gistfile1.txt

<?php

class Kostache_Page extends Kostache_Base {

    /**
     * @return Kostache_Page
     */
    public static function factory()
    {
        $m = new Mustache_Engine(
            array(
                'loader' => new Mustache_Loader_Kohana(),
                'partials_loader' => new Mustache_Loader_Kohana('templates/partials'),
                'escape' => function($value) {
                    return HTML::chars($value);
                },
                'cache' => APPPATH.'cache/mustache',
            )
        );

        $class = get_called_class();
        return new $class($m);
    }

    public function render($class, $template = NULL)
    {
        $content = parent::render($class, $template);

        return str_replace([
            '[[assets_head]]',
            '[[assets_body]]',
            '</form>',
        ], [
            $class->assets_head(),
            $class->assets_body(),
            Form::hidden('csrf', Security::token())."\n".'</form>',
        ], $content);
    }

}