/**
* 验证路由表规则
* @param Void
* @return Void
*/
public function matchs($uri)
{
$matchs = array();
if ($this->routes) {
if ($uri == '') {
//uri为空，则使用默认路由规则(路由规则表最后一项)
return $this->parse(NULL, NULL);
} else {
//遍历路由表规则，如果匹配其中一项，则退出
foreach ($this->routes as $rule) {
//定义正则捕获组名 如:(<action>)-(<category>)=>(?<action>)-(?<category>)
$pattern = preg_replace('/(?<=[(])(?=[<])/', '?', $rule[0]);
//定义正则表达式字符范围 如:(?<action>)-(?<category>) => (?<action>[\w]+)-(?<category>[\w]+)
$pattern = preg_replace('/(?<=[>])(?=[)])/', '[\\w]+', $pattern);
if ($rule[1] && is_array($rule[1])) {
//自定义字符范围
foreach ($rule[1] as $k => $v) {
$pattern = preg_replace('/(?<=(' . $k . ')[>])\\[\\\\w\\]\\+(?=[)])/', $v, $pattern);
}
}
//判断$uri是包含多字节,如果包含,则需要转码
if (!Utf8::isAscii($uri)) {
$uri = iconv('gb2312', 'utf-8', $uri);
}
//将当前路由规格与uri进行匹配
if (preg_match("~^{$pattern}\$~u", $uri, $matchs)) {
//成功匹配,交由Request处理
$default = array();
//默认路由规则
if ($rule[2]) {
$default = $rule[2];
}
return $this->parse($matchs, $default);
break;
}
}
}
}
//所有路由规则匹配失败,抛出异常
if (!$matchs) {
throw new Ada_Exception('Unable to find a route to match');
}
}
