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<?php
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/**
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* Smarty Internal Plugin Filter Handler
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*
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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_Filter_Handler {
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/**
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* Run filters over content
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*
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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 $template template object
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* @return string the filtered content
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*/
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public static function runFilter($type, $content, Smarty_Internal_Template $template)
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{
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$output = $content;
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// loop over autoload filters of specified type
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if (!empty($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 ($template->smarty->loadPlugin($plugin_name)) {
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if (function_exists($plugin_name)) {
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// use loaded Smarty2 style plugin
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$output = $plugin_name($output, $template);
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} elseif (class_exists($plugin_name, false)) {
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// loaded class of filter plugin
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$output = call_user_func(array($plugin_name, 'execute'), $output, $template);
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}
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} else {
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// nothing found, throw exception
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throw new SmartyException("Unable to load filter {$plugin_name}");
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}
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}
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}
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// loop over registerd 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 => $name) {
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if (is_array($template->smarty->registered_filters[$type][$key])) {
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$output = call_user_func($template->smarty->registered_filters[$type][$key], $output, $template);
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} else {
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$output = $template->smarty->registered_filters[$type][$key]($output, $template);
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}
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}
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}
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// return filtered output
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return $output;
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}
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}
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?> |