code: public function replace($strBuffer, $blnCache=true)
  	{
  		$strBuffer = $this->doReplace($strBuffer, $blnCache);
  
  		// Run the replacement recursively (see #8172)
  		while (strpos($strBuffer, '{{') !== false && ($strTmp = $this->doReplace($strBuffer, $blnCache)) != $strBuffer)
  		{
  			$strBuffer = $strTmp;
  		}
  
  		return $strBuffer;
  	}
docs: Recursively replace insert tags with their values
  
  @param string  $strBuffer The text with the tags to be replaced
  @param boolean $blnCache  If false, non-cacheable tags will be replaced
  
  @return string The text with the replaced tags