phpmp-commits Mailing List for phpMyPublications (Page 9)

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Update of /cvsroot/phpmp/phpMP/includes
In directory sc8-pr-cvs1:/tmp/cvs-serv28791/includes

Modified Files:
	core.php template.php 
Log Message:
A trial run of the Template Engine from phpBB2.2.

Index: core.php
===================================================================
RCS file: /cvsroot/phpmp/phpMP/includes/core.php,v
retrieving revision 1.55
retrieving revision 1.56
diff -C2 -r1.55 -r1.56
*** core.php	17 May 2003 07:50:17 -0000	1.55
--- core.php	2 Jun 2003 22:32:31 -0000	1.56
***************
*** 126,132 ****
  		}
  
- 		//include_once(PHPMP_ROOT . 'includes/Smarty.class.php');
  		include_once(PHPMP_ROOT . 'includes/template.php');
! 		$Template = new Template($Session->page);  // Create an instance of Template.
  		
  		$DB->close();
--- 126,132 ----
  		}
  
  		include_once(PHPMP_ROOT . 'includes/template.php');
! 		$Template = new Template();
! 		$Template->set_template('BlueMP');
  		
  		$DB->close();

Index: template.php
===================================================================
RCS file: /cvsroot/phpmp/phpMP/includes/template.php,v
retrieving revision 1.34
retrieving revision 1.35
diff -C2 -r1.34 -r1.35
*** template.php	19 May 2003 23:39:59 -0000	1.34
--- template.php	2 Jun 2003 22:32:32 -0000	1.35
***************
*** 26,102 ****
  // This will utilize a flat-file template system.
  
  class Template
  {
! 	var $tplname;
! 	var $_tplvars = array();
! 	
! 	/**
! 	 * Template::Template()
! 	 * 
! 	 * Initializes the template system
! 	 * Default Constructor
! 	 * 
! 	 * @param $tplname, $tplsub
! 	 * @return 
! 	 * 
! 	 * $tpl_sub will contain the called division of a page i.e. modules.php?m=news&sub=read would yield
! 	 * Template('news', 'read') so that the correct template is displayed for underlying divisions of mods
! 	 * and such.
! 	 **/
! 	function Template($tplname, $tplsub = '')
  	{
! 		global $DB;
! 		$query = $DB->query("SELECT * FROM " . DB_TEMPLATE_VARS_TABLE . " WHERE tpl_name='$tplname'");
! 	
! 		$this->tplname = $tplname;
! 		$this->_tplvars = $DB->fetchArray($query);
  	}
  	
! 	/**
! 	 * Template::assign()
! 	 * 
! 	 * Allows for the assignment of template variables.
! 	 * 
! 	 * @param $new_tpl_var
! 	 * @return 
! 	 * 
! 	 * Note that this function can accept two forms of variables in order to assign them;
! 	 * you may specify an associative array of keys and values or call call the function
! 	 * with a single key and value.
! 	 * 
! 	 * For instance, the following is entirely valid:
! 	 * 
! 	 * $Template->assign( array(
! 	 * 'Google' => 'http://www.google.com',
! 	 * 'Excite' => 'http://www.excite.com',
! 	 * 'Altavista' => 'http://www.altavista.com'
! 	 * ) );
! 	 * 
! 	 * The following is also valid:
! 	 * 
! 	 * $Template->assign('Google', 'http://www.google.com');
! 	 *
! 	 * Lastly, keep in mind that, in order to make things a little cohesive and standardized,
! 	 * your template variable names may only contains characters A-Z, a-z, 0-9, (_), and (-).
! 	 **/
! 	function assign($new_tpl_var, $new_tpl_val = false)
  	{
! 		if( is_array( $new_tpl_var ) )
  		{
! 			// Assign an array to the template vars hash.
! 			foreach( $new_tpl_var as $key => $val )
  			{
! 				if(preg_match('/[^A-z][A-z0-9_-]/', $key))
  				{
! 					$this->_tplvars[$key] = $val;
  				}
! 				// If the regex doesn't validate to A-z0-9_-, we won't do anything and ignore the fault.	
! 			}
  		}
! 		elseif((!empty( $new_tpl_var )) && (preg_match('/[^A-z][A-z0-9_-]/', $new_tpl_var)) && ($new_tpl_val != false))
  		{
! 			// Assign one single var to the template vars hash.
! 			$this->_tplvars[$new_tpl_var] = $new_tpl_val;
  		}
  	}
  }
--- 26,707 ----
  // This will utilize a flat-file template system.
  
