smarty的插件文件是怎么引入的

/**
     * Takes unknown classes and loads plugin files for them
     * class name format: Smarty_PluginType_PluginName
     * plugin filename format: plugintype.pluginname.php
     *
     * @param  string $plugin_name class plugin name to load
     * @param  bool   $check       check if already loaded
     * @return string |boolean filepath of loaded file or false
     */
    public function loadPlugin($plugin_name, $check = true)

我厂可是Java和PHP都在用的，PHP的种种又怎么会不知道。至于smarty算不算烂，我个人觉得是除出了原生PHP外的最好选择。就楼上用正则搞得这种练手的东西，就不做评价了。我也写过类似的模板引擎，但最终还是选择了用smarty或者直接PHP代码.单纯的使用正则和语法糖不能解决问题，反而会引入问题。只有像smarty和twig这种基于parse的模板引擎，才能把扩展性和兼容性做到最好。

我也没空测试和细看，就随便问几个问题，这也是我在写PHP的模板引擎过程中先后遇到的问题：

1.任意目录递归include的问题是否实现，也就是所谓的子模板和layout？
2.多层变量/多维数组解析是否实现，比如blog.user.name；
3.在标签里直接调用PHP内置函数和自定义函数是否实现？
4.类似smarty里的module和plugin你又如何解决？没有这个东西的话，模板引擎会比PHP还复杂；
5.报错的处理。如果模板里有语法错误，报错能否精确到模板的精确行，而不是一堆莫名其妙的错误提示？

如果不能很好的解决上面提到的几个问题，那还不如原生PHP。

/**
     * Takes unknown classes and loads plugin files for them
     * class name format: Smarty_PluginType_PluginName
     * plugin filename format: plugintype.pluginname.php
     *
     * @param  string $plugin_name class plugin name to load
     * @param  bool   $check       check if already loaded
     * @return string |boolean filepath of loaded file or false
     */
    public function loadPlugin($plugin_name, $check = true)

/**
     * Takes unknown classes and loads plugin files for them
     * class name format: Smarty_PluginType_PluginName
     * plugin filename format: plugintype.pluginname.php
     *
     * @param  string $plugin_name class plugin name to load
     * @param  bool   $check       check if already loaded
     * @return string |boolean filepath of loaded file or false
     */
    public function loadPlugin($plugin_name, $check = true)

几乎所有的烂玩意, 你都如此熟悉

你用什么时间来做真正有意义的事情呢?

让你看看什么叫做 Template:

<?php defined('APPPATH') OR die('No direct access allowed.');
/**
 * Univeral Template Lang(UTL)
 * Copyright (C) 2010 anthony.chen
 * The placeholder is "{}", blank is not allowed
 *
 * A. Say "No" to: 
 * 1. <%variable%> involves pressing shift twice 
 * 2. Smarty's {$variable} syntax is even too much 
 * B. Say "Yes" to: 
 * 1. {variable} 
 *    {$localvariable} 
 * 2. {objectVariable.member} 
 * 3. {arrayVariable['title']} 
 * 4. {if:thisVariableHasValue} 
 * 		Output here 
 *    {else} 
 *   	Alternative output here 
 *    {end} 
 * 5. {foreach:dataArray,i,value} 
 *    {i}: {value}<br /> 
 *    {end} 
 * 6. {switch:variable} 
 *    <b>default case</b> 
 * 	  {case:testVariable} 
 * 		<b>variable:</b> testVariable 
 *    {case:'textual value'} 
 *     <b>variable:</b> 'textual value' 
 *    {endswitch} 
 * 7. {rows[0]['name']} 
 * 8. {currency(dollarAmount)} - format dollarAmount using the currency() function (previously defined) 
 * 	  {Finanace::currency(dollarAmount)} - format dollarAmount using the currency() function (previously defined) 
 * 9. {set:$var,$value}
 *    {set:$var,'charvalue'}
 * 10.{equals:$var,$value}
 *    {equals:$var,'charvalue'}
 * 11.{include:template,[TRUE/FALSE]} - include the template, optional explicit assign israw, 
 *                                    - The israw inherited if not assigned
 * C. Package Scope Support
 * 1. If the pkg_path is set for the UTL object, the %PKG_PATH% will be
 * 	  replaced by Package Path in include command
 *
 */

