1148 lines
45 KiB
PHP
1148 lines
45 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006~2017 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace think;
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use think\exception\TemplateNotFoundException;
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/**
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* ThinkPHP分离出来的模板引擎
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* 支持XML标签和普通标签的模板解析
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* 编译型模板引擎 支持动态缓存
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*/
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class Template
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{
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// 模板变量
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protected $data = [];
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// 引擎配置
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protected $config = [
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'view_path' => '', // 模板路径
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'view_base' => '',
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'view_suffix' => 'html', // 默认模板文件后缀
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'view_depr' => DS,
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'cache_suffix' => 'php', // 默认模板缓存后缀
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'tpl_deny_func_list' => 'echo,exit', // 模板引擎禁用函数
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'tpl_deny_php' => false, // 默认模板引擎是否禁用PHP原生代码
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'tpl_begin' => '{', // 模板引擎普通标签开始标记
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'tpl_end' => '}', // 模板引擎普通标签结束标记
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'strip_space' => false, // 是否去除模板文件里面的html空格与换行
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'tpl_cache' => true, // 是否开启模板编译缓存,设为false则每次都会重新编译
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'compile_type' => 'file', // 模板编译类型
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'cache_prefix' => '', // 模板缓存前缀标识，可以动态改变
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'cache_time' => 0, // 模板缓存有效期 0 为永久，(以数字为值，单位:秒)
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'layout_on' => false, // 布局模板开关
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'layout_name' => 'layout', // 布局模板入口文件
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'layout_item' => '{__CONTENT__}', // 布局模板的内容替换标识
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'taglib_begin' => '{', // 标签库标签开始标记
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'taglib_end' => '}', // 标签库标签结束标记
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'taglib_load' => true, // 是否使用内置标签库之外的其它标签库，默认自动检测
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'taglib_build_in' => 'cx', // 内置标签库名称(标签使用不必指定标签库名称),以逗号分隔 注意解析顺序
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'taglib_pre_load' => '', // 需要额外加载的标签库(须指定标签库名称)，多个以逗号分隔
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'display_cache' => false, // 模板渲染缓存
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'cache_id' => '', // 模板缓存ID
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'tpl_replace_string' => [],
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'tpl_var_identify' => 'array', // .语法变量识别，array|object|'', 为空时自动识别
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];
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private $literal = [];
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private $includeFile = []; // 记录所有模板包含的文件路径及更新时间
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protected $storage;
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/**
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* 构造函数
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* @access public
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* @param array $config
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*/
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public function __construct(array $config = [])
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{
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$this->config['cache_path'] = TEMP_PATH;
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$this->config = array_merge($this->config, $config);
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$this->config['taglib_begin'] = $this->stripPreg($this->config['taglib_begin']);
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$this->config['taglib_end'] = $this->stripPreg($this->config['taglib_end']);
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$this->config['tpl_begin'] = $this->stripPreg($this->config['tpl_begin']);
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$this->config['tpl_end'] = $this->stripPreg($this->config['tpl_end']);
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// 初始化模板编译存储器
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$type = $this->config['compile_type'] ? $this->config['compile_type'] : 'File';
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$class = false !== strpos($type, '\\') ? $type : '\\think\\template\\driver\\' . ucwords($type);
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$this->storage = new $class();
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}
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/**
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* 字符串替换 避免正则混淆
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* @access private
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* @param string $str
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* @return string
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*/
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private function stripPreg($str)
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{
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return str_replace(
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['{', '}', '(', ')', '|', '[', ']', '-', '+', '*', '.', '^', '?'],
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['\{', '\}', '\(', '\)', '\|', '\[', '\]', '\-', '\+', '\*', '\.', '\^', '\?'],
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$str);
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}
