/**
  * Compile saved child block source
  *
  * @param object $compiler compiler object
  * @param string $_name    optional name of child block
  *
  * @return string   compiled code of child block
  */
 static function compileChildBlock($compiler, $_name = null)
 {
     if ($compiler->inheritance_child) {
         $name1 = Smurty_Internal_Compile_Block::$nested_block_names[0];
         if (isset($compiler->template->block_data[$name1])) {
             //  replace inner block name with generic
             Smurty_Internal_Compile_Block::$block_data[$name1]['source'] .= $compiler->template->block_data[$name1]['source'];
             Smurty_Internal_Compile_Block::$block_data[$name1]['child'] = true;
         }
         $compiler->lex->yypushstate(Smurty_Internal_Templatelexer::CHILDBLOCK);
         $compiler->has_code = false;
         return;
     }
     // if called by {$smurty.block.child} we must search the name of enclosing {block}
     if ($_name == null) {
         $stack_count = count($compiler->_tag_stack);
         while (--$stack_count >= 0) {
             if ($compiler->_tag_stack[$stack_count][0] == 'block') {
                 $_name = trim($compiler->_tag_stack[$stack_count][1][0]['name'], "\"'");
                 break;
             }
         }
     }
     if ($_name == null) {
         $compiler->trigger_template_error(' tag {$smurty.block.child} used outside {block} tags ', $compiler->lex->taglineno);
     }
     // undefined child?
     if (!isset($compiler->template->block_data[$_name]['source'])) {
         $compiler->popTrace();
         return '';
     }
     // flag that child is already compile by {$smurty.block.child} inclusion
     $compiler->template->block_data[$_name]['compiled'] = true;
     $_tpl = new Smurty_Internal_template('string:' . $compiler->template->block_data[$_name]['source'], $compiler->smurty, $compiler->template, $compiler->template->cache_id, $compiler->template->compile_id, $compiler->template->caching, $compiler->template->cache_lifetime);
     if ($compiler->smurty->debugging) {
         Smurty_Internal_Debug::ignore($_tpl);
     }
     $_tpl->tpl_vars = $compiler->template->tpl_vars;
     $_tpl->variable_filters = $compiler->template->variable_filters;
     $_tpl->properties['nocache_hash'] = $compiler->template->properties['nocache_hash'];
     $_tpl->allow_relative_path = true;
     $_tpl->compiler->inheritance = true;
     $_tpl->compiler->suppressHeader = true;
     $_tpl->compiler->suppressFilter = true;
     $_tpl->compiler->suppressTemplatePropertyHeader = true;
     $_tpl->compiler->suppressMergedTemplates = true;
     $nocache = $compiler->nocache || $compiler->tag_nocache;
     if (strpos($compiler->template->block_data[$_name]['source'], self::parent) !== false) {
         $_output = str_replace(self::parent, $compiler->parser->current_buffer->to_smurty_php(), $_tpl->compiler->compileTemplate($_tpl, $nocache));
     } elseif ($compiler->template->block_data[$_name]['mode'] == 'prepend') {
         $_output = $_tpl->compiler->compileTemplate($_tpl, $nocache) . $compiler->parser->current_buffer->to_smurty_php();
     } elseif ($compiler->template->block_data[$_name]['mode'] == 'append') {
         $_output = $compiler->parser->current_buffer->to_smurty_php() . $_tpl->compiler->compileTemplate($_tpl, $nocache);
     } elseif (!empty($compiler->template->block_data[$_name])) {
         $_output = $_tpl->compiler->compileTemplate($_tpl, $nocache);
     }
     $compiler->template->properties['file_dependency'] = array_merge($compiler->template->properties['file_dependency'], $_tpl->properties['file_dependency']);
     $compiler->template->properties['function'] = array_merge($compiler->template->properties['function'], $_tpl->properties['function']);
     $compiler->merged_templates = array_merge($compiler->merged_templates, $_tpl->compiler->merged_templates);
     $compiler->template->variable_filters = $_tpl->variable_filters;
     if ($_tpl->has_nocache_code) {
         $compiler->template->has_nocache_code = true;
     }
     foreach ($_tpl->required_plugins as $key => $tmp1) {
         if ($compiler->nocache && $compiler->template->caching) {
             $code = 'nocache';
         } else {
             $code = $key;
         }
         foreach ($tmp1 as $name => $tmp) {
             foreach ($tmp as $type => $data) {
                 $compiler->template->required_plugins[$code][$name][$type] = $data;
             }
         }
     }
     unset($_tpl);
     $compiler->has_code = true;
     return $_output;
 }
 /**
  * fetches a rendered hiweb_tpl template
  *
  * @param  string $template         the resource handle of the template file or template object
  * @param  mixed  $cache_id         cache id to be used with this template
  * @param  mixed  $compile_id       compile id to be used with this template
  * @param  object $parent           next higher level of hiweb_tpl variables
  * @param  bool   $display          true: display, false: fetch