class UTL {
	protected $compileDirectory = null; // directory to cache template files in. defaults to /tmp/
	protected $templateDirectory= null; // array of directories to look for templates. can be relative to the baseDirectory
	protected $viewSuffix = ".shtml";
	protected $data; // a stdClass object to hold the data passed to the template
	protected $_template ;
	protected $_delimiters = null;
	protected $_israw = NULL;
	public $pkg_path = NULL;
	
	//global data

	/*
	public $doCache; // flag for whether to cache
	public $doStripCode;
	*/

	/**
	 * Construct the UTL instance
	 * @param String $temp  Template name , default is index
	 * @param String $subdir  Template Path relative to APPPATH , default is index
	 * @param String $suffix  Template file suffix name, default is ".shtml"
	 * @param Array $delimiters Delimiter to code, default as array('\{','\}')
	 * @param String $apppath apppath, The Application Path 
	 * @param Boolean $_israw, True when the template is PHP base, False by default when it's generic template
	 * @return Instance of UTL
	 */
	function __construct($temp="index",$subdir="views",$suffix='.shtml',$delimiters=array('{','}'),$apppath = null,$_israw = false) {
		$this->_israw = $_israw;
		$this->_delimiters = $delimiters;
		
		if($apppath == NULL){
			if(!defined('VIEWPATH'))
				define('VIEWPATH',APPPATH);
			$this->compileDirectory = $this->appendSeparator(VIEWPATH.DIRECTORY_SEPARATOR."cache".DIRECTORY_SEPARATOR.$subdir);
			$this->templateDirectory = $this->appendSeparator(VIEWPATH.DIRECTORY_SEPARATOR.$subdir);	
		}else{
			$this->compileDirectory = $this->appendSeparator($apppath.DIRECTORY_SEPARATOR."cache".DIRECTORY_SEPARATOR.$subdir);
			$this->templateDirectory = $this->appendSeparator($apppath.DIRECTORY_SEPARATOR.$subdir);	
		}
		if($suffix != null){
			$this->viewSuffix = $suffix;
		}
		$this->_template = $temp;	
		
		$this->data = new stdClass;
	}

	/**
	 * get UTL String with Data 
	 *
	 * @param String $subject, Original Subject String
	 * @param Array $data, Data array with key=>value pairs
	 * @param Array $delimiters, Delimitors for preg default array('\{','\}')
	 *
	 * @return String with replaced data
	 */

	public static function getString($subject,$data=NULL ,$delimiters=array('{','}')){
		if($data === NULL){
			return $subject;
		}
		else{
			$_searches = array();
			$_replacements = array();
			foreach($data as $_key => $_value){
				$_searches[] = $delimiters[0].$_key.$delimiters[1];
				$_replacements[] = $_value;
			}

			$_str = str_replace($_searches, $_replacements, $subject);
			return $_str;
		}
	}

	/**
	 * Makes sure folders have a trailing slash
	 */
	private function appendSeparator($path) {
		$path = trim($path);
		if(substr($path, strlen($path)-1, 1) != DIRECTORY_SEPARATOR)
			$path .= DIRECTORY_SEPARATOR;
		return $path;
	}

	/**
	 * Assign a template variable.
	 * This can be a single key and value pair, or an associate array of key=>value pairs
	 * @param String $key 
	 * @param Mixed $value
	 */
	public function assign($key, $value = null) {
		if(is_array($key)) {
			foreach($key as $n=>$v)
				$this->data->$n = $v;
		} elseif(is_object($key)) {
			foreach(get_object_vars($key) as $n=>$v)
				$this->data->$n = $v;
		} else {
			$this->data->$key = $value;
		}
	}
	

	/**
	 * Append the data into Scalar
	 *
	 * @param String $key, Property of Data
	 * @param String $value, Value to append
	 *
	 * @return NULL
	 */
	public function append($key, $value = '') {
		if(!property_exists($this->data, $key)) {
			$this->data->$key = '';
		}
		$this->data->$key .= $value;
	}

	/**
	 * Push the data into array
	 *
	 * @param String $key , Property name of data 
	 * @param Mixed $value, data to bush
	 *
	 * @return NULL
	 */
	public function push($key, $value = null) {
		if(!property_exists($this->data, $key)) {
			$this->data->$key = array();
		}
		$data = $this->data->$key;
		$data[] = $value;
		$this->data->$key = $data;
	}

	/**
	 * Resets all previously-set template variables
	 *
	 * @return NULL
	 */
	public function clear() {
		$this->data = new stdClass;
	}
	
	/**
	 * In charge of fetching and rendering the specified template
	 *
	 * @param String $template Template path,serperating muti templates by '|' 
	 * @param Boolean $israw, If the file is PHP base, fetch from constructor if NULL
	 *
	 * @return String The rendered page string
	 */
	public function output($template =null,$israw = NULL) {
		if(!$template)
			$template = $this->_template;
		if($israw === NULL)
			$israw = $this->_israw;
		if(!is_array($template))
			$template = explode('|',$template);
		// go through and prepend template and compile directories with baseDirectory if needed
		$out = '';
		$foundTemplate = false;
		foreach($template as $t) {
			$path = $this->appendSeparator($this->templateDirectory);
				if(file_exists($path . $t . $this->viewSuffix)) {
					$out .= $this->bufferedOutput($path, $t,$israw);
					$foundTemplate = true;
					break; // found the template, so don't check any more directories
				}
		}
		if(!$foundTemplate)
			throw new exception('Template (' . $t.$this->viewSuffix. ') not found in ' . $path);
		return $out;
	}

	public function __set($key,$value){
		$this->assign($key,$value);
	}
		
	public function __get($key){
		return $this->data->$key; 
	}
	
	public function __isset($key){
		return isset($this->data->$key);
	}

	public function __toString(){
		try
		{
			return $this->output();
		}
		catch (Exception $e)
		{
			// Display the exception message
			Pexcel::exception_handler($e);

			return '';
		}
	}

	/**
	 * Fetches the specified template, finding it in the specified path ... but only after trying to compile it first
	 */
	private function bufferedOutput($path, $template,$israw) {
		$this->compile($path, $template,$israw);

		ob_start();
		include($this->compileDirectory . $template . '.php');
		$out = ob_get_clean();
		return $out;
	}

	/**
	 * Compiles the template to PHP code and saves to file ... but only if the template has been updated since the last caching
	 * Uses Regular Expressions to identify template syntax
	 * Passes each match on to the callback for conversion to PHP
	 */
	private function compile($path, $template,$israw) {
		// moved from constructor
		if(!file_exists($this->compileDirectory))
			mkdir($this->compileDirectory,0700,true);

		$templateFile = $path . $template . $this->viewSuffix;
		$compiledFile = $this->compileDirectory . $template . '.php';
		$compileSubDir = dirname($compiledFile);
		if(!file_exists($compileSubDir)){
			mkdir($compileSubDir,0777,true);	
		}

		// don't spend time compiling if nothing has changed
		if(file_exists($compiledFile) && filemtime($compiledFile) >= filemtime($templateFile))
			return;

		$lines = file($templateFile);
		$newLines = array();
		$matches = null;
		foreach($lines as $line)  {
			//no space allowed: anthony.chen
			$pattern = '/'.preg_quote($this->_delimiters[0]).'([^{}\s]+)'.preg_quote($this->_delimiters[1]).'/';
			$num = preg_match_all($pattern, $line, $matches);
			if($num > 0) {
				for($i = 0; $i < $num; $i++) {
					$match = $matches[0][$i];
					$new = $this->transformSyntax($matches[1][$i],$israw);
					$line = str_replace($match, $new, $line);
				}
			}
			$newLines[] = $line;
		}
		$f = fopen($compiledFile, 'w');
		fwrite($f, implode('',$newLines));
		fclose($f);
	}
	

	/**
	 * This is where the generation of PHP code takes place
	 */
	private function transformSyntax($input,$israw) {
		$from = array(
			'/(^|\[|,|\(|\+|$)([a-zA-Z_][a-zA-Z0-9_]*)($|\.|\)|\[|\]|\+)/',
			'/(^|\[|,|\(|\+|$)([a-zA-Z_][a-zA-Z0-9_]*)($|\.|\)|\[|\]|\+)/', // again to catch those bypassed by overlapping start/end characters 
			'/\./',
		);
		$to = array(
			'$1$this->data->$2$3',
			'$1$this->data->$2$3',
			'->'
		);
		
		//$parts = explode(':', $input);
		//The seperator is restricted to : only
		preg_match("%(\w+):([^:].*)%",$input,$parts);
		if(!$parts) $parts[0] = $input;	
		else array_shift($parts);

		if($israw === true) $string = ''; else $string = '<?php ';
		switch($parts[0]) { // check for a template statement
			case 'if':
			case 'switch':
				$string .= $parts[0] . '(' . preg_replace($from, $to, $parts[1]) . ') { ' . ($parts[0] == 'switch' ? 'default: ' : '');
				break;
			case 'foreach':
				$pieces = explode(',', $parts[1]);
				$string .= 'foreach(' . preg_replace($from, $to, $pieces[0]) . ' as ';
				//Disable the transformation here to restrict the foreach 
				$string .=  $pieces[1];
				if(sizeof($pieces) == 3) // prepares the $value portion of foreach($var as $key=>$value)
					$string .= '=>' .$pieces[2];
				$string .= ') { ';
				break;
			case 'set': //Set variable, Or Execute the code
				$pieces = explode(',', $parts[1],2);
				$string .= preg_replace($from, $to, $pieces[0]) . ' = ';
				//Disable the transformation here to restrict the foreach 
				$string .=  preg_replace($from, $to, $pieces[1]);
				break;
			case 'equals': //Test if 2 values equals
				$pieces = explode(',', $parts[1],2);
				$string .= 'if (' . preg_replace($from, $to, $pieces[0]) . ' == ';
				//Disable the transformation here to restrict the foreach 
				$string .=  preg_replace($from, $to, $pieces[1]). ') { ';
				break;
			case 'end':
			case 'endswitch':
				$string .= '}';
				break;
			case 'else':
				$string .= '} else {';
				break;
			case 'case':
				$string .= 'break; case ' . preg_replace($from, $to, $parts[1]) . ':';
				break;
			case 'include':
				$pieces = explode(',', $parts[1]);
				if(count($pieces) == 2){
					if(!$this->pkg_path){
						$string .= 'echo $this->output("' . $pieces[0] . '",'.$pieces[1].');';
					}else{
						$string .= 'echo $this->output("' . str_replace('%PKG_PATH%',$this->pkg_path, $pieces[0]) . '",'.$pieces[1].');';
					}
				}else{
					if(!$this->pkg_path){
						$string .= 'echo $this->output("' . $parts[1] . '");';
					}else{
						$string .= 'echo $this->output("' . str_replace('%PKG_PATH%',$this->pkg_path,$parts[1]) . '");';
					}
				}
				break;
			default:
				$string .= 'echo ' . preg_replace($from, $to, $parts[0]) . ';';
				break;
		}
		if($israw === false) $string .= ' ?>';
		return $string;
	}
}

/**
     * Takes unknown classes and loads plugin files for them
     * class name format: Smarty_PluginType_PluginName
     * plugin filename format: plugintype.pluginname.php
     *
     * @param  string $plugin_name class plugin name to load
     * @param  bool   $check       check if already loaded
     * @return string |boolean filepath of loaded file or false
     */
    public function loadPlugin($plugin_name, $check = true)

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6: 出错行数和 模板一致,编译后的php是行对应的.

所有被OO F K过的脑残, 都无可救药, 无法理解本来就是很简单的东西.

除非你用两个凡是来拯救

哪怕是一些不大入流的php软件, 都不屑于用smarty 这种 肿胀的跟脓包一样的烂玩意

唯独你们这些 OO F K过的, 不可理喻.

回复 @南湖船老大 :