/**

 * Smarty plugin

 * @package Smarty

 * @subpackage plugins

 */

/**

 * Load requested plugins

 *

 * @param array $plugins

 */

// $plugins

function smarty_core_load_plugins($params, &$smarty)

{

    foreach ($params['plugins'] as $_plugin_info) {

        list($_type, $_name, $_tpl_file, $_tpl_line, $_delayed_loading) = $_plugin_info;

        $_plugin = &$smarty->_plugins[$_type][$_name];

        /*

         * We do not load plugin more than once for each instance of Smarty.

         * The following code checks for that. The plugin can also be

         * registered dynamically at runtime, in which case template file

         * and line number will be unknown, so we fill them in.

         *

         * The final element of the info array is a flag that indicates

         * whether the dynamically registered plugin function has been

         * checked for existence yet or not.

         */

        if (isset($_plugin)) {

            if (empty($_plugin[3])) {

                if (!is_callable($_plugin[0])) {

                    $smarty->_trigger_fatal_error("[plugin] $_type '$_name' is not implemented", $_tpl_file, $_tpl_line, __FILE__, __LINE__);

                } else {

                    $_plugin[1] = $_tpl_file;

                    $_plugin[2] = $_tpl_line;

                    $_plugin[3] = true;

                    if (!isset($_plugin[4])) $_plugin[4] = true; /* cacheable */

                }

            }

            continue;

        } else if ($_type == 'insert') {

            /*

             * For backwards compatibility, we check for insert functions in

             * the symbol table before trying to load them as a plugin.

             */

            $_plugin_func = 'insert_' . $_name;

            if (function_exists($_plugin_func)) {

                $_plugin = array($_plugin_func, $_tpl_file, $_tpl_line, true, false);

                continue;

            }

        }

        $_plugin_file = $smarty->_get_plugin_filepath($_type, $_name);

        if (! $_found = ($_plugin_file != false)) {

            $_message = "could not load plugin file '$_type.$_name.php'\n";

        }

        /*

         * If plugin file is found, it -must- provide the properly named

         * plugin function. In case it doesn't, simply output the error and

         * do not fall back on any other method.

         */

        if ($_found) {

            include_once $_plugin_file;

            $_plugin_func = 'smarty_' . $_type . '_' . $_name;

            if (!function_exists($_plugin_func)) {

                $smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", $_tpl_file, $_tpl_line, __FILE__, __LINE__);

                continue;

            }

        }

        /*

         * In case of insert plugins, their code may be loaded later via

         * 'script' attribute.

         */

        else if ($_type == 'insert' && $_delayed_loading) {

            $_plugin_func = 'smarty_' . $_type . '_' . $_name;

            $_found = true;

        }

        /*

         * Plugin specific processing and error checking.

         */

        if (!$_found) {

            if ($_type == 'modifier') {

                /*

                 * In case modifier falls back on using PHP functions

                 * directly, we only allow those specified in the security

                 * context.

                 */

                if ($smarty->security && !in_array($_name, $smarty->security_settings['MODIFIER_FUNCS'])) {

                    $_message = "(secure mode) modifier '$_name' is not allowed";

                } else {

                    if (!function_exists($_name)) {

                        $_message = "modifier '$_name' is not implemented";

                    } else {

                        $_plugin_func = $_name;

                        $_found = true;

                    }

                }

            } else if ($_type == 'function') {

                /*

                 * This is a catch-all situation.

                 */

                $_message = "unknown tag - '$_name'";

            }

        }

        if ($_found) {

            $smarty->_plugins[$_type][$_name] = array($_plugin_func, $_tpl_file, $_tpl_line, true, true);

        } else {

            // output error

            $smarty->_trigger_fatal_error('[plugin] ' . $_message, $_tpl_file, $_tpl_line, __FILE__, __LINE__);

        }

    }

}

/* vim: set expandtab: */

?>