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/**
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* 模板变量赋值
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* @access public
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* @param mixed $name
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* @param mixed $value
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* @return void
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*/
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public function assign($name, $value = '')
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{
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if (is_array($name)) {
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$this->data = array_merge($this->data, $name);
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} else {
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$this->data[$name] = $value;
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}
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}
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/**
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* 模板引擎参数赋值
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* @access public
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* @param mixed $name
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* @param mixed $value
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*/
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public function __set($name, $value)
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{
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$this->config[$name] = $value;
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}
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/**
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* 模板引擎配置项
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* @access public
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* @param array|string $config
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* @return void|array
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*/
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public function config($config)
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{
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if (is_array($config)) {
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$this->config = array_merge($this->config, $config);
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} elseif (isset($this->config[$config])) {
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return $this->config[$config];
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} else {
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return;
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}
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}
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/**
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* 模板变量获取
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* @access public
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* @param string $name 变量名
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* @return mixed
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*/
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public function get($name = '')
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{
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if ('' == $name) {
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return $this->data;
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} else {
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$data = $this->data;
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foreach (explode('.', $name) as $key => $val) {
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if (isset($data[$val])) {
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$data = $data[$val];
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} else {
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$data = null;
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break;
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}
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}
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return $data;
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}
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}
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/**
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* 渲染模板文件
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* @access public
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* @param string $template 模板文件
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* @param array $vars 模板变量
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* @param array $config 模板参数
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* @return void
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*/
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public function fetch($template, $vars = [], $config = [])
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{
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if ($vars) {
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$this->data = $vars;
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}
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if ($config) {
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$this->config($config);
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}
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if (!empty($this->config['cache_id']) && $this->config['display_cache']) {
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// 读取渲染缓存
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$cacheContent = Cache::get($this->config['cache_id']);
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if (false !== $cacheContent) {
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echo $cacheContent;
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return;
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}
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}
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$template = $this->parseTemplateFile($template);
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if ($template) {
