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