import { normalizeString } from "../_common/normalize_string.ts";import { assertPath } from "../_common/assert_path.ts";import { isPosixPathSeparator } from "./_util.ts";
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 { 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);
if (path.length === 0) { continue; }
resolvedPath = `${path}/${resolvedPath}`; resolvedAbsolute = isPosixPathSeparator(path.charCodeAt(0)); }
resolvedPath = normalizeString( resolvedPath, !resolvedAbsolute, "/", isPosixPathSeparator, );
if (resolvedAbsolute) { if (resolvedPath.length > 0) return `/${resolvedPath}`; else return "/"; } else if (resolvedPath.length > 0) return resolvedPath; else return ".";}