lodash/lodash._trimmedrightindex/index.js

/**
 * lodash 3.0.0 (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 1.7.0 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a
 * character code is whitespace.
 *
 * @private
 * @param {number} charCode The character code to inspect.
 * @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`.
 */
function isSpace(charCode) {
  return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 ||
    (charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279)));
}

/**
 * Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace
 * character of `string`.
 *
 * @private
 * @param {string} string The string to inspect.
 * @returns {number} Returns the index of the last non-whitespace character.
 */
function trimmedRightIndex(string) {
  var index = string.length;

  while (index-- && isSpace(string.charCodeAt(index))) {}
  return index;
}

module.exports = trimmedRightIndex;