PHPテンプレート解析クラスの例

';//     
 private $template_c = '';//    
 private $template_path = '';//       
 private $template_name = '';//     index.html
 //            
 private $tag_foreach = array('from', 'item', 'key');
 private $tag_include = array('file');//             
 public function __construct($conf) {
  $this->conf = &$conf;
  $this->template_c = $this->conf['template_config']['template_c'];//    
  $this->_tpl_suffix = $this->tpl_suffix();
 }
 private function str_replace($search, $replace, $content) {
  if(empty($search) || empty($replace) || empty($content)) return false;
  return str_replace($search, $replace, $content);
 }
 /**
  * preg_match_all
  * @param $pattern   
  * @param $content   
  * @return array
  */
 private function preg_match_all($pattern, $content) {
  if(empty($pattern) || empty($content)) core::show_error('        !');
  preg_match_all("/".$this->template_tag_left.$pattern.$this->template_tag_right."/is", $content, $match);
  return $match;
 }
 /**
  *        
  */
 public function tpl_suffix() {
  $tpl_suffix = empty($this->conf['template_config']['template_suffix']) ? 
       $this->tpl_suffix : 
       $this->conf['template_config']['template_suffix'] ;
  return $tpl_suffix;
 }
 /**
  *       
  * @return 
  */
 public function assign($key, $value) {
  $this->vars[$key] = $value;
 }
 /**
  *     
  * @param 
  *      1
  * $this->view->display('error', 'comm/');
  *      TPL      ，  comm/   tpl/comm/error.html
  *      2
  * $this->view->display('errorfile'); 
  *              
  *         http://heartphp/admin/index,         tpl/admin/index/errorfile.html
  * @return 
  */
 public function display($filename = '', $view_path = '') {
  $tpl_path_arr = $this->get_tpl($filename, $view_path);//  TPL                  
  if(!$tpl_path_arr) core::show_error($filename.$this->_tpl_suffix.'     ');
  //    
  $this->view_path_param = $view_path;//            
  $this->compile();
 }
 /**
  *      
  * @param 
  * @return 
  */
 private function compile() {
  $filepath = $this->template_path.$this->template_name;
  $compile_dirpath = $this->check_temp_compile();
  $vars_template_c_name = str_replace($this->_tpl_suffix, '', $this->template_name);
  $include_file = $this->template_replace($this->read_file($filepath), $compile_dirpath, $vars_template_c_name);//  
  if($include_file) {
   $this->read_config() && $config = $this->read_config();
   extract($this->vars, EXTR_SKIP);
   [url=home.php?mod=space&uid=48608]@include[/url] $include_file;
  }
 }
 /**
  *           
  */
 protected function read_config() {
  if(file_exists(SYSTEM_PATH.'conf/config.php')) {
   @include SYSTEM_PATH.'conf/config.php'; 
   return $config;
  }
  return false;
 }
 /**
  *       
  * @param $str   
  * @param $compile_dirpath       
  * @param $vars_template_c_name        
  * @return     PHP     
  */
 private function template_replace($str, $compile_dirpath, $vars_template_c_name) {
  if(empty($str)) core::show_error('      ！');
  //      
  $compile_path = $compile_dirpath.$vars_template_c_name.$this->tpl_compile_suffix;//    
  if(is_file($compile_path)) {
   //$header_content = $this->get_compile_header($compile_path);
   //$compile_date = $this->get_compile_header_comment($header_content);
   $tpl_filemtime = filemtime($this->template_path.$this->template_name);
   $compile_filemtime = filemtime($compile_path);
   //echo $tpl_filemtime.'=='.date('Y-m-d H:i:s', $tpl_filemtime).'
