ThinkTemplate.class.php 32 KB

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  1. <?php
  2. // +----------------------------------------------------------------------
  3. // | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
  4. // +----------------------------------------------------------------------
  5. // | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
  6. // +----------------------------------------------------------------------
  7. // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
  8. // +----------------------------------------------------------------------
  9. // | Author: liu21st <liu21st@gmail.com>
  10. // +----------------------------------------------------------------------
  11. // $Id$
  12. /**
  13. +------------------------------------------------------------------------------
  14. * ThinkPHP内置模板引擎类
  15. * 支持XML标签和普通标签的模板解析
  16. * 编译型模板引擎 支持动态缓存
  17. +------------------------------------------------------------------------------
  18. * @category Think
  19. * @package Think
  20. * @subpackage Template
  21. * @author liu21st <liu21st@gmail.com>
  22. * @version $Id$
  23. +------------------------------------------------------------------------------
  24. */
  25. class ThinkTemplate extends Think
  26. {//类定义开始
  27. // 模板页面中引入的标签库列表
  28. protected $tagLib = array();
  29. // 当前模板文件
  30. protected $templateFile = '';
  31. // 模板变量
  32. public $tVar = array();
  33. public $config = array();
  34. private $literal = array();
  35. /**
  36. +----------------------------------------------------------
  37. * 取得模板实例对象
  38. * 静态方法
  39. +----------------------------------------------------------
  40. * @access public
  41. +----------------------------------------------------------
  42. * @return ThinkTemplate
  43. +----------------------------------------------------------
  44. */
  45. static public function getInstance()
  46. {
  47. return get_instance_of(__CLASS__);
  48. }
  49. /**
  50. +----------------------------------------------------------
  51. * 架构函数
  52. +----------------------------------------------------------
  53. * @access public
  54. +----------------------------------------------------------
  55. * @param array $config 模板引擎配置数组
  56. +----------------------------------------------------------
  57. */
  58. public function __construct(){
  59. $this->config['cache_path'] = C('CACHE_PATH');
  60. $this->config['template_suffix'] = C('TMPL_TEMPLATE_SUFFIX');
  61. $this->config['cache_suffix'] = C('TMPL_CACHFILE_SUFFIX');
  62. $this->config['tmpl_cache'] = C('TMPL_CACHE_ON');
  63. $this->config['cache_time'] = C('TMPL_CACHE_TIME');
  64. $this->config['taglib_begin'] = $this->stripPreg(C('TAGLIB_BEGIN'));
  65. $this->config['taglib_end'] = $this->stripPreg(C('TAGLIB_END'));
  66. $this->config['tmpl_begin'] = $this->stripPreg(C('TMPL_L_DELIM'));
  67. $this->config['tmpl_end'] = $this->stripPreg(C('TMPL_R_DELIM'));
  68. $this->config['default_tmpl'] = C('TMPL_FILE_NAME');
  69. $this->config['tag_level'] = C('TAG_NESTED_LEVEL');
  70. }
  71. private function stripPreg($str) {
  72. $str = str_replace(array('{','}','(',')','|','[',']'),array('\{','\}','\(','\)','\|','\[','\]'),$str);
  73. return $str;
  74. }
  75. // 模板变量获取和设置
  76. public function get($name) {
  77. if(isset($this->tVar[$name]))
  78. return $this->tVar[$name];
  79. else
  80. return false;
  81. }
  82. public function set($name,$value) {
  83. $this->tVar[$name]= $value;
  84. }
  85. // 加载模板
