` * @param pathSegments to process to path */export function resolve(...pathSegments: string[]): string {  let resolvedPath = "";  let resolvedAbsolute = false;
  for (let i = pathSegments.length - 1; i >= -1 && !resolvedAbsolute; i--) {    let path: string;
    if (i >= 0) path = pathSegments[i]!;    else {      // deno-lint-ignore no-explicit-any      const { Deno } = globalThis as any;      if (typeof Deno?.cwd !== "function") {        throw new TypeError("Resolved a relative path without a CWD.");      }      path = Deno.cwd();    }
    assertPath(path);
    // Skip empty entries    if (path.length === 0) {      continue;    }
    resolvedPath = `${path}/${resolvedPath}`;    resolvedAbsolute = isPosixPathSeparator(path.charCodeAt(0));  }
  // At this point the path should be resolved to a full absolute path, but  // handle relative paths to be safe (might happen when Deno.cwd() fails)
  // Normalize the path  resolvedPath = normalizeString(    resolvedPath,    !resolvedAbsolute,    "/",    isPosixPathSeparator,  );
  if (resolvedAbsolute) {    if (resolvedPath.length > 0) return `/${resolvedPath}`;    else return "/";  } else if (resolvedPath.length > 0) return resolvedPath;  else return ".";}