function AppCode(&$str)
 {
     if ($this->moduleLang == $this->sysLang) {
         return $str;
     } else {
         if ($this->sysLang == 'utf-8') {
             if ($this->moduleLang == 'gbk') {
                 return gb2utf8($str);
             }
             if ($this->moduleLang == 'big5') {
                 return gb2utf8(big52gb($str));
             }
         } else {
             if ($this->sysLang == 'gbk') {
                 if ($this->moduleLang == 'utf-8') {
                     return utf82gb($str);
                 }
                 if ($this->moduleLang == 'big5') {
                     return big52gb($str);
                 }
             } else {
                 if ($this->sysLang == 'big5') {
                     if ($this->moduleLang == 'utf-8') {
                         return gb2big5(utf82gb($str));
                     }
                     if ($this->moduleLang == 'gbk') {
                         return gb2big5($str);
                     }
                 } else {
                     return $str;
                 }
             }
         }
     }
 }
/**
 *  分析RSS里的链接
 *
 * @access    public
 * @param     string  $rssurl  rss地址
 * @return    string
 */
function GetRssLinks($rssurl)
{
    global $cfg_soft_lang;
    $dhd = new DedeHttpDown();
    $dhd->OpenUrl($rssurl);
    $rsshtml = $dhd->GetHtml();
    //分析编码
    preg_match("/encoding=[\"']([^\"']*)[\"']/is", $rsshtml, $infos);
    if (isset($infos[1])) {
        $pcode = strtolower(trim($infos[1]));
    } else {
        $pcode = strtolower($cfg_soft_lang);
    }
    if ($cfg_soft_lang == 'gb2312') {
        if ($pcode == 'utf-8') {
            $rsshtml = utf82gb($rsshtml);
        } else {
            if ($pcode == 'big5') {
                $rsshtml = big52gb($rsshtml);
            }
        }
    } else {
        if ($cfg_soft_lang == 'utf-8') {
            if ($pcode == 'gbk' || $pcode == 'gb2312') {
                $rsshtml = gb2utf8($rsshtml);
            } else {
                if ($pcode == 'big5') {
                    $rsshtml = gb2utf8(big52gb($rsshtml));
                }
            }
        }
    }
    $rsarr = array();
    preg_match_all("/<item(.*)<title>(.*)<\\/title>/isU", $rsshtml, $titles);
    preg_match_all("/<item(.*)<link>(.*)<\\/link>/isU", $rsshtml, $links);
    preg_match_all("/<item(.*)<description>(.*)<\\/description>/isU", $rsshtml, $descriptions);
    if (!isset($links[2])) {
        return '';
    }
    foreach ($links[2] as $k => $v) {
        $rsarr[$k]['link'] = RpCdata($v);
        if (isset($titles[2][$k])) {
            $rsarr[$k]['title'] = RpCdata($titles[2][$k]);
        } else {
            $rsarr[$k]['title'] = preg_replace("/^(.*)\\//i", "", RpCdata($titles[2][$k]));
        }
        if (isset($descriptions[2][$k])) {
            $rsarr[$k]['image'] = GetddImgFromRss($descriptions[2][$k], $rssurl);
        } else {
            $rsarr[$k]['image'] = '';
        }
    }
    return $rsarr;
}
 /**
  *  编码转换
  *
  * @access    public
  * @param     string  $str  字符串
  * @return    string
  */
 function ChangeCode(&$str)
 {
     global $cfg_soft_lang;
     if ($cfg_soft_lang == 'utf-8') {
         if ($this->noteInfos["sourcelang"] == "gb2312") {
             $str = gb2utf8($str);
         }
         if ($this->noteInfos["sourcelang"] == "big5") {
             $str = gb2utf8(big52gb($str));
         }
     } else {
         if ($this->noteInfos["sourcelang"] == "utf-8") {
             $str = utf82gb($str);
         }
         if ($this->noteInfos["sourcelang"] == "big5") {
             $str = big52gb($str);
         }
     }
 }
 function TrimSymbol($str)
 {
   if(strtolower($this->CharSet)=="utf-8"){
   	$str = utf82gb($str);
   }
   else if(strtolower($this->CharSet)=="big5"){
   	$str = big52gb($str);
   }
   else if(!eregi("^gb",$this->CharSet)){
   	$this->NotEncodeText .= $str;
   	return "";
   }
   $str = trim($str);
   $slen = strlen($str);
   if($slen==0) return "";
   $okstr = "";
   for($i=0;$i<$slen;$i++){
     if(ord($str[$i]) < 0x81){
       //当字符为英文中的特殊符号
       if(ereg("[^0-9a-zA-Z@.%#:/\\&-]",$str[$i])){
         if($okstr!=""){ if( $okstr[strlen($okstr)-1]!=" " ) $okstr .= " "; }
       }
       //如果字符为非特殊符号
       else{
         if(strlen($okstr)>1){
           if(ord($okstr[strlen($okstr)-2])>0x80) $okstr .= " ".$str[$i];
           else $okstr .= $str[$i];
         }
         else $okstr .= $str[$i];
       }
     }
     else
     {
       //如果上一个字符为非中文和非空格,则加一个空格
       if(strlen($okstr)>1){
         if(ord($okstr[strlen($okstr)-2]) < 0x81 && $okstr[strlen($okstr)-1]!=" ")
         { $okstr .= " "; }
       }
       //如果中文字符
       if( isset($str[$i+1]) ){
         $c = $str[$i].$str[$i+1];
         $n = hexdec(bin2hex($c));
         if($n < 0xB0A1)
         {
             if($c=="《")
           {  $okstr .= " 《"; }
           else if($c=="》")
           {  $okstr .= "》 "; }
           else if($okstr[strlen($okstr)-1]!=" ")
           {  $okstr .= " ";  }
         }
         else{
           //F7 - FE 是GB2312的终结编码
           if($n < 0xF8FF) $okstr .= $c;
         }
         $i++;
       }
       else{
         $okstr .= $str[$i];
       }
     }
   }//结束循环
   return $okstr;
 }
	function ChangeCode(&$str)
	{
		if($GLOBALS['cfg_ver_lang']=='utf-8'){
		  if($this->Item["language"]=="gb2312") $str = gb2utf8($str);
		  if($this->Item["language"]=="big5") $str = gb2utf8(big52gb($str));
		}else{
			if($this->Item["language"]=="utf-8") $str = utf82gb($str);
		  if($this->Item["language"]=="big5") $str = big52gb($str);
		}
	}