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$cacheFile = $this->config['cache_path'] . $this->config['cache_prefix'] . md5($template) . '.' . ltrim($this->config['cache_suffix'], '.');
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if (!$this->checkCache($cacheFile)) {
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// 缓存无效 重新模板编译
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$content = file_get_contents($template);
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$this->compiler($content, $cacheFile);
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}
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// 页面缓存
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ob_start();
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ob_implicit_flush(0);
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// 读取编译存储
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$this->storage->read($cacheFile, $this->data);
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// 获取并清空缓存
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$content = ob_get_clean();
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if (!empty($this->config['cache_id']) && $this->config['display_cache']) {
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// 缓存页面输出
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Cache::set($this->config['cache_id'], $content, $this->config['cache_time']);
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}
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echo $content;
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}
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}
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/**
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* 渲染模板内容
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* @access public
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* @param string $content 模板内容
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* @param array $vars 模板变量
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* @param array $config 模板参数
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* @return void
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*/
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public function display($content, $vars = [], $config = [])
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{
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if ($vars) {
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$this->data = $vars;
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}
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if ($config) {
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$this->config($config);
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}
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$cacheFile = $this->config['cache_path'] . $this->config['cache_prefix'] . md5($content) . '.' . ltrim($this->config['cache_suffix'], '.');
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if (!$this->checkCache($cacheFile)) {
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// 缓存无效 模板编译
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$this->compiler($content, $cacheFile);
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}
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// 读取编译存储
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$this->storage->read($cacheFile, $this->data);
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}
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/**
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* 设置布局
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* @access public
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* @param mixed $name 布局模板名称 false 则关闭布局
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* @param string $replace 布局模板内容替换标识
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* @return object
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*/
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public function layout($name, $replace = '')
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{
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if (false === $name) {
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// 关闭布局
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$this->config['layout_on'] = false;
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} else {
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// 开启布局
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$this->config['layout_on'] = true;
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// 名称必须为字符串
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if (is_string($name)) {
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$this->config['layout_name'] = $name;
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}
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if (!empty($replace)) {
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$this->config['layout_item'] = $replace;
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}
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}
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return $this;
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}
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/**
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* 检查编译缓存是否有效
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* 如果无效则需要重新编译
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* @access private
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* @param string $cacheFile 缓存文件名
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* @return boolean
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*/
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private function checkCache($cacheFile)
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{
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// 未开启缓存功能
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if (!$this->config['tpl_cache']) {
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return false;
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}
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// 缓存文件不存在
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if (!is_file($cacheFile)) {
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return false;
