1/* 2MIT License 3 4Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com) 5 6Permission is hereby granted, free of charge, to any person obtaining a copy of 7this software and associated documentation files (the "Software"), to deal in 8the Software without restriction, including without limitation the rights to 9use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 10of the Software, and to permit persons to whom the Software is furnished to do 11so, subject to the following conditions: 12 13The above copyright notice and this permission notice shall be included in all 14copies or substantial portions of the Software. 15 16THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22SOFTWARE. 23*/ 24 25'use strict'; 26 27module.exports = function(flag, argv) { 28 argv = argv || process.argv; 29 30 var terminatorPos = argv.indexOf('--'); 31 var prefix = /^-{1,2}/.test(flag) ? '' : '--'; 32 var pos = argv.indexOf(prefix + flag); 33 34 return pos !== -1 && (terminatorPos === -1 ? true : pos < terminatorPos); 35}; 36