PHP's gopher_parsedir in JavaScript

module.exports = functiongopher_parsedir (dirent) { // eslint-disable-line camelcase
//  discuss at: https://locutus.io/php/gopher_parsedir/
// original by: Brett Zamir (https://brett-zamir.me)
//   example 1: var entry = gopher_parsedir('0All about my gopher site.\t/allabout.txt\tgopher.example.com\t70\u000d\u000a')
//   example 1: entry.title
//   returns 1: 'All about my gopher site.'
/* Types
   * 0 = plain text file
   * 1 = directory menu listing
   * 2 = CSO search query
   * 3 = error message
   * 4 = BinHex encoded text file
   * 5 = binary archive file
   * 6 = UUEncoded text file
   * 7 = search engine query
   * 8 = telnet session pointer
   * 9 = binary file
   * g = Graphics file format, primarily a GIF file
   * h = HTML file
   * i = informational message
   * s = Audio file format, primarily a WAV file
   */
const entryPattern = /^(.)([^\t]*)\t([^\t]*)\t([^\t]*)\t([^\t]*)\r\n$/
const entry = dirent.match(entryPattern)
if (entry === null) {
thrownewError('Could not parse the directory entry')
// return false;
  }
let type = entry[1]
switch (type) {
case'i':
// GOPHER_INFO
      type = 255
break
case'1':
// GOPHER_DIRECTORY
      type = 1
break
case'0':
// GOPHER_DOCUMENT
      type = 0
break
case'4':
// GOPHER_BINHEX
      type = 4
break
case'5':
// GOPHER_DOSBINARY
      type = 5
break
case'6':
// GOPHER_UUENCODED
      type = 6
break
case'9':
// GOPHER_BINARY
      type = 9
break
case'h':
// GOPHER_HTTP
      type = 254
break
default:
return {
type: -1,
data: dirent
      } // GOPHER_UNKNOWN
  }
return {
type: type,
title: entry[2],
path: entry[3],
host: entry[4],
port: entry[5]
  }
}