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}
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// 读取缓存文件失败
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if (!$handle = @fopen($cacheFile, "r")) {
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return false;
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}
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// 读取第一行
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preg_match('/\/\*(.+?)\*\//', fgets($handle), $matches);
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if (!isset($matches[1])) {
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return false;
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}
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$includeFile = unserialize($matches[1]);
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if (!is_array($includeFile)) {
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return false;
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}
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// 检查模板文件是否有更新
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foreach ($includeFile as $path => $time) {
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if (is_file($path) && filemtime($path) > $time) {
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// 模板文件如果有更新则缓存需要更新
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return false;
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}
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}
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// 检查编译存储是否有效
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return $this->storage->check($cacheFile, $this->config['cache_time']);
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}
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/**
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* 检查编译缓存是否存在
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* @access public
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* @param string $cacheId 缓存的id
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* @return boolean
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*/
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public function isCache($cacheId)
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{
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if ($cacheId && $this->config['display_cache']) {
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// 缓存页面输出
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return Cache::has($cacheId);
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}
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return false;
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}
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/**
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* 编译模板文件内容
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* @access private
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* @param string $content 模板内容
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* @param string $cacheFile 缓存文件名
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* @return void
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*/
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private function compiler(&$content, $cacheFile)
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{
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// 判断是否启用布局
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if ($this->config['layout_on']) {
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if (false !== strpos($content, '{__NOLAYOUT__}')) {
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// 可以单独定义不使用布局
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$content = str_replace('{__NOLAYOUT__}', '', $content);
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} else {
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// 读取布局模板
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$layoutFile = $this->parseTemplateFile($this->config['layout_name']);
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if ($layoutFile) {
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// 替换布局的主体内容
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$content = str_replace($this->config['layout_item'], $content, file_get_contents($layoutFile));
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}
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}
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} else {
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$content = str_replace('{__NOLAYOUT__}', '', $content);
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}
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// 模板解析
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$this->parse($content);
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if ($this->config['strip_space']) {
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/* 去除html空格与换行 */
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$find = ['~>\s+<~', '~>(\s+\n|\r)~'];
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$replace = ['><', '>'];
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$content = preg_replace($find, $replace, $content);
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}
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// 优化生成的php代码
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$content = preg_replace('/\?>\s*<\?php\s(?!echo\b)/s', '', $content);
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// 模板过滤输出
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$replace = $this->config['tpl_replace_string'];
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$content = str_replace(array_keys($replace), array_values($replace), $content);
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// 添加安全代码及模板引用记录
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$content = '<?php if (!defined(\'THINK_PATH\')) exit(); /*' . serialize($this->includeFile) . '*/ ?>' . "\n" . $content;
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// 编译存储
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$this->storage->write($cacheFile, $content);
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$this->includeFile = [];
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return;