+ /*
+ 	The following code was taken from or inspired by the guys over at phpBB.
+ 	Any code resembling that of phpBB is probably their's and therefore
+ 	they hold the legal rights to it.  Since both phpBB and phpMP are released
+ 	under the GPL, you must abide by said license.
+ */
+ 
  class Template
  {
! 
! 	// variable that holds all the data we'll be substituting into
! 	// the compiled templates. Takes form:
! 	// --> $this->_tpldata[block.][iteration#][child.][iteration#][child2.][iteration#][variablename] == value
! 	// if it's a root-level variable, it'll be like this:
! 	// --> $this->_tpldata[.][0][varname] == value
! 	var $_tpldata = array();
! 
! 	// Root dir and hash of filenames for each template handle.
! 	var $root = '';
! 	var $cache_root = 'cache/templates/';
! 	var $files = array();
! 
! 	// this will hash handle names to the compiled/uncompiled code for that handle.
! 	var $compiled_code = array();
! 
! 	// Various counters and storage arrays
! 	var $block_names = array();
! 	var $block_else_level = array();
! 	var $block_nesting_level = 0;
! 
! 	var $force_recompile;
! 
! 
! 	function set_template($template = '', $force_recompile = false)
  	{
! 
! 		$this->root = PHPMP_ROOT . 'templates/' . $template;
!     $this->cachedir = PHPMP_ROOT . $this->cache_root . $template . '/';
! 
! 		$this->force_recompile = $force_recompile;
! 
! 		if (!file_exists($this->cachedir))
! 		{
! 			@umask(0);
! 			mkdir($this->cachedir, 0777);
! 		}
! 
! 		return true;
! 	}
! 
! 	// Sets the template filenames for handles. $filename_array
! 	// should be a hash of handle => filename pairs.
! 	function set_filenames($filename_array)
! 	{
! 		if (!is_array($filename_array))
! 		{
! 			return false;
! 		}
! 
! 		$template_names = '';
! 		foreach ($filename_array as $handle => $filename)
! 		{
! 			if (empty($filename))
! 			{
! 				trigger_error("template error - Empty filename specified for $handle", E_USER_ERROR);
! 			}
! 
! 			$this->filename[$handle] = $filename;
! 			$this->files[$handle] = $this->make_filename($filename);
! 		}
! 
! 		return true;
! 	}
! 
! 	// Generates a full path+filename for the given filename, which can either
! 	// be an absolute name, or a name relative to the rootdir for this Template
! 	// object.
! 	function make_filename($filename)
! 	{
! 		// Check if it's an absolute or relative path.
! 		return (substr($filename, 0, 1) != '/') ? $this->root . '/' . $filename : $filename;
! 	}
! 
! 	// Destroy template data set
! 	function destroy()
! 	{
! 		$this->_tpldata = array();
! 	}
! 
! 
! 	// Methods for loading and evaluating the templates
! 	function display($handle)
! 	{
! 
! 		if ($filename = $this->_tpl_load($handle))
