Issue 4878 - Start using ESLint for adblockpluscore

lib/common.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 // We are currently limited to ECMAScript 5 in this file, because it is being
 // used in the browser tests. See https://issues.adblockplus.org/ticket/4796
 
 /**
  * Converts filter text into regular expression string
- * @param {String} text as in Filter()
- * @return {String} regular expression representation of filter text
+ * @param {string} text as in Filter()
+ * @return {string} regular expression representation of filter text
  */
 function filterToRegExp(text)
 {
   return text
     // remove multiple wildcards
     .replace(/\*+/g, "*")
     // remove anchors following separator placeholder
     .replace(/\^\|$/, "^")
     // escape special symbols
     .replace(/\W/g, "\\$&")
     // replace wildcards by .*
     .replace(/\\\*/g, ".*")
     // process separator placeholders (all ANSI characters but alphanumeric
     // characters and _%.-)
     .replace(/\\\^/g, "(?:[\\x00-\\x24\\x26-\\x2C\\x2F\\x3A-\\x40\\x5B-\\x5E\\x60\\x7B-\\x7F]|$)")
     // process extended anchor at expression start
     .replace(/^\\\|\\\|/, "^[\\w\\-]+:\\/+(?!\\/)(?:[^\\/]+\\.)?")
     // process anchor at expression start
     .replace(/^\\\|/, "^")
     // process anchor at expression end
     .replace(/\\\|$/, "$")
     // remove leading wildcards
     .replace(/^(\.\*)/, "")
     // remove trailing wildcards
     .replace(/(\.\*)$/, "");
 }
 
 if (typeof exports != "undefined")
   exports.filterToRegExp = filterToRegExp;