  86. public function load($templateFile,$templateVar,$charset) {
  87. $this->tVar = $templateVar;
  88. $templateCacheFile = $this->loadTemplate($templateFile);
  89. // 模板阵列变量分解成为独立变量
  90. extract($templateVar, EXTR_OVERWRITE);
  91. //载入模版缓存文件
  92. include $templateCacheFile;
  93. }
  94. /**
  95. +----------------------------------------------------------
  96. * 加载主模板并缓存
  97. +----------------------------------------------------------
  98. * @access public
  99. +----------------------------------------------------------
  100. * @param string $tmplTemplateFile 模板文件
  101. * @param string $varPrefix 模板变量前缀
  102. +----------------------------------------------------------
  103. * @return string
  104. +----------------------------------------------------------
  105. * @throws ThinkExecption
  106. +----------------------------------------------------------
  107. */
  108. public function loadTemplate ($tmplTemplateFile='')
  109. {
  110. if(empty($tmplTemplateFile)) $tmplTemplateFile = $this->config['default_tmpl'];
  111. if(!is_file($tmplTemplateFile)){
  112. $tmplTemplateFile = dirname($this->config['default_tmpl']).'/'.$tmplTemplateFile.$this->config['template_suffix'];
  113. if(!is_file($tmplTemplateFile))
  114. throw_exception(L('_TEMPLATE_NOT_EXIST_'));
  115. }
  116. $this->templateFile = $tmplTemplateFile;
  117. //根据模版文件名定位缓存文件
  118. $tmplCacheFile = $this->config['cache_path'].md5($tmplTemplateFile).$this->config['cache_suffix'];
  119. $tmplContent = '';
  120. // 检查Cache文件是否需要更新
  121. if (!$this->checkCache($tmplTemplateFile)) {
  122. // 需要更新模版 读出原模板内容
  123. $tmplContent = file_get_contents($tmplTemplateFile);
  124. //编译模板内容
  125. $tmplContent = $this->compiler($tmplContent);
  126. // 检测分组目录
  127. if(!is_dir($this->config['cache_path']))
  128. mk_dir($this->config['cache_path']);
  129. //重写Cache文件
  130. if( false === file_put_contents($tmplCacheFile,trim($tmplContent)))
  131. throw_exception(L('_CACHE_WRITE_ERROR_'));
  132. }
  133. return $tmplCacheFile;
  134. }
  135. /**
  136. +----------------------------------------------------------
  137. * 编译模板文件内容
  138. +----------------------------------------------------------
  139. * @access protected
  140. +----------------------------------------------------------
  141. * @param mixed $tmplContent 模板内容
  142. +----------------------------------------------------------
  143. * @return string
  144. +----------------------------------------------------------
  145. */
  146. protected function compiler( $tmplContent)
  147. {
  148. //模板解析
  149. $tmplContent = $this->parse($tmplContent);
  150. if(ini_get('short_open_tag'))
  151. // 开启短标签的情况要将<?标签用echo方式输出 否则无法正常输出xml标识
  152. $tmplContent = preg_replace('/(<\?(?!php|=|$))/i', '<?php echo \'\\1\'; ?>'."\n", $tmplContent );
  153. // 还原被替换的Literal标签
  154. $tmplContent = preg_replace('/<!--###literal(\d)###-->/eis',"\$this->restoreLiteral('\\1')",$tmplContent);
  155. // 添加安全代码
  156. $tmplContent = '<?php if (!defined(\'THINK_PATH\')) exit();?>'.$tmplContent;
  157. if(C('TMPL_STRIP_SPACE')) {
  158. /* 去除html空格与换行 */
  159. $find = array("~>\s+<~","~>(\s+\n|\r)~");
  160. $replace = array("><",">");
  161. $tmplContent = preg_replace($find, $replace, $tmplContent);
  162. }
  163. return trim($tmplContent);
  164. }
  165. /**
  166. +----------------------------------------------------------
  167. * 检查缓存文件是否有效
  168. * 如果无效则需要重新更新
  169. +----------------------------------------------------------
