private function transformFormat($strFormat)
	{
		$arrFormatTokens = str_split($strFormat);
		
		foreach ($arrFormatTokens as $i => $token)
		{
			if (ctype_alpha($token))
			{
				$arrFormatTokens[$i] = $this->arrMapping[$token];
			}
		}
		
		return implode('', $arrFormatTokens);
	}