  * @param  bool   $merge_tpl_vars   if true parent template variables merged in to local scope
  * @param  bool   $no_output_filter if true do not run output filter
  *
  * @throws Exception
  * @throws SmurtyException
  * @return string rendered template output
  */
 public function fetch($template = null, $cache_id = null, $compile_id = null, $parent = null, $display = false, $merge_tpl_vars = true, $no_output_filter = false)
 {
     if ($template === null && $this instanceof $this->template_class) {
         $template = $this;
     }
     if ($cache_id !== null && is_object($cache_id)) {
         $parent = $cache_id;
         $cache_id = null;
     }
     if ($parent === null && ($this instanceof hiweb_tpl || is_string($template))) {
         $parent = $this;
     }
     // create template object if necessary
     $_template = $template instanceof $this->template_class ? $template : $this->smurty->createTemplate($template, $cache_id, $compile_id, $parent, false);
     // if called by hiweb_tpl object make sure we use current caching status
     if ($this instanceof hiweb_tpl) {
         $_template->caching = $this->caching;
     }
     // merge all variable scopes into template
     if ($merge_tpl_vars) {
         // save local variables
         $save_tpl_vars = $_template->tpl_vars;
         $save_config_vars = $_template->config_vars;
         $ptr_array = array($_template);
         $ptr = $_template;
         while (isset($ptr->parent)) {
             $ptr_array[] = $ptr = $ptr->parent;
         }
         $ptr_array = array_reverse($ptr_array);
         $parent_ptr = reset($ptr_array);
         $tpl_vars = $parent_ptr->tpl_vars;
         $config_vars = $parent_ptr->config_vars;
         while ($parent_ptr = next($ptr_array)) {
             if (!empty($parent_ptr->tpl_vars)) {
                 $tpl_vars = array_merge($tpl_vars, $parent_ptr->tpl_vars);
             }
             if (!empty($parent_ptr->config_vars)) {
                 $config_vars = array_merge($config_vars, $parent_ptr->config_vars);
             }
         }
         if (!empty(hiweb_tpl::$global_tpl_vars)) {
             $tpl_vars = array_merge(hiweb_tpl::$global_tpl_vars, $tpl_vars);
         }
         $_template->tpl_vars = $tpl_vars;
         $_template->config_vars = $config_vars;
     }
     // dummy local smurty variable
     if (!isset($_template->tpl_vars['smurty'])) {
         $_template->tpl_vars['smurty'] = new Smurty_Variable();
     }
     if (isset($this->smurty->error_reporting)) {
         $_smurty_old_error_level = error_reporting($this->smurty->error_reporting);
     }
     // check URL debugging control
     if (!$this->smurty->debugging && $this->smurty->debugging_ctrl == 'URL') {
         if (isset($_SERVER['QUERY_STRING'])) {
             $_query_string = $_SERVER['QUERY_STRING'];
         } else {
             $_query_string = '';
         }
         if (false !== strpos($_query_string, $this->smurty->smurty_debug_id)) {
             if (false !== strpos($_query_string, $this->smurty->smurty_debug_id . '=on')) {
                 // enable debugging for this browser session
                 setcookie('SMURTY_DEBUG', true);
                 $this->smurty->debugging = true;
             } elseif (false !== strpos($_query_string, $this->smurty->smurty_debug_id . '=off')) {
                 // disable debugging for this browser session
                 setcookie('SMURTY_DEBUG', false);
                 $this->smurty->debugging = false;
             } else {
                 // enable debugging for this page
                 $this->smurty->debugging = true;
             }
         } else {
             if (isset($_COOKIE['SMURTY_DEBUG'])) {
                 $this->smurty->debugging = true;
             }
         }
     }
     // must reset merge template date
     $_template->smurty->merged_templates_func = array();
     // get rendered template
     // disable caching for evaluated code
     if ($_template->source->recompiled) {
         $_template->caching = false;
     }
     // checks if template exists
     if (!$_template->source->exists) {
         if ($_template->parent instanceof Smurty_Internal_Template) {
             $parent_resource = " in '{$_template->parent->template_resource}'";
         } else {
             $parent_resource = '';
         }
         throw new SmurtyException("Unable to load template {$_template->source->type} '{$_template->source->name}'{$parent_resource}");
     }
     // read from cache or render
     if (!($_template->caching == hiweb_tpl::CACHING_LIFETIME_CURRENT || $_template->caching == hiweb_tpl::CACHING_LIFETIME_SAVED) || !$_template->cached->valid) {
         // render template (not loaded and not in cache)
         if (!$_template->source->uncompiled) {
             /** @var Smurty_Internal_Template $_smurty_tpl
              * used in evaluated code
              */
             $_smurty_tpl = $_template;
             if ($_template->source->recompiled) {
                 $code = $_template->compiler->compileTemplate($_template);
