腾讯QQ微博API接口获取微博内容(5)

protected function match($exp, $pattern, $value) {
        switch ($exp) {
            case '=':
                return ($value===$pattern);
            case '!=':
                return ($value!==$pattern);
            case '^=':
                return preg_match("/^".preg_quote($pattern,'https://www.jb51.net/')."https://www.jb51.net/", $value);
            case '$=':
                return preg_match("https://www.jb51.net/".preg_quote($pattern,'https://www.jb51.net/')."$/", $value);
            case '*=':
                if ($pattern[0]=='https://www.jb51.net/')
                    return preg_match($pattern, $value);
                return preg_match("https://www.jb51.net/".$pattern."/i", $value);
        }
        return false;
    }

protected function parse_selector($selector_string) {
        // pattern of CSS selectors, modified from mootools
        $pattern = "/([\w-:\*]*)(?:\#([\w-]+)|\.([\w-]+))?(?:\[@?(!?[\w-]+)(?:([!*^$]?=)[\"']?(.*?)[\"']?)?\])?([\/, ]+)/is";
        preg_match_all($pattern, trim($selector_string).' ', $matches, PREG_SET_ORDER);
        $selectors = array();
        $result = array();
        //print_r($matches);

foreach ($matches as $m) {
            $m[0] = trim($m[0]);
            if ($m[0]==='' || $m[0]==='https://www.jb51.net/' || $m[0]==='//') continue;
            // for borwser grnreated xpath
            if ($m[1]==='tbody') continue;

list($tag, $key, $val, $exp, $no_key) = array($m[1], null, null, '=', false);
            if(!empty($m[2])) {$key='id'; $val=$m[2];}
            if(!empty($m[3])) {$key='class'; $val=$m[3];}
            if(!empty($m[4])) {$key=$m[4];}
            if(!empty($m[5])) {$exp=$m[5];}
            if(!empty($m[6])) {$val=$m[6];}

// convert to lowercase
            if ($this->dom->lowercase) {$tag=strtolower($tag); $key=strtolower($key);}
            //elements that do NOT have the specified attribute
            if (isset($key[0]) && $key[0]==='!') {$key=substr($key, 1); $no_key=true;}