! 		{
! 			include($filename);
! 		}
! 		else
! 		{
! 			eval(' ?>' . $this->compiled_code[$handle] . '<?php ');
! 		}
! 
! 		return true;
! 	}
! 
! 	// Load a compiled template if possible, if not, recompile it
! 	function _tpl_load(&$handle)
! 	{
! 		global $Config;
! 
! 		$filename = $this->cachedir . $this->filename[$handle] . '.' . $Config->get('language') . '.php';
! 
! 		// Recompile page if the original template is newer, otherwise load the compiled version
! 		if (file_exists($filename) && !$this->force_recompile)
! 		{
! 			return $filename;
! 		}
! 
! 		// If the file for this handle is already loaded and compiled, do nothing.
! 		if (!empty($this->uncompiled_code[$handle]))
! 		{
! 			return true;
! 		}
! 
! 		// If we don't have a file assigned to this handle, die.
! 		if (!isset($this->files[$handle]))
! 		{
! 			trigger_error("Template->_tpl_load(): No file specified for handle $handle", E_USER_ERROR);
! 		}
! 
! 		$str = '';
! 		// Try and open template for read
! 		if (!($fp = @fopen($this->files[$handle], 'r')))
! 		{
! 			trigger_error("Template->_tpl_load(): File $filename does not exist or is empty", E_USER_ERROR);
! 		}
! 
! 		$str = fread($fp, filesize($this->files[$handle]));
! 		@fclose($fp);
! 
! 		// Actually compile the code now.
! 		$this->compiled_code[$handle] = $this->compile(trim($str));
! 		$this->compile_write($handle, $this->compiled_code[$handle]);
! 
! 		return false;
! 	}
! 
! 
! 	// Assign key variable pairs from an array
! 	function assign_vars($vararray)
! 	{
! 		foreach ($vararray as $key => $val)
! 		{
! 			$this->_tpldata['.'][0][$key] = $val;
! 		}
! 
! 		return true;
! 	}
! 
! 	// Assign a single variable to a single key
! 	function assign_var($varname, $varval)
! 	{
! 		$this->_tpldata['.'][0][$varname] = $varval;
! 
! 		return true;
! 	}
! 
! 	// Assign key variable pairs from an array to a specified block
! 	function assign_block_vars($blockname, $vararray)
! 	{
! 		if (strstr($blockname, '.'))
! 		{
! 			// Nested block.
! 			$blocks = explode('.', $blockname);
! 			$blockcount = sizeof($blocks) - 1;
! 
! 			$str = &$this->_tpldata; 
! 			for ($i = 0; $i < $blockcount; $i++) 
! 			{
! 				$str = &$str[$blocks[$i]]; 
! 				$str = &$str[sizeof($str) - 1]; 
! 			} 
! 
! 			// Now we add the block that we're actually assigning to.
! 			// We're adding a new iteration to this block with the given
! 			// variable assignments.
! 			$str[$blocks[$blockcount]][] = $vararray;
! 		}
! 		else
! 		{
! 			// Top-level block.
! 			// Add a new iteration to this block with the variable assignments
! 			// we were given.
! 			$this->_tpldata[$blockname][] = $vararray;
! 		}
! 
! 		return true;
  	}
  	
