Latte - evoluce registrace maker a helperů (filtrů)

function createTemplate($class = NULL)
{
    $template = parent::createTemplate($class);
    $template->registerHelper('markdown', ['Markdown', 'parse']);

    return $template;
}

function templatePrepareFilters($template)
{
    $latte = new Nette\Latte\Engine();
    MarkdownMacros::install($latte->getCompiler());

    $template->registerFilter($latte);
}

function createTemplate($class = NULL)
{
    $template = parent::createTemplate($class);
    $template->registerHelper('markdown', ['Markdown', 'parse']);

    return $template;
}

nette:
    latte:
        macros: MarkdownMacros::install
        # nebo
        macros: MarkdownMacros

services:
    nette.latteFactory:
        setup:
            - addFilter('markdown', 'Markdown::parse');
            # nebo
            - addFilter('markdown', ['Markdown', 'parse']);

nette:
    latte:
        macros: MarkdownMacros::install
        # nebo
        macros: MarkdownMacros # install se doplni automaticky

class Helpers
{
    public static function loader($filter, $value)
    {
        if (method_exists(__CLASS__, $filter)) {
            $args = func_get_args();
            array_shift($args);
            return call_user_func_array(array(__CLASS__, $filter), $args);
        }
    }

    public static function markdown($s)
    {
       // ...
    }
}

$latte->registerFilter(NULL, 'Helpers::loader');

class Helpers
{
    public static function loader($helper)
    {
        if (method_exists(__CLASS__, $helper)) {
            return new Nette\Callback(__CLASS__, $helper);
        } elseif (isset(self::$helpers[$helper])) {
            return self::$helpers[$helper];
        }
    }

    public static function markdown($s)
    {
       // ...
    }
}

$template->registerHelperLoader('Helpers::loader');