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