CodeIgniter_2 路由中定义伪静态 直接映射到相关的控制器

某些状况下 隐藏路径信息 使用伪静态定义：

RewriteRule ^no/torrent(.*)$ /index.php/torrent/doit/$1

CodeIgniter会自动识别到 no 控制器，可是我其实想识别到 torrent 控制器 

须要对 core\URI.php 文件进行处理下

	/**
	 * Detects the URI
	 *
	 * This function will detect the URI automatically and fix the query string
	 * if necessary.
	 *
	 * @access	private
	 * @return	string
	 */
	private function _detect_uri()
	{
		if ( ! isset($_SERVER['REQUEST_URI']) OR ! isset($_SERVER['SCRIPT_NAME']))
		{
			return '';
		}

		$uri = $_SERVER['REQUEST_URI'];

		//添加的数据 从新定义url
        if(isset($_SERVER['PHP_SELF'])){
	        if($_SERVER['PHP_SELF'] != '' and $_SERVER['PHP_SELF'] != $_SERVER['REQUEST_URI']){
		        $uri = $_SERVER['PHP_SELF'];
		        if(isset($_SERVER['QUERY_STRING']) and $_SERVER['QUERY_STRING'] != ''){
			        $uri = $uri.'?'.$_SERVER['QUERY_STRING'];
		        }
	        }
        }
        //来自 吠品 http://www.cnblogs.com/osfipin/

		
		if (strpos($uri, $_SERVER['SCRIPT_NAME']) === 0)
		{
			$uri = substr($uri, strlen($_SERVER['SCRIPT_NAME']));
		}
		elseif (strpos($uri, dirname($_SERVER['SCRIPT_NAME'])) === 0)
		{
			$uri = substr($uri, strlen(dirname($_SERVER['SCRIPT_NAME'])));
		}

		// more
	}

　　CodeIgniter 3.0 对 这个文件进行了重构。想实现这个需求 貌似也不行，你们能够测试一会儿。