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}
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/**
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* 模板解析入口
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* 支持普通标签和TagLib解析 支持自定义标签库
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* @access public
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* @param string $content 要解析的模板内容
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* @return void
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*/
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public function parse(&$content)
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{
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// 内容为空不解析
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if (empty($content)) {
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return;
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}
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// 替换literal标签内容
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$this->parseLiteral($content);
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// 解析继承
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$this->parseExtend($content);
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// 解析布局
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$this->parseLayout($content);
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// 检查include语法
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$this->parseInclude($content);
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// 替换包含文件中literal标签内容
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$this->parseLiteral($content);
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// 检查PHP语法
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$this->parsePhp($content);
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// 获取需要引入的标签库列表
|
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// 标签库只需要定义一次，允许引入多个一次
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// 一般放在文件的最前面
|
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// 格式：<taglib name="html,mytag..." />
|
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// 当TAGLIB_LOAD配置为true时才会进行检测
|
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if ($this->config['taglib_load']) {
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$tagLibs = $this->getIncludeTagLib($content);
|
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if (!empty($tagLibs)) {
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// 对导入的TagLib进行解析
|
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foreach ($tagLibs as $tagLibName) {
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$this->parseTagLib($tagLibName, $content);
|
||
}
|
||
}
|
||
}
|
||
// 预先加载的标签库 无需在每个模板中使用taglib标签加载 但必须使用标签库XML前缀
|
||
if ($this->config['taglib_pre_load']) {
|
||
$tagLibs = explode(',', $this->config['taglib_pre_load']);
|
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foreach ($tagLibs as $tag) {
|
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$this->parseTagLib($tag, $content);
|
||
}
|
||
}
|
||
// 内置标签库 无需使用taglib标签导入就可以使用 并且不需使用标签库XML前缀
|
||
$tagLibs = explode(',', $this->config['taglib_build_in']);
|
||
foreach ($tagLibs as $tag) {
|
||
$this->parseTagLib($tag, $content, true);
|
||
}
|
||
// 解析普通模板标签 {$tagName}
|
||
$this->parseTag($content);
|
||
|
||
// 还原被替换的Literal标签
|
||
$this->parseLiteral($content, true);
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 检查PHP语法
|
||
* @access private
|
||
* @param string $content 要解析的模板内容
|
||
* @return void
|
||
* @throws \think\Exception
|
||
*/
|
||
private function parsePhp(&$content)
|
||
{
|
||
// 短标签的情况要将<?标签用echo方式输出 否则无法正常输出xml标识
|
||
$content = preg_replace('/(<\?(?!php|=|$))/i', '<?php echo \'\\1\'; ?>' . "\n", $content);
|
||
// PHP语法检查
|
||
if ($this->config['tpl_deny_php'] && false !== strpos($content, '<?php')) {
|
||
throw new Exception('not allow php tag', 11600);
|
||
}
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 解析模板中的布局标签
|
||
* @access private
|
||
* @param string $content 要解析的模板内容
|
||
* @return void
|
||
*/
|
||
private function parseLayout(&$content)
|
||
{
|
||
// 读取模板中的布局标签
|
||
if (preg_match($this->getRegex('layout'), $content, $matches)) {
|
||
// 替换Layout标签
|
||
$content = str_replace($matches[0], '', $content);
|
||
// 解析Layout标签
|
||
$array = $this->parseAttr($matches[0]);
|
||
if (!$this->config['layout_on'] || $this->config['layout_name'] != $array['name']) {
|
||
// 读取布局模板
|
||
$layoutFile = $this->parseTemplateFile($array['name']);
|
||
if ($layoutFile) {
|
||
$replace = isset($array['replace']) ? $array['replace'] : $this->config['layout_item'];
|
||
// 替换布局的主体内容
|
||
$content = str_replace($replace, $content, file_get_contents($layoutFile));
|
||
}
|
||
}
|
||
} else {
|
||
$content = str_replace('{__NOLAYOUT__}', '', $content);
|
||
}
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 解析模板中的include标签
|
||
* @access private
|
||
* @param string $content 要解析的模板内容
|
||
* @return void
|
||
*/
|
||
private function parseInclude(&$content)
|
||
{
|
||
$regex = $this->getRegex('include');
|
||
$func = function ($template) use (&$func, &$regex, &$content) {
|
||
if (preg_match_all($regex, $template, $matches, PREG_SET_ORDER)) {
|
||
foreach ($matches as $match) {
|
||
$array = $this->parseAttr($match[0]);
|
||
$file = $array['file'];
|
||
unset($array['file']);
|
||
// 分析模板文件名并读取内容
|
||
$parseStr = $this->parseTemplateName($file);
|
||
foreach ($array as $k => $v) {
|
||
// 以$开头字符串转换成模板变量
|
||
if (0 === strpos($v, '$')) {
|
||
$v = $this->get(substr($v, 1));
|
||
}
|
||
$parseStr = str_replace('[' . $k . ']', $v, $parseStr);
|
||
}
|
||
$content = str_replace($match[0], $parseStr, $content);
|
||
// 再次对包含文件进行模板分析
|
||
$func($parseStr);
|
||
}
|
||
unset($matches);
|
||
}
|
||
};
|
||
// 替换模板中的include标签
|
||
$func($content);
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 解析模板中的extend标签
|
||
* @access private
|
||
* @param string $content 要解析的模板内容
|
||
* @return void
|
||
*/
|
||
private function parseExtend(&$content)
|
||
{
|
||
$regex = $this->getRegex('extend');
|
||
$array = $blocks = $baseBlocks = [];
|
||
$extend = '';
|
||
$func = function ($template) use (&$func, &$regex, &$array, &$extend, &$blocks, &$baseBlocks) {
|
||
if (preg_match($regex, $template, $matches)) {
