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正则瓜分字符

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Release： 2016-06-13 13:06:53
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正则分割字符
字符串是
ul[class=xl xl2 cl] div.test ul[id=test]

我想用空格分割字符，但是[]号里面的空格不要分，单用正则可以实现这个功能吗？比如分之后，结果如下
ul[class=xl xl2 cl]
div.test 
ul[id=test]

如果正则无法实现，其他思路呢？

------解决方案--------------------

PHP code
$s = 'ul[class=xl xl2 cl] div.test sasa ul[id=test]';
preg_match_all('/\w+\[[^]]+]|[^\s]+/', $s, $r);
print_r($r); <div class="clear">
                 
              
              
        
            </div>
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