  170. * @access public
  171. +----------------------------------------------------------
  172. * @param string $tmplTemplateFile 模板文件名
  173. +----------------------------------------------------------
  174. * @return boolen
  175. +----------------------------------------------------------
  176. */
  177. protected function checkCache($tmplTemplateFile)
  178. {
  179. if (!$this->config['tmpl_cache']) // 优先对配置检测
  180. return false;
  181. $tmplCacheFile = $this->config['cache_path'].md5($tmplTemplateFile).$this->config['cache_suffix'];
  182. if(!is_file($tmplCacheFile)){
  183. return false;
  184. }elseif (filemtime($tmplTemplateFile) > filemtime($tmplCacheFile)) {
  185. // 模板文件如果有更新则缓存需要更新
  186. return false;
  187. }elseif ($this->config['cache_time'] != -1 && time() > filemtime($tmplCacheFile)+$this->config['cache_time']) {
  188. // 缓存是否在有效期
  189. return false;
  190. }
  191. //缓存有效
  192. return true;
  193. }
  194. /**
  195. +----------------------------------------------------------
  196. * 模板解析入口
  197. * 支持普通标签和TagLib解析 支持自定义标签库
  198. +----------------------------------------------------------
  199. * @access public
  200. +----------------------------------------------------------
  201. * @param string $content 要解析的模板内容
  202. +----------------------------------------------------------
  203. * @return string
  204. +----------------------------------------------------------
  205. */
  206. public function parse($content)
  207. {
  208. $begin = $this->config['taglib_begin'];
  209. $end = $this->config['taglib_end'];
  210. // 首先替换literal标签内容
  211. $content = preg_replace('/'.$begin.'literal'.$end.'(.*?)'.$begin.'\/literal'.$end.'/eis',"\$this->parseLiteral('\\1')",$content);
  212. // 获取需要引入的标签库列表
  213. // 标签库只需要定义一次,允许引入多个一次
  214. // 一般放在文件的最前面
  215. // 格式:<taglib name="html,mytag..." />
  216. // 当TAGLIB_LOAD配置为true时才会进行检测
  217. if(C('TAGLIB_LOAD')) {
  218. $this->getIncludeTagLib($content);
  219. if(!empty($this->tagLib)) {
  220. // 对导入的TagLib进行解析
  221. $_taglibs = C('_taglibs_');
  222. foreach($this->tagLib as $tagLibName) {
  223. // 内置标签库
  224. if(!import('Think.Template.TagLib.TagLib'.ucwords(strtolower($tagLibName)))) {
  225. // 扩展标签库
  226. if($_taglibs && isset($_taglibs[$tagLibName]))
  227. // 'tagLibName'=>'importPath'
  228. import($_taglibs[$tagLibName]);
  229. else
  230. throw_exception($tagLibName.L('_TAGLIB_NOT_EXIST_'));
  231. }
  232. $this->parseTagLib($tagLibName,$content);
  233. }
  234. }
  235. }
  236. // 预先加载的标签库 无需在每个模板中使用taglib标签加载
  237. if(C('TAGLIB_PRE_LOAD')) {
  238. $tagLibs = explode(',',C('TAGLIB_PRE_LOAD'));
  239. foreach ($taglibs as $tag){
  240. $this->parseTagLib($tag,$content);
  241. }
  242. }
  243. // 内置标签库 无需使用taglib标签导入就可以使用
  244. $tagLibs = explode(',',C('TAGLIB_BUILD_IN'));
  245. foreach ($tagLibs as $tag){
  246. $this->parseTagLib($tag,$content,true);
  247. }
  248. //解析普通模板标签 {tagName:}
  249. $content = preg_replace('/('.$this->config['tmpl_begin'].')(\S.+?)('.$this->config['tmpl_end'].')/eis',"\$this->parseTag('\\2')",$content);
  250. return $content;
  251. }
  252. /**
  253. +----------------------------------------------------------
  254. * 替换页面中的literal标签
  255. +----------------------------------------------------------
  256. * @access public
  257. +----------------------------------------------------------
  258. * @param string $content 模板内容
  259. +----------------------------------------------------------
  260. * @return string|false