                 if ($this->smurty->debugging) {
                     Smurty_Internal_Debug::start_render($_template);
                 }
                 try {
                     ob_start();
                     eval("?>" . $code);
                     unset($code);
                 } catch (Exception $e) {
                     ob_get_clean();
                     throw $e;
                 }
             } else {
                 if (!$_template->compiled->exists || $_template->smurty->force_compile && !$_template->compiled->isCompiled) {
                     $_template->compileTemplateSource();
                     $code = file_get_contents($_template->compiled->filepath);
                     eval("?>" . $code);
                     unset($code);
                     $_template->compiled->loaded = true;
                     $_template->compiled->isCompiled = true;
                 }
                 if ($this->smurty->debugging) {
                     Smurty_Internal_Debug::start_render($_template);
                 }
                 if (!$_template->compiled->loaded) {
                     include $_template->compiled->filepath;
                     if ($_template->mustCompile) {
                         // recompile and load again
                         $_template->compileTemplateSource();
                         $code = file_get_contents($_template->compiled->filepath);
                         eval("?>" . $code);
                         unset($code);
                         $_template->compiled->isCompiled = true;
                     }
                     $_template->compiled->loaded = true;
                 } else {
                     $_template->decodeProperties($_template->compiled->_properties, false);
                 }
                 try {
                     ob_start();
                     if (empty($_template->properties['unifunc']) || !is_callable($_template->properties['unifunc'])) {
                         throw new SmurtyException("Invalid compiled template for '{$_template->template_resource}'");
                     }
                     array_unshift($_template->_capture_stack, array());
                     //
                     // render compiled template
                     //
                     $_template->properties['unifunc']($_template);
                     // any unclosed {capture} tags ?
                     if (isset($_template->_capture_stack[0][0])) {
                         $_template->capture_error();
                     }
                     array_shift($_template->_capture_stack);
                 } catch (Exception $e) {
                     ob_get_clean();
                     throw $e;
                 }
             }
         } else {
             if ($_template->source->uncompiled) {
                 if ($this->smurty->debugging) {
                     Smurty_Internal_Debug::start_render($_template);
                 }
                 try {
                     ob_start();
                     $_template->source->renderUncompiled($_template);
                 } catch (Exception $e) {
                     ob_get_clean();
                     throw $e;
                 }
             } else {
                 throw new SmurtyException("Resource '{$_template->source}->type' must have 'renderUncompiled' method");
             }
         }
         $_output = ob_get_clean();
         if (!$_template->source->recompiled && empty($_template->properties['file_dependency'][$_template->source->uid])) {
             $_template->properties['file_dependency'][$_template->source->uid] = array($_template->source->filepath, $_template->source->timestamp, $_template->source->type);
         }
         if ($_template->parent instanceof Smurty_Internal_Template) {
             $_template->parent->properties['file_dependency'] = array_merge($_template->parent->properties['file_dependency'], $_template->properties['file_dependency']);
             foreach ($_template->required_plugins as $code => $tmp1) {
                 foreach ($tmp1 as $name => $tmp) {
                     foreach ($tmp as $type => $data) {
                         $_template->parent->required_plugins[$code][$name][$type] = $data;
                     }
                 }
             }
         }
         if ($this->smurty->debugging) {
             Smurty_Internal_Debug::end_render($_template);
         }
         // write to cache when nessecary
         if (!$_template->source->recompiled && ($_template->caching == hiweb_tpl::CACHING_LIFETIME_SAVED || $_template->caching == hiweb_tpl::CACHING_LIFETIME_CURRENT)) {
             if ($this->smurty->debugging) {
                 Smurty_Internal_Debug::start_cache($_template);
             }
             $_template->properties['has_nocache_code'] = false;
             // get text between non-cached items
             $cache_split = preg_split("!/\\*%%SmurtyNocache:{$_template->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmurtyNocache:{$_template->properties['nocache_hash']}%%\\*/!s", $_output);