|
||
if (!isset($array[$matches['name']])) {
|
||
$array[$matches['name']] = 1;
|
||
// 读取继承模板
|
||
$extend = $this->parseTemplateName($matches['name']);
|
||
// 递归检查继承
|
||
$func($extend);
|
||
// 取得block标签内容
|
||
$blocks = array_merge($blocks, $this->parseBlock($template));
|
||
return;
|
||
}
|
||
} else {
|
||
// 取得顶层模板block标签内容
|
||
$baseBlocks = $this->parseBlock($template, true);
|
||
if (empty($extend)) {
|
||
// 无extend标签但有block标签的情况
|
||
$extend = $template;
|
||
}
|
||
}
|
||
};
|
||
|
||
$func($content);
|
||
if (!empty($extend)) {
|
||
if ($baseBlocks) {
|
||
$children = [];
|
||
foreach ($baseBlocks as $name => $val) {
|
||
$replace = $val['content'];
|
||
if (!empty($children[$name])) {
|
||
// 如果包含有子block标签
|
||
foreach ($children[$name] as $key) {
|
||
$replace = str_replace($baseBlocks[$key]['begin'] . $baseBlocks[$key]['content'] . $baseBlocks[$key]['end'], $blocks[$key]['content'], $replace);
|
||
}
|
||
}
|
||
if (isset($blocks[$name])) {
|
||
// 带有{__block__}表示与所继承模板的相应标签合并，而不是覆盖
|
||
$replace = str_replace(['{__BLOCK__}', '{__block__}'], $replace, $blocks[$name]['content']);
|
||
if (!empty($val['parent'])) {
|
||
// 如果不是最顶层的block标签
|
||
$parent = $val['parent'];
|
||
if (isset($blocks[$parent])) {
|
||
$blocks[$parent]['content'] = str_replace($blocks[$name]['begin'] . $blocks[$name]['content'] . $blocks[$name]['end'], $replace, $blocks[$parent]['content']);
|
||
}
|
||
$blocks[$name]['content'] = $replace;
|
||
$children[$parent][] = $name;
|
||
continue;
|
||
}
|
||
} elseif (!empty($val['parent'])) {
|
||
// 如果子标签没有被继承则用原值
|
||
$children[$val['parent']][] = $name;
|
||
$blocks[$name] = $val;
|
||
}
|
||
if (!$val['parent']) {
|
||
// 替换模板中的顶级block标签
|
||
$extend = str_replace($val['begin'] . $val['content'] . $val['end'], $replace, $extend);
|
||
}
|
||
}
|
||
}
|
||
$content = $extend;
|
||
unset($blocks, $baseBlocks);
|
||
}
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 替换页面中的literal标签
|
||
* @access private
|
||
* @param string $content 模板内容
|
||
* @param boolean $restore 是否为还原
|
||
* @return void
|
||
*/
|
||
private function parseLiteral(&$content, $restore = false)
|
||
{
|
||
$regex = $this->getRegex($restore ? 'restoreliteral' : 'literal');
|
||
if (preg_match_all($regex, $content, $matches, PREG_SET_ORDER)) {
|
||
if (!$restore) {
|
||
$count = count($this->literal);
|
||
// 替换literal标签
|
||
foreach ($matches as $match) {
|
||
$this->literal[] = substr($match[0], strlen($match[1]), -strlen($match[2]));
|
||
$content = str_replace($match[0], "<!--###literal{$count}###-->", $content);
|
||
$count++;
|
||
}
|
||
} else {
|
||
// 还原literal标签
|
||
foreach ($matches as $match) {
|
||
$content = str_replace($match[0], $this->literal[$match[1]], $content);
|
||
}
|
||
// 清空literal记录
|
||
$this->literal = [];
|
||
}
|
||
unset($matches);
|
||
}
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 获取模板中的block标签
|
||
* @access private
|
||
* @param string $content 模板内容
|
||
* @param boolean $sort 是否排序
|
||
* @return array
|
||
*/
|
||
private function parseBlock(&$content, $sort = false)
|
||
{
|
||
$regex = $this->getRegex('block');
|
||
$result = [];
|
||
if (preg_match_all($regex, $content, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE)) {
|
||
$right = $keys = [];
|
||
foreach ($matches as $match) {
|
||
if (empty($match['name'][0])) {
|
||
if (count($right) > 0) {
|
||
$tag = array_pop($right);
|
||
$start = $tag['offset'] + strlen($tag['tag']);
|
||
$length = $match[0][1] - $start;
|
||
$result[$tag['name']] = [
|
||
'begin' => $tag['tag'],
|
||
'content' => substr($content, $start, $length),
|
||
'end' => $match[0][0],
|
||
'parent' => count($right) ? end($right)['name'] : '',
|
||
];
|
||
$keys[$tag['name']] = $match[0][1];
|
||
}
|
||
} else {
|
||
// 标签头压入栈
|
||
$right[] = [
|
||
'name' => $match[2][0],
|
||
'offset' => $match[0][1],
|
||
'tag' => $match[0][0],
|
||
];
|
||
}
|
||
}
|
||
unset($right, $matches);
|
||
if ($sort) {
|
||
// 按block标签结束符在模板中的位置排序
|
||
array_multisort($keys, $result);
|
||
}
|
||
}
|
||
return $result;
|
||
}
|
||
|
||
/**
|
||
* 搜索模板页面中包含的TagLib库
|
||
* 并返回列表
|
||
* @access private
|
||
* @param string $content 模板内容
|
||
* @return array|null
|
||
*/
|
||
private function getIncludeTagLib(&$content)
|
||
{
|
||
// 搜索是否有TagLib标签
|
||
if (preg_match($this->getRegex('taglib'), $content, $matches)) {
|
||
// 替换TagLib标签
|
||
$content = str_replace($matches[0], '', $content);
|
||
return explode(',', $matches['name']);
|
||
}
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* TagLib库解析
|
||
* @access public
|
||
* @param string $tagLib 要解析的标签库
|
||
* @param string $content 要解析的模板内容
|
||
* @param boolean $hide 是否隐藏标签库前缀
|
||
* @return void
|
||
*/
|
||
public function parseTagLib($tagLib, &$content, $hide = false)
|
||
{
|
||
if (false !== strpos($tagLib, '\\')) {
|
||
// 支持指定标签库的命名空间
|
||
$className = $tagLib;
|
||
$tagLib = substr($tagLib, strrpos($tagLib, '\\') + 1);
|
||
} else {
|
||
$className = '\\think\\template\\taglib\\' . ucwords($tagLib);
|
||
}
|
||
$tLib = new $className($this);
|
||
$tLib->parseTag($content, $hide ? '' : $tagLib);
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 分析标签属性
|
||
* @access public
|
||
* @param string $str 属性字符串
|
||
* @param string $name 不为空时返回指定的属性名
|
||
* @return array
|
||
*/
|
||
public function parseAttr($str, $name = null)
|
||
{
|
||
$regex = '/\s+(?>(?P<name>[\w-]+)\s*)=(?>\s*)([\"\'])(?P<value>(?:(?!\\2).)*)\\2/is';
|
||
$array = [];
|
||
if (preg_match_all($regex, $str, $matches, PREG_SET_ORDER)) {
|
||
foreach ($matches as $match) {
|
||
$array[$match['name']] = $match['value'];
|
||
}
|
||
unset($matches);
|
||
}
|
||
if (!empty($name) && isset($array[$name])) {
|
||
return $array[$name];
|
||
} else {
|
||
return $array;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 模板标签解析
|
||
* 格式： {TagName:args [|content] }
|
||
* @access private
|
||
* @param string $content 要解析的模板内容
|
||
* @return void
|
||
*/
|
||
private function parseTag(&$content)
|
||
{
|
||
$regex = $this->getRegex('tag');
|
||
if (preg_match_all($regex, $content, $matches, PREG_SET_ORDER)) {
|
||
foreach ($matches as $match) {
|
||
$str = stripslashes($match[1]);
|
||
$flag = substr($str, 0, 1);
|
||
switch ($flag) {
|
||
case '$':
|
||
// 解析模板变量 格式 {$varName}
|
||
// 是否带有?号
|
||
if (false !== $pos = strpos($str, '?')) {
|
