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L8.php
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L8.php
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<?php
/**
* Launching Framework Main Class
*
* @copyright Copyright (c) 2012 Typecho Team. (http://typecho.org)
* @author Joyqi <magike.net@gmail.com>
* @license GNU General Public License 2.0
*/
class L8
{
/**
* _params
*
* @var array
* @access priate
*/
private static $_params = array();
/**
* 已经注入的对象池
*
* @var array
* @access private
*/
private static $_injectedObjectsPool = array();
/**
* 挂起的注入对象栈, 用于解决交叉依赖的问题
*
* @var array
* @access private
*/
private static $_holdingObjectsStack = array();
/**
* _injectiveObjects
*
* @var array
* @access private
*/
private static $_injectiveObjects = array();
/**
* 已经注入的属性
*
* @var array
*/
private $_injectedProperties = array();
/**
* __construct
*
* @access public
*/
public function __construct()
{
// 使用链式注入初始化对象
$this->initChainedClass();
// 将init作为实际的初始化方法, __construct方法保留
if (method_exists($this, 'init')) {
$args = func_get_args();
call_user_func_array(array($this, 'init'), $args);
}
}
/**
* 链式注入
*
* @access private
* @return void
*/
private function initChainedClass()
{
$class = new ReflectionClass($this);
$shared = self::$_injectiveObjects;
do {
$this->injectProperties($class, $shared);
$class = $class->getParentClass();
} while (!empty($class) && 'L8' != $class->getName());
}
/**
* 根据给出类获取可以注入的属性列表
*
* @param ReflectionClass $class 可以是对象也可以是类名
* @param array $shared
* @throws Exception
*/
private function injectProperties(ReflectionClass $class, array $shared)
{
$props = $this->getAvailableProperties($class);
// 检查属性是否可以注入
foreach ($props as $name => $prop) {
if (isset($shared[$name])) {
// 首先检测交叉依赖
if (in_array($name, self::$_holdingObjectsStack)) {
throw new Exception('Cross dependencies found in ' . $name);
}
// 写入对象池
if (!isset(self::$_injectedObjectsPool[$name])) {
self::$_holdingObjectsStack[] = $name;
self::$_injectedObjectsPool[$name] = $this->createInstance($shared[$name]);
self::$_holdingObjectsStack = array_slice(self::$_holdingObjectsStack, 0, -1);
}
$prop->setAccessible(true);
$prop->setValue($this, self::$_injectedObjectsPool[$name]);
}
}
}
/**
* getAvailableProperties
*
* @param ReflectionClass $class
* @access private
* @return array
*/
private function getAvailableProperties(ReflectionClass $class)
{
$props = $class->getProperties();
$result = array();
foreach ($props as $prop) {
$name = $prop->getName();
if ($prop->isDefault() && 0 !== strpos($name, '_')
&& (!isset($this->_injectedProperties[$name]) || $prop->isPrivate())) {
$result[$name] = $prop;
$this->_injectedProperties[$name] = true;
}
}
return $result;
}
/**
* 根据定义创建实例
*
* @param mixed $define
* @access private
* @return Object
*/
private function createInstance($define)
{
if (is_array($define)) {
$className = $define[0];
$args = isset($define[1]) ? (is_array($define[1]) ? $define[1] : array($define[1])) : array();
$reflect = new ReflectionClass($className);
return $reflect->newInstanceArgs($args);
} else if (is_string($define)) {
return new $define();
} else if (is_callable($define)) {
return $define($this);
}
return false;
}
/**
* getDefaultHandlers
*
* @static
* @access private
* @return void
*/
private static function getDefaultHandlers()
{
static $defaultHandlers;
if (!empty($defaultHandlers)) {
return $defaultHandlers;
}
$defaultHandlers = array(
// 301 跳转
301 => function ($url) {
header('Location: ' . $url, false, 301);
},
// 302 跳转
302 => function ($url) {
header('Location: ' . $url, false, 302);
},
// 403 禁止访问
403 => function ($file = '') {
header('HTTP/1.1 403 ACCESS DENIED', true, 403);
if (empty($file)) {
echo '<h1>403</h1>';
} else {
require $file;
}
},
// 404 页面不存在
404 => function ($file = '') {
header('HTTP/1.1 404 Not Found', true, 404);
if (empty($file)) {
echo '<h1>404</h1>';
} else {
require $file;
}
},
// 500 服务器内部错误
500 => function ($e, $file = '') {
header('HTTP/1.1 500 Internal Server Error', true, 500);
if (empty($file)) {
echo '<h1>' . $e . '</h1>';
} else {
require $file;
}
},
// 返回来源页面
'back' => function () {
$referer = L::getClient('referer');
if (!empty($referer)) {
header('Location: ' . $referer, false, 302);
}
},
// 输出json