             // get non-cached items
             preg_match_all("!/\\*%%SmurtyNocache:{$_template->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmurtyNocache:{$_template->properties['nocache_hash']}%%\\*/!s", $_output, $cache_parts);
             $output = '';
             // loop over items, stitch back together
             foreach ($cache_split as $curr_idx => $curr_split) {
                 // escape PHP tags in template content
                 $output .= preg_replace('/(<%|%>|<\\?php|<\\?|\\?>)/', "<?php echo '\$1'; ?>\n", $curr_split);
                 if (isset($cache_parts[0][$curr_idx])) {
                     $_template->properties['has_nocache_code'] = true;
                     // remove nocache tags from cache output
                     $output .= preg_replace("!/\\*/?%%SmurtyNocache:{$_template->properties['nocache_hash']}%%\\*/!", '', $cache_parts[0][$curr_idx]);
                 }
             }
             if (!$no_output_filter && !$_template->has_nocache_code && (isset($this->smurty->autoload_filters['output']) || isset($this->smurty->registered_filters['output']))) {
                 $output = Smurty_Internal_Filter_Handler::runFilter('output', $output, $_template);
             }
             // rendering (must be done before writing cache file because of {function} nocache handling)
             /** @var Smurty_Internal_Template $_smurty_tpl
              * used in evaluated code
              */
             $_smurty_tpl = $_template;
             try {
                 ob_start();
                 eval("?>" . $output);
                 $_output = ob_get_clean();
             } catch (Exception $e) {
                 ob_get_clean();
                 throw $e;
             }
             // write cache file content
             $_template->writeCachedContent($output);
             if ($this->smurty->debugging) {
                 Smurty_Internal_Debug::end_cache($_template);
             }
         } else {
             // var_dump('renderTemplate', $_template->has_nocache_code, $_template->template_resource, $_template->properties['nocache_hash'], $_template->parent->properties['nocache_hash'], $_output);
             if (!empty($_template->properties['nocache_hash']) && !empty($_template->parent->properties['nocache_hash'])) {
                 // replace nocache_hash
                 $_output = str_replace("{$_template->properties['nocache_hash']}", $_template->parent->properties['nocache_hash'], $_output);
                 $_template->parent->has_nocache_code = $_template->parent->has_nocache_code || $_template->has_nocache_code;
             }
         }
     } else {
         if ($this->smurty->debugging) {
             Smurty_Internal_Debug::start_cache($_template);
         }
         try {
             ob_start();
             array_unshift($_template->_capture_stack, array());
             //
             // render cached template
             //
             $_template->properties['unifunc']($_template);
             // any unclosed {capture} tags ?
             if (isset($_template->_capture_stack[0][0])) {
                 $_template->capture_error();
             }
             array_shift($_template->_capture_stack);
             $_output = ob_get_clean();
         } catch (Exception $e) {
             ob_get_clean();
             throw $e;
         }
         if ($this->smurty->debugging) {
             Smurty_Internal_Debug::end_cache($_template);
         }
     }
     if ((!$this->caching || $_template->has_nocache_code || $_template->source->recompiled) && !$no_output_filter && (isset($this->smurty->autoload_filters['output']) || isset($this->smurty->registered_filters['output']))) {
         $_output = Smurty_Internal_Filter_Handler::runFilter('output', $_output, $_template);
     }
     if (isset($this->error_reporting)) {
         error_reporting($_smurty_old_error_level);
     }
     // display or fetch
     if ($display) {
         if ($this->caching && $this->cache_modified_check) {
             $_isCached = $_template->isCached() && !$_template->has_nocache_code;
             $_last_modified_date = @substr($_SERVER['HTTP_IF_MODIFIED_SINCE'], 0, strpos($_SERVER['HTTP_IF_MODIFIED_SINCE'], 'GMT') + 3);
             if ($_isCached && $_template->cached->timestamp <= strtotime($_last_modified_date)) {
                 switch (PHP_SAPI) {
                     case 'cgi':
                         // php-cgi < 5.3
                     // php-cgi < 5.3
                     case 'cgi-fcgi':
                         // php-cgi >= 5.3
                     // php-cgi >= 5.3
                     case 'fpm-fcgi':
                         // php-fpm >= 5.3.3
                         header('Status: 304 Not Modified');
                         break;
                     case 'cli':
                         if (!empty($_SERVER['SMURTY_PHPUNIT_DISABLE_HEADERS'])) {
                             $_SERVER['SMURTY_PHPUNIT_HEADERS'][] = '304 Not Modified';