';
   //echo $compile_filemtime.'=='.date('Y-m-d H:i:s', $compile_filemtime);
   //               include            
   //    include    ， DEBUG                     include    ，          ，   ，    ，            DEBUG=1        include     。     ，        
   if($tpl_filemtime > $compile_filemtime || DEBUG) {
    $ret_file = $this->compile_file($vars_template_c_name, $str, $compile_dirpath);
   } else {
    $ret_file = $compile_path;
   }
  } else {//           
   $ret_file = $this->compile_file($vars_template_c_name, $str, $compile_dirpath);
  }
  return $ret_file;
 }
 /**
  *       
  * @param string $str   
  * @return html
  */
 private function body_content($str) {
  //  
  $str = $this->parse($str);
  $header_comment = "Create On##".time()."|Compiled from##".$this->template_path.$this->template_name;
  $content = " if(!defined('IS_HEARTPHP')) exit('Access Denied');/*{$header_comment}*/?>\r
$str";
  return $content;
 }
 /**
  *           
  * @param $content     
  */
 private function parse($content) {
  //foreach
  $content = $this->parse_foreach($content);
  //include
  $content = $this->parse_include($content);
  //if
  $content = $this->parse_if($content);
  //elseif
  $content = $this->parse_elseif($content);
  //        
  $content = $this->parse_comm($content); 
  //  PHP  
  $content = $this->parse_php($content);
  return $content;
 }
 /**
  * echo           
  */
 private function parse_echo($content) {
 }
 /**
  *    PHP
  * @param $content html     
  * @return html     HTML
  */
 private function parse_php($content){
  if(empty($content)) return false;
  $content = preg_replace("/".$this->template_tag_left."(.+?)".$this->template_tag_right."/is", "", $content);
  return $content;
 }
 /**
  * if    
  * 
  * zhang
  * 
  * liang
  * 
  * zhangliang
  * 
  */
 private function parse_if($content) {
  if(empty($content)) return false;
  //preg_match_all("/".$this->template_tag_left."if\s+(.*?)".$this->template_tag_right."/is", $content, $match);
  $match = $this->preg_match_all("if\s+(.*?)", $content);
  if(!isset($match[1]) || !is_array($match[1])) return $content;
  foreach($match[1] as $k => $v) {
   //$s = preg_split("/\s+/is", $v);
   //$s = array_filter($s);
   $content = str_replace($match[0][$k], "", $content);
  }
  return $content;
 }
 private function parse_elseif($content) {
  if(empty($content)) return false;
  //preg_match_all("/".$this->template_tag_left."elseif\s+(.*?)".$this->template_tag_right."/is", $content, $match);
  $match = $this->preg_match_all("elseif\s+(.*?)", $content);
  if(!isset($match[1]) || !is_array($match[1])) return $content;
  foreach($match[1] as $k => $v) {
   //$s = preg_split("/\s+/is", $v);
   //$s = array_filter($s);
   $content = str_replace($match[0][$k], "", $content);
  }
  return $content;
 }
 /**
  *    include include                            ，   include            
  *              DEBUG                  
  *      
  * @param $content     
  * @return html
  */
 private function parse_include($content) {
  if(empty($content)) return false;
  //preg_match_all("/".$this->template_tag_left."include\s+(.*?)".$this->template_tag_right."/is", $content, $match);
  $match = $this->preg_match_all("include\s+(.*?)", $content);
  if(!isset($match[1]) || !is_array($match[1])) return $content;
  foreach($match[1] as $match_key => $match_value) {
   $a = preg_split("/\s+/is", $match_value);
   $new_tag = array();
   //    
   foreach($a as $t) {
    $b = explode('=', $t);
    if(in_array($b[0], $this->tag_include)) {
     if(!empty($b[1])) {
      $new_tag[$b[0]] = str_replace("\"", "", $b[1]);
     } else {
      core::show_error('       !');
     }
    }
   }
   extract($new_tag);
   //      
   foreach($this->conf['view_path'] as $v){
    $conf_view_tpl = $v.$file;//include     
    if(is_file($conf_view_tpl)) {
     $c = $this->read_file($conf_view_tpl);
     $inc_file = str_replace($this->_tpl_suffix, '', basename($file));
     $this->view_path_param = dirname($file).'/';
     $compile_dirpath = $this->check_temp_compile();
     $include_file = $this->template_replace($c, $compile_dirpath, $inc_file);//  
     break;
    } else {
     core::show_error('       ,        :'. $conf_view_tpl);
    }
   } 
   $content = str_replace($match[0][$match_key], '', $content);
  }
  return $content;
 }
 /**
  *    foreach
  *      
  * @param $content     
  * @return html       
  */
 private function parse_foreach($content) {
  if(empty($content)) return false;
  //preg_match_all("/".$this->template_tag_left."foreach\s+(.*?)".$this->template_tag_right."/is", $content, $match);
  $match = $this->preg_match_all("foreach\s+(.*?)", $content);
  if(!isset($match[1]) || !is_array($match[1])) return $content;
  foreach($match[1] as $match_key => $value) {
   $split = preg_split("/\s+/is", $value);
   $split = array_filter($split);
   $new_tag = array();
   foreach($split as $v) {
    $a = explode("=", $v);
    if(in_array($a[0], $this->tag_foreach)) {//            
     $new_tag[$a[0]] = $a[1];
    }
   }
   $key = '';
   extract($new_tag);
   $key = ($key) ? '$'.$key.' =>' : '' ;
   $s = '';
   $content = $this->str_replace($match[0][$match_key], $s, $content);
  }
  return $content;
 }
 /**
  *         
  */
 private function parse_comm($content) {
  $search = array(
   "/".$this->template_tag_left."\/foreach".$this->template_tag_right."/is",
   "/".$this->template_tag_left."\/if".$this->template_tag_right."/is",
   "/".$this->template_tag_left."else".$this->template_tag_right."/is",
  );
  $replace = array(
   "",
   "",
   ""
  );
  $content = preg_replace($search, $replace, $content);
  return $content;
 }
 /**
  *                      
  * @param string $path       
  * @return     
  */
 private function check_temp_compile() {
  //$paht = $this->template_c.