'json' => function ($data) {
header('Content-Type: application/json; charset=UTF-8');
header('Cache-Control: no-cache');
echo json_encode($data);
},
// 输出jsonp
'jsonp' => function ($data, $callback = 'callback') {
header('Content-Type: text/javascript; charset=UTF-8');
header('Cache-Control: no-cache');
$callback = L::get($callback, 'jsonp');
echo $callback . '(' . json_encode($data) . ')';
},
// 输出html模板
'template' => function ($file, $data, $base = '') {
global $template;
$template = function ($file, array $custom = NULL) use ($data, $base) {
global $template;
if (is_object($data)) {
$vars = get_object_vars($data);
if (!empty($custom)) {
$vars = array_merge($vars, $custom);
}
extract($vars);
unset($vars);
} else {
if (!empty($custom)) {
$data = array_merge($data, $custom);
}
extract($data);
}
require (empty($base) ? '' : $base . '/') . $file;
};
header('Content-Type: text/html; charset=UTF-8');
$template($file);
}
);
return $defaultHandlers;
}
/**
* inject
*
* @param mixed $name
* @param mixed $define
* @static
* @access public
* @return void
*/
public static function inject($name, $define)
{
self::$_injectiveObjects[$name] = $define;
}
/**
* 判断是否符合条件
*
* @param string $rule
* @access public
* @return boolean
*/
public static function is($rule)
{
$parts = parse_url($rule);
if (isset($parts['scheme'])) {
$schemes = explode('+', $params['scheme']);
foreach ($schemes as $scheme) {
if (!self::isScheme($scheme)) {
return false;
}
}
}
if (isset($parts['path'])) {
$params = array();
$path = preg_replace_callback('/\[([_0-9a-z]+)\]/i', function ($matches) use (&$params) {
$params[] = $matches[1];
return '%';
}, $parts['path']);
$path = str_replace('%', '([^\/]+)', preg_quote($path));
if (preg_match('|^' . $path . '$|', self::getRequest('path'), $matches)) {
array_shift($matches);
if (!empty($params)) {
self::$_params = array_combine($params, $matches);
}
} else {
return false;
}
}
if (isset($parts['query'])) {
parse_str($parts['query'], $params);
if ($params) {
foreach ($params as $key => $val) {
if (empty($val) ? NULL === self::get($key) : ($val != self::get($key))) {
return false;
}
}
}
}
return true;
}
/**
* 绑定条件处理
*
* @param array $map
* @param array $handlers
* @param mixed $default
* @static
* @access public
* @return void
*/
public static function route(array $map, array $handlers = array(), $default = 404)
{
$result = $default;
foreach ($map as $rule => $action) {
if (self::is($rule)) {
try {
if (is_array($action)) {
list ($class, $method) = $action;
if (is_object($class)) {
$object = $class;
$result = $object->{$method};
} else {
$ref = new ReflectionClass($class);
if ($ref->getMethod($method)->isStatic()) {
$result = call_user_func($action);
} else {
$object = new $class();
$result = $object->{$method}();
}
}
} else if (is_callable($action)) {
$result = call_user_func($action);
}
} catch (Exception $e) {
$result = array(500, $e);
break;
}
break;
}
}
if (!is_array($result)) {
$result = array($result);
}
// 对template做特殊处理以简化返回
if ('template' == $result[0] && !isset($result[2]) && isset($object)) {
$result[2] = $object;
}
$name = array_shift($result);
$args = $result;
$defaultHandlers = self::getDefaultHandlers();
if (isset($handlers[$name])) {
$handler = $handlers[$name];
if (is_array($handler)) {
foreach ($handler as $key => $val) {
$args[$key] = $val;
}
ksort($args);
} else if (is_callable($handler)) {
$defaultHandlers[$name] = $handler;
}
}
if (isset($defaultHandlers[$name])) {
call_user_func_array($defaultHandlers[$name], $args);
}
}
/**
* 自动加载
*
* @param mixed $path
* @param mixed $namespace
* @static
* @access public
* @return void
*/
public static function autoload($path, $namespace = NULL)
{
spl_autoload_register(function ($class) use ($path, $namespace) {
if (!empty($namespace)) {
if (0 == strpos(ltrim($class, '\\'), $namespace . '\\')) {
$class = substr(ltrim($class, '\\'), strlen($namespace) + 1);
} else {
return;
}
}
$file = $path . '/' . str_replace(array('_', '\\'), '/', $class) . '.php';
if (file_exists($file)) {
include_once $file;
}
});
}
/**
* 判断是否符合协议规则
*
* @param string $scheme
* @access public
* @return boolean
*/
public static function isScheme($scheme)
{
$scheme = strtolower($scheme);
switch ($scheme) {
case 'get':
case 'post':