  261. +----------------------------------------------------------
  262. */
  263. function parseLiteral($content) {
  264. if(trim($content)=='')
  265. return '';
  266. $content = stripslashes($content);
  267. $i = count($this->literal);
  268. $parseStr = "<!--###literal{$i}###-->";
  269. $this->literal[$i] = $content;
  270. return $parseStr;
  271. }
  272. /**
  273. +----------------------------------------------------------
  274. * 还原被替换的literal标签
  275. +----------------------------------------------------------
  276. * @access public
  277. +----------------------------------------------------------
  278. * @param string $tag literal标签序号
  279. +----------------------------------------------------------
  280. * @return string|false
  281. +----------------------------------------------------------
  282. */
  283. function restoreLiteral($tag) {
  284. // 还原literal标签
  285. $parseStr = $this->literal[$tag];
  286. // 销毁literal记录
  287. unset($this->literal[$tag]);
  288. return $parseStr;
  289. }
  290. /**
  291. +----------------------------------------------------------
  292. * 搜索模板页面中包含的TagLib库
  293. * 并返回列表
  294. +----------------------------------------------------------
  295. * @access public
  296. +----------------------------------------------------------
  297. * @param string $content 模板内容
  298. +----------------------------------------------------------
  299. * @return string|false
  300. +----------------------------------------------------------
  301. */
  302. public function getIncludeTagLib(& $content)
  303. {
  304. //搜索是否有TagLib标签
  305. $find = preg_match('/'.$this->config['taglib_begin'].'taglib\s(.+?)(\s*?)\/'.$this->config['taglib_end'].'\W/is',$content,$matches);
  306. if($find) {
  307. //替换TagLib标签
  308. $content = str_replace($matches[0],'',$content);
  309. //解析TagLib标签
  310. $tagLibs = $matches[1];
  311. $xml = '<tpl><tag '.$tagLibs.' /></tpl>';
  312. $xml = simplexml_load_string($xml);
  313. if(!$xml)
  314. throw_exception(L('_XML_TAG_ERROR_'));
  315. $xml = (array)($xml->tag->attributes());
  316. $array = array_change_key_case($xml['@attributes']);
  317. $this->tagLib = explode(',',$array['name']);
  318. }
  319. return;
  320. }
  321. /**
  322. +----------------------------------------------------------
  323. * TagLib库解析
  324. +----------------------------------------------------------
  325. * @access public
  326. +----------------------------------------------------------
  327. * @param string $tagLib 要解析的标签库
  328. * @param string $content 要解析的模板内容
  329. * @param boolen $hide 是否隐藏标签库前缀
  330. +----------------------------------------------------------
  331. * @return string
  332. +----------------------------------------------------------
  333. */
  334. public function parseTagLib($tagLib,&$content,$hide=false)
  335. {
  336. $begin = $this->config['taglib_begin'];
  337. $end = $this->config['taglib_end'];
  338. $tLib = Think::instance('TagLib'.ucwords(strtolower($tagLib)));
  339. if($tLib->valid()) {
  340. //如果标签库有效则取出支持标签列表
  341. $tagList = $tLib->getTagList();
  342. //遍历标签列表进行模板标签解析
  343. foreach($tagList as $tag) {
  344. // 实际要解析的标签名称
  345. if( !$hide)
  346. $startTag = $tagLib.':'.$tag['name'];
  347. else
  348. $startTag = $tag['name'];
  349. // 检查可嵌套标签以及嵌套级别
  350. if($tag['nested'] && $this->config['tag_level']>1)
  351. $level = $this->config['tag_level'];
  352. else
  353. $level = 1;
  354. $endTag = $startTag;
  355. if(false !== stripos($content,C('TAGLIB_BEGIN').$startTag)) {
