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<?php
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/**
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* Smarty Internal Plugin Filter Handler
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* Smarty filter handler class
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*
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* @package Smarty
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* @subpackage PluginsInternal
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* @author Uwe Tews
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*/
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/**
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* Class for filter processing
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*
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* @package Smarty
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* @subpackage PluginsInternal
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*/
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class Smarty_Internal_Runtime_FilterHandler
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{
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/**
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* Run filters over content
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* The filters will be lazy loaded if required
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* class name format: Smarty_FilterType_FilterName
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* plugin filename format: filtertype.filtername.php
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* Smarty2 filter plugins could be used
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*
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* @param string $type the type of filter ('pre','post','output') which shall run
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* @param string $content the content which shall be processed by the filters
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* @param Smarty_Internal_Template $template template object
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*
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* @throws SmartyException
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* @return string the filtered content
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*/
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public function runFilter($type, $content, Smarty_Internal_Template $template)
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{
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// loop over autoload filters of specified type
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if (!empty($template->smarty->autoload_filters[ $type ])) {
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foreach ((array)$template->smarty->autoload_filters[ $type ] as $name) {
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$plugin_name = "Smarty_{$type}filter_{$name}";
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if (function_exists($plugin_name)) {
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$callback = $plugin_name;
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} elseif (class_exists($plugin_name, false) && is_callable(array($plugin_name, 'execute'))) {
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$callback = array($plugin_name, 'execute');
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} elseif ($template->smarty->loadPlugin($plugin_name, false)) {
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if (function_exists($plugin_name)) {
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// use loaded Smarty2 style plugin
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$callback = $plugin_name;
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} elseif (class_exists($plugin_name, false) && is_callable(array($plugin_name, 'execute'))) {
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// loaded class of filter plugin
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$callback = array($plugin_name, 'execute');
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} else {
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throw new SmartyException("Auto load {$type}-filter plugin method '{$plugin_name}::execute' not callable");
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}
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} else {
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// nothing found, throw exception
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throw new SmartyException("Unable to auto load {$type}-filter plugin '{$plugin_name}'");
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}
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$content = call_user_func($callback, $content, $template);
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}
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}
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// loop over registered filters of specified type
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if (!empty($template->smarty->registered_filters[ $type ])) {
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foreach ($template->smarty->registered_filters[ $type ] as $key => $name) {
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$content = call_user_func($template->smarty->registered_filters[ $type ][ $key ], $content, $template);
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}
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}
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// return filtered output
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return $content;
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}
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}
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