case 'delete':
case 'put':
return strtoupper($scheme) == self::getClient('method');
case 'upload':
return !empty($_FILES);
case 'ajax':
return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && 'XMLHttpRequest' == $_SERVER['HTTP_X_REQUESTED_WITH'];
case 'https':
return (!empty($_SERVER['HTTPS']) && 'off' != strtolower($_SERVER['HTTPS']))
|| (!empty($_SERVER['SERVER_PORT']) && 443 == $_SERVER['SERVER_PORT']);
case 'mobile':
$userAgent = self::getClient('agent');
return preg_match('/android.+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i', $userAgent) || preg_match('/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i', substr($userAgent, 0, 4));
default:
return false;
}
}
/**
* 获取客户端数据
*
* @param mixed $name
* @access public
* @return void
*/
public static function getClient($name)
{
if ('ip' == $name) {
switch (true) {
case !empty($_SERVER['HTTP_X_FORWARDED_FOR']):
$ip = array_map('trim', explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']));
return array_shift($ip);
case !empty($_SERVER['HTTP_CLIENT_IP']):
return $_SERVER['HTTP_CLIENT_IP'];
case !empty($_SERVER['REMOTE_ADDR']):
return $_SERVER['REMOTE_ADDR'];
default:
break;
}
} else if ('agent' == $name && !empty($_SERVER['HTTP_USER_AGENT'])) {
return $_SERVER['HTTP_USER_AGENT'];
} else if ('method' == $name && !empty($_SERVER['REQUEST_METHOD'])) {
return strtoupper($_SERVER['REQUEST_METHOD']);
} else if ('referer' == $name && !empty($_SERVER['HTTP_REFERER'])) {
return $_SERVER['HTTP_REFERER'];
} else if ('langs' == $name && !empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
if (preg_match_all("/[a-z-]+/i", $_SERVER['HTTP_ACCEPT_LANGUAGE'], $matches)) {
return array_map('strtolower', $matches[0]);
} else {
return array('en');
}
}
return false;
}
/**
* getRequest
*
* @param mixed $name
* @static
* @access public
* @return void
*/
public static function getRequest($name)
{
if ('uri' == $name) {
static $requestUri;
if (!empty($requestUri)) {
return $requestUri;
}
//处理requestUri
$requestUri = '/';
if (isset($_SERVER['HTTP_X_REWRITE_URL'])) { // check this first so IIS will catch
$requestUri = $_SERVER['HTTP_X_REWRITE_URL'];
} elseif (
// IIS7 with URL Rewrite: make sure we get the unencoded url (double slash problem)
isset($_SERVER['IIS_WasUrlRewritten'])
&& $_SERVER['IIS_WasUrlRewritten'] == '1'
&& isset($_SERVER['UNENCODED_URL'])
&& $_SERVER['UNENCODED_URL'] != ''
) {
$requestUri = $_SERVER['UNENCODED_URL'];
} elseif (isset($_SERVER['REQUEST_URI'])) {
$requestUri = $_SERVER['REQUEST_URI'];
if (isset($_SERVER['HTTP_HOST']) && strstr($requestUri, $_SERVER['HTTP_HOST'])) {
$parts = @parse_url($requestUri);
if (false !== $parts) {
$requestUri = (empty($parts['path']) ? '' : $parts['path'])
. ((empty($parts['query'])) ? '' : '?' . $parts['query']);
}
}
} elseif (isset($_SERVER['ORIG_PATH_INFO'])) { // IIS 5.0, PHP as CGI
$requestUri = $_SERVER['ORIG_PATH_INFO'];
if (!empty($_SERVER['QUERY_STRING'])) {
$requestUri .= '?' . $_SERVER['QUERY_STRING'];
}
}
return $requestUri;
} else if ('base' == $name) {
static $finalBaseUrl;
if (!empty($finalBaseUrl)) {
return $finalBaseUrl;
}
//处理baseUrl
$filename = (isset($_SERVER['SCRIPT_FILENAME'])) ? basename($_SERVER['SCRIPT_FILENAME']) : '';
if (isset($_SERVER['SCRIPT_NAME']) && basename($_SERVER['SCRIPT_NAME']) === $filename) {
$baseUrl = $_SERVER['SCRIPT_NAME'];
} elseif (isset($_SERVER['PHP_SELF']) && basename($_SERVER['PHP_SELF']) === $filename) {
$baseUrl = $_SERVER['PHP_SELF'];
} elseif (isset($_SERVER['ORIG_SCRIPT_NAME']) && basename($_SERVER['ORIG_SCRIPT_NAME']) === $filename) {
$baseUrl = $_SERVER['ORIG_SCRIPT_NAME']; // 1and1 shared hosting compatibility
} else {
// Backtrack up the script_filename to find the portion matching
// php_self
$path = isset($_SERVER['PHP_SELF']) ? $_SERVER['PHP_SELF'] : '';
$file = isset($_SERVER['SCRIPT_FILENAME']) ? $_SERVER['SCRIPT_FILENAME'] : '';
$segs = explode('/', trim($file, '/'));
$segs = array_reverse($segs);
$index = 0;
$last = count($segs);
$baseUrl = '';
do {
$seg = $segs[$index];
$baseUrl = '/' . $seg . $baseUrl;
++$index;
} while (($last > $index) && (false !== ($pos = strpos($path, $baseUrl))) && (0 != $pos));
}
// Does the baseUrl have anything in common with the request_uri?
