/**
 * lodash 3.0.2 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var baseToString = require('lodash._basetostring'),
    isIterateeCall = require('lodash._isiterateecall');

/** Used to match words to create compound words. */
var reWords = (function() {
  var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]',
      lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+';

  return RegExp(upper + '+(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g');
}());

/**
 * Splits `string` into an array of its words.
 *
 * @static
 * @memberOf _
 * @category String
 * @param {string} [string=''] The string to inspect.
 * @param {RegExp|string} [pattern] The pattern to match words.
 * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
 * @returns {Array} Returns the words of `string`.
 * @example
 *
 * _.words('fred, barney, & pebbles');
 * // => ['fred', 'barney', 'pebbles']
 *
 * _.words('fred, barney, & pebbles', /[^, ]+/g);
 * // => ['fred', 'barney', '&', 'pebbles']
 */
function words(string, pattern, guard) {
  if (guard && isIterateeCall(string, pattern, guard)) {
    pattern = undefined;
  }
  string = baseToString(string);
  return string.match(pattern || reWords) || [];
}

module.exports = words;