text: /*jslint browser: true, devel: true, node: true, ass: true, nomen: true, unparam: true, indent: 4 */
  
  /**
   * @license
   * Copyright (c) 2015 The ExpandJS authors. All rights reserved.
   * This code may only be used under the BSD style license found at https://expandjs.github.io/LICENSE.txt
   * The complete set of authors may be found at https://expandjs.github.io/AUTHORS.txt
   * The complete set of contributors may be found at https://expandjs.github.io/CONTRIBUTORS.txt
   */
  (function () {
      "use strict";
  
      /**
       * The snake case validation regex.
       *
       * @object snakeCaseRegex
       */
      module.exports = /^([a-z](?![\d])|[\d](?![a-z]))+(_?([a-z](?![\d])|[\d](?![a-z])))*$|^$/;
  
  }());