$finalBaseUrl = NULL;
$requestUri = self::getRequest('uri');
if (0 === strpos($requestUri, $baseUrl)) {
// full $baseUrl matches
$finalBaseUrl = $baseUrl;
} else if (0 === strpos($requestUri, dirname($baseUrl))) {
// directory portion of $baseUrl matches
$finalBaseUrl = rtrim(dirname($baseUrl), '/');
} else if (!strpos($requestUri, basename($baseUrl))) {
// no match whatsoever; set it blank
$finalBaseUrl = '';
} else if ((strlen($requestUri) >= strlen($baseUrl))
&& ((false !== ($pos = strpos($requestUri, $baseUrl))) && ($pos !== 0)))
{
// If using mod_rewrite or ISAPI_Rewrite strip the script filename
// out of baseUrl. $pos !== 0 makes sure it is not matching a value
// from PATH_INFO or QUERY_STRING
$baseUrl = substr($requestUri, 0, $pos + strlen($baseUrl));
}
$finalBaseUrl = (NULL === $finalBaseUrl) ? rtrim($baseUrl, '/') : $finalBaseUrl;
return $finalBaseUrl;
} else if ('root' == $name) {
static $root;
if (!empty($root)) {
return $root;
}
$root = rtrim((self::isScheme('https') ? 'https' : 'http')
. '://' . $_SERVER['HTTP_HOST']
. self::getRequest('base'), '/') . '/';
$pos = strrpos($root, '.php/');
if ($pos) {
$root = dirname(substr($root, 0, $pos));
}
$root = rtrim($root, '/');
return $root;
} else if ('url' == $name) {
static $requestUrl;
if (!empty($requestUrl)) {
return $requestUrl;
}
$scheme = self::isScheme('https') ? 'https' : 'http';
$requestUrl = $scheme . '://' . $_SERVER['HTTP_HOST'] . self::getRequest('uri');
return $requestUrl;
} else if ('path' == $name) {
static $pathInfo;
if (!empty($pathInfo)) {
return $pathInfo;
}
//参考Zend Framework对pahtinfo的处理, 更好的兼容性
$pathInfo = NULL;
//处理requestUri
$requestUri = self::getRequest('uri');
$finalBaseUrl = self::getRequest('base');
// Remove the query string from REQUEST_URI
if ($pos = strpos($requestUri, '?')) {
$requestUri = substr($requestUri, 0, $pos);
}
if ((NULL !== $finalBaseUrl)
&& (false === ($pathInfo = substr($requestUri, strlen($finalBaseUrl)))))
{
// If substr() returns false then PATH_INFO is set to an empty string
$pathInfo = '/';
} elseif (NULL === $finalBaseUrl) {
$pathInfo = $requestUri;
}
if (!empty($pathInfo)) {
//针对iis的utf8编码做强制转换
//参考http://docs.moodle.org/ja/%E5%A4%9A%E8%A8%80%E8%AA%9E%E5%AF%BE%E5%BF%9C%EF%BC%9A%E3%82%B5%E3%83%BC%E3%83%90%E3%81%AE%E8%A8%AD%E5%AE%9A
if (!empty($inputEncoding) && !empty($outputEncoding) &&
(stripos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS') !== false
|| stripos($_SERVER['SERVER_SOFTWARE'], 'ExpressionDevServer') !== false)) {
if (function_exists('mb_convert_encoding')) {
$pathInfo = mb_convert_encoding($pathInfo, $outputEncoding, $inputEncoding);
} else if (function_exists('iconv')) {
$pathInfo = iconv($pathInfoEncoding, $outputEncoding, $pathInfo);
}
}
} else {
$pathInfo = '/';
}
$pathInfo = '/' . ltrim(urldecode($pathInfo), '/');
return $pathInfo;
}
return false;
}
/**
* 获取前端传递参数
*
* @param string $name 参数值
* @param mixed $default
* @param mixed $realKey
* @access public
* @return mixed
*/
public static function get($name, $default = NULL, &$realKey = NULL)
{
if (is_array($name)) {
$result = array();
foreach ($name as $key => $val) {