  356. if(empty($tag['attribute'])){
  357. // 无属性标签
  358. if($tag['content'] !='empty'){
  359. for($i=0;$i<$level;$i++)
  360. $content = preg_replace('/'.$begin.$startTag.'(\s*?)'.$end.'(.*?)'.$begin.'\/'.$endTag.'(\s*?)'.$end.'/eis',"\$this->parseXmlTag('".$tagLib."','".$tag['name']."','\\1','\\2')",$content);
  361. }else{
  362. $content = preg_replace('/'.$begin.$startTag.'(\s*?)\/(\s*?)'.$end.'/eis',"\$this->parseXmlTag('".$tagLib."','".$tag['name']."','\\1','')",$content);
  363. }
  364. }elseif($tag['content'] !='empty') {//闭合标签解析
  365. for($i=0;$i<$level;$i++)
  366. $content = preg_replace('/'.$begin.$startTag.'\s(.*?)'.$end.'(.+?)'.$begin.'\/'.$endTag.'(\s*?)'.$end.'/eis',"\$this->parseXmlTag('".$tagLib."','".$tag['name']."','\\1','\\2')",$content);
  367. }else {//开放标签解析
  368. // 开始标签必须有一个空格
  369. $content = preg_replace('/'.$begin.$startTag.'\s(.*?)\/(\s*?)'.$end.'/eis',"\$this->parseXmlTag('".$tagLib."','".$tag['name']."','\\1','')",$content);
  370. }
  371. }
  372. }
  373. }
  374. }
  375. /**
  376. +----------------------------------------------------------
  377. * 解析标签库的标签
  378. * 需要调用对应的标签库文件解析类
  379. +----------------------------------------------------------
  380. * @access public
  381. +----------------------------------------------------------
  382. * @param string $tagLib 标签库名称
  383. * @param string $tag 标签名
  384. * @param string $attr 标签属性
  385. * @param string $content 标签内容
  386. +----------------------------------------------------------
  387. * @return string|false
  388. +----------------------------------------------------------
  389. */
  390. public function parseXmlTag($tagLib,$tag,$attr,$content)
  391. {
  392. //if (MAGIC_QUOTES_GPC) {
  393. $attr = stripslashes($attr);
  394. $content = stripslashes($content);
  395. //}
  396. if(ini_get('magic_quotes_sybase'))
  397. $attr = str_replace('\"','\'',$attr);
  398. $tLib = get_instance_of('TagLib'.ucwords(strtolower($tagLib)));
  399. if($tLib->valid()) {
  400. $parse = '_'.$tag;
  401. $content = trim($content);
  402. return $tLib->$parse($attr,$content);
  403. }
  404. }
  405. /**
  406. +----------------------------------------------------------
  407. * 模板标签解析
  408. * 格式: {TagName:args [|content] }
  409. +----------------------------------------------------------
  410. * @access public
  411. +----------------------------------------------------------
  412. * @param string $tagStr 标签内容
  413. +----------------------------------------------------------
  414. * @return string
  415. +----------------------------------------------------------
  416. */
  417. public function parseTag($tagStr){
  418. //if (MAGIC_QUOTES_GPC) {
  419. $tagStr = stripslashes($tagStr);
  420. //}
  421. //还原非模板标签
  422. if(preg_match('/^[\s|\d]/is',$tagStr))
  423. //过滤空格和数字打头的标签
  424. return C('TMPL_L_DELIM') . $tagStr .C('TMPL_R_DELIM');
  425. $flag = substr($tagStr,0,1);
  426. $name = substr($tagStr,1);
  427. if('$' == $flag){
  428. //解析模板变量 格式 {$varName}
  429. return $this->parseVar($name);
  430. }elseif(':' == $flag){
  431. // 输出某个函数的结果
  432. return '<?php echo '.$name.';?>';
  433. }elseif('~' == $flag){
  434. // 执行某个函数
  435. return '<?php '.$name.';?>';
  436. }elseif('&' == $flag){
  437. // 输出配置参数
  438. return '<?php echo C("'.$name.'");?>';
  439. }elseif('%' == $flag){
  440. // 输出语言变量
  441. return '<?php echo L("'.$name.'");?>';
  442. }elseif('@' == $flag){
  443. // 输出SESSION变量
  444. if(strpos($name,'.')) {