  $tpl_path = ($this->view_path_param) ? $this->view_path_param : $this->get_tpl_path() ;
  $all_tpl_apth = $this->template_c.$tpl_path;
  if(!is_dir($all_tpl_apth)) {
   $this->create_dir($tpl_path);
  }
  return $all_tpl_apth;
 }
 /**
  *    
  * @param string $path       
  * @return     
  */
 private function read_file($path) {
  //$this->check_file_limits($path, 'r');
  if(($r = @fopen($path, 'r')) === false) {
   core::show_error('             ，   ！');
  }
  $content = fread($r, filesize($path));
  fclose($r);
  return $content;
 }
 /**
  *    
  * @param string $filename    
  * @param string $content     
  * @return    
  */
 private function compile_file($filename, $content, $dir) {
  if(empty($filename)) core::show_error("{$filename} Creation failed");
  $content = $this->body_content($content);//       
  //echo '     =====';
  $f = $dir.$filename.$this->tpl_compile_suffix;
  //$this->check_file_limits($f, 'w');
  if(($fp = @fopen($f, 'wb')) === false) {
   core::show_error($f.'
      ，       .');
  }
  //  flock
  flock($fp, LOCK_EX + LOCK_NB);
  fwrite($fp, $content, strlen($content));
  flock($fp, LOCK_UN + LOCK_NB);
  fclose($fp);
  return $f;
 }
 /**
  *                 
  * @param [$path] [  ]
  * @param [status] [w=write, r=read]
  */
 public function check_file_limits($path , $status = 'rw') {
  clearstatcache();
  if(!is_writable($path) && $status == 'w') {
   core::show_error("{$path}
      ，   .");
  } elseif(!is_readable($path) && $status == 'r') {
   core::show_error("{$path}
      ，   .");
  } elseif($status == 'rw') {//check wirte and read
   if(!is_writable($path) || !is_readable($path)) {
    core::show_error("{$path}
         ，   ");
   }
  }
 }
 /**
  *                   
  * @param string $filepath     
  * @param number $line    
  * @return            
  */
 /*
 private function get_compile_header($filepath, $line = 0) {
  if(($file_arr = @file($filepath)) === false) {
   core::show_error($filepath.'
      ，       ！');
  }
  return $file_arr[0];
 }
 */
 /**
  *          
  * @param string $cotnent          
  * @return         
  */
 /*
 private function get_compile_header_comment($content) {
  preg_match("/\/\*(.*?)\*\//", $content, $match);
  if(!isset($match[1]) || empty($match[1])) core::show_error('    !'); 
  $arr = explode('|', $match[1]);
  $arr_date = explode('##', $arr[0]);
  return $arr_date[1];
 }
 */
 /**
  *                  
  * @param string $filename    
  * @param string $view_path      
  * @return 
  */
 private function get_tpl($filename, $view_path) {
  empty($filename) && $filename = $this->tpl_name;
  //      
  foreach($this->conf['view_path'] as $path) {
   if($view_path) {//   tpl      
    $tpl_path = $path.$view_path;
    $view_file_path = $tpl_path.$filename.$this->_tpl_suffix;
   } else {//    ，   ，       
    $view_file_path = ($tpl_path = $this->get_tpl_path($path)) ? $tpl_path.$filename.$this->_tpl_suffix : exit(0);
   }
   if(is_file($view_file_path)) {
    //              
    $this->template_path = $tpl_path;//
    $this->template_name = $filename.$this->_tpl_suffix;
    return true;
   } else {
    core::show_error($filename.$this->_tpl_suffix.'     ');
   }
  }
 }
 /**
  *       
  * @param string $path    
  * @return URL D M     
  */
 private function get_tpl_path($path = '') {
  core::get_directory_name() && $path_arr[0] = core::get_directory_name();
  core::get_controller_name() && $path_arr[1] = core::get_controller_name();
  (is_array($path_arr)) ? $newpath = implode('/', $path_arr) : core::show_error('        !') ;
  return $path.$newpath.'/';
 }
 /**
  *     
  * @param string $path   
  * @return 
  */
 private function create_dir($path, $mode = 0777){
  if(is_dir($path)) return false;
  $dir_arr = explode('/', $path);
  $dir_arr = array_filter($dir_arr);
  $allpath = '';
  $newdir = $this->template_c;
  foreach($dir_arr as $dir) {
   $allpath = $newdir.'/'.$dir;
   if(!is_dir($allpath)) {
    $newdir = $allpath;
    if(!@mkdir($allpath, $mode)) {
     core::show_error( $allpath.'
      ，           ！');
    }
    chmod($allpath, $mode);
   } else {
    $newdir = $allpath;
   }
  }
  return true;
 }
 public function __destruct(){
  $this->vars = null;
  $this->view_path_param = null;
 }
}