eventespresso / event-espresso-core

        // add class prefix

        $widget_class = 'EEW_' . $widget;

        // does the widget exist ?

        if (! is_readable($widget_path . DS . $widget_class . $widget_ext)) {

            $msg = sprintf(

                __(

                    'The requested %s widget file could not be found or is not readable due to file permissions. Please ensure the following path is correct: %s',

                    'event_espresso'

                ),

                $widget_class,

                $widget_path . DS . $widget_class . $widget_ext

            );

            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);

            return;

        }

        // add class prefix

        $shortcode_class = 'EES_' . $shortcode;

        // does the shortcode exist ?

        if (! is_readable($shortcode_path . DS . $shortcode_class . $shortcode_ext)) {

            $msg = sprintf(

                __(

                    'The requested %s shortcode file could not be found or is not readable due to file permissions. It should be in %s',

                    'event_espresso'

                ),

                $shortcode_class,

                $shortcode_path . DS . $shortcode_class . $shortcode_ext

            );

            EE_Error::add_error($msg . '||' . $msg, __FILE__, __FUNCTION__, __LINE__);

            return false;

        }