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<?php
/**************************************************************************
* *
* 4images - A Web Based Image Gallery Management System *
* ---------------------------------------------------------------- *
* *
* File: template.php *
* Copyright: (C) 2002 Jan Sorgalla *
* Email: jan@4homepages.de *
* Web: http://www.4homepages.de *
* Scriptversion: 1.7.1 *
* *
* Never released without support from: Nicky (http://www.nicky.net) *
* *
**************************************************************************
* *
* Dieses Script ist KEINE Freeware. Bitte lesen Sie die Lizenz- *
* bedingungen (Lizenz.txt) für weitere Informationen. *
* --------------------------------------------------------------- *
* This script is NOT freeware! Please read the Copyright Notice *
* (Licence.txt) for further information. *
* *
*************************************************************************/
if (!defined('ROOT_PATH')) {
die("Security violation");
}
class Template {
var $no_error = 0;
var $val_cache = array();
var $missing_val_cache = array();
var $template_cache = array();
var $template_path;
var $template_extension = "html";
var $start = "{";
var $end = "}";
function Template($template_path = "") {
if (!@is_dir($template_path)) {
$this->error("Couldn't open Template-Pack ".$template_path, 1);
}
$this->template_path = $template_path;
}
function register_vars($var_name, $value = "") {
if (!is_array($var_name)) {
$this->val_cache[$var_name] = $value;
}
else {
$this->val_cache = array_merge($this->val_cache, $var_name);
}
}
function un_register_vars($var_list) {
$vars = explode(",", $var_list);
foreach ($vars as $val) {
unset($this->val_cache[trim($val)]);
}
}
function cache_templates($template_list) {
$template_list = explode(",", $template_list);
foreach ($template_list as $val) {
$val = trim($val);
if (!isset($this->template_cache[$val])) {
$this->get_template($val);
}
}
}
function get_template($template) {
if (!isset($this->template_cache[$template])) {
$path = $this->template_path."/".$template.".".$this->template_extension;
$line = @implode("", @file($path));
if (empty($line)) {
$this->error("Couldn't open Template ".$path, 1);
}
if (defined('EXEC_PHP_CODE') && EXEC_PHP_CODE == 0) {
$line = preg_replace("/<[\?|%]+(php|=)?(.*)[\?|%]+>/siU", "", $line);
$line = preg_replace("/<script\s+language\s?=\s?[\"|']?php[\"|']?>(.*)<\/script>/siU", "", $line);
}
$line = $this->compile_template($line);
$this->template_cache[$template] = $line;
}
return $this->template_cache[$template];
}
function parse_template($template) {
$template = $this->get_template($template);
// Don't show error notices
$old = error_reporting(E_ALL ^ E_NOTICE);
extract($this->val_cache);
ob_start();
//echo $template;
eval("?>".$template."<?php return 1;");
$str = ob_get_contents();
ob_end_clean();
// Reset error_reporting
error_reporting($old);
return $str;
}
function compile_template($template)
{
// Compile variables in PHP code
preg_match_all(
"/<[\?|%]+(php|=)?(.*)[\?|%]+>/siU",
$template,
$regs,
PREG_SET_ORDER
);
for ($i = 0; isset($regs[$i]); $i++) {
// Fix single quotes
$parsed = preg_replace_callback(
"/=\s*'(.*)".preg_quote($this->start)."([A-Z0-9_]+)".preg_quote($this->end)."(.*)';/Usi",
array(&$this, '_fix_php_quotes'),
$regs[$i][0]
);
$parsed = preg_replace_callback(
'='.preg_quote($this->start).'([A-Z0-9_]+)'.preg_quote($this->end).'=Usi',
array(&$this, '_compile_php_var'),
$parsed
);
$template = str_replace($regs[$i][0], $parsed, $template);
}
// Compile variables
$template = preg_replace_callback(
'='.preg_quote($this->start).'([A-Z0-9_]+)'.preg_quote($this->end).'=Usi',
array(&$this, '_compile_var'),
$template
);
// Compile condition tags
$template = preg_replace_callback(
'='.preg_quote($this->start).'if\s+([A-Z0-9_]+)'.preg_quote($this->end).'(.*)'.preg_quote($this->start).'endif\s+(\\1+)'.preg_quote($this->end).'=Usi',
array(&$this, '_compile_condition'),
$template
);
return $template;
}
function _compile_php_var(&$matches) {
return '{$' . trim($matches[1]) . '}';
}
function _fix_php_quotes(&$matches) {
return '= "' . str_replace('"', '\\"', $matches[1])
. $this->start.$matches[2].$this->end
. str_replace('"', '\\"', $matches[3]) . '";';
}
function _compile_var(&$matches) {
return '<?php echo $' . trim($matches[1]) . '; ?>';
}
function _compile_condition(&$matches) {
return '<?php if (!empty($' . trim($matches[1]) . ') && $' . trim($matches[1]) . ' != REPLACE_EMPTY): ?>' . $matches[2] . '<?php endif; ?>';
}
function parse_array($array) {
static $keys;
foreach ($array as $key => $val) {
if (is_array($val)) {
$array[$key] = $this->parse_array($val);
}
else {
if (!isset($keys) || count($keys) != count($this->val_cache)) {
$keys = array_keys($this->val_cache);
array_walk($keys, array(&$this, '_prepare_key'));
}
$array[$key] = str_replace($keys, $this->val_cache, $val);
}
}
return $array;
}
function _prepare_key(&$item)
{
$item = $this->start.$item.$this->end;
}
function print_template($template) {
print $this->clean_template($template);
}
function clean_template($template) {
$template = preg_replace(
"/".preg_quote($this->start)."[^".preg_quote($this->end)."\s]+".preg_quote($this->end)."/",
'',
$template
);
return $template;
}
function error($errmsg, $halt = 0) {
if (!$this->no_error) {
echo "<br /><font color='#FF0000'><b>Template Error</b></font>: ".$errmsg."<br />";
if ($halt) {
exit;
}
}
}
} // end of class
?>
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