* @return If the specified is NULL the function returns NULL. Otherwise the
* function returns the string with whitespace stripped from the end.
*/
* @return If the specified is NULL the function returns NULL. Otherwise the
* function returns the string with whitespace stripped from the end.
*/
* @return If the specified is NULL the function returns NULL. Otherwise the
* function returns the string with whitespace stripped from the beginning.
*/
* @return If the specified is NULL the function returns NULL. Otherwise the
* function returns the string with whitespace stripped from the beginning.
*/
* @return If the specified is NULL the function returns NULL. Otherwise the
* function returns the string with whitespace stripped from the end and the begining.
*/
* @return If the specified is NULL the function returns NULL. Otherwise the
* function returns the string with whitespace stripped from the end and the begining.
*/