||
$array = preg_split('/([!=]={1,2}|(?<!-)[><]={0,1})/', substr($str, 0, $pos), 2, PREG_SPLIT_DELIM_CAPTURE);
|
||
$name = $array[0];
|
||
$this->parseVar($name);
|
||
$this->parseVarFunction($name);
|
||
|
||
$str = trim(substr($str, $pos + 1));
|
||
$this->parseVar($str);
|
||
$first = substr($str, 0, 1);
|
||
if (strpos($name, ')')) {
|
||
// $name为对象或是自动识别，或者含有函数
|
||
if (isset($array[1])) {
|
||
$this->parseVar($array[2]);
|
||
$name .= $array[1] . $array[2];
|
||
}
|
||
switch ($first) {
|
||
case '?':
|
||
$str = '<?php echo (' . $name . ') ? ' . $name . ' : ' . substr($str, 1) . '; ?>';
|
||
break;
|
||
case '=':
|
||
$str = '<?php if(' . $name . ') echo ' . substr($str, 1) . '; ?>';
|
||
break;
|
||
default:
|
||
$str = '<?php echo ' . $name . '?' . $str . '; ?>';
|
||
}
|
||
} else {
|
||
if (isset($array[1])) {
|
||
$this->parseVar($array[2]);
|
||
$express = $name . $array[1] . $array[2];
|
||
} else {
|
||
$express = false;
|
||
}
|
||
// $name为数组
|
||
switch ($first) {
|
||
case '?':
|
||
// {$varname??'xxx'} $varname有定义则输出$varname,否则输出xxx
|
||
$str = '<?php echo ' . ($express ?: 'isset(' . $name . ')') . '?' . $name . ':' . substr($str, 1) . '; ?>';
|
||
break;
|
||
case '=':
|
||
// {$varname?='xxx'} $varname为真时才输出xxx
|
||
$str = '<?php if(' . ($express ?: '!empty(' . $name . ')') . ') echo ' . substr($str, 1) . '; ?>';
|
||
break;
|
||
case ':':
|
||
// {$varname?:'xxx'} $varname为真时输出$varname,否则输出xxx
|
||
$str = '<?php echo ' . ($express ?: '!empty(' . $name . ')') . '?' . $name . $str . '; ?>';
|
||
break;
|
||
default:
|
||
$str = '<?php echo ' . ($express ?: '!empty(' . $name . ')') . '?' . $str . '; ?>';
|
||
}
|
||
}
|
||
} else {
|
||
$this->parseVar($str);
|
||
$this->parseVarFunction($str);
|
||
$str = '<?php echo ' . $str . '; ?>';
|
||
}
|
||
break;
|
||
case ':':
|
||
// 输出某个函数的结果
|
||
$str = substr($str, 1);
|
||
$this->parseVar($str);
|
||
$str = '<?php echo ' . $str . '; ?>';
|
||
break;
|
||
case '~':
|
||
// 执行某个函数
|
||
$str = substr($str, 1);
|
||
$this->parseVar($str);
|
||
$str = '<?php ' . $str . '; ?>';
|
||
break;
|
||
case '-':
|
||
case '+':
|
||
// 输出计算
|
||
$this->parseVar($str);
|
||
$str = '<?php echo ' . $str . '; ?>';
|
||
break;
|
||
case '/':
|
||
// 注释标签
|
||
$flag2 = substr($str, 1, 1);
|
||
if ('/' == $flag2 || ('*' == $flag2 && substr(rtrim($str), -2) == '*/')) {
|
||
$str = '';
|
||
}
|
||
break;
|
||
default:
|
||
// 未识别的标签直接返回
|
||
$str = $this->config['tpl_begin'] . $str . $this->config['tpl_end'];
|
||
break;
|
||
}
|
||
$content = str_replace($match[0], $str, $content);
|
||
}
|
||
unset($matches);
|
||
}
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 模板变量解析,支持使用函数
|
||
* 格式： {$varname|function1|function2=arg1,arg2}
|
||
* @access public
|
||
* @param string $varStr 变量数据
|
||
* @return void
|
||
*/
|
||
public function parseVar(&$varStr)
|
||
{
|
||
$varStr = trim($varStr);
|
||
if (preg_match_all('/\$[a-zA-Z_](?>\w*)(?:[:\.][0-9a-zA-Z_](?>\w*))+/', $varStr, $matches, PREG_OFFSET_CAPTURE)) {
|
||
static $_varParseList = [];
|
||
while ($matches[0]) {
|
||
$match = array_pop($matches[0]);
|
||
//如果已经解析过该变量字串，则直接返回变量值
|
||
if (isset($_varParseList[$match[0]])) {
|
||
$parseStr = $_varParseList[$match[0]];
|
||
} else {
|
||
if (strpos($match[0], '.')) {
|
||
$vars = explode('.', $match[0]);
|
||
$first = array_shift($vars);
|
||
if ('$Think' == $first) {
|
||
// 所有以Think.打头的以特殊变量对待 无需模板赋值就可以输出
|
||
$parseStr = $this->parseThinkVar($vars);
|
||
} elseif ('$Request' == $first) {
|
||
// 获取Request请求对象参数
|
||
$method = array_shift($vars);
|
||
if (!empty($vars)) {
|
||
$params = implode('.', $vars);
|
||
if ('true' != $params) {
|
||
$params = '\'' . $params . '\'';
|
||
}
|
||
} else {
|
||
$params = '';
|
||
}
|
||
$parseStr = '\think\Request::instance()->' . $method . '(' . $params . ')';
|
||
} else {
|
||
switch ($this->config['tpl_var_identify']) {
|
||
case 'array': // 识别为数组
|
||
$parseStr = $first . '[\'' . implode('\'][\'', $vars) . '\']';
|
||
break;
|
||
case 'obj': // 识别为对象
|
||
$parseStr = $first . '->' . implode('->', $vars);
|
||
break;
|
||
default: // 自动判断数组或对象
|
||
$parseStr = '(is_array(' . $first . ')?' . $first . '[\'' . implode('\'][\'', $vars) . '\']:' . $first . '->' . implode('->', $vars) . ')';
|
||
}
|
||
}
|
||
} else {
|
||
$parseStr = str_replace(':', '->', $match[0]);
|
||
}
|
||
$_varParseList[$match[0]] = $parseStr;
|
||
}
|
||
$varStr = substr_replace($varStr, $parseStr, $match[1], strlen($match[0]));
|
||
}
|
||
unset($matches);
|
||
}
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 对模板中使用了函数的变量进行解析
|
||
* 格式 {$varname|function1|function2=arg1,arg2}
|
||
* @access public
|
||
* @param string $varStr 变量字符串
|
||
* @return void
|
||
*/
|
||
public function parseVarFunction(&$varStr)
|
||
{
|
||
if (false == strpos($varStr, '|')) {
|
||
return;
|
||
}
|
||
static $_varFunctionList = [];
|
||
$_key = md5($varStr);
|
||
//如果已经解析过该变量字串，则直接返回变量值
|
||
if (isset($_varFunctionList[$_key])) {
|
||
$varStr = $_varFunctionList[$_key];
|
||
} else {
|
||
$varArray = explode('|', $varStr);
|
||
// 取得变量名称
|
||
$name = array_shift($varArray);
|
||
// 对变量使用函数
|
||
$length = count($varArray);
|
||
// 取得模板禁止使用函数列表
|
||
$template_deny_funs = explode(',', $this->config['tpl_deny_func_list']);
|
||
for ($i = 0; $i < $length; $i++) {
|
||
$args = explode('=', $varArray[$i], 2);
|
||
// 模板函数过滤
|
||
$fun = trim($args[0]);
|
||
switch ($fun) {
|
||
case 'default': // 特殊模板函数
|
||
if (false === strpos($name, '(')) {
|
||
$name = '(isset(' . $name . ') && (' . $name . ' !== \'\')?' . $name . ':' . $args[1] . ')';
|
||
} else {
|
||
$name = '(' . $name . ' ?: ' . $args[1] . ')';
|
||
}
|
||
break;
|
||
default: // 通用模板函数
|
||
if (!in_array($fun, $template_deny_funs)) {
|
||
if (isset($args[1])) {
|
||
if (strstr($args[1], '###')) {
|
||
$args[1] = str_replace('###', $name, $args[1]);
|
||
$name = "$fun($args[1])";
|
||
} else {
|
||
$name = "$fun($name,$args[1])";
|
||
}
|
||
} else {
|
||
if (!empty($args[0])) {
|
||
$name = "$fun($name)";
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
$_varFunctionList[$_key] = $name;
|
||
$varStr = $name;
|
||
}
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* 特殊模板变量解析
|
||
* 格式 以 $Think. 打头的变量属于特殊模板变量
|
||
* @access public
|
||
* @param array $vars 变量数组
|
||
* @return string
|
||
*/
|
||
public function parseThinkVar($vars)
