1 <?php

     2 /**

     3  * Smarty Internal Plugin Filter Handler

     4  * Smarty filter handler class

     5  *

     6  * @package    Smarty

     7  * @subpackage PluginsInternal

     8  * @author     Uwe Tews

     9  */

    10 

    11 /**

    12  * Class for filter processing

    13  *

    14  * @package    Smarty

    15  * @subpackage PluginsInternal

    16  */

    17 class Smarty_Internal_Filter_Handler {

    18     /**

    19      * Run filters over content

    20      * The filters will be lazy loaded if required

    21      * class name format: Smarty_FilterType_FilterName

    22      * plugin filename format: filtertype.filtername.php

    23      * Smarty2 filter plugins could be used

    24      *

    25      * @param  string $type the type of filter ('pre','post','output') which shall run

    26      * @param  string $content the content which shall be processed by the filters

    27      * @param  Smarty_Internal_Template $template template object

    28      *

    29      * @throws SmartyException

    30      * @return string                   the filtered content

    31      */

    32     public static function runFilter($type, $content, Smarty_Internal_Template $template) {

    33         $output = $content;

    34         // loop over autoload filters of specified type

    35         if (!empty($template->smarty->autoload_filters[$type])) {

    36             foreach ((array)$template->smarty->autoload_filters[$type] as $name) {

    37                 $plugin_name = "Smarty_{$type}filter_{$name}";

    38                 if ($template->smarty->loadPlugin($plugin_name)) {

    39                     if (function_exists($plugin_name)) {

    40                         // use loaded Smarty2 style plugin

    41                         $output = $plugin_name($output, $template);

    42                     } elseif (class_exists($plugin_name, false)) {

    43                         // loaded class of filter plugin

    44                         $output = call_user_func(array($plugin_name, 'execute'), $output, $template);

    45                     }

    46                 } else {

    47                     // nothing found, throw exception

    48                     throw new SmartyException("Unable to load filter {$plugin_name}");

    49                 }

    50             }

    51         }

    52         // loop over registerd filters of specified type

    53         if (!empty($template->smarty->registered_filters[$type])) {

    54             foreach ($template->smarty->registered_filters[$type] as $key => $name) {

    55                 if (is_array($template->smarty->registered_filters[$type][$key])) {

    56                     $output = call_user_func($template->smarty->registered_filters[$type][$key], $output, $template);

    57                 } else {

    58                     $output = $template->smarty->registered_filters[$type][$key]($output, $template);

    59                 }

    60             }

    61         }

    62         // return filtered output

    63         return $output;

    64     }

    65 }