$param = is_int($key) ? self::get($val, NULL, $paramKey)
: self::get($key, $val, $paramKey);
$result[$paramKey] = $param;
}
}
static $params;
if (NULL === $params) {
$params = array_merge($_GET, $_POST, self::$_params);
}
$realKey = $name;
$filters = array();
if (strpos($name, '#')) {
list($realKey, $filters) = explode('#', $name, 2);
$filters = explode(',', $filters);
}
$param = isset($params[$realKey]) ? $params[$realKey] : $default;
foreach ($filters as $filter) {
$param = $filter($param);
}
return $param;
}
/**
* html
*
* @param mixed $tag
* @param mixed $attributes
* @param mixed $meta
* @static
* @access public
* @return void
*/
public static function html($tag, $attributes = NULL, $meta = NULL)
{
$tag = strtolower($tag);
$short = array(
'icon' => array('link', 'rel=shortcut+icon&href=$1$'),
'css' => array('link', 'rel=stylesheet&href=$1$'),
'js' => array('script', 'src=$1$'),
'search' => array('link', 'rel=search&type=application/opensearchdescription%2Bxml&href=$1$&title=$2$'),
'rss1' => array('link', 'rel=alternate&type=application/rdf%2Bxml&href=$1$&title=$2$'),
'rss2' => array('link', 'rel=alternate&type=application/rss%2Bxml&href=$1$&title=$2$'),
'atom' => array('link', 'rel=alternate&type=application/atom%2Bxml&href=$1$&title=$2$'),
'scale1' => array('meta', 'name=viewport', 'width=device-width, initial-scale=1, maximum-scale=1'),
'ga' => array('ga', 'id=$1$')
);
$preAttrs = array();
if (isset($short[$tag])) {
$define = $short[$tag];
list ($tag) = $define;
$replace = array(urlencode($attributes), urlencode($meta));
if (isset($define[1])) {
$attributes = str_replace(array('$1$', '$2$'), $replace, $define[1]);
}
if (isset($define[2])) {
$meta = str_replace(array('$1$', '$2$'), $replace, $define[2]);
}
}
$schemes = array(
array('link', 'img'),
array(
'select' => function ($html, $attrs, array $meta) {
$html .= '>';
foreach ($meta as $key => $val) {
$html .= "<option value=\"{$key}\">{$val}</option>";
}
return $html . '</select>';
},
'input' => function ($html, $attrs, $meta) {
return $html . ' value="' . htmlspecialchars($meta) . '" />';
},
'meta' => function ($html, $attrs, $meta) {
return $html . ' content="' . htmlspecialchars($meta) . '" />';
},
'ga' => function ($html, $attrs, array $meta = NULL) {
$html = "\n<script>\nvar _gaq = _gaq || [];\n";
$html .= "_gaq.push(['_setAccount', '{$attrs['id']}']);\n";
if (!empty($meta)) {
foreach ($meta as $key => $val) {
if (is_int($key)) {
$html .= "_gaq.push(['{$val}']);\n";
} else {
$val = json_encode($val);
$html .= "_gaq.push(['{$key}', {$val}]);\n";
}
}
}
$html .= "(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script>";
return $html;
}
)
);
$html = "<{$tag}";
$attrs = array();
if (!empty($attributes)) {
if (is_string($attributes)) {
parse_str($attributes, $attrs);
} else {
$attrs = (array) $attributes;
}
$attrs = array_merge($preAttrs, $attrs);
foreach ($attrs as $key => $val) {
$html .= " {$key}=\"{$val}\"";
}
}
if (in_array($tag, $schemes[0])) {
echo $html . ' />';
} else if (isset($schemes[1][$tag])) {
echo $schemes[1][$tag]($html, $attrs, $meta);
} else {
echo $html . '>' . htmlspecialchars($meta) . "</{$tag}>";
}
}
}