! 
! 	// Include a seperate template
! 	function _tpl_include($filename, $include = true)
  	{
! 		global $user;
! 
! 		$handle = $filename;
! 		$this->filename[$handle] = $filename;
! 		$this->files[$handle] = $this->make_filename($filename);
! 
!  		$filename = $this->_tpl_load($handle);
! 		
! 		if ($include)
  		{
! //			eval($this->compiled_code[$handle]);
! 			include($filename);
! 		}
! 	}
! 
! 
! 
! 	// This next set of methods could be seperated off and included since
! 	// they deal exclusively with compilation ... which is done infrequently
! 	// and would save a fair few kb
! 
! 
! 	// The all seeing all doing compile method. Parts are inspired by or directly
! 	// from Smarty
! 	function compile($code, $no_echo = false, $echo_var = '')
! 	{
! 		global $Config;
! 
! 		// Remove any "loose" php ... we want to give admins the ability
! 		// to switch on/off PHP for a given template. Allowing unchecked
! 		// php is a no-no. There is a potential issue here in that non-php
! 		// content may be removed ... however designers should use entities 
! 		// if they wish to display < and >
! 		$match_php_tags = array('#\<\?php .*?\?\>#is', '#\<\script language="php"\>.*?\<\/script\>#is', '#\<\?.*?\?\>#s', '#\<%.*?%\>#s');
! 		$code = preg_replace($match_php_tags, '', $code);
! 
! 		// Pull out all block/statement level elements and seperate
! 		// plain text
! 		preg_match_all('#<!-- PHP -->(.*?)<!-- ENDPHP -->#s', $code, $matches);
! 		$php_blocks = $matches[1];
! 		$code = preg_replace('#<!-- PHP -->(.*?)<!-- ENDPHP -->#s', '<!-- PHP -->', $code);
! 
! 		preg_match_all('#<!-- INCLUDE ([a-zA-Z0-9\_\-\+\.]+?) -->#', $code, $matches);
! 		$include_blocks = $matches[1];
! 		$code = preg_replace('#<!-- INCLUDE ([a-zA-Z0-9\_\-\+\.]+?) -->#', '<!-- INCLUDE -->', $code);
! 
! 		preg_match_all('#<!-- INCLUDEPHP ([a-zA-Z0-9\_\-\+\.\\\\]+?) -->#', $code, $matches);
! 		$includephp_blocks = $matches[1];
! 		$code = preg_replace('#<!-- INCLUDEPHP ([a-zA-Z0-9\_\-\+\.]+?) -->#', '<!-- INCLUDEPHP -->', $code);
! 
! 		preg_match_all('#<!-- (.*?) (.*?)?[ ]?-->#s', $code, $blocks);
! 		$text_blocks = preg_split('#<!-- (.*?) (.*?)?[ ]?-->#s', $code);
! 		for($i = 0; $i < count($text_blocks); $i++)
! 		{
! 			$this->compile_var_tags($text_blocks[$i]);
! 		}
! 
! 		$compile_blocks = array();
! 
! 		for ($curr_tb = 0; $curr_tb < count($text_blocks); $curr_tb++)
! 		{
! 			switch ($blocks[1][$curr_tb])
  			{
! 				case 'BEGIN':
! 					$this->block_else_level[] = false;
! 					$compile_blocks[] = '<?php ' . $this->compile_tag_block($blocks[2][$curr_tb]) . ' ?>';
! 					break;
! 
! 				case 'BEGINELSE':
! 					$this->block_else_level[sizeof($this->block_else_level) - 1] = true;
! 					$compile_blocks[] = '<?php }} else { ?>';
! 					break;
! 
! 				case 'END':
! 					array_pop($this->block_names);
! 					$compile_blocks[] = '<?php ' . ((array_pop($this->block_else_level)) ? '}' : '}}') . ' ?>';
! 					break;
! 
! 				case 'IF':
! 					$compile_blocks[] = '<?php ' . $this->compile_tag_if($blocks[2][$curr_tb], false) . ' ?>';
! 					break;
! 
! 				case 'ELSE':
! 					$compile_blocks[] = '<?php } else { ?>';
! 					break;
! 
! 				case 'ELSEIF':
! 					$compile_blocks[] = '<?php ' . $this->compile_tag_if($blocks[2][$curr_tb], true) . ' ?>';
! 					break;
! 
! 				case 'ENDIF':
! 					$compile_blocks[] = '<?php } ?>';
! 					break;
! 
! 				case 'INCLUDE':
! 					$temp = '';
! 					list(, $temp) = each($include_blocks);
! 					$compile_blocks[] = '<?php ' . $this->compile_tag_include($temp) . ' ?>';
! 					$this->_tpl_include($temp, false);