  445. $array = explode('.',$name);
  446. return '<?php echo $_SESSION["'.$array[0].'"]["'.$array[1].'"];?>';
  447. }else{
  448. return '<?php echo $_SESSION["'.$name.'"];?>';
  449. }
  450. }elseif('#' == $flag){
  451. // 输出COOKIE变量
  452. if(strpos($name,'.')) {
  453. $array = explode('.',$name);
  454. return '<?php echo $_COOKIE["'.$array[0].'"]["'.$array[1].'"];?>';
  455. }else{
  456. return '<?php echo $_COOKIE["'.$name.'"];?>';
  457. }
  458. }elseif('.' == $flag){
  459. // 输出GET变量
  460. return '<?php echo $_GET["'.$name.'"];?>';
  461. }elseif('^' == $flag){
  462. // 输出POST变量
  463. return '<?php echo $_POST["'.$name.'"];?>';
  464. }elseif('*' == $flag){
  465. // 输出常量
  466. return '<?php echo constant("'.$name.'");?>';
  467. }
  468. $tagStr = trim($tagStr);
  469. if(substr($tagStr,0,2)=='//' || (substr($tagStr,0,2)=='/*' && substr($tagStr,-2)=='*/'))
  470. //注释标签
  471. return '';
  472. //解析其它标签
  473. //统一标签格式 {TagName:args [|content]}
  474. $pos = strpos($tagStr,':');
  475. $tag = substr($tagStr,0,$pos);
  476. $args = trim(substr($tagStr,$pos+1));
  477. //解析标签内容
  478. if(!empty($args)) {
  479. $tag = strtolower($tag);
  480. switch($tag){
  481. case 'include':
  482. return $this->parseInclude($args);
  483. break;
  484. case 'load':
  485. return $this->parseLoad($args);
  486. break;
  487. //这里扩展其它标签
  488. //…………
  489. default:
  490. if(C('TAG_EXTEND_PARSE')) {
  491. $method = C('TAG_EXTEND_PARSE');
  492. if(array_key_exists($tag,$method))
  493. return $method[$tag]($args);
  494. }
  495. }
  496. }
  497. return C('TMPL_L_DELIM') . $tagStr .C('TMPL_R_DELIM');
  498. }
  499. /**
  500. +----------------------------------------------------------
  501. * 加载js或者css文件
  502. * {load:__PUBLIC__/Js/Think/ThinkAjax.js} 加载js文件
  503. * {load:__PUBLIC__/Css/style.css} 加载css文件
  504. +----------------------------------------------------------
  505. * @access public
  506. +----------------------------------------------------------
  507. * @param string $params 参数
  508. +----------------------------------------------------------
  509. * @return string
  510. +----------------------------------------------------------
  511. */
  512. public function parseLoad($str) {
  513. $type = strtolower(substr(strrchr($str, '.'),1));
  514. $parseStr = '';
  515. if($type=='js') {
  516. $parseStr .= '<script type="text/javascript" src="'.$str.'"></script>';
  517. }elseif($type=='css') {
  518. $parseStr .= '<link rel="stylesheet" type="text/css" href="'.$str.'" />';
  519. }
  520. return $parseStr;
  521. }
  522. /**
  523. +----------------------------------------------------------
  524. * 模板变量解析,支持使用函数
  525. * 格式: {$varname|function1|function2=arg1,arg2}
  526. +----------------------------------------------------------
  527. * @access public
  528. +----------------------------------------------------------
  529. * @param string $varStr 变量数据
  530. +----------------------------------------------------------
  531. * @return string
  532. +----------------------------------------------------------
  533. */
  534. public function parseVar($varStr){
  535. $varStr = trim($varStr);
  536. static $_varParseList = array();
  537. //如果已经解析过该变量字串,则直接返回变量值
  538. if(isset($_varParseList[$varStr])) return $_varParseList[$varStr];
  539. $parseStr ='';
  540. $varExists = true;
  541. if(!empty($varStr)){
  542. $varArray = explode('|',$varStr);
  543. //取得变量名称
  544. $var = array_shift($varArray);
  545. //非法变量过滤 不允许在变量里面使用 ->