|
||
{
|
||
$type = strtoupper(trim(array_shift($vars)));
|
||
$param = implode('.', $vars);
|
||
if ($vars) {
|
||
switch ($type) {
|
||
case 'SERVER':
|
||
$parseStr = '\\think\\Request::instance()->server(\'' . $param . '\')';
|
||
break;
|
||
case 'GET':
|
||
$parseStr = '\\think\\Request::instance()->get(\'' . $param . '\')';
|
||
break;
|
||
case 'POST':
|
||
$parseStr = '\\think\\Request::instance()->post(\'' . $param . '\')';
|
||
break;
|
||
case 'COOKIE':
|
||
$parseStr = '\\think\\Cookie::get(\'' . $param . '\')';
|
||
break;
|
||
case 'SESSION':
|
||
$parseStr = '\\think\\Session::get(\'' . $param . '\')';
|
||
break;
|
||
case 'ENV':
|
||
$parseStr = '\\think\\Request::instance()->env(\'' . $param . '\')';
|
||
break;
|
||
case 'REQUEST':
|
||
$parseStr = '\\think\\Request::instance()->request(\'' . $param . '\')';
|
||
break;
|
||
case 'CONST':
|
||
$parseStr = strtoupper($param);
|
||
break;
|
||
case 'LANG':
|
||
$parseStr = '\\think\\Lang::get(\'' . $param . '\')';
|
||
break;
|
||
case 'CONFIG':
|
||
$parseStr = '\\think\\Config::get(\'' . $param . '\')';
|
||
break;
|
||
default:
|
||
$parseStr = '\'\'';
|
||
break;
|
||
}
|
||
} else {
|
||
switch ($type) {
|
||
case 'NOW':
|
||
$parseStr = "date('Y-m-d g:i a',time())";
|
||
break;
|
||
case 'VERSION':
|
||
$parseStr = 'THINK_VERSION';
|
||
break;
|
||
case 'LDELIM':
|
||
$parseStr = '\'' . ltrim($this->config['tpl_begin'], '\\') . '\'';
|
||
break;
|
||
case 'RDELIM':
|
||
$parseStr = '\'' . ltrim($this->config['tpl_end'], '\\') . '\'';
|
||
break;
|
||
default:
|
||
if (defined($type)) {
|
||
$parseStr = $type;
|
||
} else {
|
||
$parseStr = '';
|
||
}
|
||
}
|
||
}
|
||
return $parseStr;
|
||
}
|
||
|
||
/**
|
||
* 分析加载的模板文件并读取内容 支持多个模板文件读取
|
||
* @access private
|
||
* @param string $templateName 模板文件名
|
||
* @return string
|
||
*/
|
||
private function parseTemplateName($templateName)
|
||
{
|
||
$array = explode(',', $templateName);
|
||
$parseStr = '';
|
||
foreach ($array as $templateName) {
|
||
if (empty($templateName)) {
|
||
continue;
|
||
}
|
||
if (0 === strpos($templateName, '$')) {
|
||
//支持加载变量文件名
|
||
$templateName = $this->get(substr($templateName, 1));
|
||
}
|
||
$template = $this->parseTemplateFile($templateName);
|
||
if ($template) {
|
||
// 获取模板文件内容
|
||
$parseStr .= file_get_contents($template);
|
||
}
|
||
}
|
||
return $parseStr;
|
||
}
|
||
|
||
/**
|
||
* 解析模板文件名
|
||
* @access private
|
||
* @param string $template 文件名
|
||
* @return string|false
|
||
*/
|
||
private function parseTemplateFile($template)
|
||
{
|
||
if ('' == pathinfo($template, PATHINFO_EXTENSION)) {
|
||
if (strpos($template, '@')) {
|
||
list($module, $template) = explode('@', $template);
|
||
}
|
||
if (0 !== strpos($template, '/')) {
|
||
$template = str_replace(['/', ':'], $this->config['view_depr'], $template);
|
||
} else {
|
||
$template = str_replace(['/', ':'], $this->config['view_depr'], substr($template, 1));
|
||
}
|
||
if ($this->config['view_base']) {
|
||
$module = isset($module) ? $module : Request::instance()->module();
|
||
$path = $this->config['view_base'] . ($module ? $module . DS : '');
|
||
} else {
|
||
$path = isset($module) ? APP_PATH . $module . DS . basename($this->config['view_path']) . DS : $this->config['view_path'];
|
||
}
|
||
$template = $path . $template . '.' . ltrim($this->config['view_suffix'], '.');
|
||
}
|
||
|
||
if (is_file($template)) {
|
||
// 记录模板文件的更新时间
|
||
$this->includeFile[$template] = filemtime($template);
|
||
return $template;
|
||
} else {
|
||
throw new TemplateNotFoundException('template not exists:' . $template, $template);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 按标签生成正则
|
||
* @access private
|
||
* @param string $tagName 标签名
|
||
* @return string
|
||
*/
|
||
private function getRegex($tagName)
|
||
{
|
||
$regex = '';
|
||
if ('tag' == $tagName) {
|
||
$begin = $this->config['tpl_begin'];
|
||
$end = $this->config['tpl_end'];
|
||
if (strlen(ltrim($begin, '\\')) == 1 && strlen(ltrim($end, '\\')) == 1) {
|
||
$regex = $begin . '((?:[\$]{1,2}[a-wA-w_]|[\:\~][\$a-wA-w_]|[+]{2}[\$][a-wA-w_]|[-]{2}[\$][a-wA-w_]|\/[\*\/])(?>[^' . $end . ']*))' . $end;
|
||
} else {
|
||
$regex = $begin . '((?:[\$]{1,2}[a-wA-w_]|[\:\~][\$a-wA-w_]|[+]{2}[\$][a-wA-w_]|[-]{2}[\$][a-wA-w_]|\/[\*\/])(?>(?:(?!' . $end . ').)*))' . $end;
|
||
}
|
||
} else {
|
||
$begin = $this->config['taglib_begin'];
|
||
$end = $this->config['taglib_end'];
|
||
$single = strlen(ltrim($begin, '\\')) == 1 && strlen(ltrim($end, '\\')) == 1 ? true : false;
|
||
switch ($tagName) {
|
||
case 'block':
|
||
if ($single) {
|
||
$regex = $begin . '(?:' . $tagName . '\b(?>(?:(?!name=).)*)\bname=([\'\"])(?P<name>[\$\w\-\/\.]+)\\1(?>[^' . $end . ']*)|\/' . $tagName . ')' . $end;
|
||
} else {
|
||
$regex = $begin . '(?:' . $tagName . '\b(?>(?:(?!name=).)*)\bname=([\'\"])(?P<name>[\$\w\-\/\.]+)\\1(?>(?:(?!' . $end . ').)*)|\/' . $tagName . ')' . $end;
|
||
}
|
||
break;
|
||
case 'literal':
|
||
if ($single) {
|
||
$regex = '(' . $begin . $tagName . '\b(?>[^' . $end . ']*)' . $end . ')';
|
||
$regex .= '(?:(?>[^' . $begin . ']*)(?>(?!' . $begin . '(?>' . $tagName . '\b[^' . $end . ']*|\/' . $tagName . ')' . $end . ')' . $begin . '[^' . $begin . ']*)*)';
|
||
$regex .= '(' . $begin . '\/' . $tagName . $end . ')';
|
||
} else {
|
||
$regex = '(' . $begin . $tagName . '\b(?>(?:(?!' . $end . ').)*)' . $end . ')';
|
||
$regex .= '(?:(?>(?:(?!' . $begin . ').)*)(?>(?!' . $begin . '(?>' . $tagName . '\b(?>(?:(?!' . $end . ').)*)|\/' . $tagName . ')' . $end . ')' . $begin . '(?>(?:(?!' . $begin . ').)*))*)';
|
||
$regex .= '(' . $begin . '\/' . $tagName . $end . ')';
|
||
}
|
||
break;
|
||
case 'restoreliteral':
|
||
$regex = '<!--###literal(\d+)###-->';
|
||
break;
|
||
case 'include':
|
||
$name = 'file';
|
||
case 'taglib':
|
||
case 'layout':
|
||
case 'extend':
|
||
if (empty($name)) {
|
||
$name = 'name';
|
||
}
|
||
if ($single) {
|
||
$regex = $begin . $tagName . '\b(?>(?:(?!' . $name . '=).)*)\b' . $name . '=([\'\"])(?P<name>[\$\w\-\/\.\:@,\\\\]+)\\1(?>[^' . $end . ']*)' . $end;
|
||
} else {
|
||
$regex = $begin . $tagName . '\b(?>(?:(?!' . $name . '=).)*)\b' . $name . '=([\'\"])(?P<name>[\$\w\-\/\.\:@,\\\\]+)\\1(?>(?:(?!' . $end . ').)*)' . $end;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
return '/' . $regex . '/is';
|
||
}
|
||
}
|