! 					break;
! 
! 				case 'INCLUDEPHP':
! 					if ($Config->get('tpl_php'))
! 					{
! 						$temp = '';
! 						list(, $temp) = each($includephp_blocks);
! 						$compile_blocks[] = '<?php ' . $this->compile_tag_include_php($temp) . ' ?>';
! 					}
! 					break;
! 
! 				case 'PHP':
! 					if ($Config->get('tpl_php'))
! 					{
! 						$temp = '';
! 						list(, $temp) = each($php_blocks);
! 						$compile_blocks[] = '<?php ' . $temp . ' ?>';
! 					}
! 					break;
! 
! 				default:
! 					$this->compile_var_tags($blocks[0][$curr_tb]);
! 					$trim_check = trim($blocks[0][$curr_tb]);
! 					$compile_blocks[] = (!$do_not_echo) ? ((!empty($trim_check)) ? $blocks[0][$curr_tb] : '') : ((!empty($trim_check)) ? $blocks[0][$curr_tb] : '');
! 					break;
! 			}
! 		}
! 
! 		$template_php = '';
! 		for ($i = 0; $i < count($text_blocks); $i++)
! 		{
! 			$trim_check_text = trim($text_blocks[$i]);
! 			$trim_check_block = trim($compile_blocks[$i]);
! 			$template_php .= (!$no_echo) ? ((!empty($trim_check_text)) ? $text_blocks[$i] : '') . ((!empty($compile_blocks[$i])) ? $compile_blocks[$i] : '') : ((!empty($trim_check_text)) ? $text_blocks[$i] : '') . ((!empty($compile_blocks[$i])) ? $compile_blocks[$i] : '');
! 		}
! 
! 		// There will be a number of occassions where we switch into and out of
! 		// PHP mode instantaneously. Rather than "burden" the parser with this
! 		// we'll strip out such occurences, minimising such switching
! 		$template_php = str_replace(' ?><?php ', '', $template_php);
! 
! 		return  (!$no_echo) ? $template_php : "\$$echo_var .= '" . $template_php . "'";
! 	}
! 
! 	function compile_var_tags(&$text_blocks)
! 	{
! 		// change template varrefs into PHP varrefs
! 		$varrefs = array();
! 
! 		// This one will handle varrefs WITH namespaces
! 		preg_match_all('#\{(([a-z0-9\-_]+?\.)+?)([a-z0-9\-_]+?)\}#is', $text_blocks, $varrefs);
! 
! 		for ($j = 0; $j < sizeof($varrefs[1]); $j++)
! 		{
! 			$namespace = $varrefs[1][$j];
! 			$varname = $varrefs[3][$j];
! 			$new = $this->generate_block_varref($namespace, $varname);
! 
! 			$text_blocks = str_replace($varrefs[0][$j], $new, $text_blocks);
! 		}
! 
! 		// This will handle the remaining root-level varrefs
! 		else
! 		{
! 			global $Local;
! 
! 			$text_blocks = preg_replace('#\{L_([A-Z0-9\-_]*?)\}#e', "'<?php echo ((isset(\$this->_tpldata[\'.\'][0][\'L_\\1\'])) ? \$this->_tpldata[\'.\'][0][\'L_\\1\'] : \'' . ((isset(\$Local->lang['\\1'])) ? \$Local->lang['\\1'] : '') . '\'); ?>'" , $text_blocks);
! 		}
! 		$text_blocks = preg_replace('#\{([a-z0-9\-_]*?)\}#is', "<?php echo \$this->_tpldata['.'][0]['\\1']; ?>", $text_blocks);
! 
! 		return;
! 	}
! 
! 	function compile_tag_block($tag_args)
! 	{
! 		$tag_template_php = '';
! 		array_push($this->block_names, $tag_args);
! 
! 		if (sizeof($this->block_names) < 2)
! 		{
! 			// Block is not nested.
! 			$tag_template_php = '$_' . $tag_args . "_count = (isset(\$this->_tpldata['$tag_args'])) ?  sizeof(\$this->_tpldata['$tag_args']) : 0;";
! 		}
! 		else
! 		{
! 			// This block is nested.
! 
! 			// Generate a namespace string for this block.
! 			$namespace = implode('.', $this->block_names);
! 
! 			// Get a reference to the data array for this block that depends on the
! 			// current indices of all parent blocks.
! 			$varref = $this->generate_block_data_ref($namespace, false);
! 
! 			// Create the for loop code to iterate over this block.
! 			$tag_template_php = '$_' . $tag_args . '_count = (isset(' . $varref . ')) ? sizeof(' . $varref . ') : 0;';
! 		}
! 