  546. //TODO:还需要继续完善
  547. if(preg_match('/->/is',$var))
  548. return '';
  549. if('Think.' == substr($var,0,6)){
  550. // 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
  551. $name = $this->parseThinkVar($var);
  552. }
  553. elseif( false !== strpos($var,'.')) {
  554. //支持 {$var.property}
  555. $vars = explode('.',$var);
  556. $var = array_shift($vars);
  557. switch(strtolower(C('TMPL_VAR_IDENTIFY'))) {
  558. case 'array': // 识别为数组
  559. $name = '$'.$var;
  560. foreach ($vars as $key=>$val)
  561. $name .= '["'.$val.'"]';
  562. break;
  563. case 'obj': // 识别为对象
  564. $name = '$'.$var;
  565. foreach ($vars as $key=>$val)
  566. $name .= '->'.$val;
  567. break;
  568. default: // 自动判断数组或对象 只支持二维
  569. $name = 'is_array($'.$var.')?$'.$var.'["'.$vars[0].'"]:$'.$var.'->'.$vars[0];
  570. }
  571. }
  572. elseif(false !==strpos($var,':')){
  573. //支持 {$var:property} 方式输出对象的属性
  574. $vars = explode(':',$var);
  575. $var = str_replace(':','->',$var);
  576. $name = "$".$var;
  577. $var = $vars[0];
  578. }
  579. elseif(false !== strpos($var,'[')) {
  580. //支持 {$var['key']} 方式输出数组
  581. $name = "$".$var;
  582. preg_match('/(.+?)\[(.+?)\]/is',$var,$match);
  583. $var = $match[1];
  584. }
  585. else {
  586. $name = "$$var";
  587. }
  588. //对变量使用函数
  589. if(count($varArray)>0)
  590. $name = $this->parseVarFunction($name,$varArray);
  591. $parseStr = '<?php echo ('.$name.'); ?>';
  592. }
  593. $_varParseList[$varStr] = $parseStr;
  594. return $parseStr;
  595. }
  596. /**
  597. +----------------------------------------------------------
  598. * 对模板变量使用函数
  599. * 格式 {$varname|function1|function2=arg1,arg2}
  600. +----------------------------------------------------------
  601. * @access public
  602. +----------------------------------------------------------
  603. * @param string $name 变量名
  604. * @param array $varArray 函数列表
  605. +----------------------------------------------------------
  606. * @return string
  607. +----------------------------------------------------------
  608. */
  609. public function parseVarFunction($name,$varArray){
  610. //对变量使用函数
  611. $length = count($varArray);
  612. //取得模板禁止使用函数列表
  613. $template_deny_funs = explode(',',C('TMPL_DENY_FUNC_LIST'));
  614. for($i=0;$i<$length ;$i++ ){
  615. if (0===stripos($varArray[$i],'default='))
  616. $args = explode('=',$varArray[$i],2);
  617. else
  618. $args = explode('=',$varArray[$i]);
  619. //模板函数过滤
  620. $args[0] = trim($args[0]);
  621. switch(strtolower($args[0])) {
  622. case 'default': // 特殊模板函数
  623. $name = '('.$name.')?('.$name.'):'.$args[1];
  624. break;
  625. default: // 通用模板函数
  626. if(!in_array($args[0],$template_deny_funs)){
  627. if(isset($args[1])){
  628. if(strstr($args[1],'###')){
  629. $args[1] = str_replace('###',$name,$args[1]);
  630. $name = "$args[0]($args[1])";
  631. }else{
  632. $name = "$args[0]($name,$args[1])";
  633. }
  634. }else if(!empty($args[0])){
  635. $name = "$args[0]($name)";
  636. }
  637. }
  638. }
  639. }
  640. return $name;
  641. }
  642. /**
  643. +----------------------------------------------------------
  644. * 特殊模板变量解析
  645. * 格式 以 $Think. 打头的变量属于特殊模板变量
  646. +----------------------------------------------------------
  647. * @access public
  648. +----------------------------------------------------------
  649. * @param string $varStr 变量字符串
  650. +----------------------------------------------------------
  651. * @return string
