text: /*!
   * is-glob <https://github.com/jonschlinkert/is-glob>
   *
   * Copyright (c) 2014-2016, Jon Schlinkert.
   * Licensed under the MIT License.
   */
  
  var isExtglob = require('is-extglob');
  
  module.exports = function isGlob(str) {
    if (!str || typeof str !== 'string') {
      return false;
    }
  
    if (isExtglob(str)) return true;
    var m, matches = [];
  
    while ((m = /(\\).|([*?]|\[.*\]|\{.*\}|\(.*\|.*\)|^!)/g.exec(str))) {
      if (m[2]) matches.push(m[2]);
      str = str.slice(m.index + m[0].length);
    }
    return matches.length > 0;
  };
  