! 		$tag_template_php .= 'if ($_' . $tag_args . '_count) {';
! 		$tag_template_php .= 'for ($this->_' . $tag_args . '_i = 0; $this->_' . $tag_args . '_i < $_' . $tag_args . '_count; $this->_' . $tag_args . '_i++){';
! 
! 		return $tag_template_php;
! 	}
! 
! 	//
! 	// Compile IF tags - much of this is from Smarty with
! 	// some adaptions for our block level methods
! 	//
! 	function compile_tag_if($tag_args, $elseif)
! 	{
!         /* Tokenize args for 'if' tag. */
!         preg_match_all('/(?:
!                          "[^"\\\\]*(?:\\\\.[^"\\\\]*)*"         |
!                          \'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\'     |
!                          [(),]                                  |
!                          [^\s(),]+)/x', $tag_args, $match);
! 
!         $tokens = $match[0];
!         $is_arg_stack = array();
! 
!         for ($i = 0; $i < count($tokens); $i++)
! 		{
! 			$token = &$tokens[$i];
! 
! 			switch (strtolower($token))
! 			{
!                 case '!':
!                 case '%':
!                 case '!==':
!                 case '==':
!                 case '===':
!                 case '>':
!                 case '<':
!                 case '!=':
!                 case '<>':
!                 case '<<':
!                 case '>>':
!                 case '<=':
!                 case '>=':
!                 case '&&':
!                 case '||':
! 				case '|':
! 				case '^':
! 				case '&':
! 				case '~':
! 				case ')':
! 				case ',':
! 				case '+':
! 				case '-':
! 				case '*':
! 				case '/':
! 				case '@':
! 					break;	
! 				
! 				case 'eq':
! 					$token = '==';
! 					break;
! 
! 				case 'ne':
! 				case 'neq':
! 					$token = '!=';
! 					break;
! 
! 				case 'lt':
! 					$token = '<';
! 					break;
! 
! 				case 'le':
! 				case 'lte':
! 					$token = '<=';
! 					break;
! 
! 				case 'gt':
! 					$token = '>';
! 					break;
! 
! 				case 'ge':
! 				case 'gte':
! 					$token = '>=';
! 					break;
! 
! 				case 'and':
! 					$token = '&&';
! 					break;
! 
! 				case 'or':
! 					$token = '||';
! 					break;
! 
! 				case 'not':
! 					$token = '!';
! 					break;
! 
! 				case 'mod':
! 					$token = '%';
! 					break;
! 
! 				case '(':
! 					array_push($is_arg_stack, $i);
! 					break;
! 
! 				case 'is':
! 					$is_arg_start = ($tokens[$i-1] == ')') ? array_pop($is_arg_stack) : $i-1;
! 					$is_arg	= implode('	', array_slice($tokens,	$is_arg_start, $i -	$is_arg_start));
! 
! 					$new_tokens	= $this->_parse_is_expr($is_arg, array_slice($tokens, $i+1));
! 
! 					array_splice($tokens, $is_arg_start, count($tokens), $new_tokens);
! 
! 					$i = $is_arg_start;
! 
! 				default:
! 					if (preg_match('#^(([a-z0-9\-_]+?\.)+?)?([A-Z]+[A-Z0-9\-_]+?)$#s', $token, $varrefs))
! 					{
! 						$token = (!empty($varrefs[1])) ? $this->generate_block_data_ref(substr($varrefs[1], 0, strlen($varrefs[1]) - 1), true) . '[\'' . $varrefs[3] . '\']' : '$this->_tpldata[\'.\'][0][\'' . $varrefs[3] . '\']';
! 					}
! 					break;
!             }
!         }
! 
! 		return (($elseif) ? '} elseif (' : 'if (') . (implode(' ', $tokens) . ') { ');
! 	}
! 
! 	function compile_tag_include($tag_args)
! 	{
!         return "\$this->_tpl_include('$tag_args');";
! 	}
! 
! 	function compile_tag_include_php($tag_args)
! 	{
!         return "include('" . $this->root . '/' . $tag_args . "');";
! 	}
! 
! 	// This is from Smarty
! 	function _parse_is_expr($is_arg, $tokens)
! 	{
! 		$expr_end =	0;
! 		$negate_expr = false;
! 
! 		if (($first_token = array_shift($tokens)) == 'not')