  652. +----------------------------------------------------------
  653. */
  654. public function parseThinkVar($varStr){
  655. $vars = explode('.',$varStr);
  656. $vars[1] = strtoupper(trim($vars[1]));
  657. $parseStr = '';
  658. if(count($vars)>=3){
  659. $vars[2] = trim($vars[2]);
  660. switch($vars[1]){
  661. case 'SERVER':
  662. $parseStr = '$_SERVER[\''.strtoupper($vars[2]).'\']';break;
  663. case 'GET':
  664. $parseStr = '$_GET[\''.$vars[2].'\']';break;
  665. case 'POST':
  666. $parseStr = '$_POST[\''.$vars[2].'\']';break;
  667. case 'COOKIE':
  668. if(isset($vars[3])) {
  669. $parseStr = '$_COOKIE[\''.$vars[2].'\'][\''.$vars[3].'\']';
  670. }else{
  671. $parseStr = '$_COOKIE[\''.$vars[2].'\']';
  672. }break;
  673. case 'SESSION':
  674. if(isset($vars[3])) {
  675. $parseStr = '$_SESSION[\''.$vars[2].'\'][\''.$vars[3].'\']';
  676. }else{
  677. $parseStr = '$_SESSION[\''.$vars[2].'\']';
  678. }
  679. break;
  680. case 'ENV':
  681. $parseStr = '$_ENV[\''.$vars[2].'\']';break;
  682. case 'REQUEST':
  683. $parseStr = '$_REQUEST[\''.$vars[2].'\']';break;
  684. case 'CONST':
  685. $parseStr = strtoupper($vars[2]);break;
  686. case 'LANG':
  687. $parseStr = 'L("'.$vars[2].'")';break;
  688. case 'CONFIG':
  689. if(isset($vars[3])) {
  690. $vars[2] .= '.'.$vars[3];
  691. }
  692. $parseStr = 'C("'.$vars[2].'")';break;
  693. default:break;
  694. }
  695. }else if(count($vars)==2){
  696. switch($vars[1]){
  697. case 'NOW':
  698. $parseStr = "date('Y-m-d g:i a',time())";
  699. break;
  700. case 'VERSION':
  701. $parseStr = 'THINK_VERSION';
  702. break;
  703. case 'TEMPLATE':
  704. $parseStr = 'C("TMPL_FILE_NAME")';
  705. break;
  706. case 'LDELIM':
  707. $parseStr = 'C("TMPL_L_DELIM")';
  708. break;
  709. case 'RDELIM':
  710. $parseStr = 'C("TMPL_R_DELIM")';
  711. break;
  712. default:
  713. if(defined($vars[1]))
  714. $parseStr = $vars[1];
  715. }
  716. }
  717. return $parseStr;
  718. }
  719. /**
  720. +----------------------------------------------------------
  721. * 加载公共模板并缓存 和当前模板在同一路径,否则使用相对路径
  722. +----------------------------------------------------------
  723. * @access public
  724. +----------------------------------------------------------
  725. * @param string $tmplPublicName 公共模板文件名
  726. +----------------------------------------------------------
  727. * @return string
  728. +----------------------------------------------------------
  729. */
  730. public function parseInclude($tmplPublicName){
  731. if(substr($tmplPublicName,0,1)=='$')
  732. //支持加载变量文件名
  733. $tmplPublicName = $this->get(substr($tmplPublicName,1));
  734. if(is_file($tmplPublicName)) {
  735. // 直接包含文件
  736. $parseStr = file_get_contents($tmplPublicName);
  737. }else {
  738. $tmplPublicName = trim($tmplPublicName);
  739. if(strpos($tmplPublicName,'@')){
  740. // 引入其它模块的操作模板
  741. $tmplTemplateFile = dirname(dirname(dirname($this->templateFile))).'/'.str_replace(array('@',':'),'/',$tmplPublicName);
  742. }elseif(strpos($tmplPublicName,':')){
  743. // 引入其它模块的操作模板
  744. $tmplTemplateFile = dirname(dirname($this->templateFile)).'/'.str_replace(':','/',$tmplPublicName);
  745. }else{
  746. // 默认导入当前模块下面的模板
  747. $tmplTemplateFile = dirname($this->templateFile).'/'.$tmplPublicName;
  748. }
  749. $tmplTemplateFile .= $this->config['template_suffix'];
  750. $parseStr = file_get_contents($tmplTemplateFile);
  751. }
  752. //再次对包含文件进行模板分析
  753. return $this->parse($parseStr);
  754. }
  755. }//类定义结束
  756. ?>