HORIZON PROJECT

var baseToString = require('./_baseToString'),

    castSlice = require('./_castSlice'),

    hasUnicode = require('./_hasUnicode'),

    isIterateeCall = require('./_isIterateeCall'),

    isRegExp = require('./isRegExp'),

    stringToArray = require('./_stringToArray'),

    toString = require('./toString');

/** Used as references for the maximum length and index of an array. */

var MAX_ARRAY_LENGTH = 4294967295;

/**

 * Splits `string` by `separator`.

 *

 * **Note:** This method is based on

 * [`String#split`](https://mdn.io/String/split).

 *

 * @static

 * @memberOf _

 * @since 4.0.0

 * @category String

 * @param {string} [string=''] The string to split.

 * @param {RegExp|string} separator The separator pattern to split by.

 * @param {number} [limit] The length to truncate results to.

 * @returns {Array} Returns the string segments.

 * @example

 *

 * _.split('a-b-c', '-', 2);

 * // => ['a', 'b']

 */

function split(string, separator, limit) {

  if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {

    separator = limit = undefined;

  }

  limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;

  if (!limit) {

    return [];

  }

  string = toString(string);

  if (string && (

        typeof separator == 'string' ||

        (separator != null && !isRegExp(separator))

      )) {

    separator = baseToString(separator);

    if (!separator && hasUnicode(string)) {

      return castSlice(stringToArray(string), 0, limit);

    }

  }

  return string.split(separator, limit);

}

module.exports = split;