! 		{
! 			$negate_expr = true;
! 			$expr_type = array_shift($tokens);
! 		}
! 		else
! 		{
! 			$expr_type = $first_token;
! 		}
! 
! 		switch ($expr_type)
! 		{
! 			case 'even':
! 				if (@$tokens[$expr_end] == 'by')
  				{
! 					$expr_end++;
! 					$expr_arg =	$tokens[$expr_end++];
! 					$expr =	"!(($is_arg	/ $expr_arg) % $expr_arg)";
  				}
! 				else
! 				{
! 					$expr =	"!($is_arg % 2)";
! 				}
! 				break;
! 
! 			case 'odd':
! 				if (@$tokens[$expr_end] == 'by')
! 				{
! 					$expr_end++;
! 					$expr_arg =	$tokens[$expr_end++];
! 					$expr =	"(($is_arg / $expr_arg)	% $expr_arg)";
! 				}
! 				else
! 				{
! 					$expr =	"($is_arg %	2)";
! 				}
! 				break;
! 
! 			case 'div':
! 				if (@$tokens[$expr_end] == 'by')
! 				{
! 					$expr_end++;
! 					$expr_arg =	$tokens[$expr_end++];
! 					$expr =	"!($is_arg % $expr_arg)";
! 				}
! 				break;
! 
! 			default:
! 				break;
! 		}
! 
! 		if ($negate_expr)
! 		{
! 			$expr =	"!($expr)";
  		}
! 
! 		array_splice($tokens, 0, $expr_end,	$expr);
! 
! 		return $tokens;
! 	}
! 
! 	/**
! 	 * Generates a reference to the given variable inside the given (possibly nested)
! 	 * block namespace. This is a string of the form:
! 	 * ' . $this->_tpldata['parent'][$_parent_i]['$child1'][$_child1_i]['$child2'][$_child2_i]...['varname'] . '
! 	 * It's ready to be inserted into an "echo" line in one of the templates.
! 	 * NOTE: expects a trailing "." on the namespace.
! 	 */
! 	function generate_block_varref($namespace, $varname)
! 	{
! 		// Strip the trailing period.
! 		$namespace = substr($namespace, 0, strlen($namespace) - 1);
! 
! 		// Get a reference to the data block for this namespace.
! 		$varref = $this->generate_block_data_ref($namespace, true);
! 		// Prepend the necessary code to stick this in an echo line.
! 
! 		// Append the variable reference.
! 		$varref .= "['$varname']";
! 		$varref = "<?php echo $varref; ?>";
! 
! 		return $varref;
! 
! 	}
! 
! 	/**
! 	 * Generates a reference to the array of data values for the given
! 	 * (possibly nested) block namespace. This is a string of the form:
! 	 * $this->_tpldata['parent'][$_parent_i]['$child1'][$_child1_i]['$child2'][$_child2_i]...['$childN']
! 	 *
! 	 * If $include_last_iterator is true, then [$_childN_i] will be appended to the form shown above.
! 	 * NOTE: does not expect a trailing "." on the blockname.
! 	 */
! 	function generate_block_data_ref($blockname, $include_last_iterator)
! 	{
! 		// Get an array of the blocks involved.
! 		$blocks = explode('.', $blockname);
! 		$blockcount = sizeof($blocks) - 1;
! 		$varref = '$this->_tpldata';
! 
! 		// Build up the string with everything but the last child.
! 		for ($i = 0; $i < $blockcount; $i++)
! 		{
! 			$varref .= "['" . $blocks[$i] . "'][\$this->_" . $blocks[$i] . '_i]';
! 		}
! 
! 		// Add the block reference for the last child.
! 		$varref .= "['" . $blocks[$blockcount] . "']";
! 
! 		// Add the iterator for the last child if requried.
! 		if ($include_last_iterator)
! 		{
! 			$varref .= '[$this->_' . $blocks[$blockcount] . '_i]';
! 		}
! 
! 		return $varref;
! 	}
! 
! 	function compile_write(&$handle, $data)
! 	{
! 		global $Config;
! 
! 		$filename = $this->cachedir . $this->filename[$handle] . '.' . $Config->get('language') . '.php';
! 
! 		if ($fp = @fopen($filename, 'w+'))
  		{
! 			@flock($fp, LOCK_EX);
! 			@fwrite ($fp, $data);
! 			@flock($fp, LOCK_UN);
! 			@fclose($fp);
! 
! 			@umask(0);
! 			@chmod($filename, 0644);
  		}
+ 
+ 		return;
  	}
  }

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