                         }
                         break;
                     default:
                         header($_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified');
                         break;
                 }
             } else {
                 switch (PHP_SAPI) {
                     case 'cli':
                         if (!empty($_SERVER['SMURTY_PHPUNIT_DISABLE_HEADERS'])) {
                             $_SERVER['SMURTY_PHPUNIT_HEADERS'][] = 'Last-Modified: ' . gmdate('D, d M Y H:i:s', $_template->cached->timestamp) . ' GMT';
                         }
                         break;
                     default:
                         header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $_template->cached->timestamp) . ' GMT');
                         break;
                 }
                 echo $_output;
             }
         } else {
             echo $_output;
         }
         // debug output
         if ($this->smurty->debugging) {
             Smurty_Internal_Debug::display_debug($_template);
         }
         if ($merge_tpl_vars) {
             // restore local variables
             $_template->tpl_vars = $save_tpl_vars;
             $_template->config_vars = $save_config_vars;
         }
         return;
     } else {
         if ($merge_tpl_vars) {
             // restore local variables
             $_template->tpl_vars = $save_tpl_vars;
             $_template->config_vars = $save_config_vars;
         }
         // return fetched content
         return $_output;
     }
 }
 /**
  * create Cached Object container
  *
  * @param Smurty_Internal_Template $_template template object
  */
 public function __construct(Smurty_Internal_Template $_template)
 {
     $this->compile_id = $_template->compile_id;
     $this->cache_id = $_template->cache_id;
     $this->source = $_template->source;
     $_template->cached = $this;
     $smurty = $_template->smurty;
     //
     // load resource handler
     //
     $this->handler = $handler = Smurty_CacheResource::load($smurty);
     // Note: prone to circular references
     //
     //    check if cache is valid
     //
     if (!($_template->caching == hiweb_tpl::CACHING_LIFETIME_CURRENT || $_template->caching == hiweb_tpl::CACHING_LIFETIME_SAVED) || $_template->source->recompiled) {
         $handler->populate($this, $_template);
         return;
     }
     while (true) {
         while (true) {
             $handler->populate($this, $_template);
             if ($this->timestamp === false || $smurty->force_compile || $smurty->force_cache) {
                 $this->valid = false;
             } else {
                 $this->valid = true;
             }
             if ($this->valid && $_template->caching == hiweb_tpl::CACHING_LIFETIME_CURRENT && $_template->cache_lifetime >= 0 && time() > $this->timestamp + $_template->cache_lifetime) {
                 // lifetime expired
                 $this->valid = false;
             }
             if ($this->valid || !$_template->smurty->cache_locking) {
                 break;
             }
             if (!$this->handler->locked($_template->smurty, $this)) {
                 $this->handler->acquireLock($_template->smurty, $this);
                 break 2;
             }
         }
         if ($this->valid) {
             if (!$_template->smurty->cache_locking || $this->handler->locked($_template->smurty, $this) === null) {
                 // load cache file for the following checks
                 if ($smurty->debugging) {
                     Smurty_Internal_Debug::start_cache($_template);
                 }
                 if ($handler->process($_template, $this) === false) {
                     $this->valid = false;
                 } else {
                     $this->processed = true;
                 }
                 if ($smurty->debugging) {
                     Smurty_Internal_Debug::end_cache($_template);
                 }
             } else {
                 continue;
             }
         } else {
             return;
         }
         if ($this->valid && $_template->caching === hiweb_tpl::CACHING_LIFETIME_SAVED && $_template->properties['cache_lifetime'] >= 0 && time() > $_template->cached->timestamp + $_template->properties['cache_lifetime']) {
             $this->valid = false;
         }
         if (!$this->valid && $_template->smurty->cache_locking) {
             $this->handler->acquireLock($_template->smurty, $this);
             return;
         } else {
             return;
         }
     }
 }
 /**
  *  restore file and line offset
  */
 public function popTrace()
 {
     if ($this->smurty->debugging) {
         Smurty_Internal_Debug::end_compile($this->template);
     }
     $r = array_pop($this->trace_stack);
     $this->smurty->_current_file = $r[0];
     $this->trace_filepath = $r[1];
     $this->trace_uid = $r[2];
     $this->trace_line_offset = $r[3];
     if ($this->smurty->debugging) {
         Smurty_Internal_Debug::start_compile($this->template);
     }
 }