| This module is licensed under the BSD license. | 
 |  | 
 | Copyright (C) 2014 by Weibin Yao <yaoweibin@gmail.com>. | 
 |  | 
 | All rights reserved. | 
 |  | 
 | Redistribution and use in source and binary forms, with or without | 
 | modification, are permitted provided that the following conditions | 
 | are met: | 
 |  | 
 |  * Redistributions of source code must retain the above copyright | 
 |    notice, this list of conditions and the following disclaimer. | 
 |  | 
 |  * Redistributions in binary form must reproduce the above copyright | 
 |    notice, this list of conditions and the following disclaimer in the | 
 |    documentation and/or other materials provided with the distribution. | 
 |  | 
 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | 
 | IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | 
 | TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | 
 | PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 
 | HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 
 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED | 
 | TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 
 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | 
 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | 
 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | 
 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |