[Lambda-cvs] lambda/classes lambdaTemplate.class.php,1.3,1.4

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Update of /cvsroot/lambda/lambda/classes
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv11100/classes

Modified Files:
	lambdaTemplate.class.php 
Log Message:
Added lambdaTemplate class

Index: lambdaTemplate.class.php
===================================================================
RCS file: /cvsroot/lambda/lambda/classes/lambdaTemplate.class.php,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** lambdaTemplate.class.php	19 Jun 2004 10:25:22 -0000	1.3
--- lambdaTemplate.class.php	22 Jun 2004 12:56:44 -0000	1.4
***************
*** 3,7 ****
  /**
   * @package Lambda
!  * @author Ariejan de Vroom <ar...@la...>
   * @version $Id$
   * @copyright Copyright (C) 2004 Project Lambda
--- 3,7 ----
  /**
   * @package Lambda
!  * @author Adam McMaster <ad...@la...>
   * @version $Id$
   * @copyright Copyright (C) 2004 Project Lambda
***************
*** 10,45 ****
   
  /**
!  * Handles HTML output
   * @package lambdaCore
   **/
  class lambdaTemplate extends lambdaObject {
      
!     /**
!      * Sets the classname
!      **/
!     function __construct() {
! 	$this->setClassName("template");
!     }
! 
!     /** 
!      * Show HTML header
!      **/
!     function showHeader() {
! 	print "<html>\n"
! 	     ."<head>\n"
! 	     ."<meta http-equiv=\"Content-Type\" content=\"text/html; charset=iso-8859-1\" />\n"
! 	     ."<title>Project Lambda</title>\n"		
! 	     ."<link href=\"stylesheet.css\" rel=\"stylesheet\" type=\"text/css\" />\n"
! 	     ."</head>\n"
! 	     ."<body>\n";
!     }
! 
!     /**
!      * Show HTML footer
!      **/
!     function showFooter() {
! 	print "</body>"
! 	     ."</html>";
!     }
      
  }
--- 10,115 ----
   
  /**
!  * Handles data output
   * @package lambdaCore
   **/
  class lambdaTemplate extends lambdaObject {
      
!    /**
!     * @var array Keys (tags) which will be replaced in this template, of the form {KEY}
!     **/
! 	private $keys;
! 	
! 	/**
! 	 * @var array The strings that the keys will be replaced with
! 	 **/
! 	private $values;
! 	
! 	/**
! 	 * @var string The (unprocessed) template data
! 	 **/
! 	private $templateData;
!     
! 	/**
! 	 * @var object Error handler reference
! 	 **/
! 	private $handler;
!     
! 	/**
! 	 * Sets the classname, sets up error handler
! 	 **/
! 	function __construct() {
! 		global $handler;
! 		$this->handler = $handler;
! 		$this->setClassName('template');
! 	}
      
+ 	/**
+ 	 * Adds a new template key/value pair
+ 	 *
+ 	 * @return bool TRUE if successful, FALSE if key already exists
+ 	 **/
+ 	function addPair($key,$value) {
+    	if(!in_array($key,$this->keys)) {
+ 			array_push($this->keys,'/\{'.$key.'\}/');		/* Surround key with { and }, and the key*/
+ 																		/* must be in the form of a regex, /{$key}/ */
+ 			array_push($this->values,$value);
+ 			return TRUE;
+ 		}else{
+ 			$this->handler->warning('Key value "'.$key.'" already exists in this template, not adding again');
+ 			return FALSE;
+ 		}
+ 	}
+ 	
+ 	/**
+ 	 * Removes a key/value pair
+ 	 *
+ 	 * @return bool TRUE on success, FALSE if the key was not found
+ 	 **/
+ 	function delPair($key) {
+ 		if($keyID = array_search($key,$this->keys)) {
+ 			$this->keys[$keyID] = $this->values[$keyID] = NULL;
+ 			return TRUE;
+ 		}else{
+ 			$this->handler->warning('Key "'.$key.'" not found in this template');
+ 			return FALSE;
+ 		}
+ 	}
+ 	
+ 	/**
+ 	 * Appends raw template data to $templateData from a template file
+ 	 *
+ 	 * This will first attempt to open $file for reading, if that fails
+ 	 * an error will be displayed and the script will stop.  Next the 
+ 	 * contents of the file are read, and again if that fails the script
+ 	 * will stop after an error is displayed.
+ 	 *
+ 	 * For example, you could add head.tpl followed by body.tpl then 
+ 	 * foot.tpl; you can pick which template parts you need for a particular page.
+ 	 *
+ 	 * @return bool TRUE on success, FALSE on failure
+ 	 **/
+ 	function addFile($file) {
+ 		if($fp = fopen(LAMBDA_TEMPLATE . $file,r)) {
+ 			if($data = fread($fp,filesize(LAMBDA_TEMPLATE . $file))) {
+ 				$this->templateData .= $data;		/* Append data to $templateData */
+ 				fclose($fp);
+ 				return TRUE;
+ 			}else{
+ 				fclose($fp);
+ 				$this->handler->error('Unable to read template data',TRUE);
+ 				return FALSE;			/* In practice the script is killed before this, but */
+ 											/* still return for completeness	*/
+ 			}
+ 		}else{
+ 			$this->handler->error('Unable to open template for reading',TRUE);
+ 			return FALSE;
+ 		}
+ 	}
+ 	
+ 	/**
+ 	 * Prints template with data inserted into it
+ 	 **/
+ 	function output() {
+ 		print preg_replace($keys,$values,$templateData);
+ 	}
  }