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// Copyright Joyent, Inc. and other Node contributors.//// Permission is hereby granted, free of charge, to any person obtaining a// copy of this software and associated documentation files (the// "Software"), to deal in the Software without restriction, including// without limitation the rights to use, copy, modify, merge, publish,// distribute, sublicense, and/or sell copies of the Software, and to permit// persons to whom the Software is furnished to do so, subject to the// following conditions://// The above copyright notice and this permission notice shall be included// in all copies or substantial portions of the Software.//// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE// USE OR OTHER DEALINGS IN THE SOFTWARE.
import {  CHAR_BACKWARD_SLASH,  CHAR_FORWARD_SLASH,  CHAR_LOWERCASE_A,  CHAR_LOWERCASE_Z,} from "../path/_constants.ts";import * as path from "./path.ts";import { isWindows } from "../_util/os.ts";
const forwardSlashRegEx = /\//g;const percentRegEx = /%/g;const backslashRegEx = /\\/g;const newlineRegEx = /\n/g;const carriageReturnRegEx = /\r/g;const tabRegEx = /\t/g;
const _url = URL;export { _url as URL };
/** * Get fully resolved platform-specific file path from the given URL string/ object * @param path The file URL string or URL object to convert to a path */export function fileURLToPath(path: string | URL): string {  if (typeof path === "string") path = new URL(path);  else if (!(path instanceof URL)) {    throw new Deno.errors.InvalidData(      "invalid argument path , must be a string or URL",    );  }  if (path.protocol !== "file:") {    throw new Deno.errors.InvalidData("invalid url scheme");  }  return isWindows ? getPathFromURLWin(path) : getPathFromURLPosix(path);}
function getPathFromURLWin(url: URL): string {  const hostname = url.hostname;  let pathname = url.pathname;  for (let n = 0; n < pathname.length; n++) {    if (pathname[n] === "%") {      const third = pathname.codePointAt(n + 2) || 0x20;      if (        (pathname[n + 1] === "2" && third === 102) || // 2f 2F /        (pathname[n + 1] === "5" && third === 99)      ) {        // 5c 5C \        throw new Deno.errors.InvalidData(          "must not include encoded \\ or / characters",        );      }    }  }
  pathname = pathname.replace(forwardSlashRegEx, "\\");  pathname = decodeURIComponent(pathname);  if (hostname !== "") {    //TODO add support for punycode encodings    return `\\\\${hostname}${pathname}`;  } else {    // Otherwise, it's a local path that requires a drive letter    const letter = pathname.codePointAt(1)! | 0x20;    const sep = pathname[2];    if (      letter < CHAR_LOWERCASE_A ||      letter > CHAR_LOWERCASE_Z || // a..z A..Z      sep !== ":"    ) {      throw new Deno.errors.InvalidData("file url path must be absolute");    }    return pathname.slice(1);  }}
function getPathFromURLPosix(url: URL): string {  if (url.hostname !== "") {    throw new Deno.errors.InvalidData("invalid file url hostname");  }  const pathname = url.pathname;  for (let n = 0; n < pathname.length; n++) {    if (pathname[n] === "%") {      const third = pathname.codePointAt(n + 2) || 0x20;      if (pathname[n + 1] === "2" && third === 102) {        throw new Deno.errors.InvalidData(          "must not include encoded / characters",        );      }    }  }  return decodeURIComponent(pathname);}
/** Get fully resolved platform-specific File URL from the given file path */export function pathToFileURL(filepath: string): URL {  let resolved = path.resolve(filepath);  // path.resolve strips trailing slashes so we must add them back  const filePathLast = filepath.charCodeAt(filepath.length - 1);  if (    (filePathLast === CHAR_FORWARD_SLASH ||      (isWindows && filePathLast === CHAR_BACKWARD_SLASH)) &&    resolved[resolved.length - 1] !== path.sep  ) {    resolved += "/";  }  const outURL = new URL("file://");  if (resolved.includes("%")) resolved = resolved.replace(percentRegEx, "%25");  // In posix, "/" is a valid character in paths  if (!isWindows && resolved.includes("\\")) {    resolved = resolved.replace(backslashRegEx, "%5C");  }  if (resolved.includes("\n")) resolved = resolved.replace(newlineRegEx, "%0A");  if (resolved.includes("\r")) {    resolved = resolved.replace(carriageReturnRegEx, "%0D");  }  if (resolved.includes("\t")) resolved = resolved.replace(tabRegEx, "%09");  outURL.pathname = resolved;  return outURL;}
export default {  fileURLToPath,  pathToFileURL,  URL,};